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1 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
2
3         * function.h (frame_offset_overflow): Declare.
4         * function.c (frame_offset_overflow): New function.
5         (assign_stack_local_1): Call it to detect that the offset overflows.
6         * cfgexpand.c (alloc_stack_frame_space): Likewise.
7
8 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
9
10         * config/sh/sh.c: Include alloc-pool.h.
11         (label_ref_list_pool): New alloc pool.
12         (label_ref_list_t): New type for lists of labels.
13         (struct pool_node): Make wend a label_ref_list_t.
14         (add_constant): Use the new type, eradicate LABEL_NEXTREF
15         references.
16         (dump_table): Likewise.
17         (sh_reorg): Set up the alloc pool before using add_constant and
18         dump_table, and destroy it when finishing.
19
20 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
21
22         * config/mips/mips.c: Remove redundant comment.
23
24 2006-03-10  Jason Merrill  <jason@redhat.com>
25
26         PR c/26004
27         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if 
28         the target was declared 'register'.
29
30 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
31
32         * genpreds.c (write_insn_constraint_len): Change definition of
33         insn_constraint_len to return size_t to match the declaration.
34
35 2006-03-10  DJ Delorie  <dj@redhat.com>
36
37         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
38         start at zero.
39         (m32c_expand_insv): Fix test for an AND mask.
40
41 2006-03-10  Richard Guenther  <rguenther@suse.de>
42
43         PR middle-end/26565
44         * builtins.c (get_pointer_alignment): Handle component
45         references for field alignment.
46
47 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
48
49         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
50         when building with libgloss.
51         (sh*elf): Implement --without-fp option.
52         (sh64-superh-linux*): Don't multilib. 
53
54 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
55
56         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
57
58 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
59
60         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
61         Set it when one of the replacement functions returned true.
62         Return TODO_cleanup_cfg if cfgchanged is true.
63         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
64
65 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
66
67         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
68         instead of gen_lowpart.
69
70 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
71
72         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
73         interface.
74         (mips_output_order_conditional_branch): Declare.
75         * config/mips/mips.h (MIPS_BRANCH): New macro.
76         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
77         for the comparison.  Use gen_condjump.
78         (mips_output_conditional_branch): Rework interface to take the
79         asm templates for a direct branch and the inverse of a direct branch.
80         (mips_output_order_conditional_branch): New function.
81         (mips_builtin_branch_and_move): New function.
82         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
83         branch condition.  Use gen_single_cc as the condition for
84         __builtin_mips_upper_* or __builtin_mips_lower_*.
85         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
86         Use VOIDmode for the branch condition.
87         * config/mips/predicates.md (order_operator): New predicate.
88         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
89         (branch_fp): Rename to...
90         (*branch_fp): ...this.  Remove mode from comparison operator.
91         Use new mips_output_conditional_branch interface.
92         (branch_fp_inverted): Rename to...
93         (*branch_fp_inverted): ...this and update as for *branch_fp.
94         (*branch_zero<mode>): Rename to...
95         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
96         Use mips_output_order_conditional_branch.  Only accept ordered
97         comparisons.  
98         (*branch_zero<mode>_inverted): Rename to...
99         (*branch_order<mode>_inverted): ...this and update as for
100         *branch_order<mode>.
101         (*branch_equality<mode>): Accept zero as the second operand to
102         the equality operator.  Use the new mips_output_conditional_branch
103         interface.
104         (*branch_equality<mode>_inverted): Likewise.
105         (condjump): New expander.
106         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
107         operator.
108         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
109         (bc1any2t, bc1any2f): Likewise.
110         (single_cc): New expander.
111         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
112
113 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
114
115         * doc/md.texi: Update documentation of MIPS constraints.
116         * config/mips/constraints.md: New file.
117         * config/mips/mips.md: Include it.
118         * config/mips/mips.c (mips_char_to_class): Delete.
119         (override_options): Don't initialize mips_char_to_class.
120         * config/mips/mips.h (mips_char_to_class): Delete.
121         (REG_CLASS_FROM_LETTER): Delete.
122         (CONST_OK_FOR_LETTER_P): Delete.
123         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
124         (EXTRA_CONSTRAINT_Y): Delete.
125         (EXTRA_CONSTRAINT_STR): Delete.
126         (CONSTRAINT_LEN): Delete.
127         (EXTRA_MEMORY_CONSTRAINT): Delete.
128
129 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
130
131         * tree-cfg.c (move_block_to_fn): Remove the statements from the
132         original fn's eh regions.
133
134 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
135
136         * fold-const.c (build_range_check): Make sure to use a valid type to
137         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
138         transformation.
139
140         (range_predecessor): New static function.
141         (range_successor): Likewise.
142         (merge_ranges): Use them to compute predecessors and successors of
143         range bounds.
144
145 2006-03-09  Roger Sayle  <roger@eyesopen.com>
146
147         PR middle-end/26561
148         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
149         X op C3, consider whether C3 overflows towards +Inf or -Inf.
150
151 2006-03-08  DJ Delorie  <dj@redhat.com>
152
153         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
154         (addpsi3): Expand to include memory operands.  Remove
155         reload-specific splits.
156         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
157         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
158         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
159         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
160         (shift1_qi, shift1_hi, insv): New.
161         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
162         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
163         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
164         cond_to_int): New.
165         * config/m32c/m32c-protos.h: Update as needed.
166         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
167         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
168         Fail for unrecognized R* constraints.
169         (m32c_cannot_change_mode_class): Be more picky about pseudos.
170         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
171         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
172         Add Sp constraint.
173         (m32c_init_libfuncs): New.
174         (m32c_legitimate_address_p): Add debug wrapper.
175         (m32c_rtx_costs): New.
176         (m32c_address_cost): New.
177         (conversions): Add 'B' prefix.
178         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
179         operands, or word regnames for QI operands.  'B' prints bit
180         position.
181         (m32c_expand_setmemhi): New.
182         (m32c_expand_movmemhi): New.
183         (m32c_expand_movstr): New.
184         (m32c_expand_cmpstr): New.
185         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
186         (m32c_expand_neg_mulpsi3): Handle non-ints.
187         (m32c_cmp_flg_0): New.
188         (m32c_expand_movcc): New.
189         (m32c_expand_insv): New.
190         (m32c_scc_pattern): New.
191         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
192         a0/a1 out of SIregs.
193         (STORE_FLAG_VALUE): New.
194         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
195         code macros.
196         (no_insn): New.
197         * config/m32c/mov.md: Make constraints more liberal.
198         (zero_extendqihi2): Optimize r0/r1 case.
199         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
200         * config/m32c/predicates.md (m32c_any_operand): New.
201         (m32c_nonimmediate_operand): New.
202         (m32c_hl_operand): New.
203         (m32c_r3_operand): New.
204         (ap_operand): New.
205         (ma_operand): New.
206         (memsym_operand): New.
207         (memimmed_operand): New.
208         (a_qi_operand): New.
209         (m32c_eqne_operator): New.
210         (m32c_1bit8_operand): New.
211         (m32c_1bit16_operand): New.
212         (m32c_1mask8_operand): New.
213         (m32c_1mask16_operand): New.
214         * config/m32c/blkmov.md: New file.
215         * config/m32c/t-m32c (MD_FILES): Add blkmov.
216
217 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
218
219         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
220         unsigned to fix signed/unsigned comparison issue in
221         DWARF2_FRAME_REG_OUT.
222         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
223         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
224
225         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
226         of ptr into the ENABLE_CHECKING section.
227
228 2006-03-08  Jeff Law  <law@redhat.com>
229
230         * tree-vrp.c (infer_value_range): Only count pointer uses
231         and dereferences if -fdelete-null-pointer-checks is enabled.
232
233         * tree-vrp.c (find_assert_locations): Infer value ranges for
234         single use pointers, but do not create ASSERT_EXPRs for them.
235         When a non-null range is inferred for a pointer, backwards
236         propagate that range to other equivalent pointers through the
237         use-def chain.
238
239 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
240
241         PR bootstrap/26500
242         * Makefile.in (dvi, html, install-info): Invoke the corresponding
243         language hook targets.
244         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
245         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
246         if language hook targets were missing.
247
248 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
249
250         * tree-ssa-opfinalize.h: Removed.
251         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
252         dependency.
253         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
254         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
255         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
256         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
257         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
258         finalize_ssa_v_must_def_ops): New.
259
260 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
261
262         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
263         block as parameter.
264
265 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
266
267         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
268
269         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
270         addresses with offsets; reorganize.
271
272         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
273         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
274         (expand_builtin_init_dwarf_reg_sizes): Likewise.
275
276 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
277
278         PR target/26588
279         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
280
281 2006-03-08  Ben Elliston  <bje@au.ibm.com>
282
283         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
284
285 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
286
287         PR gomp/26238
288         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
289         expansion.
290
291 2006-03-07  Richard Guenther  <rguenther@suse.de>
292
293         PR tree-optimization/26587
294         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
295
296 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
297
298         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
299
300 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
301
302         * hooks.c (hook_bool_mode_rtx_true): New function.
303         * hooks.h (hook_bool_mode_rtx_true): Declare.
304         * toplev.c (compile_file): Call output_shared_constant_pool.
305         * varasm.c (shared_constant_pool): New variable.
306         (assemble_start_function, assemble_end_function): Remove arguments
307         from call to output_constant_pool.
308         (create_constant_pool): New function, split out from...
309         (init_varasm_status): ...here.
310         (force_const_mem): Choose between the shared and per-function constant
311         pools.  Set current_function_uses_const_pool when reusing old entries
312         as well as when creating new ones.
313         (mark_constant): Ignore data argument.
314         (mark_constants): Remove pool argument.
315         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
316         to decide whether the function uses a constant pool.
317         (output_constant_pool_contents): New function, split out from...
318         (output_constant_pool): ...here.
319         (output_shared_constant_pool): New function.
320         (init_varasm_once): Initialize shared_constant_pool.
321         * output.h (output_constant_pool): Delete.
322         (output_shared_constant_pool): Declare.
323         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
324         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
325
326 2006-03-06  Nick Clifton  <nickc@redhat.com>
327
328         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
329         flag_strength_reduce.
330
331 2006-03-06  Ben Elliston  <bje@au.ibm.com>
332
333         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
334         x86_64-*-linux* configurations.
335
336         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
337         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
338
339 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
340
341         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
342         Remove.
343         * basic-block.h: Remove the extern for
344         rediscover_loops_after_threading.
345
346         * cfgloop.c (cancel_loop): Make it static.
347         * cfgloop.h: Remove the prototype for cancel_loop.
348
349         * flow.c (recompute_reg_usage): Make it static.
350         * rtl.h: Remove the prototype for recompute_reg_usage.
351
352         * function.c (use_return_register): Make it static.
353         * function.h: Remove the prototype.
354
355 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
356
357         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
358         Remove.
359         * recog.h: Remove the prototype for
360         validate_change_maybe_volatile.
361
362 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
363
364         * rtlanal.c (replace_reg): Remove.
365         * rtl.h: Remove the prototype for replace_reg.
366
367 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
368
369         * regclass.c (reg_scan_update): Remove.
370         (reg_scan_mark_refs): Remove the last argument.
371         * rtl.h: Remove the prototype for reg_scan_update.
372
373 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
374
375         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
376         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
377         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
378         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
379         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
380         loop-invariant.c, omp-low.c, opts.c, passes.c,
381         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
382         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
383         tree-ssa-structalias.c, tree-ssa-threadedge.c,
384         tree-ssa-threadupdate.c, tree-vect-patterns.c,
385         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
386         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
387
388 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
389
390         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
391         * dwarf2out.h: Remove the prototype for
392         dwarf2out_add_library_unit_info.
393
394 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
395
396         * tree.c (add_var_to_bind_expr): Remove.
397         * tree.h: Remove the prototype for add_var_to_bind_expr.
398
399 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
400
401         * regclass.c (n_non_fixed_regs): Remove.
402         (init_reg_sets_1, globalize_reg): Remove all uses of
403         n_non_fixed_regs.
404         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
405
406 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
407
408         * rtlanal.c (insns_safe_to_move_p): Remove.
409         * rtl.h: Remove the prototype for insns_safe_to_move_p.
410
411 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
412
413         * expmed.c (expand_mult_add): Remove.
414         * expr.h: Remove the prototype for expand_mult_add.
415
416 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
417
418         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
419         and REG_SAVED_VAL_EXP constants.
420         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
421         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
422         Handle regs stored by value.
423         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
424         (execute_cfa_program): Handle DW_CFA_val_offset,
425         DW_CFA_val_offset_sf and DW_CFA_val_expression.
426         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
427         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
428         (uw_install_context_1): Handle target regs stored by value.
429
430 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
431
432         * tree-sra.c (tree_sra): Return todoflags;
433         (generate_one_element): Set TODO_update_smt_usage if needed.
434         (pass_sra): Remove TODO_update_smt_usage.
435         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
436         parameter.
437         (tree_ssa_forward_propagate_single_use_vars): Return
438         TODO_update_smt_usage if we need to update SMT usage.
439         (pass_forwprop): Remove TODO_update_smt_usage.
440         
441 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
442
443         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
444         (correct_use_link): Remove reference to get_stmt_operands.
445         (update_stmt_operands): Likewise.
446         (get_modify_expr_operands): New function factored out of
447         parse_ssa_operands and get_expr_operands.
448         Try to create V_MUST_DEFs for LHS by default.
449         (get_expr_operands) <case MODIFY_EXPR>: Call
450         get_modify_expr_operands.
451         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
452         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
453         (parse_ssa_operands) <case MODIFY_EXPR>: Call
454         get_modify_expr_operands.
455
456 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
457
458         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
459         * tree-flow.h: Remove the prototype for
460         referenced_var_lookup_if_exists.
461
462 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
463
464         PR rtl-optimization/26345
465         PR target/19061
466         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
467
468 2006-03-03  Roger Sayle  <roger@eyesopen.com>
469
470         PR tree-optimization/26524
471         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
472         fold_convert to create a constant of the appropriate type.
473
474 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
475
476         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
477         SYMBOL_REF_IN_BLOCK_P.
478         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
479         of SYMBOL_FLAG_IN_BLOCK.
480         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
481         instead of SYMBOL_REF_IN_BLOCK_P.
482         * explow.c (use_anchored_address): Likewise.
483         * rtl.c (rtx_size): Likewise.
484         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
485         instead of SYMBOL_FLAG_IN_BLOCK.
486         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
487         SYMBOL_REF_IN_BLOCK_P.
488         (assemble_variable): Likewise.
489         (output_constant_def_contents): Likewise.
490         (output_constant_pool): Likewise.
491         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
492         instead of SYMBOL_FLAG_IN_BLOCK.
493         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
494         SYMBOL_REF_IN_BLOCK_P.
495         (SYMBOL_REF_BLOCK): Likewise.
496         (SYMBOL_REF_OFFSET): Likewise.
497         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
498         SYMBOL_REF_IN_BLOCK_P.
499         (SYMBOL_FLAG_IN_BLOCK): Replace with...
500         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
501         (SYMBOL_REF_IN_BLOCK_P): Replace with...
502         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
503
504 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
505
506         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
507
508 2006-03-02  Roger Sayle  <roger@eyesopen.com>
509
510         * simplify-rtx.c (simplify_unary_operation): When simplifying
511         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
512         that we perform the right shift in the appropriate mode, and
513         then extend or truncate the result to requested mode.
514
515 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
516
517         * gengtype.c (main): Handle double_int type.
518         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
519         * double-int.c: New file.
520         * double-int.h: New file.
521         * system.h: Include doubleint.h.
522         * Makefile.in (SYSTEM_H): Include double-int.h.
523         (double-int.o): Add.
524
525 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
526
527         PR bootstrap/26478
528         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
529         copying over it.
530
531 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
532
533         * tree-vrp.c (remove_range_assertions): Do not update statements
534         unnecessarily.
535
536 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
537
538         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
539         cleanup.
540         * gcse.c (rest_of_handle_gcse): Ditto.
541         * except.c (gate_handle_eh): Ditto.
542         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
543         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
544
545 2006-03-02  Eric Christopher  <echristo@apple.com>
546
547         * config/i386/i386.c (machopic_output_stub): Add indirection to
548         jump.
549
550 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
551
552         * loop.c: Removed.
553
554 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
555
556         Sun Niagara specific optimizations.
557         * config.gcc: Recognize niagara as target.
558         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
559         (TARGET_CPU_niagara): Define.
560         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
561         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
562         (CPP_CPU_SPEC): Handle -mcpu=niagara.
563         (ASM_CPU_SPEC): Likewise.
564         (PROCESSOR_NIAGARA): New enum entry.
565         (REGISTER_MOVE_COST): Handle Niagara.
566         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
567         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
568         (sparc_override_options): Recognize "niagara", set appropriate
569         default MASK_* values for it, and align functions to 32-bytes
570         by default just like ULTRASPARC/ULTRASPARC3.
571         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
572         (sparc64_initialize_trampoline): Likewise.
573         (sparc_use_sched_lookahead): Use zero for niagara.
574         (sparc_issue_rate): Use one for niagara.
575         * config/sparc/niagara.md: New file.
576         * config/sparc/sparc.md: Include it.
577         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
578         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
579         when default cpu is niagara.
580         (CPP_CPU_SPEC): Handle -mcpu=niagara.
581         (ASM_CPU_SPEC): Likewise.
582         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
583         when default cpu is niagara.
584         (ASM_CPU_SPEC): Handle -mcpu=niagara.
585         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
586         just like v9/ultrasparc/ultrasparc3.
587         * doc/invoke.texi: Add documentation for "niagara" and improve
588         existing documentation for ultrasparc variants.
589
590 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
591
592         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
593
594 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
595
596         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
597         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
598         and say that only one is needed.
599         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
600         * target.h (have_switchable_bss_sections): New hook.
601         * explow.c (use_anchored_address): Check that the symbol is in a block.
602         * varasm.c (tls_comm_section, comm_section, lcomm_section)
603         (bss_noswitch_section): New variables.
604         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
605         (get_noswitch_section): New function.
606         (get_block_for_section): Allow SECT to be null.
607         (unlikely_text_section_p): Use SECTION_STYLE.
608         (bss_initializer_p): New function.
609         (get_variable_section): Move earlier in file.  Take a new argument,
610         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
611         Return one of the new *_sections in such cases.
612         (get_block_for_decl): New function, extracting some logic from
613         use_blocks_for_decl_p.
614         (change_symbol_section): Remove in favor of...
615         (change_symbol_block): ...this new function.
616         (use_blocks_for_decl_p): Remove checks now performed by
617         get_block_for_decl.
618         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
619         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
620         (emit_local, emit_bss, emit_common): ...these new functions.
621         Return true if the alignment was honored.
622         (emit_tls_common): New function.
623         (asm_emit_uninitialised): Delete.
624         (assemble_variable_noswitch): New function, split out from...
625         (assemble_variable): ...here.  Don't make decisions about common
626         variables here.  Globalize all public decls that go into non-common
627         sections.  Check whether SYMBOL_REF_BLOCK is null.
628         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
629         (output_constant_pool): Likewise.
630         (init_varasm_once): Initialize the new section variables.
631         (have_global_bss_p): New function.
632         (categorize_decl_for_section): Use bss_initializer_p.
633         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
634         (place_block_symbol): Assert that the symbol must be in a block.
635         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
636         (TARGET_INITIALIZER): Include it.
637         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
638         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
639         (SECTION_MACH_DEP): Bump by two.
640         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
641         (unnamed_section): Mention SECTION_UNNAMED in comment.
642         (named_section): Likewise SECTION_NAMED.
643         (noswitch_section_callback): New type.
644         (noswitch_section): New structure.
645         (section): Add a noswitch_section alternative.
646         (SECTION_STYLE): New macro.
647         (tls_comm_section, comm_section, lcomm_section): Declare.
648         (bss_noswitch_section, have_global_bss_p): Declare.
649         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
650         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
651         Override.
652         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
653         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
654         Override.
655
656 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
657
658         * gcc/tree-vrp.c (execute_vrp): Return value.
659         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
660         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
661         * gcc/tree-complex.c (tree_lower_complex): Ditto.
662         (tree_lower_complex_O0): Ditto.
663         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
664         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
665         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
666         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
667         (execute_tail_calls): Ditto.
668         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
669         * gcc/tree.h (init_function_for_compilation): Ditto.
670         * gcc/ipa-cp.c (ipcp_driver): Ditto.
671         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
672         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
673         * gcc/final.c (compute_alignments): Ditto.
674         (rest_of_handle_final): Ditto.
675         (rest_of_handle_shorten_branches): Ditto.
676         (rest_of_clean_state): Ditto.
677         * gcc/omp-low.c (execute_expand_omp): Ditto.
678         (execute_lower_omp): Ditto.
679         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
680         * gcc/ipa-reference.c (static_execute): Ditto.
681         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
682         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
683         (rest_of_handle_machine_reorg): Ditto.
684         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
685         * gcc/flow.c (recompute_reg_usage): Ditto.
686         (rest_of_handle_remove_death_notes): Ditto.
687         (rest_of_handle_life): Ditto.
688         (rest_of_handle_flow2): Ditto.
689         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
690         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
691         (do_ssa_store_ccp): Ditto.
692         (execute_fold_all_builtins): Ditto.
693         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
694         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
695         * gcc/ipa-pure-const.c (static_execute): Ditto.
696         * gcc/cse.c (rest_of_handle_cse): Ditto.
697         (rest_of_handle_cse2): Ditto.
698         * gcc/web.c (rest_of_handle_web): Ditto.
699         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
700         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
701         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
702         * gcc/tree-nrv.c (tree_nrv): Ditto.
703         (execute_return_slot_opt): Ditto.
704         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
705         (create_structure_vars): Ditto.
706         * gcc/loop-init.c (rtl_loop_init): Ditto.
707         (rtl_loop_done): Ditto.
708         (rtl_move_loop_invariants): Ditto.
709         (rtl_unswitch): Ditto.
710         (rtl_unroll_and_peel_loops): Ditto.
711         (rtl_doloop): Ditto.
712         * gcc/gimple-low.c (lower_function_body): Ditto.
713         (mark_used_blocks): Ditto.
714         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
715         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
716         (cgraph_early_inlining): Ditto.
717         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
718         * gcc/jump.c (cleanup_barriers): Ditto.
719         (purge_line_number_notes): Ditto.
720         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
721         (rest_of_handle_if_after_reload): Ditto.
722         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
723         (tree_ssa_loop_im): Ditto.
724         (tree_ssa_loop_unswitch): Ditto.
725         (tree_vectorize): Ditto.
726         (tree_linear_transform): Ditto.
727         (tree_ssa_loop_ivcanon): Ditto.
728         (tree_ssa_empty_loop): Ditto.
729         (tree_ssa_loop_bounds): Ditto.
730         (tree_complete_unroll): Ditto.
731         (tree_ssa_loop_prefetch): Ditto.
732         (tree_ssa_loop_ivopts): Ditto.
733         (tree_ssa_loop_done): Ditto.
734         * gcc/predict.c (tree_estimate_probability): Ditto.
735         * gcc/recog.c (split_all_insns_noflow): Ditto.
736         (rest_of_handle_peephole2): Ditto.
737         (rest_of_handle_split_all_insns): Ditto.
738         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
739         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
740         (rest_of_handle_stack_adjustments): Ditto.
741         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
742         * gcc/function.c (instantiate_virtual_regs): Ditto.
743         (init_function_for_compilation): Ditto.
744         (rest_of_handle_check_leaf_regs): Ditto.
745         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
746         (rest_of_handle_gcse): Ditto.
747         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
748         * gcc/alias.c (rest_of_handle_cfg): Ditto.
749         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
750         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
751         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
752         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
753         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
754         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
755         * gcc/except.c (set_nothrow_function_flags): Ditto.
756         (convert_to_eh_region_ranges): Ditto.
757         (rest_of_handle_eh): Ditto.
758         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
759         (remove_unnecessary_notes): Ditto.
760         * gcc/except.h (set_nothrow_function_flags): Ditto.
761         (convert_to_eh_region_ranges): Ditto.
762         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
763         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
764         * gcc/tree-ssa-pre.c (do_pre): Ditto.
765         (execute_fre): Ditto.
766         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
767         (rest_of_handle_jump2): Ditto.
768         * gcc/tree-sra.c (tree_sra): Ditto.
769         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
770         (execute_mudflap_function_decls): Ditto.
771         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
772         (do_store_copy_prop): Ditto.
773         * gcc/ipa-prop.h (ipcp_driver): Ditto.
774         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
775         * gcc/tree-ssa-forwprop.c
776         (tree_ssa_forward_propagate_single_use_vars): Ditto.
777         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
778         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
779         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
780         (execute_late_warn_uninitialized): Ditto.
781         * gcc/rtl.h (cleanup_barriers): Ditto.
782         (split_all_insns_noflow): Ditto.
783         (purge_line_number_notes): Ditto.
784         (unshare_all_rtl): Ditto.
785         (remove_unnecessary_notes): Ditto.
786         (recompute_reg_usage): Ditto.
787         (variable_tracking_main): Ditto.
788         * gcc/integrate.c (emit_initial_value_sets): Ditto.
789         * gcc/integrate.h (emit_initial_value_sets): Ditto.
790         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
791         (execute_free_cfg_annotations): Ditto.
792         (execute_fixup_cfg): Ditto.
793         (execute_cleanup_cfg_pre_ipa): Ditto.
794         (execute_cleanup_cfg_post_optimizing): Ditto.
795         (execute_init_datastructures): Ditto.
796         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
797         * gcc/combine.c (rest_of_handle_combine): Ditto.
798         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
799         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
800         (rest_of_handle_reorder_blocks): Ditto.
801         (rest_of_handle_partition_blocks): Ditto.
802         * gcc/var-tracking.c (variable_tracking_main): Ditto.
803         * gcc/tree-profile.c (tree_profiling): Ditto.
804         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
805         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
806         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
807         (rest_of_handle_sched2): Ditto.
808         * gcc/basic-block.h (free_bb_insn): Ditto.
809         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
810         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
811         (remove_useless_stmts): Ditto.
812         (split_critical_edges): Ditto.
813         (execute_warn_function_return): Ditto.
814         (execute_warn_function_noreturn): Ditto.
815         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
816         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
817         * gcc/passes.c (execute_one_pass): Run additional
818         todos returned by execute function.
819         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
820         return a value.
821
822 2006-03-02  Richard Guenther  <rguenther@suse.de>
823
824         * tree-ssa-alias.c (find_used_portions): Consider taking
825         the address as making the variable not write-only.
826
827 2006-03-02  Nick Clifton  <nickc@redhat.com>
828
829         * config.gcc (default_use_cxa_atexit): Extend the description of
830         this configure variable.  Set its default value to "yes" for
831         Linux, NetBSD and ELF targets on the assumption that they will
832         use C libraries with the __cxa_atexit function.
833
834 2006-03-02  Ben Elliston  <bje@au.ibm.com>
835
836         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
837         parameter as unused to suppress a build warning.
838
839 2006-03-02  Ben Elliston  <bje@au.ibm.com>
840
841         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
842         config/dfp-bit.c.
843
844 2006-03-01  Roger Sayle  <roger@eyesopen.com>
845
846         PR other/26489
847         * gthr-posix.h (__gthrw2): Define to take three parameters, the
848         declared name, the weak reference name, and the typeof name.
849         (__gthrw): Avoid expanding the declared name suffix.
850         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
851
852 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
853
854         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
855         from DWARF 3.
856         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
857         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
858         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
859         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
860         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
861         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
862         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
863         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
864         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
865         DW_DS_leading_separate, DW_DS_trailing_separate): New.
866         (DW_END_default, DW_END_big, DW_END_little): New.
867         (DW_END_lo_user, DW_END_hi_user): Define.
868         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
869         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
870         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
871         DW_LANG_D): New.
872
873 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
874
875         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
876         Update all users.
877         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
878         Update all users.
879         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
880         Update all users.
881         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
882         Update all users.
883         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
884         to 'symbol_mem_tag'.
885         Update all users.
886         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
887         rename.
888
889 2006-03-01  Roger Sayle  <roger@eyesopen.com>
890
891         * builtins.c (fold_builtin_copysign): Delete unreachable code.
892
893 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
894
895         PR target/25761
896         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
897         MACHO_DYNAMIC_NO_PIC_P.
898         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
899
900 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
901
902         PR target/26389
903         * config/darwin-protos.h (darwin_asm_output_anchor):
904         Declare.
905         * config/darwin-sections.def (cstring_section):
906         Add SECTION_MERGE to the flags.
907         (literal4_section): Likewise.
908         (literal8_section): Likewise.
909         (objc_selector_refs_section): Likewise.
910         (objc_cls_refs_section): Likewise.
911         * config/darwin.c (darwin_asm_output_anchor): New
912         function.
913         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
914
915 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
916
917         Fix PR tree-optimization/26443
918         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
919         to todo and PROP_tmt_usage to properties_destroyed.
920         * tree-ssa-ccp.c (pass_ccp): Ditto.
921         (pass_store_ccp): Ditto.
922         * tree-ssa-dom.c (pass_dominator): Ditto.
923
924 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
925
926         * tree-ssa-operands.c: Cleanup whitespace.
927         (get_asm_expr_operands): Move before first invocation.
928         (get_indirect_ref_operands): Likewise.
929         (get_tmr_operands): Likewise.
930         (get_call_expr_operands): Likewise.
931         (append_def): Likewise.
932         (append_use): Likewise.
933         (append_v_may_def): Likewise.
934         (append_v_must_def): Likewise.
935         (add_call_clobber_ops): Likewise.
936         (add_call_read_ops): Likewise.
937         (add_stmt_operand): Likewise.
938         (add_virtual_operand): Likewise.
939         (build_ssa_operands): Likewise.
940
941 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
942
943         PR middle-end/26022
944         Revert:
945         PR middle-end/24437
946         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
947         with a call expr to ...
948         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
949
950 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
951
952         * tree-vrp.c (extract_range_from_assert): Remove special
953         handling for types with super-types.
954
955 2006-03-01  Ben Elliston  <bje@au.ibm.com>
956
957         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
958         and powerpc64-*-linux* configurations.
959         * config/t-dfprules: New file.
960
961         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
962         Compile dfp-bit.c from the source directory using -DWIDTH and
963         $DFP_CFLAGS to control the compilation of that file, rather than
964         generating width-specific versions in the build directory.
965         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
966         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
967
968 2006-02-28  Zack Weinberg  <zackw@panix.com>
969
970         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
971         continues to work.
972
973 2006-02-28  Eric Christopher  <echristo@apple.com>
974
975         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
976         Set up IN_LIBGCC definition of TARGET_64BIT.
977         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
978
979 2006-02-28  Roger Sayle  <roger@eyesopen.com>
980
981         PR middle-end/14752
982         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
983         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
984         cases via the construction of "expr != 0".
985
986 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
987
988         * alias.c (alias_invariant, alias_invariant_size): Remove.
989         (record_base_value): Remove.
990         (memrefs_conflict_p): Don't look at alias_invariant.
991         (end_alias_analysis): Don't free it.
992         * alias.h (record_base_value): Remove prototype.
993
994 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
995             Adam Nemet  <anemet@caviumnetworks.com>
996
997         * rtl.h (truncated_to_mode): Declare it.
998         (struct rtl_hooks): Add reg_truncated_to_mode hook.
999         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
1000         (RTL_HOOKS_INITIALIZER): Include it.
1001         * rtlhooks.c (reg_truncated_to_mode_general): New function.
1002         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
1003         reg_truncated_to_mode.
1004         * rtlanal.c (truncated_to_mode): Define it.
1005         * simplify-rtx.c (simplify_unary_operation_1): Use it.
1006
1007 2006-02-28  Jeff Law  <law@redhat.com>
1008
1009         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
1010         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
1011         the range allowed by TYPE_PRECISION.
1012
1013         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
1014
1015 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
1016
1017         PR tree-optimization/26419
1018         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
1019         values of n.
1020
1021 2006-02-27  Zack Weinberg  <zackw@panix.com>
1022
1023         * doc/md.texi: Fix typo in previous change.
1024
1025 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
1026
1027         * df.c: Remove.
1028
1029 2006-02-27  Zack Weinberg  <zackw@panix.com>
1030
1031         * rtl.def (define_constraint, define_register_constraint)
1032         (define_memory_constraint, define_address_constraint): New MD forms.
1033         * gensupport.c (process_rtx): Put define_constraint etc on the
1034         predicate queue.
1035         * genpreds.c (process_define_predicate): Adjust comment.  Validate
1036         the name, and call validate_exp to validate the expression.
1037         (mark_mode_tests, write_extract_subexp): Can assume correct input.
1038         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
1039         all callers changed.
1040         (validate_exp, needs_variable, struct constraint_data)
1041         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
1042         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
1043         (const_dbl_constraints, constraint_max_namelen)
1044         (have_register_constraints, have_memory_constraints)
1045         (have_address_constraints, have_address_constraints)
1046         (have_extra_constraints, have_const_int_constraints)
1047         (have_const_dbl_constraints, mangle, add_constraint)
1048         (process_define_constraint, process_define_register_constraint)
1049         (write_enum_constraint_num, write_lookup_constraint)
1050         (write_insn_constraint_len, write_regclass_for_constraint)
1051         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
1052         (write_insn_extra_memory_constraint)
1053         (write_insn_extra_address_constraint)
1054         (write_satisfies_constraint_fns): New.
1055         (write_tm_preds_h): If we have new-style constraint definitions,
1056         prototype the functions generated from them, and define the
1057         old constraint interface (still used by generic code) in terms of
1058         those functions.
1059         (write_insn_preds_c): If we have new-style constraint definitions,
1060         generate all relevant functions from those definitions.
1061         (main): Handle define_constraint etc.
1062         * genoutput.c (struct constraint_data, indep_constraints)
1063         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
1064         (mdep_constraint_len): New data structures and functions, defined
1065         #ifdef USE_MD_CONSTRAINTS.
1066         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
1067         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
1068         use new logic to validate operand constraints against constraint
1069         definitions.
1070         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
1071         defined.
1072         * defaults.h: If none of the old-style constraint macros are
1073         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
1074         old-style macros; and poison REG_CLASS_FROM_LETTER,
1075         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
1076         EXTRA_CONSTRAINT.
1077         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
1078         * doc/md.texi: Document new constraint-definition mechanism and the
1079         C interface it provides.  Remove references to old mechanism
1080         elsewhere in the document.
1081         (Machine Constraints): Use pathnames relative to gcc directory,
1082         i.e. config/ARCH/FILE.  Change i386 section to refer to
1083         config/i386/predicates.md; update that section to match docstrings.
1084         * doc/tm.texi: Move all documentation of the old constraint-
1085         definition macros to their own section, clearly mark as obsolete.
1086
1087         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
1088         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
1089         definitions.
1090         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
1091         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1092         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
1093         constraint strings.
1094         (splits and peepholes): Use satisfies_constraint_*.
1095         * config/i386/i386.c (memory_address_length)
1096         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
1097
1098 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1099
1100         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
1101         scalar operation to be put back into the loop.
1102
1103 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
1104
1105         PR other/26208
1106         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
1107         (extract_cie_info): Handle S flag in augmentation string.
1108         (execute_cfa_program): If context->signal_frame, execute also
1109         fs->pc == context->ra instructions.
1110         (uw_frame_state_for): If context->signal_frame, don't subtract one
1111         from context->ra to find FDE.
1112         (uw_update_context_1): Set context->signal_frame to
1113         fs->signal_frame.
1114         (_Unwind_GetIPInfo): New function.
1115         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
1116         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
1117         of _Unwind_GetIP.
1118         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
1119         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
1120         * unwind-compat.c (_Unwind_GetIPInfo): New function.
1121         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
1122         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
1123         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
1124         * config/i386/linux-unwind.h (x86_fallback_frame_state,
1125         x86_64_fallback_frame_state): Set fs->signal_frame.
1126         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
1127         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
1128         (frob_update_context): Likewise.  Workaround missing S flag in
1129         Linux 2.6.12 - 2.6.16 kernel vDSOs.
1130         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
1131         Remove the psw_addr + 1 hack.
1132
1133 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1134
1135         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
1136         with aggregates here.
1137         (find_func_aliases): Remove code for &<aggregate> from here.
1138
1139 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1140
1141         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
1142         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
1143         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
1144         as (X & C) ne/eq 0.
1145
1146 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1147
1148         PR middle-end/19983
1149         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1150
1151 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1152
1153         * opts.c (decode_options): Do not handle flag_strength_reduce.
1154         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1155         and OPT_fstrength_reduce.
1156         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1157         flag_prefetch_loop_arrays for being nonzero.
1158         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1159         no-ops.
1160         (fprefetch-loop-arrays-rtl): Removed.
1161         (flag_prefetch_loop_arrays): Do not specify the value.
1162
1163         * doc/passes.texi: Update documentation of loop optimizer
1164         passes.
1165         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1166         -frerun-loop-opt): Remove.
1167
1168 2006-02-26  Richard Guenther  <rguenther@suse.de>
1169
1170         PR tree-optimization/26421
1171         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1172         in function calls that are ADDR_EXPRs as using the whole structure.
1173
1174 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1175
1176         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1177         * tree-pass.h (pass_loop_optimize): Remove.
1178         * passes.c (pass_loop_optimize): Never run it.
1179         * toplev.c (backend_init): Don't call init_loop.
1180         * opts.c (flag_loop_optimize_set): Remove.
1181         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1182         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1183         the old RTL loop optimizer when profiling enabled.
1184         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1185         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1186         pre-headers for the sake of the old RTL loop optimizer.
1187         * Makefile.in: Remove all references to loop.o.
1188
1189         * doc/invoke.texi: Remove all references to -floop-optimize
1190         and -frerun-loop-opt.
1191
1192 2006-02-26  Zack Weinberg  <zackw@panix.com>
1193
1194         * doc/md.texi (Machine Constraints): Refer to all files with paths
1195         relative to gcc directory (i.e. config/CPU/file).  Add missing
1196         @table @code ... @end table to M32C subsection.
1197
1198 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1199
1200         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1201         (X & 1) == 0.
1202         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1203
1204 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1205             James A. Morrison  <phython@gcc.gnu.org>
1206
1207         PR middle-end/21137
1208         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1209         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1210         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1211         signedness of the shift operation.
1212
1213 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1214
1215         PR tree-optimization/26359
1216         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1217
1218 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1219
1220         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1221         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1222         as X == 0, and some symmetry related transformations.
1223         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1224
1225 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1226
1227         PR middle-end/23673
1228         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1229         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1230         symmetry related transformations.  Fold (X^C1) == C2 as
1231         X == (C1^C2).
1232
1233 2006-02-25  Juergen Weigert  <jw@suse.de>
1234         Richard Guenther  <rguenther@suse.de>
1235
1236         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1237
1238 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1239
1240         * combine.c (gen_lowpart_or_truncate): Call
1241         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1242
1243 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1244
1245         * doc/invoke.texi: Move -fopenmp description to "Options for
1246         Code Generation".
1247         Remove reference to -lgomp.
1248
1249 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1250
1251         * doc/install.texi: Require GNU tar version 1.14.
1252
1253 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1254
1255         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1256         * doc/invoke.texi (C++ Dialect Options): Document
1257         -fno-use-cxa-get-exception-ptr.
1258         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1259         * configure: Regenerate.
1260         * c.opt (fuse-cxa-get-exception-ptr): New.
1261         * c-opts.c (c_common_handle_option): Handle
1262         OPT_fuse_cxa_get_exception_ptr.
1263         * c-common.c (flag_use_cxa_atexit): Update documentation.
1264         (flag_use_cxa_get_exception_ptr): New.
1265         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1266         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1267         documentation.
1268         (C_COMMON_OVERRIDE_OPTIONS): New.
1269
1270 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1271
1272         PR middle-end/24952
1273         * combine.c (try_combine): Explicitly check whether GET_CODE is
1274         a SET or a CLOBBER, instead on checking that it isn't a USE.
1275
1276 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1277
1278         * fold-const.c (fold_comparison): New subroutine of fold_binary
1279         containing transformations common to both the equality and
1280         ordering relational operators, factored out of fold_binary.
1281         (fold_binary): Separate out the equality operators (EQ_EXPR
1282         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1283         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1284         transformations common to both.
1285         (fold_div_compare): Fix latent bugs in the previously unreachable
1286         LT_EXPR and GE_EXPR cases.
1287
1288 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1289
1290         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1291         decl libname for clog to __clog on AIX.
1292
1293         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1294
1295 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1296
1297         PR target/26453
1298         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1299         output traceback table for thunks.  Localise rs6000_stack_info call.
1300
1301 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1302             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1303
1304         * gthr-posix.h (__gthrw): Fix typo in comment.
1305
1306 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1307
1308         * doc/cpp.texi (Character sets): Document that we do support
1309         input files to be in any character set.
1310
1311 2006-02-23  Jeff Law  <law@redhat.com>
1312
1313         * tree.h (PHI_ARG_NONZERO): Remove.
1314         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1315         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1316         node to the new node.
1317
1318         PR tree-optimization/26425
1319         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1320         min/max, then assume its varying.
1321
1322 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1323
1324         PR rtl-optimization/26316
1325         * rtlanal.c (enum may_trap_p_flags): New.
1326         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1327         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1328         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1329         (may_trap_after_code_motion_p): New function.
1330         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1331         (find_invariant_insn): Use may_trap_after_code_motion_p.
1332         * rtl.h (may_trap_after_code_motion_p): Declare.
1333
1334 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1335
1336         * emit-rtl.c (immed_double_const): Cleanup.
1337
1338 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1339
1340         Fix PR tree-optimization/26376
1341         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1342         remove assert.
1343
1344 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1345
1346         PR middle-end/26412
1347         * gimplify.c (omp_add_variable): Guard variable size decl test with
1348         DECL_SIZE (decl) check.
1349
1350 2006-02-23  Richard Guenther  <rguenther@suse.de>
1351
1352         PR middle-end/26439
1353         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1354         like aggregate types.
1355
1356 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1357
1358         * configure.ac: Add --with{,out}-long-double-128 configure option.
1359         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1360         * configure: Rebuilt.
1361         * config.in: Rebuilt.
1362         * doc/install.texi (Options specification): Document
1363         --with-long-double-128.
1364
1365         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1366         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1367         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1368         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1369
1370 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1371
1372         * config/s390/s390.c (override_options): Handle
1373         TARGET_DEFAULT_LONG_DOUBLE_128.
1374
1375         * config/alpha/alpha.c (override_options): Handle
1376         TARGET_DEFAULT_LONG_DOUBLE_128.
1377
1378         * config/sparc/sparc.c (sparc_override_options): Handle
1379         TARGET_DEFAULT_LONG_DOUBLE_128.
1380
1381 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1382
1383         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1384         (real-install-headers-tar, real-install-headers-cpio)
1385         (real-install-headers-cp): New targets.
1386
1387 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1388
1389         * tree.h (variable_section): Delete.
1390         * varasm.c (variable_section): Delete.
1391
1392 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1393
1394         * install.texi: Add notes on install.texi2html.
1395         (Building in parallel): Do not use footnotes.
1396
1397 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1398
1399         PR libgomp/26234
1400         * doc/install.texi (Configuration): Document --disable-libgomp.
1401
1402 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1403
1404         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1405
1406 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1407
1408         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1409         (vec_extractv2df_0_sse): New.
1410
1411 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1412
1413         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1414         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1415         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1416         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1417         to the result of the expression.
1418         (def_cfa_1): Adjust.
1419         (frame_pointer_cfa_offset): Rename to...
1420         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1421         (convert_cfa_to_loc_list): Rename to...
1422         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1423         Pass it on to build_cfa_loc.
1424         (compute_frame_pointer_to_cfa_displacement): Rename to...
1425         (compute_frame_pointer_to_fb_displacement): ... this.  New
1426         offset parameter.  Use it in computation.
1427         (gen_subprogram_die): Compute cfa_fb_offset with the new
1428         macro, and use it to compute the fb loc list and the
1429         displacement.
1430
1431 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1432
1433         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1434         replaced with register_operand.
1435         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1436         non-DREG is expensive.
1437         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1438         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1439         involving memory.
1440
1441 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1442
1443         * doc/install.texi2html: Use set -e.
1444
1445 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1446
1447         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1448         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1449         * doc/invoke.texi (-fshared-data): Delete.
1450         * common.opt (fshared-data): Delete.
1451         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1452         (assemble_static_space): Remove #if 0 code.
1453         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1454         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1455         * config/cris/cris.h: Remove FIXME.
1456
1457 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1458
1459         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1460         hooks.
1461
1462 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1463
1464         PR middle-end/26379
1465         * combine.c (simplify_shift_const_1): Disable nested shifts
1466         optimization for vector shifts.
1467
1468 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1469
1470         PR tree-optimization/26361
1471         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1472         of unsigned integer types.
1473
1474 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1475
1476         * tree-chrec.c (eq_evolutions_p): New.
1477         * tree-chrec.h (eq_evolutions_p): Declared.
1478         * tree-data-ref.c: Fix formatting.
1479         (datadep_stats, dependence_stats): New.
1480         (gcd): Moved...
1481         (print_direction_vector): New.
1482         (dump_data_dependence_relation): Use print_direction_vector.
1483         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1484         (compute_subscript_distance): Static.
1485         (initialize_data_dependence_relation): Static.  Get the number
1486         of loops surrounding the references from the callers, and initialize
1487         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1488         base_object_differ_p analyzers.
1489         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1490         compute_overlap_steps_for_affine_1_2,
1491         analyze_subscript_affine_affine): Count the classified dependences.
1492         Print a message when a test failed.
1493         (can_use_analyze_subscript_affine_affine): New.
1494         (analyze_siv_subscript): Compute the data dependences on symbolic
1495         scevs that verify can_use_analyze_subscript_affine_affine.
1496         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1497         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1498         Handle symbolic scevs.
1499         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1500         analyzed.
1501         (subscript_dependence_tester): Moved...
1502         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1503         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1504         DDR_SIZE_VECT instead of getting it in parameter.
1505         (subscript_dependence_tester): ... here.  Take as a parameter
1506         loop_nest_depth.  Call build_classic_dist_vector and
1507         build_classic_dir_vector.
1508         (compute_affine_dependence): Update subscript_dependence_tester
1509         parameters.  Update datadep_stats counters.  Call
1510         compute_subscript_distance.
1511         (compute_self_dependence): Save the dist and dir vectors.  Call
1512         compute_subscript_distance.
1513         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1514         (compute_all_dependences): Reorder parameters as they were before
1515         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1516         compute_subscript_distance.  Update the use of
1517         compute_affine_dependence and initialize_data_dependence_relation.
1518         (find_data_references_in_loop): Handle COMPONENT_REF.
1519         (compute_data_dependences_for_loop): Initialize dependence_stats.
1520         Don't call build_classic_dist_vector and build_classic_dir_vector.
1521         Update the parameters of initialize_data_dependence_relation and
1522         compute_all_dependences.  Print the statistics from datadep_stats.
1523         (analyze_all_data_dependences): Static.  Not used until the pass for
1524         checking the data dependences is contributed.
1525         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1526         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1527         (initialize_data_dependence_relation, compute_affine_dependence,
1528         analyze_all_data_dependences, compute_subscript_distance): Removed.
1529         (print_direction_vector): New.
1530         * lambda.h (gcd): ... here.
1531         (lambda_vector_gcd): Moved here from gcd_vector.
1532         * lambda-code.c (gcd, gcd_vector): Removed.
1533         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1534         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1535
1536 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1537
1538         * ipa-type-escape.c: Tidy some comments and white space.
1539         * tree-ssa-operands.c: Likewise.
1540
1541 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1542
1543         PR tree-opt/25879
1544         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1545         (dump_decl_name): Do not walk the decl tree chains.
1546         * tree-pass.h (TDF_CHAIN): Remove.
1547
1548 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1549
1550         * Makefile.in (C): Remove
1551         (PROTO): Remove
1552         (.PHONY): Remove C and PROTO
1553
1554 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1555
1556         PR middle-end/26236
1557         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1558         deprecated CHAR_TYPE tree code.
1559
1560 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1561
1562         * configure.ac (target_list): Add install-info, dvi, html.
1563         * configure: Regenerate.
1564
1565         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1566         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1567         treelang/Make-lang.in: Do not use double-colon rules.
1568
1569 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1570
1571         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1572         (TMT_USED_ALONE): New macro.
1573         * tree-pass.h (PROP_tmt_usage): New property.
1574         (TODO_update_tmt_usage): New todo.
1575         * tree-ssa-alias.c (updating_used_alone): New variable.
1576         (recalculate_used_alone): New function.
1577         (compute_may_aliases): Set updating_used_alone, call
1578         recalculate_used_alone.
1579         * tree-sra.c (pass_sra): Note that this pass destroys
1580         PROP_tmt_usage, and add TODO_update_tmt_usage.
1581         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1582         * tree-flow.h (updating_used_alone): Prototype.
1583         (recalculate_used_alone): Ditto.
1584         * passes.c (execute_todo): Add code to set updating_used_alone,
1585         and call recalculate.
1586         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1587         for clobber if used alone, and add assert to verify used_alone
1588         status.
1589
1590 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1591
1592         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1593         for non tls symbols added.
1594         (legitimize_address): Do nothing for PLUS expressions if one of the
1595         addends is a tls symbol reference.
1596
1597 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1598
1599         PR bootstrap/25476
1600
1601         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1602
1603         * Makefile.in (BOOTSTRAPPING): New.
1604         (quickstrap): New definition if BOOTSTRAPPING=yes.
1605
1606         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1607         * configure.ac: Substitute all_selected_languages with the languages
1608         that were configured.  For all the other variables except
1609         lang_specs_files, include all the languages in the tree.
1610         * configure: Regenerate.
1611
1612         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1613         if there is one.  Run the commands to run fixincludes in the same
1614         subshell.
1615
1616         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1617         * doc/install.texi: Document exact conventions for searching target tools.
1618         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1619         something more about building an Ada cross-compiler.  Don't list GNU Make
1620         requirements which affect all platforms.
1621
1622 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1623
1624         PR middle-end/19543
1625         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1626         only equivalent if the have both the same mode and precision.
1627
1628 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1629
1630         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1631
1632 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1633             Steven Bosscher  <stevenb.gcc@gmail.com>
1634
1635         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1636         constant pool references to identify stack mode constants.
1637         * rtlanal.c (constant_pool_constant_p): New predicate to check
1638         whether operand is a floating point constant in the pool.
1639         * rtl.h (constant_pool_constant_p): Prototype here.
1640         * loop.c (scan_loop): Avoid hoisting constants from the constant
1641         pool on STACK_REGS targets.
1642         (load_mems): Likewise.
1643         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1644         loads into x87 registers expensive in terms of register pressure.
1645
1646 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1647
1648         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1649         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1650
1651 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1652
1653         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1654         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1655
1656 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1657
1658         * doc/invoke.texi: Document -fipa-pta.
1659         * common.opt: Add ipa-pta option.
1660         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1661         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1662         (do_ds_constraint): Ditto.
1663         (get_constraint_for): Only add to referenced_vars if
1664         referenced_vars exists.
1665         (insert_into_field_list): Rewrite to do this unsorted.
1666         (insert_into_field_list_sorted): Rename old insert_into_field_list
1667         to this.
1668         (create_function_info_for): Use insert_into_field_list_sorted.
1669         (create_variable_info_for): Rewrite so it uses unsorted version,
1670         since the field list is sorted.
1671         (intra_create_variable_infos): Only add to referenced_vars if
1672         referenced_vars exists.
1673         (ipa_pta_execute): Init heapvars, and delete when done.
1674         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1675
1676 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1677
1678         * doc/install.texi: Add missing `@samp'.
1679
1680 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1681
1682         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1683         Use the arguments.
1684
1685 2006-02-18  Mark Wielaard  <mark@klomp.org>
1686
1687         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1688         who added new 4.1 features, bug fixes and integration support.
1689
1690 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1691
1692         PR target/26350
1693         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1694         MEM for ABI_V4 pic.
1695
1696 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1697
1698         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1699         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1700         (copy_insn_1): Likewise.  Don't copy each field individually.
1701         Reindent.
1702         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1703         of RTX_SIZE.
1704         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1705         * rtl.c (rtx_size): Rename variable to...
1706         (rtx_code_size): ...this.
1707         (rtx_size): New function.
1708         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1709         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1710         Reindent.
1711         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1712         * rtl.h (rtx_code_size): New variable.
1713         (rtx_size): Change from a variable to a function.
1714         (RTX_SIZE): Rename to...
1715         (RTX_CODE_SIZE): ...this.
1716
1717         PR target/9703
1718         PR tree-optimization/17106
1719         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1720         (Anchored Addresses): New section.
1721         * doc/invoke.texi (-fsection-anchors): Document.
1722         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1723         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1724         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1725         * hooks.c (hook_bool_mode_rtx_false): New function.
1726         * hooks.h (hook_bool_mode_rtx_false): Declare.
1727         * gengtype.c (create_optional_field): New function.
1728         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1729         SYMBOL_REF_IN_BLOCK_P is true.
1730         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1731         (min_anchor_offset, max_anchor_offset): Likewise.
1732         (use_anchors_for_symbol_p): New hook.
1733         * toplev.c (compile_file): Call output_object_blocks.
1734         (target_supports_section_anchors_p): New function.
1735         (process_options): Check that -fsection-anchors is only used on
1736         targets that support it and when -funit-at-a-time is in effect.
1737         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1738         if the decl doesn't have one.
1739         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1740         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1741         of force_const_mem through use_anchored_address.
1742         (expand_expr_constant): New function.
1743         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1744         calling expand_expr for INDIRECT_REF.
1745         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1746         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1747         * expr.h (use_anchored_address): Declare.
1748         * loop-unroll.c: Don't declare rtx vectors here.
1749         * explow.c: Include output.h.
1750         (validize_mem): Call use_anchored_address.
1751         (use_anchored_address): New function.
1752         * common.opt (-fsection-anchors): New switch.
1753         * varasm.c (object_block_htab, anchor_labelno): New variables.
1754         (hash_section, object_block_entry_eq, object_block_entry_hash)
1755         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1756         (use_blocks_for_decl_p, change_symbol_section): New functions.
1757         (get_variable_section): New function, split out from assemble_variable.
1758         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1759         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1760         symbol has already been created.
1761         (assemble_variable_contents): New function, split out from...
1762         (assemble_variable): ...here.  Don't output any code for
1763         block symbols; just pass them to place_block_symbol.
1764         Use get_variable_section and assemble_variable_contents.
1765         (get_constant_alignment, get_constant_section, get_constant_size): New
1766         functions, split from output_constant_def_contents.
1767         (build_constant_desc): Create a block symbol if use_object_blocks_p
1768         says so.  Or into SYMBOL_REF_FLAGS.
1769         (assemble_constant_contents): New function, split from...
1770         (output_constant_def_contents): ...here.  Don't output any code
1771         for block symbols; just pass them to place_section_symbol.
1772         Use get_constant_section and get_constant_alignment.
1773         (force_const_mem): Create a block symbol if use_object_blocks_p and
1774         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1775         (output_constant_pool_1): Add an explicit alignment argument.
1776         Don't switch sections here.
1777         (output_constant_pool): Adjust call to output_constant_pool_1.
1778         Switch sections here instead.  Don't output anything for block symbols;
1779         just pass them to place_block_symbol.
1780         (init_varasm_once): Initialize object_block_htab.
1781         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1782         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1783         (place_block_symbol, get_section_anchor, output_object_block)
1784         (output_object_block_htab, output_object_blocks): New functions.
1785         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1786         (TARGET_ASM_OUT): Include it.
1787         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1788         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1789         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1790         (TARGET_INITIALIZER): Include them.
1791         * rtl.c (rtl_check_failed_block_symbol): New function.
1792         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1793         (block_symbol, object_block): New structures.
1794         (rtx_def): Add a block_symbol field to the union.
1795         (BLOCK_SYMBOL_CHECK): New macro.
1796         (rtl_check_failed_block_symbol): Declare.
1797         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1798         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1799         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1800         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1801         * output.h (output_section_symbols): Declare.
1802         (object_block): Name structure.
1803         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1804         (default_use_anchors_for_symbol_p): Declare.
1805         * Makefile.in (RTL_BASE_H): Add vec.h.
1806         (explow.o): Depend on output.h.
1807         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1808         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1809         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1810         (rs6000_use_blocks_for_constant_p): New function.
1811
1812 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1813
1814         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1815
1816 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1817
1818         PR tree-opt/25680
1819         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1820         IMAGPART_EXPR.
1821
1822 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1823
1824         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1825         is_aliased.
1826         Update all users.
1827
1828 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1829
1830         PR middle-end/26334
1831         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1832         instead of DECL_REGISTER.
1833
1834 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1835
1836         PR ada/13408
1837         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1838
1839 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1840
1841         PR target/24837
1842         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1843         * opth-gen.awk: Handle Var and InverseMask together.
1844         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1845         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1846         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1847         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1848         used together.
1849         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1850         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1851         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1852         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1853         LINUX_DYNAMIC_LINKER): Define.
1854         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1855         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1856         TARGET_GLIBC.
1857         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1858         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1859         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1860         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1861         (TARGET_C99_FUNCTIONS): Don't define.
1862         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1863         GLIBC_DYNAMIC_LINKER.
1864         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1865         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1866         GLIBC_DYNAMIC_LINKER64): Define.
1867         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1868         LINUX_DYNAMIC_LINKER64.
1869         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1870         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1871         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1872         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1873         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1874         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1875         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1876         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1877         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1878         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1879         and LINUX_DYNAMIC_LINKER32.
1880         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1881         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1882         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1883         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1884         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1885         TARGET_GLIBC.
1886         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1887         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1888         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1889         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1890         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1891         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1892         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1893         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1894         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1895         LINUX_DYNAMIC_LINKER): Define.
1896         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1897         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1898         GLIBC_DYNAMIC_LINKER64): Define.
1899         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1900         LINUX_DYNAMIC_LINKER64.
1901         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1902         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1903         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1904         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1905         LINUX_DYNAMIC_LINKER): Define.
1906         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1907         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1908         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1909         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1910         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1911         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1912         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1913         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1914         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1915         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1916         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1917         * doc/invoke.texi (-muclibc): Remove caveat about supported
1918         targets.
1919
1920 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1921
1922         * doc/cpp.texi (__TIMESTAMP__): Document.
1923
1924 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1925
1926         PR middle-end/25600
1927         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1928         C is one less than the width of X (and related transformations).
1929         * simplify-rtx.c (simplify_unary_operation_1): Transform
1930         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1931         depending on STORE_FLAG_VALUE, were C is one less then the
1932         width of X.
1933
1934 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1935
1936         Fix PR tree-optimization/26341
1937         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1938         about NAME_MEMORY_TAG's.
1939
1940 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1941
1942         PR target/26255
1943         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1944         with hardware float support, and software float support.  Add fcpy
1945         alternative to hardware patterns.  Add alternatives to copy between
1946         general and floating-point registers to the 32-bit pattern.
1947         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1948         secondary reload to load a QI or HI mode constant into a floating
1949         point register.
1950         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1951         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1952
1953 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1954
1955         PR target/26272
1956         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1957         pc to the pattern.
1958         (load_macho_picbase_di): Likewise.
1959
1960 2006-02-16  Jeff Law  <law@redhat.com>
1961
1962         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1963         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1964         (ssa_name_nonzero_p): Likewise.
1965         (get_value_range): Return NULL if VRP is not running.
1966         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1967         VRP routines do not discover a range.
1968         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1969         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1970         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1971         (tree_expr_nonnegative_p): Similarly.
1972         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1973         (restore_nonzero_vars_to_original_value): Remove.
1974         (unsafe_associative_fp_binop): Remove.
1975         (tree_ssa_dominator_optimize): Remove initialization and
1976         finalization of nonzero_vars and nonzero_vars_stack.
1977         (dom_opt_initialize_block): No longer push marker on
1978         nonzero_vars_stack.
1979         (dom_opt_finalize_block): No longer call
1980         restore_nonzero_vars_to_original_value.
1981         (record_equivalences_from_phis): No longer look for
1982         nonzero PHI arguments.
1983         (cprop_into_successor_phis): No longer propagate nonzero
1984         property into PHI arguments.  Lose unused argument.  Caller
1985         updated.
1986         (record_equivalences_from_stmt): No longer record nonzero
1987         values for SSA_NAMEs.
1988         (lookup_avail_expr): No longer use nonzero_vars.
1989
1990         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1991         for sizetype when sizetype is unsigned.
1992
1993 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1994
1995         PR rtl-optimization/25603
1996         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1997         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1998         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1999         with new meaning of SETS.
2000
2001 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
2002
2003         PR target/20353
2004         PR target/24578
2005         PR target/24837
2006         * config/linux.opt: New file.
2007         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
2008         LINUX_DYNAMIC_LINKER): Define.
2009         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
2010         * config.gcc (*-*-linux*): Define extra_options.
2011         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
2012         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
2013         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
2014         GLIBC_DYNAMIC_LINKER.
2015         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
2016         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2017         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2018         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2019         * doc/invoke.texi (GNU/Linux Options): New section.
2020
2021 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
2022
2023         * config/sparc/sparc.md (setjmp): Rewrite.
2024         (setjmp_32): Delete.
2025         (setjmp_64): Likewise.
2026
2027 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
2028
2029         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
2030          previous change.
2031
2032 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2033
2034         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
2035         read-write uses.
2036
2037 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2038
2039         PR rtl-optimization/26296
2040         * Makefile.in (loop-invariant.c): Add except.h dependency.
2041         * loop-invariant.c: Include except.h.
2042         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
2043
2044 2005-02-16  Paul Brook  <paul@codesourcery.com>
2045
2046         * reload1.c (emit_reload_insns): Invalidate dead input registers used
2047         for reloads.
2048
2049 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
2050
2051         PR rtl-optimization/25636
2052         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
2053         when deciding whether an insn is an initializing insn.
2054
2055 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
2056
2057         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
2058         (tree_code_size): Ditto.
2059         * tree.h (struct tree_memory_tag): Remove parent_var.
2060         (struct tree_struct_field_tag): New.
2061         (SFT_OFFSET): New.
2062         (SFT_SIZE): New.
2063         (union tree_node): Add sft member.
2064         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
2065         specially here.
2066         (create_sft): Add size and offset argument, set SFT_OFFSET and
2067         SFT_SIZE.
2068         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
2069         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
2070         * tree-flow-inline.h (get_subvar_at): Update for
2071         SFT_OFFSET/SFT_SIZE.
2072         (var_can_have_subvars): Ditto.
2073         (overlap_subvar): Ditto.
2074         * print-tree.c (print_node): Print out interesting things for
2075         SFT's.
2076         * tree-flow.h (struct subvar): Remove offset and size members.
2077         * tree-ssa-operands.c (get_expr_operands): Update for
2078         get_indirect_ref_operands changes.
2079         (get_indirect_ref_operands): Call add_virtual_operand instead of
2080         add_stmt_operand.  Only recurse on base var if requested.
2081         (access_can_touch_variable): New function.
2082         (add_stmt_operand): Split virtual operand handling into ...
2083         (add_virtual_operand): Here.  Add offset, size, and for_clobber
2084         arguments.  Prune alias sets.
2085         (add_call_clobber_ops): Call add_virtual_operand.
2086
2087 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
2088
2089         PR middle-end/26300
2090         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
2091
2092         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
2093         than TREE_CODE as index into omp_clause_num_ops array.
2094
2095 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
2096
2097         PR rtl-optimization/26184
2098         * modulo-sched.c (generate_reg_moves): Free bitmap vector
2099         uses_of_defs.
2100         * modulo-sched.c (sms_schedule): Free g_arr pointer.
2101         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
2102         must_precede, must_follow and tobe_scheduled.
2103
2104         PR other/26147
2105         * opts.c (common_handle_option): Free new_option pointer.
2106         * df-core.c (df_analyze): Free postorder pointer.
2107
2108 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
2109
2110         * Makefile.in: Fix the examples about the use of stamps
2111
2112 2006-02-15  Michael Matz  <matz@suse.de>
2113
2114         PR middle-end/22275
2115
2116         * stor-layout.c (layout_decl): Zero-width bitfields aren't
2117         influenced by maximum_field_alignment or DECL_PACKED.
2118         (update_alignment_for_field): Ditto.
2119         (place_field): Ditto.
2120         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
2121         this behaviour.
2122
2123 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
2124
2125         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
2126         (debug_flow_info): Pass it.
2127         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
2128         * bb-reorder.c (reorder_basic_blocks): Likewise.
2129         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
2130         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
2131         * flow.c (life_analysis, recompute_reg_usage): Likewise.
2132         * gcse.c (gcse_main, bypass_jumps): Likewise.
2133         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
2134         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
2135         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
2136         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
2137         * rtl.h (dump_flow_info): Adjust prototype.
2138         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
2139         * var-tracking.c (variable_tracking_main): Likewise.
2140         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
2141         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
2142         options.
2143
2144 2006-02-15  Marcin Dalecki <martin@dalecki.de>
2145
2146         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
2147         construction.
2148
2149 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2150
2151         PR tree-optimization/26209
2152         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2153         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2154         eh edges.
2155         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2156
2157 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2158
2159         PR middle-end/23670
2160         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2161         (X,Y) and the corresponding symmetry related transformations.
2162         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2163         (X,Y) and its symmetry related transformations.
2164
2165 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2166
2167         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2168         and GEU.
2169
2170 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2171
2172         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2173
2174 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2175
2176         PR bootstrap/26053
2177         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2178         support COMDAT group.
2179         * configure: Regenerate.
2180
2181 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2182
2183         PR middle-end/26279
2184         PR middle-end/26280
2185         PR middle-end/26283
2186         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2187
2188 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2189
2190         Fix PR tree-optimization/26260
2191
2192         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2193         param.
2194         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2195         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2196         * tree-ssa-structalias.c (create_variable_info_for): Use
2197         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2198
2199 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2200
2201         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2202         Document.
2203         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2204         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2205         of the ending condition.
2206         * tree-ssa-loop-manip.c: Include params.h.
2207         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2208         tree_unroll_loop): New functions.
2209         * tree-pass.h (pass_loop_prefetch): Declare.
2210         * loop.c (rest_of_handle_loop_optimize): Test for
2211         -fprefetch-loop-arrays-rtl.
2212         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2213         * timevar.def (TV_TREE_PREFETCH): New timevar.
2214         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2215         pass_loop_prefetch): New.
2216         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2217         (cleanup_tree_cfg_loop): Call scev_reset.
2218         * common.opt (fprefetch-loop-arrays-rtl): Add.
2219         * tree-ssa-loop-prefetch.c: New file.
2220         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2221         (new_temp_expr_table): Initialize expr_vars.
2222         (free_temp_expr_table): Cleanup expr_vars.
2223         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2224         expressions from being merged into one.
2225         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2226         (struct tree_niter_desc): Add control, bound and cmp fields.
2227         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2228         Declare.
2229         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2230         (tree-cfgcleanup.o): Add SCEV_H dependency.
2231         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2232         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2233
2234 2006-02-14  Richard Guenther  <rguenther@suse.de>
2235
2236         PR tree-optimization/26258
2237         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2238         in PHI argument processing.
2239
2240 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2241
2242         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2243         new expression in the requested machine mode.
2244
2245 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2246
2247         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2248         directly, instead let do_compare_rtx_and_jump handle this for us.
2249         * expr.c (expand_expr_real_1): Likewise.
2250         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2251         before do_jump_by_parts_greater.
2252         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2253         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2254
2255 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2256
2257         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2258
2259 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2260
2261         PR rtl-optimization/26235
2262         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2263         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2264         format.
2265
2266 2006-02-13  Jeff Law  <law@redhat.com>
2267
2268         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2269         TRUTH_XOR_EPR.
2270
2271 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2272
2273         PR middle-end/26092
2274         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2275         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2276         first to verify it is still a builtin.
2277
2278 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2279
2280         * dwarf2out.c (base_type_die): Don't add AT_name here.
2281         (subrange_type_die): Don't add AT_name here.
2282         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2283
2284 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2285
2286         PR rtl-optimization/26247
2287         PR rtl-optimization/26248
2288         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2289
2290 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2291
2292         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2293         * config/fixtfdi.c: Likewise.
2294         * config/fixunstfdi.c: Likewise.
2295         * config/floatditf.c: Likewise.
2296
2297 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2298
2299         PR middle-end/24427
2300         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2301         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2302         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2303         (X&(C1&~C2))|C2.
2304         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2305
2306 2006-02-13  Josh Conner  <jconner@apple.com>
2307
2308         PR target/25376
2309         * varasm.c (function_section): Check for section name before
2310         calling select_section on targets that define
2311         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2312         unlikely_text_section instead of hot_function_section if
2313         first_function_block_is_cold.
2314
2315 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2316
2317         PR middle-end/25335
2318         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2319
2320 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2321
2322         PR rtl-optimization/26222
2323         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2324         after tree->rtl expansion.
2325         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2326         before passing it to emit_move_insn.
2327
2328 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2329
2330         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2331         default.
2332         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2333         Clarify documentation.
2334         * c-common.h (warn_write_strings): Remove.
2335         * c-common.c (warn_write_strings): Likewise.
2336         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2337         default for C++.
2338
2339 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2340
2341         PR middle-end/25724
2342         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2343         (do_jump_parts_zero_rtx): New function renamed from
2344         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2345         (do_jump_parts_equality_rtx): New function split out from
2346         do_jump_parts_equality.  Old implementation renamed as above.
2347         Call do_jump_parts_zero_rtx if either operand is zero.
2348         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2349         do all of the heavy lifting.
2350         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2351         calling either do_jump_by_parts_greater_rtx or
2352         do_jump_by_parts_equality_rtx.
2353         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2354         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2355         moved to do_compare_rtx_and_jump, call it directly.
2356         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2357         mode argument.  Call do_compare_rtx_and_jump.
2358         (emit_case_nodes): Update calls to do_jump_if_equal.
2359
2360 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2361
2362         PR rtl-optimization/26225
2363         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2364
2365 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2366
2367         PR rtl-optimization/26232
2368         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2369
2370 2006-02-11  Jason Merrill  <jason@redhat.com>
2371
2372         PR tree-opt/24365
2373         * tree-inline.c (declare_return_variable): Just don't use the
2374         modify target if it's a gimple complex reg and the return slot
2375         isn't.
2376
2377 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2378
2379         * doc/contrib.texi: Update my entry.
2380
2381 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2382
2383         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2384
2385 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2386
2387         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2388         expensive.
2389
2390 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2391
2392         * doc/invoke.texi (-floop-optimize2): Removed.
2393         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2394         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2395         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2396         * common.opt (floop-optimize2): Removed.
2397         (fmove-loop-invariants): Enabled by default.
2398
2399 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2400
2401         * tree-if-conv.c (combine_blocks): Free the result of
2402         get_loop_exit_edges.
2403
2404 2006-02-10  Jeff Law  <law@redhat.com>
2405
2406         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2407
2408         PR tree-optimization/26213
2409         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2410         loop trying to follow SSA_NAME_VALUE chains.
2411
2412 2006-02-10  Richard Guenther  <rguenther@suse.de>
2413
2414         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2415         deal with structures that end in implicitly variable sized arrays.
2416
2417 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2418
2419         PR rtl-optimization/24762
2420         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2421         eh edges.
2422
2423 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2424
2425         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2426         (struct ivopts_data): Add regs_used field.
2427         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2428         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2429         instead of loop_data->regs_used;
2430         (free_loop_data): Do not free aux fields for loops.
2431         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2432         and tree_ssa_iv_optimize_finalize.
2433
2434 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2435
2436         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2437
2438 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2439
2440         PR target/26141
2441         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2442         computing the effective result type.
2443
2444 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2445
2446         PR inline-asm/16194
2447         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2448         (tree_overlaps_hard_reg_set): Declare.
2449         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2450         type and signature to match function type expected by walk_tree.
2451         (tree_overlaps_hard_reg_set): New function.
2452         (decl_conflicts_with_clobbers_p): Rename to:
2453         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2454         Use tree_overlaps_hard_reg_set.  Changed caller.
2455         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2456         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2457         * cris.c (cris_md_asm_clobbers): Likewise.
2458
2459 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2460
2461         * reload1.c (emit_input_reload_insns): Delete code that tries to
2462         inherit using find_equiv_reg.
2463
2464 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2465
2466         * c-common.h (flag_const_strings): Don't declare.
2467         * c-common.c (flag_const_strings): Remove.
2468         * c.opt (fconst_strings): Remove.
2469         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2470         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2471         (c_common_init_options): Don't set flag_const_strings.
2472         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2473
2474 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2475
2476         * arm.md (tlobits_cbranch): New pattern.
2477         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2478         testing a single bit.
2479
2480 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2481
2482         PR tree-opt/26179
2483         * tree-ssa-pre.c (create_component_ref_by_pieces):
2484         Handle RETURN_DECL like VAR_DECL.
2485
2486 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2487
2488         PR middle-end/26134
2489         * fold-const.c (fold_indirect_ref_1): Fold
2490         "*(foo *)&complexfoo" to "__real__ complexfoo"
2491         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2492
2493 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2494
2495         * tree-flow-inline.h (var_can_have_subvars):
2496         Volatile variables should not have subvariables.
2497
2498 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2499
2500         PR 26180
2501         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2502         multiplying unsigned values.
2503         Tidy comments.
2504
2505 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2506
2507         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2508
2509 2006-02-08  Jason Merrill  <jason@redhat.com>
2510
2511         PR c++/25979
2512         * tree.def: Elaborate on difference from MODIFY_EXPR.
2513         * doc/c-tree.texi (INIT_EXPR): Likewise.
2514         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2515         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2516         (gimplify_target_expr): Likewise.
2517         (gimplify_cond_expr): Remove target handling.
2518         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2519         (gimplify_expr): Clobber it here.
2520         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2521         Do return slot optimization if we have an INIT_EXPR.
2522
2523         PR tree-opt/24365
2524         * tree-inline.c (declare_return_variable): Also clear
2525         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2526
2527         PR c++/16405
2528         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2529
2530         PR middle-end/22439
2531         * gimplify.c (gimplify_one_sizepos): Fix typo.
2532
2533 2006-02-08  Jeff Law  <law@redhat.com>
2534
2535         PR tree-optimization/21417
2536         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2537         across a backedge if the control statement at the end of the
2538         block is data dependent on other statements in the same block.
2539         (record_temporary_equivalences_from_stmts): Remove over-conservative
2540         test for threading across backedges.
2541
2542         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2543         control statement, handle all three special cases in the same
2544         manner as they all have the same desired solution.  No longer
2545         special case edge flag updating when the post dominator is
2546         the exit block.
2547
2548 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2549
2550         * tree.def (CHAR_TYPE): Remove.
2551         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2552         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2553         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2554         (gen_string_type_die): Delete unreachable function.
2555
2556         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2557         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2558         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2559         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2560         * builtins.c (type_to_class): Likewise.
2561         * fold-const.c (fold_convert, build_range_check,
2562         merge_ranges): Likewise.
2563         * expr.c (count_type_elements): Likewise.
2564         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2565         * stor-layout.c (layout_type): Likewise.
2566         * ipa-type-escape.c (type_to_consider): Likewise.
2567         * gimplify.c (omp_firstprivatize_type_sizes,
2568         gimplify_type_sizes): Likewise.
2569         * explow.c (promote_mode): Likewise.
2570         * tree-sra.c (is_sra_scalar_type): Likewise.
2571         * varasm.c (output_constant): Likewise.
2572         * tree-inline.c (remap_type_1): Likewise.
2573         * convert.c (convert_to_pointer, convert_to_real,
2574         convert_to_integer, convert_to_complex): Likewise.
2575
2576 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2577
2578         * df-scan.c (df_def_record_1): A set destination may
2579         be a parallel regardless of mode.
2580
2581 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2582
2583         PR target/22209
2584         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2585         * config/mips/_tilib.c: Remove.
2586         * config/fixtfdi.c: New libgcc source file.
2587         * config/fixunstfdi.c: New source file.
2588         * config/floatditf.c: New source file.
2589         * config/floatunditf.c: New souce file.
2590         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2591         files above instead of config/mips/_tilib.c.
2592         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2593
2594 2006-02-08  Jeff Law  <law@redhat.com>
2595
2596         PR tree-optimization/26169
2597         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2598         threading jumps.
2599
2600 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2601
2602         * df.h (DF_REG_SIZE): Return the length of the initialized
2603         part of the array.
2604
2605 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2606
2607         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2608         __muldf3): Return a correctly signed zero.
2609
2610 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2611
2612         * passes.c (register_one_dump_file): Accept the current properties
2613         instead of pass number.  Adjust call to dump_register.  Remove
2614         duplicated code.
2615         (register_dump_files): Now a wrapper around...
2616         (register_dump_files_1): ... this one.  Do not modify the pass
2617         structure.
2618         (next_pass_1): Cosmetic fix.
2619         (execute_todo): Keep second parameter only.  Use curr_properties
2620         instead of fetching it from the pass structure.  Check and set
2621         last_verified.
2622         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2623         instead of fetching it from the pass structure.  Fix calls to
2624         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2625         after running the pass.  Reset last_verified.
2626         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2627         at the beginning.
2628         (FIRST_AUTO_NUMBERED_DUMP): New.
2629         (dump_register): Remove "num" parameter, assign it within the
2630         function.
2631         (get_dump_file_name): Modify template for dumps.
2632         * tree-dump.h (dump_register): Adjust prototype.
2633         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2634         (PROP_trees): Add PROP_gimple_lomp.
2635         (TODO_set_props): New.
2636         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2637         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2638         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2639
2640 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2641
2642         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2643         (sparc64-*-linux*): Likewise.
2644         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2645         * config/sparc/t-linux: New file.
2646         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2647         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2648         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2649         -m32 -mlong-double-128.
2650
2651         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2652         * config/alpha/t-linux: New file.
2653         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2654
2655         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2656         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2657         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2658         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2659         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2660         (CPP_ARCH32_SPEC): Remove.
2661
2662 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2663
2664         PR tree-optimization/26145
2665         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2666         bbs pointer.
2667
2668 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2669
2670         PR target/26109
2671         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2672         >= 240000 when generating code for SOM runtime.
2673         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2674         to $$dyncall when generating code for SOM runtime..
2675
2676 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2677
2678         PR c++/18150
2679         * doc/invoke.texi (-Wsequence-point): Update documentation
2680         that -Wsequence-point is implemented for C++ as well.
2681
2682 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2683
2684         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2685         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2686         (LIB_SPEC): Likewise.
2687         * doc/invoke.texi (SPARC options): Document -pthread.
2688
2689 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2690
2691         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2692         PIC addresses.
2693
2694 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2695
2696         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2697         Correct comment describing BOOLEAN_TYPE.
2698
2699 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2700
2701         * c.opt: C++ frontend supports -Wdiv-by-zero.
2702         * c-opts.c (c_common_handle_option): Remove dead case.
2703
2704 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2705
2706         * configure.ac (TLS assembler check): Do not enable TLS by
2707         default on SPARC/Solaris before version 10.
2708         * configure: Regenerate.
2709
2710 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2711
2712         * doc/invoke.texi (xl-compat): Document conversion and support
2713         routine names.
2714
2715 2006-02-07  Jeff Law  <law@redhat.com>
2716
2717         * tree-vrp.c (find_conditional_asserts): Update comments.
2718         (simplify_stmt_for_jump_threading): New.
2719         (identify_jump_threads, finalize_jump_threads): New.
2720         (vrp_finalize): Call identify_jump_threads.
2721         (execute_vrp): Call finalize_jump_threads.
2722         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2723         (vrp_element, vrp_data, vrp_element_p): Remove.
2724         (vrp_hash_elt, vrp_variables_stack): Remove.
2725         (vrp_hash, vrp_eq, record_range): Remove.
2726         (simplify_cond_and_lookup_avail_expr): Remove.
2727         (extract_range_from_cond): Remove.
2728         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2729         (simplify_stmt_for_jump_threading): New.
2730         (dom_thread_across_edge): New wrapper.
2731         (tree_ssa_dominator_optimize): No longer initialize or
2732         finalize any of the VRP datastructures.  Remove iteration
2733         step and simplify as a result of removal of iteration step.
2734         (pass_dominator): Perform a cfg cleanup after DOM.
2735         (dom_opt_finalize_block): Use the new common routines
2736         for threading jumps.  Simplify stack management slightly.
2737         No longer need to unwind VRP state.
2738         (record_equivalences_from_incoming_edge): No longer record
2739         VRP information.
2740         (eliminate_redundant_computations): No longer call
2741         simplify_cond_and_lookup_avail_expr.
2742         * tree-flow.h (potentially_threadable_block): Prototype.
2743         (thread_across_edge): Likewise.
2744         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2745         (tree-ssa-threadedge.o): Add dependencies.
2746         * tree-ssa-threadedge.c: New file.
2747         * passes.c (init_optimization_passes): Merge PHIs before
2748         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2749
2750 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2751
2752         * df-core.c (df_set_blocks): Do not dereference function pointers.
2753         (df_finish1): Likewise.
2754         (df_hybrid_search_forward): Likewise.
2755         (df_hybrid_search_backward): Likewise.
2756         (df_iterative_dataflow): Likewise.
2757         (df_analyze_problem): Likewise.
2758         (df_compact_blocks): Likewise.
2759         (df_dump): Likewise.
2760         * df-scan.c (df_rescan_blocks): Likewise.
2761         (df_record_entry_block_defs): Likewise.
2762
2763         * genconditions.c (write_conditions): Guard the definition of
2764         'insn_conditions' with the check on GCC version.
2765         (write_writer): Guard the traversal 'insn_conditions' with
2766         the check on GCC version.
2767
2768 2006-02-07  Richard Guenther  <rguenther@suse.de>
2769
2770         PR c++/26140
2771         Revert
2772         2006-01-30  Richard Guenther  <rguenther@suse.de>
2773         PR c++/23372
2774         * gimplify.c (gimplify_target_expr): Handle easy cases
2775         without creating a temporary.
2776
2777 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2778
2779         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2780         use of float in probability computations.  Use edge probabilities
2781         in place of statically computed probabilities.
2782         (min_spec_prob): New static variable.
2783         (schedule_insns): Initialize it.
2784         (GET_SRC_PROB): Removed.
2785         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2786
2787 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2788
2789         PR debug/24444
2790         * config/ia64/unwind-ia64.c: Revert last change.
2791         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2792         (INCOMING_FRAME_SP_OFFSET): Define.
2793
2794 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2795
2796         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2797
2798 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2799
2800         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2801         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2802         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2803         (ix86_return_in_memory): Handle TDmode.
2804         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2805         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2806
2807 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2808
2809         * reorg.c (dbr_schedule): Use dump_file instead of file.
2810
2811 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2812
2813         PR target/25917
2814         * config/ia64/predicates.md (extr_len_operand): New predicate.
2815         * config/ia64/ia64.md (extv): Tighten constraints.
2816         (extzv): Ditto.
2817         (*tbit_and_2): Ditto.
2818         (*tbit_and_3): Ditto.
2819         (*tbit_or_2): Ditto.
2820         (*tbit_or_3): Ditto.
2821         (*bit_zero): Ditto.
2822         (*bit_one): Ditto.
2823
2824 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2825
2826         PR target/23359
2827         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2828
2829 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2830
2831         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2832         loop_optimizer_init and loop_optimizer_finalize
2833         * tree-ssa-sink.c (execute_sink_code): Ditto.
2834         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2835         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2836         tree_ssa_loop_done): Ditto.
2837         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2838         * sched-ebb.c: Include output.h.
2839         (schedule_ebbs): Do not use dump argument.
2840         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2841         * loop.c (loop_dump_stream): Removed.
2842         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2843         argument.
2844         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2845         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2846         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2847         loop_iterations, strength_reduce, record_biv, record_giv,
2848         final_giv_value, check_final_value, check_ext_dependent_givs,
2849         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2850         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2851         dump_file instead of loop_dump_stream.
2852         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2853         argument dump_file.
2854         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2855         dump argument.
2856         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2857         * haifa-sched.c: Include output.h
2858         (schedule_insns, sched_init): Do not use dump argument.
2859         * mode-switching.c (optimize_mode_switching): Ditto.
2860         * modulo-sched.c (stats_file): Removed.
2861         (print_node_sched_params): Do not call argument dump_file.
2862         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2863         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2864         of stats_file.
2865         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2866         use dump argument.
2867         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2868         rtl_loop_init, rtl_loop_done): Ditto.
2869         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2870         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2871         Ditto.
2872         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2873         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2874         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2875         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2876         * emit-rtl.c (renumber_insns): Ditto.
2877         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2878         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2879         * regclass.c (regclass): Ditto.
2880         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2881         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2882         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2883         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2884         Ditto.
2885         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2886         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2887         to regclass.
2888         * gcse.c (gcse_file, debug_stderr): Removed.
2889         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2890         rest_of_handle_gcse): Do not use dump argument.
2891         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2892         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2893         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2894         compute_code_hoist_vbeinout, compute_code_hoist_data,
2895         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2896         compute_store_table, build_store_vectors, insert_insn_start_bb,
2897         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2898         store_motion): Use dump_file instead of gcse_file.
2899         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2900         * profile.c (profile_dump_file): Removed.
2901         (branch_prob): Use dump_file instead of profile_dump_file.
2902         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2903         dump_file.
2904         * tree-ssa-copy.c (dump_copy_of): Ditto.
2905         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2906         dump file to life_analysis.
2907         * bt-load.c (branch_target_load_optimize): Ditto.
2908         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2909         renumber_insns.
2910         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2911         regclass, dbr_schedule): Declaration changed.
2912         * sched-int.h (sched_init): Declaration changed.
2913         * tree-profile.c (tree_profile_dump_file): Removed.
2914         (tree_profile_hooks): Removed profile_dump_file hook.
2915         * rtl-profile (rtl_profile_dump_file): Removed.
2916         (rtl_profile_hooks): emoved profile_dump_file hook.
2917         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2918         changed.
2919         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2920         * tree-cfg.c (build_tree_cfg): Ditto.
2921         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2922         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2923         Declaration changed.
2924         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2925         life_analysis and schedule_insns.
2926         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2927         life_analysis.
2928         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2929         dbr_schedule.
2930         * config/mips/mips.c (mips_reorg): Ditto.
2931         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2932         schedule_ebbs.
2933
2934 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2935
2936         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2937         (s390_mangle_fundamental_type): New.
2938         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2939         Define.
2940
2941         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2942         (alpha_mangle_fundamental_type): New.
2943         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2944         Define.
2945
2946         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2947         Define.
2948         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2949         Define.
2950         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2951         (sparc_mangle_fundamental_type): New.
2952
2953 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2954
2955         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2956         (s390x-*-linux*): Likewise.
2957         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2958         * config/s390/t-linux: New file.
2959
2960 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2961
2962         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2963         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2964
2965 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2966
2967         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2968         (ANTIC_SAFE_LOADS): New macro.
2969         (find_or_generate_expression): Add prototype.
2970         (set_contains_value): Allow null set for sake of not always having
2971         to allocate ANTIC_SAFE_LOADS.
2972         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2973         Allow COMPONENT_REF too.
2974         (valid_in_set): Allow COMPONENT_REF.
2975         Check ANTIC_SAFE_LOADS too.
2976         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2977         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2978         rename.
2979         (can_PRE_operation): Add COMPONENT_REF.
2980         (create_component_ref_by_pieces): New function.
2981         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2982         (insert_aux): Move AGGREGATE_TYPE_P check here.
2983         (compute_avail): Set bb local stmt uids.
2984         (pass_pre): Use TODO_update_ssa_only_virtuals.
2985
2986 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2987
2988         * configure.ac: Unconditionally disable decimal float by default.
2989         * configure: Regenerate.
2990
2991 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2992
2993         * read-rtl.c (read_name): Terminate reading on EOF.
2994
2995 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2996
2997         * dfp.c (decimal_real_arithmetic): Change second argument type
2998         from int to enum tree_code. Do not always return true, but now
2999         return result of any call to decimal_do helper functions.
3000         * dfp.h (decimal_real_arithmetic): Update prototype.
3001
3002 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
3003
3004         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
3005
3006 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
3007
3008         PR tree-opt/25251
3009         * tree-cfg.c (cleanup_dead_labels): Also don't remove
3010         forced labels.
3011
3012 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3013
3014         * tree-vrp.c (cfg_loops): Removed.
3015         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
3016         Use current_loops instead of cfg_loops.  Pass flags to
3017         loop_optimizer_init.
3018         * cfgloopmanip.c (fix_loop_structure): Update only available
3019         information.
3020         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
3021         loop_optimizer_init.
3022         * modulo-sched.c (build_loops_structure): Removed.
3023         (sms_schedule): Use loop_optimizer_init.
3024         * loop-init.c (loop_optimizer_init): Use flags to determine
3025         which properties of loops to prepare.
3026         (rtl_loop_init): Pass flags to loop_optimizer_init.
3027         * tree-ssa-sink.c (execute_sink_code): Ditto.
3028         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
3029         * tree-ssa-pre.c (init_pre): Ditto.
3030         * cfgloop.h (LOOPS_NORMAL): New.
3031         (loop_optimizer_init): Declaration changed.
3032
3033 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3034
3035         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
3036         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
3037         pa/t-pa.
3038         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
3039         pa/t-pa.
3040         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
3041         pa/x-ada.
3042         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
3043         * pa/t-pa64: Delete quadlib.c rule.
3044         * pa/x-ada: Revert last change.
3045         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
3046
3047 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3048
3049         PR rtl-optimization/26087
3050         * rtlanal.c (canonicalize_condition): Do not cross basic block
3051         boundaries.
3052
3053 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
3054
3055         PR debug/24444
3056         * config/ia64/ia64.c: Include debug.h.
3057         (MAX_ARTIFICIAL_LABEL_BYTES): New.
3058         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
3059         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
3060         (process_epilogue, process_set, process_for_unwind_directive):
3061         Output unwind info only if requested.  Add CFA info if requested.
3062         Add new arguments as needed.  Adjust callers.
3063         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
3064         incorrect default.
3065         (DWARF2_FRAME_INFO): Define to zero.
3066         * config/ia64/unwind-ia64.c: Remove code that compensated for
3067         the CFA offset error fixed above.
3068         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
3069         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
3070         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
3071         -funwind-tables and -fexceptions to enable frame info.
3072         (dwarf2out_frame_init): Define initial CFA even if
3073         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
3074         DWARF2_UNWIND_INFO is nonzero, not just defined.
3075         (dwarf2out_frame_finish): Output non-EH call frame info only
3076         if DWARF2_FRAME_INFO is nonzero.
3077         (convert_cfa_to_loc_list,
3078         compute_frame_pointer_to_cfa_displacement): Define even if
3079         unwind info is not supported.
3080         (gen_subprogram_die): Use the above unconditionally.  Remove
3081         legacy alternate code.
3082         * toplev.c (compile_file): Compile in call to
3083         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
3084         (lang_dependent_init): Ditto for dwarf2out_frame_init.
3085
3086 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
3087             Jakub Jelinek  <jakub@redhat.com>
3088
3089         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
3090         IBM extended float format long double as "g" on powerpc*-linux.
3091
3092 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3093
3094         PR target/25926
3095         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
3096         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
3097
3098 2006-02-03  Jason Merrill  <jason@redhat.com>
3099
3100         PR c++/25979
3101         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
3102
3103         PR middle-end/25977
3104         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
3105         on the return slot if it's an NRV.
3106
3107 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
3108
3109         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
3110         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
3111         rewrite_use): Do not handle USE_OUTER.
3112         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
3113         add_iv_outer_candidates, may_replace_final_value,
3114         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
3115         (find_interesting_uses_op): Functionality of
3116         find_interesting_uses_outer_or_nonlin moved here.
3117         (find_interesting_uses_outside): Use find_interesting_uses_op.
3118
3119 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
3120
3121         PR target/25960
3122         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
3123
3124 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
3125             Ulrich Weigand  <uweigand@de.ibm.com>
3126
3127         PR target/25864
3128         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
3129         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
3130         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
3131         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
3132         and dxr fields.
3133         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
3134         (s390_rtx_costs): Use the new fields to calculate rtx costs.
3135         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
3136         Define secondary reloads for TFmode moves.
3137         (constant_modes): Add TFmode.
3138         (NR_C_MODES): Set to 8.
3139         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
3140         builtin define.
3141         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
3142         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
3143         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
3144         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
3145         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
3146         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
3147         (FPR mode macro): Add TFmode.
3148         (DSF mode macro): New.
3149         (<de>, <dee> mode attributes): Removed.
3150         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3151         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3152         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3153         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3154         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3155         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3156         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3157         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3158         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3159         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3160         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3161         "*negabs<mode>2", "sqrt<mode>2"):
3162         Changed <de> to <xde>. R constraint replaced by <Rf>.
3163         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3164         <Rf>.
3165         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3166         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3167         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3168         splitters.
3169         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3170         "extenddftf2", "extendsftf2"): New expanders.
3171         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3172         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3173         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3174         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3175         New options.
3176         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3177         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3178         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3179         __floatditf): Add a GCC_4.1.0 symbol version tag.
3180         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3181         the new options.
3182
3183 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3184
3185         PR target/25377
3186         * config/i386/i386.c (ix86_function_ok_for_sibcall):
3187         Use targetm.binds_local_p instead of TREE_PUBLIC.
3188
3189 2006-02-02  Roger Sayle  <roger@eyesopen.com>
3190
3191         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
3192         on INTEGER_TYPEs to indicate that it denotes a character type.
3193         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
3194         signed_char_type_node, unsigned_char_type_node and char_type_node.
3195         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
3196         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
3197         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
3198
3199 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
3200             Daniel Berlin  <dberlin@dberlin.org>
3201
3202         * tree-tailcall.c (arg_needs_copy_p): New function.
3203         (eliminate_tail_call): Use arg_needs_copy_p.
3204         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
3205         (add_virtual_phis): New function.
3206
3207 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
3208
3209         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
3210         #ignore instead of #scratch for %g7 .register directive.
3211
3212 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
3213
3214         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
3215         object files.
3216
3217 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3218
3219         * flow.c (calculate_global_regs_live): Assert that there aren't any
3220         EDGE_FAKE edges.
3221
3222 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
3223
3224         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
3225         what its name says.
3226         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
3227         bsi_after_labels iterator.
3228         * tree-if-conv.c (find_phi_replacement_condition,
3229         replace_phi_with_cond_modify_expr): Likewise.
3230         * tree-scalar-evolution.c (scev_const_prop): Likewise.
3231         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
3232
3233 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3234
3235         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
3236
3237 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3238
3239         PR 25990
3240         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3241         array after growing it.
3242
3243 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3244
3245         PR middle-end/24901
3246         * fold-const.c (fold_checksum_tree): Change type of buf.
3247
3248 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3249
3250         * reload.c (push_secondary_reload): Initialize t_icode.
3251
3252 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3253
3254         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3255         -msoft-float -mlong-double-128 only issue a warning, but don't
3256         swich to DFmode long double.
3257
3258 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3259
3260         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3261         has a constant equivalent, iterate over equivalents for arg0,
3262         calling simplify_relational_operation and if there's a result
3263         cheaper than X, apply fold_rtx and return the result.
3264
3265 2006-02-01  Jan Hubicka  <jh@suse.cz>
3266
3267         * opts.c (no_unit_at_a_time_default): New global variable.
3268         (decode_options): Use it.
3269         * opts.h (no_unit_at_a_time_default): Declare.
3270
3271 2006-02-01  Paul Brook  <paul@codesourcery.com>
3272
3273         * function.c (assign_parm_setup_reg): Use function argument promotion
3274         rules.
3275         * expr.c (expand_expr_real_1): Use function argument promotion rules
3276         for PARM_DECLs.
3277
3278 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3279
3280         * gcc.c (process_command): Change j to 'unsigned int'.
3281
3282 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3283
3284         PR middle-end/26001
3285         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3286         Use the corrected index for the character
3287         out of the string constant.
3288
3289 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3290
3291         * mode-switching.c (optimize_mode_switching): Fix size
3292         allocated for bb_info[n_entities].
3293
3294 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3295
3296         * gcc.c (main): Correct type that is allocated for
3297         explicit_link_files.
3298
3299 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3300
3301         * config/s390/s390.c (init_alignment_context): Set
3302         ALIAS_SET_MEMORY_BARRIER on the MEM.
3303         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3304
3305 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3306
3307         PR middle-end/25933
3308         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3309         dom_bbs pointer.
3310         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3311         call to tpa_init.
3312
3313 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3314
3315         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3316         * regrename.c: Ditto.
3317         * tree-ssa-loop-im.c: Ditto.
3318         * tree-dump.c: Ditto.
3319         * tree-complex.c: Ditto.
3320         * genrecog.c: Ditto.
3321         * tree-ssa-threadupdate.c: Ditto.
3322         * tracer.c: Ditto.
3323         * java/class.c: Ditto.
3324         * java/jcf-parse.c: Ditto.
3325         * java/resource.c: Ditto.
3326         * java/except.c: Ditto.
3327         * java/jvspec.c: Ditto.
3328         * java/jcf-write.c: Ditto.
3329         * java/jcf-path.c: Ditto.
3330         * java/gjavah.c: Ditto.
3331         * java/zextract.c: Ditto.
3332         * java/jcf-io.c: Ditto.
3333         * java/jcf.h: Ditto.
3334         * java/buffer.c: Ditto.
3335         * java/lang.c: Ditto.
3336         * java/parse-scan.y: Ditto.
3337         * java/lex.c: Ditto.
3338         * java/lex.h: Ditto.
3339         * cfgloopmanip.c: Ditto.
3340         * postreload-gcse.c: Ditto.
3341         * tree-ssa-loop-manip.c: Ditto.
3342         * postreload.c: Ditto.
3343         * tree-ssa-loop-ch.c: Ditto.
3344         * loop.c: Ditto.
3345         * ipa-cp.c: Ditto.
3346         * cppspec.c: Ditto.
3347         * diagnostic.c: Ditto.
3348         * final.c: Ditto.
3349         * genoutput.c: Ditto.
3350         * gcc.c: Ditto.
3351         * cfghooks.c: Ditto.
3352         * cfgloopanal.c: Ditto.
3353         * objc/objc-act.c: Ditto.
3354         * gcov.c: Ditto.
3355         * genextract.c: Ditto.
3356         * genautomata.c: Ditto.
3357         * pretty-print.c: Ditto.
3358         * genemit.c: Ditto.
3359         * cgraphunit.c: Ditto.
3360         * flow.c: Ditto.
3361         * df-scan.c: Ditto.
3362         * haifa-sched.c: Ditto.
3363         * dominance.c: Ditto.
3364         * dbxout.c: Ditto.
3365         * tree-ssa-loop-ivopts.c: Ditto.
3366         * df-core.c: Ditto.
3367         * mode-switching.c: Ditto.
3368         * modulo-sched.c: Ditto.
3369         * graph.c: Ditto.
3370         * ipa-pure-const.c: Ditto.
3371         * cse.c: Ditto.
3372         * fix-header.c: Ditto.
3373         * web.c: Ditto.
3374         * tree-stdarg.c: Ditto.
3375         * ipa-utils.c: Ditto.
3376         * loop-init.c: Ditto.
3377         * ipa-inline.c: Ditto.
3378         * cfganal.c: Ditto.
3379         * global.c: Ditto.
3380         * alloc-pool.c: Ditto.
3381         * dwarf2out.c: Ditto.
3382         * opts.c: Ditto.
3383         * genattrtab.c: Ditto.
3384         * tree-ssa-loop-ivcanon.c: Ditto.
3385         * predict.c: Ditto.
3386         * timevar.c: Ditto.
3387         * lcm.c: Ditto.
3388         * fortran/gfortranspec.c: Ditto.
3389         * regmove.c: Ditto.
3390         * local-alloc.c: Ditto.
3391         * langhooks.c: Ditto.
3392         * function.c: Ditto.
3393         * tree-vectorizer.c: Ditto.
3394         * gcse.c: Ditto.
3395         * ipa-type-escape.c: Ditto.
3396         * alias.c: Ditto.
3397         * tree-if-conv.c: Ditto.
3398         * profile.c: Ditto.
3399         * ipa.c: Ditto.
3400         * tree-data-ref.c: Ditto.
3401         * loop-unroll.c: Ditto.
3402         * treelang/treetree.c: Ditto.
3403         * calls.c: Ditto.
3404         * bt-load.c: Ditto.
3405         * ggc-common.c: Ditto.
3406         * except.c: Ditto.
3407         * coverage.c: Ditto.
3408         * cselib.c: Ditto.
3409         * tree-cfgcleanup.c: Ditto.
3410         * tree-ssa-pre.c: Ditto.
3411         * cfgcleanup.c: Ditto.
3412         * loop-invariant.c: Ditto.
3413         * loop-iv.c: Ditto.
3414         * ipa-prop.c: Ditto.
3415         * print-tree.c: Ditto.
3416         * conflict.c: Ditto.
3417         * ggc-page.c: Ditto.
3418         * sched-deps.c: Ditto.
3419         * regclass.c: Ditto.
3420         * tree-object-size.c: Ditto.
3421         * combine.c: Ditto.
3422         * bb-reorder.c: Ditto.
3423         * resource.c: Ditto.
3424         * var-tracking.c: Ditto.
3425         * cfgloop.c: Ditto.
3426         * df-problems.c: Ditto.
3427         * reg-stack.c: Ditto.
3428         * tlink.c: Ditto.
3429         * gccspec.c: Ditto.
3430         * sched-rgn.c: Ditto.
3431         * tree-ssa-structalias.c: Ditto.
3432         * tree-ssa-reassoc.c: Ditto.
3433         * config/darwin-c.c: Ditto.
3434         * config/darwin.c: Ditto.
3435         * config/arm/arm.c: Ditto.
3436         * cfgrtl.c: Ditto.
3437         * collect2.c: Ditto.
3438         * reload1.c: Ditto.
3439
3440 2006-01-31  Nicolas Pitre  <nico@cam.org>
3441
3442         * arm.md (smaxsi3): Make aware of smax_m1.
3443         (smax_m1): New.
3444
3445 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3446
3447         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3448
3449 2006-01-31  Richard Guenther  <rguenther@suse.de>
3450
3451         * doc/invoke.texi (-msselibm): Document.
3452         * target.h (expand_library_builtin): New target hook.
3453         * builtins.c (expand_builtin): Use expand_library_builtin.
3454         (default_expand_library_builtin): New function.
3455         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3456         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3457         (link_gcc_math_spec): Declare.
3458         (static_specs): Add link_gcc_math_spec.
3459         * expr.h (default_expand_library_builtin): Declare.
3460         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3461         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3462         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3463         * config/i386/i386.opt (msselibm): New target option.
3464         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3465         (ix86_init_sse_abi_builtins): New function.
3466         (ix86_expand_library_builtin): Likewise.
3467         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3468         (override_options): Handle error conditions wrt -msselibm.
3469         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3470         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3471         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3472         builtins.
3473
3474 2006-01-31  Richard Guenther  <rguenther@suse.de>
3475         Paolo Bonzini  <bonzini@gnu.org>
3476
3477         * doc/install.texi (--disable-libgcc-math): Document.
3478
3479 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3480
3481         * expr.h (expand_normal): new inline function.
3482         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3483         * dojump.c: use it.
3484         * dwarf2out.c: use it.
3485         * expr.c: use it.
3486         * calls.c: use it.
3487         * expmed.c: use it.
3488         * except.c: use it.
3489         * config/sparc/sparc.c: use it.
3490         * config/i386/i386.c: use it.
3491         * config/rs6000/rs6000.c: use it.
3492         * config/arm/arm.c: use it.
3493         * config/mips/mips.c: use it.
3494         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3495
3496 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3497
3498         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3499         argv to the appropriate type.
3500
3501 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3502
3503         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3504         unreachable code.
3505
3506 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3507
3508         PR target/26018
3509         * config/s390/s390.c (struct machine_function): New flag
3510         decomposed_literal_pool_addresses_ok_p.
3511         (s390_reorg): Set it before final stage of literal pool transforms.
3512         (s390_decompose_address): Only accept displacements of the form
3513         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3514
3515 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3516
3517         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3518         the comparison routine return.
3519
3520 2006-01-30  Michael Matz  <matz@suse.de>
3521
3522         * global.c (find_reg): Only evict for global regs.
3523         Take n_refs into account and dump more info.
3524
3525 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3526
3527         PR target/14798:
3528         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3529         (pragma_trap, pragma_nosave_low_regs): Likewise.
3530         (current_function_anonymous_args): Likewise.
3531         (sh_deferred_function_attributes): New variable.
3532         (sh_deferred_function_attributes_tail): Likewise.
3533         (print_operand): For '@', look up trap_exit attribute.
3534         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3535         handlers, save/restore fpscr, but don't do any other
3536         interrupt-specific saves.
3537         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3538         Fix check for partially saved registers to check for SHmedia.
3539         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3540         (sh_output_function_epilogue): Don't clear any of the removed
3541         variables.
3542         (sh_insert_attributes): Don't check pragma_interrupt.
3543         Insert deferred attributes.  Check that interrupt attribute is
3544         present for other attributes that require its presence.
3545         (sh_attribute_table): Add new attributes trapa_handler and
3546         nosave_low_regs.
3547         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3548         Don't check for pragma_interrupt.  Don't store argument.
3549         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3550         (sh_deferred_function_attributes): Declare.
3551         (sh_deferred_function_attributes_tail): Likewise.
3552         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3553         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3554         (*return_i): Don't use when trap_exit attribute is in effect.
3555         (*return_trapa): New insn pattern.
3556         * sh-c.c: New file.
3557         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3558         setting c_target_objs and cxx_target_objs.
3559         * t-sh: Add rule for sh-c.o.
3560
3561 2006-01-30  Richard Guenther  <rguenther@suse.de>
3562
3563         PR c++/23372
3564         * gimplify.c (gimplify_target_expr): Handle easy cases
3565         without creating a temporary.
3566
3567 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3568
3569         * vec.h (safe_grow): Remove duplicated line.
3570
3571 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3572
3573         PR 25874
3574         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3575         (expand_omp): ... here.
3576         (expand_omp_parallel): Only remove barriers for combined
3577         parallel+workshare constructs.
3578
3579 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3580
3581         Revert
3582
3583         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3584         * tree.c (build_qualified_type): Chain the new type to the original
3585         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3586         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3587         (build_pointer_type_for_mode): Only return unqualified types.
3588         (build_reference_type_for_mode): Likewise.
3589
3590 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3591
3592         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3593         * Makefile.in (CXX_COMPAT_WARN): Define.
3594         * configure: Regenerate.
3595
3596 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3597
3598         PR tree-opt/25911
3599         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3600         to an if check.
3601
3602 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3603
3604         * toplev.c: Fix thinko.
3605
3606 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3607             Marcin Dalecki  <martin@dalecki.de>
3608
3609         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3610         (push_srcloc): Use XNEW.
3611         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3612
3613 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3614
3615         * df-core.c (df_set_blocks): Deleted all variable.
3616
3617 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3618
3619         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3620         cgraph_output_pending_asms.
3621
3622 2006-01-28  Zack Weinberg  <zackw@panix.com>
3623
3624         * c.opt: Add -W(no-)overlength-strings.
3625         * doc/invoke.texi: Document it.
3626         * c-opts.c (c_common_handle_option): -pedantic implies
3627         -Woverlength-strings, if not explicitly disabled already.
3628         (c_common_post_options): -Woverlength-strings defaults to off, and
3629         is always off for C++.
3630         * c-common.c (fix_string_type): Issue warning about strings longer
3631         than is portable only if warn_overlength_strings.  Rearrange code
3632         a little for clarity.
3633         * configure.in: Check for -Wno-overlength-strings as well before
3634         enabling -pedantic in stage 1.
3635         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3636         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3637
3638         * genconditions.c (write_header, write_one_condition)
3639         (write_conditions, write_writer): Consolidate very long strings
3640         that were broken up to fit in C89 portable limit.  Don't use
3641         printf when fputs will do.
3642
3643 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3644
3645         * combine.c (simplify_comparison <AND>): Check
3646         TRULY_NOOP_TRUNCATION before start using a subreg.
3647
3648         * config/mips/mips.md (*branch_zero<mode>,
3649         *branch_zero<mode>_inverted, *branch_equality<mode>,
3650         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3651         Remove mode check from comparisons.
3652
3653 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3654
3655         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3656
3657 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3658
3659         * expmed.c (const_mult_add_overflow_p): Remove.
3660         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3661
3662         * recog.c (validate_replace_rtx_subexp): Remove.
3663         * recog.h: Remove the prototype for
3664         validate_replace_rtx_subexp.
3665
3666         * integrate.h: Remove the prototype for
3667         copy_decl_for_inlining.
3668         * rtl.h: Remove the prototype for mark_constant_function.
3669         * tree-vectorizer.h: Remove the prototype for
3670         vect_strip_conversion.
3671
3672         * modulo-sched.c (create_partial_schedule,
3673         free_partial_schedule, reset_partial_schedule): Make them
3674         static.
3675
3676         * hooks.c (hook_bool_rtx_int_false): Remove.
3677         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3678
3679 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3680
3681         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3682         and -mlong-double-128 are incompatible.
3683         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3684         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3685         (TARGET_LIBGCC2_CFLAGS): Define.
3686         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3687         (TARGET_LIBGCC2_CFLAGS): Same.
3688         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3689
3690 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3691
3692         PR c/19606.
3693         * c-typeck.c (build_binary_op): Perform implicit casts of
3694         operands before shortening them.
3695
3696         * cfgloopmanip.c (split_loop_bb): Remove.
3697         * cfgloop.h: Remove the prototype for split_loop_bb.
3698
3699         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3700         * cfgloop.h: Remove the prototype for
3701         flow_loop_outside_edge_p.
3702
3703         * emit-rtl.c (init_virtual_regs): Make it static.
3704         * function.h: Remove the prototype for init_virtual_regs.
3705
3706         * recog.c (peephole2_optimize): Make it static.
3707         * recog.h: Remove the prototype for peephole2_optimize.
3708
3709 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3710
3711         * df-scan.c (df_record_entry_block_defs): Check if
3712         INCOMING_RETURN_ADDR_RTX is defined.
3713
3714 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3715             Kenneth Zadeck <zadeck@naturalbridge.com>
3716
3717         PR rtl-optimization/24762
3718         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3719         * targhooks.c (hook_void_bitmap): New hook prototype.
3720         * targhoohs.h (hook_void_bitmap): Ditto.
3721         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3722         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3723         * target.h (live_on_entry): New function pointer.
3724         * df-scan.c (df_all_hard_regs): Removed.
3725         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3726         (df_scan_free_internal): Added df->entry_block_defs.
3727         (df_scan_alloc): Ditto.
3728         (df_scan_dump): Ditto.
3729         (df_uses_record): Plumbed flag field properly thru calls.
3730         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3731         This part fixes PR24762.
3732         (df_bb_refs_record): Added code to make the frame and arg
3733         pointers live in EH blocks.
3734         (df_refs_record): Added call to df_record_entry_block_defs.
3735         (df_record_entry_block_defs): New function.
3736         * df-core.c: Added comments to describe new artifical defs.
3737         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3738         (entry_block_defs): New field in struct df.
3739         (df_all_hard_regs): Deleted.
3740         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3741         * df-problems.c (df_ru_bb_local_compute_process_def):
3742         Added code to handle artifical defs in the entry to a function.
3743         (df_ru_bb_local_compute): Ditto.
3744         (df_rd_bb_local_compute_process_def):  Ditto.
3745         (df_rd_bb_local_compute): Ditto.
3746         (df_lr_bb_local_compute): Ditto.
3747         (df_ur_bb_local_compute): Ditto.
3748         (df_urec_bb_local_compute):  Ditto.
3749         (df_chain_create_bb):  Ditto.
3750         (df_ur_local_finalize): Removed entry.
3751         (df_urec_init): Ditto.
3752         (df_urec_local_finalize): Ditto.
3753         (df_ri_bb_compute): Added detection of last use of pseudos.
3754         * Makefile.in (df-scan.o): Updated dependencies.
3755         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3756         * config/mips/mips.c (mips_set_live_on_entry): Added.
3757         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3758         for target hook.
3759         * dce.c (marked_insn_p): Added code to handle artifical defs.
3760
3761 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3762
3763         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3764         intrinsic.
3765         (_mm_cvtsi128_si64): Likewise.
3766         (_mm_cvtsd_si64): Likewise.
3767         (_mm_cvttsd_si64): Likewise.
3768         (_mm_cvtsi64_sd): Likewise.
3769         (_mm_cvtsi64_si128): Likewise.
3770         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3771         (_mm_cvtsi64_m64): Likewise.
3772         (_m_to_int64): Likewise.
3773         (_mm_cvtm64_si64): Likewise.
3774         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3775         (_mm_cvttss_si64): Likewise.
3776         (_mm_cvtsi64_ss): Likewise.
3777         (_mm_cvtss_f32): Likewise.
3778
3779 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3780
3781         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3782         for pragma redefine_extname.
3783
3784 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3785
3786         PR target/25864
3787         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3788         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3789         -mno-minimal-toc to previous content.
3790         (bispecs): Remove goal.
3791         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3792         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3793         compatibility aliases on powerpc-*-*gnu*.
3794         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3795         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3796         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3797         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3798         (ldblspecs): New goal.
3799         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3800         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3801         _df_to_tf.
3802         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3803         L_sf_to_tf or L_df_to_tf is defined.
3804
3805 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3806             Alan Modra  <amodra@bigpond.net.au>
3807
3808         PR target/25864
3809         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3810         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3811         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3812         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3813         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3814         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3815         (rs6000_override_options): Initialize rs6000_ieeequad.
3816         Initialize TFmode format to ibm_extended_format if not
3817         TARGET_IEEEQUAD.
3818         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3819         ieeelongdouble.
3820         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3821         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3822         (function_arg_advance): IBM long double passed in two FPRs, not
3823         split.
3824         (function_arg): IBM long double passed in FPRs.
3825         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3826         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3827         Only multireg GPR aligned.
3828         (rs6000_init_libfuncs): Enable IBM long double functions if not
3829         IEEEQUAD.
3830         (rs6000_generate_compare): Use IBM long double compare if not
3831         TARGET_IEEEQUAD.
3832         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3833         (TARGET_IEEEQUAD): Define.
3834         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3835         not TARGET_IEEEQUAD.
3836         * config/rs6000/rs6000.md: Enable TFmode patterns if
3837         !TARGET_IEEEQUAD.
3838         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3839         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3840         and -mlong-double-128 are incompatible.
3841         * doc/invoke.texi (-mabi): Collect options together.  Add
3842         ibmlongdouble and ieeelongdouble.
3843
3844 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3845
3846         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3847         opaque type.
3848         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3849         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3850         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3851         * rtl.h (rtunion_def): Remove rt_ptr.
3852         (X0PTR): Delete.
3853         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3854         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3855         * config/i386/winnt.c (i386_pe_mark_dllexport)
3856         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3857
3858 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3859
3860         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3861
3862 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3863
3864         PR other/24829
3865         PR target/24831
3866         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3867         pthread_key_delete.  From John David Anglin.  gthrw-ify
3868         pthread_getunique_np only if it it's not a macro.  Delete
3869         UNUSED macro.
3870         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3871         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3872         __gthread_objc_condition_signal, __gthread_key_delete): Add
3873         "__attribute__ ((__unused__))" to unused arguments.
3874         (__gthread_recursive_mutex_init_function): Add missing return.
3875         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3876         gthr-posix95.h: Use macro-based approach for name redirection
3877         on targets missing weakref.
3878
3879 2006-01-26  Zack Weinberg  <zackw@panix.com>
3880
3881         * genconditions.c (write_header): In generated code, #ifdef out
3882         all includes and fake declarations, except includes of bconfig.h
3883         and system.h, unless GCC_VERSION >= 3001.  Do not include
3884         gensupport.h in any case.
3885         (write_conditions): Generate a definition of struct c_test.  Add
3886         a comment to the generated #endif.
3887         (write_one_condition): Escape backslashes in string too.
3888         (write_writer): Generated code must escape backslashes and quote
3889         marks (but not newlines) in the strings it writes.
3890         * Makefile.in (build/gencondmd.o): Update dependencies.
3891
3892 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3893
3894         PR target/25961
3895         * Makefile.in (insn-automata.o): Add header file dependencies.
3896         * genautomata.c: Add includes.
3897
3898 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3899
3900         PR target/25961
3901         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3902
3903 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3904
3905         * configure.ac: Expect target tools paths to be passed from the toplevel
3906         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3907         AS_SET_VAR_IF.
3908         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3909
3910 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3911
3912         PR c/25892
3913         * c.opt (Wpointer-sign): Init to -1.
3914         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3915         OPT_pedantic, to 0 otherwise.
3916         * doc/invoke.texi: Update.
3917
3918 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3919
3920         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3921         constants provided by 80387 instructions in the destination mode.
3922
3923 2006-01-26  Richard Guenther  <rguenther@suse.de>
3924             Andrew Pinski  <pinskia@physics.uc.edu>
3925
3926         PR tree-opt/21470
3927         partial PR tree-opt/17064
3928         * tree-ssa-structalias.c (intra_create_variable_infos):
3929         Create heap variables for incoming parameters if
3930         flag_argument_noalias > 1.
3931         (find_what_p_points_to): Look through default defs of
3932         parameter decls.
3933
3934 2006-01-26  Jeff Law  <law@redhat.com>
3935
3936         PR ada/25900
3937         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3938         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3939         within the VR_RANGE, use the VR_RANGE as the result, not the
3940         VR_ANTI_RANGE.
3941         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3942         bounds for the type.
3943
3944 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3945
3946         * tree-ssa-alias.c (maybe_create_global_var): Change
3947         subvar walking to an assertion that we don't have subvar'd variables.
3948
3949 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3950
3951         PR C/25861
3952         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3953         Use a new variable, inner.  PARM_DECLs are always non-weak.
3954
3955 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3956
3957         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3958         --disable-checking.
3959
3960 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3961
3962         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3963
3964 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3965
3966         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3967         (smax_insn, smin_insn, smax_0, smin_0): New.
3968
3969 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3970
3971         PR target/25947
3972         * config/cris/cris.c (cris_order_for_addsi3): New function.
3973         * config/cris/cris-protos.h: Prototype it.
3974         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3975         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3976         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3977         (split for "op.S1 [rx=rx+i],ry (swapped)")
3978         (split for "op(s|u).S1 [rx=rx+i],ry")
3979         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3980         Apply cris_order_for_addsi3 when generating addsi3 insns.
3981
3982 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3983
3984         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3985         (TREE_BLOCK): Add call to EXPR_CHECK.
3986
3987 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3988
3989         PR 25886
3990         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.