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