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* doc/md.texi: Update documentation of MIPS constraints.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
2
3         * doc/md.texi: Update documentation of MIPS constraints.
4         * config/mips/constraints.md: New file.
5         * config/mips/mips.md: Include it.
6         * config/mips/mips.c (mips_char_to_class): Delete.
7         (override_options): Don't initialize mips_char_to_class.
8         * config/mips/mips.h (mips_char_to_class): Delete.
9         (REG_CLASS_FROM_LETTER): Delete.
10         (CONST_OK_FOR_LETTER_P): Delete.
11         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
12         (EXTRA_CONSTRAINT_Y): Delete.
13         (EXTRA_CONSTRAINT_STR): Delete.
14         (CONSTRAINT_LEN): Delete.
15         (EXTRA_MEMORY_CONSTRAINT): Delete.
16
17 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
18
19         * tree-cfg.c (move_block_to_fn): Remove the statements from the
20         original fn's eh regions.
21
22 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
23
24         * fold-const.c (build_range_check): Make sure to use a valid type to
25         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
26         transformation.
27
28         (range_predecessor): New static function.
29         (range_successor): Likewise.
30         (merge_ranges): Use them to compute predecessors and successors of
31         range bounds.
32
33 2006-03-09  Roger Sayle  <roger@eyesopen.com>
34
35         PR middle-end/26561
36         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
37         X op C3, consider whether C3 overflows towards +Inf or -Inf.
38
39 2006-03-08  DJ Delorie  <dj@redhat.com>
40
41         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
42         (addpsi3): Expand to include memory operands.  Remove
43         reload-specific splits.
44         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
45         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
46         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
47         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
48         (shift1_qi, shift1_hi, insv): New.
49         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
50         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
51         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
52         cond_to_int): New.
53         * config/m32c/m32c-protos.h: Update as needed.
54         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
55         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
56         Fail for unrecognized R* constraints.
57         (m32c_cannot_change_mode_class): Be more picky about pseudos.
58         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
59         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
60         Add Sp constraint.
61         (m32c_init_libfuncs): New.
62         (m32c_legitimate_address_p): Add debug wrapper.
63         (m32c_rtx_costs): New.
64         (m32c_address_cost): New.
65         (conversions): Add 'B' prefix.
66         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
67         operands, or word regnames for QI operands.  'B' prints bit
68         position.
69         (m32c_expand_setmemhi): New.
70         (m32c_expand_movmemhi): New.
71         (m32c_expand_movstr): New.
72         (m32c_expand_cmpstr): New.
73         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
74         (m32c_expand_neg_mulpsi3): Handle non-ints.
75         (m32c_cmp_flg_0): New.
76         (m32c_expand_movcc): New.
77         (m32c_expand_insv): New.
78         (m32c_scc_pattern): New.
79         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
80         a0/a1 out of SIregs.
81         (STORE_FLAG_VALUE): New.
82         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
83         code macros.
84         (no_insn): New.
85         * config/m32c/mov.md: Make constraints more liberal.
86         (zero_extendqihi2): Optimize r0/r1 case.
87         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
88         * config/m32c/predicates.md (m32c_any_operand): New.
89         (m32c_nonimmediate_operand): New.
90         (m32c_hl_operand): New.
91         (m32c_r3_operand): New.
92         (ap_operand): New.
93         (ma_operand): New.
94         (memsym_operand): New.
95         (memimmed_operand): New.
96         (a_qi_operand): New.
97         (m32c_eqne_operator): New.
98         (m32c_1bit8_operand): New.
99         (m32c_1bit16_operand): New.
100         (m32c_1mask8_operand): New.
101         (m32c_1mask16_operand): New.
102         * config/m32c/blkmov.md: New file.
103         * config/m32c/t-m32c (MD_FILES): Add blkmov.
104
105 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
106
107         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
108         unsigned to fix signed/unsigned comparison issue in
109         DWARF2_FRAME_REG_OUT.
110         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
111         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
112
113         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
114         of ptr into the ENABLE_CHECKING section.
115
116 2006-03-08  Jeff Law  <law@redhat.com>
117
118         * tree-vrp.c (infer_value_range): Only count pointer uses
119         and dereferences if -fdelete-null-pointer-checks is enabled.
120
121         * tree-vrp.c (find_assert_locations): Infer value ranges for
122         single use pointers, but do not create ASSERT_EXPRs for them.
123         When a non-null range is inferred for a pointer, backwards
124         propagate that range to other equivalent pointers through the
125         use-def chain.
126
127 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
128
129         PR bootstrap/26500
130         * Makefile.in (dvi, html, install-info): Invoke the corresponding
131         language hook targets.
132         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
133         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
134         if language hook targets were missing.
135
136 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
137
138         * tree-ssa-opfinalize.h: Removed.
139         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
140         dependency.
141         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
142         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
143         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
144         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
145         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
146         finalize_ssa_v_must_def_ops): New.
147
148 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
149
150         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
151         block as parameter.
152
153 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
154
155         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
156
157         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
158         addresses with offsets; reorganize.
159
160         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
161         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
162         (expand_builtin_init_dwarf_reg_sizes): Likewise.
163
164 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
165
166         PR target/26588
167         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
168
169 2006-03-08  Ben Elliston  <bje@au.ibm.com>
170
171         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
172
173 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
174
175         PR gomp/26238
176         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
177         expansion.
178
179 2006-03-07  Richard Guenther  <rguenther@suse.de>
180
181         PR tree-optimization/26587
182         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
183
184 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
185
186         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
187
188 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
189
190         * hooks.c (hook_bool_mode_rtx_true): New function.
191         * hooks.h (hook_bool_mode_rtx_true): Declare.
192         * toplev.c (compile_file): Call output_shared_constant_pool.
193         * varasm.c (shared_constant_pool): New variable.
194         (assemble_start_function, assemble_end_function): Remove arguments
195         from call to output_constant_pool.
196         (create_constant_pool): New function, split out from...
197         (init_varasm_status): ...here.
198         (force_const_mem): Choose between the shared and per-function constant
199         pools.  Set current_function_uses_const_pool when reusing old entries
200         as well as when creating new ones.
201         (mark_constant): Ignore data argument.
202         (mark_constants): Remove pool argument.
203         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
204         to decide whether the function uses a constant pool.
205         (output_constant_pool_contents): New function, split out from...
206         (output_constant_pool): ...here.
207         (output_shared_constant_pool): New function.
208         (init_varasm_once): Initialize shared_constant_pool.
209         * output.h (output_constant_pool): Delete.
210         (output_shared_constant_pool): Declare.
211         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
212         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
213
214 2006-03-06  Nick Clifton  <nickc@redhat.com>
215
216         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
217         flag_strength_reduce.
218
219 2006-03-06  Ben Elliston  <bje@au.ibm.com>
220
221         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
222         x86_64-*-linux* configurations.
223
224         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
225         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
226
227 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
228
229         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
230         Remove.
231         * basic-block.h: Remove the extern for
232         rediscover_loops_after_threading.
233
234         * cfgloop.c (cancel_loop): Make it static.
235         * cfgloop.h: Remove the prototype for cancel_loop.
236
237         * flow.c (recompute_reg_usage): Make it static.
238         * rtl.h: Remove the prototype for recompute_reg_usage.
239
240         * function.c (use_return_register): Make it static.
241         * function.h: Remove the prototype.
242
243 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
244
245         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
246         Remove.
247         * recog.h: Remove the prototype for
248         validate_change_maybe_volatile.
249
250 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
251
252         * rtlanal.c (replace_reg): Remove.
253         * rtl.h: Remove the prototype for replace_reg.
254
255 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
256
257         * regclass.c (reg_scan_update): Remove.
258         (reg_scan_mark_refs): Remove the last argument.
259         * rtl.h: Remove the prototype for reg_scan_update.
260
261 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
262
263         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
264         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
265         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
266         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
267         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
268         loop-invariant.c, omp-low.c, opts.c, passes.c,
269         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
270         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
271         tree-ssa-structalias.c, tree-ssa-threadedge.c,
272         tree-ssa-threadupdate.c, tree-vect-patterns.c,
273         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
274         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
275
276 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
277
278         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
279         * dwarf2out.h: Remove the prototype for
280         dwarf2out_add_library_unit_info.
281
282 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
283
284         * tree.c (add_var_to_bind_expr): Remove.
285         * tree.h: Remove the prototype for add_var_to_bind_expr.
286
287 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
288
289         * regclass.c (n_non_fixed_regs): Remove.
290         (init_reg_sets_1, globalize_reg): Remove all uses of
291         n_non_fixed_regs.
292         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
293
294 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
295
296         * rtlanal.c (insns_safe_to_move_p): Remove.
297         * rtl.h: Remove the prototype for insns_safe_to_move_p.
298
299 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
300
301         * expmed.c (expand_mult_add): Remove.
302         * expr.h: Remove the prototype for expand_mult_add.
303
304 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
305
306         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
307         and REG_SAVED_VAL_EXP constants.
308         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
309         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
310         Handle regs stored by value.
311         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
312         (execute_cfa_program): Handle DW_CFA_val_offset,
313         DW_CFA_val_offset_sf and DW_CFA_val_expression.
314         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
315         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
316         (uw_install_context_1): Handle target regs stored by value.
317
318 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
319
320         * tree-sra.c (tree_sra): Return todoflags;
321         (generate_one_element): Set TODO_update_smt_usage if needed.
322         (pass_sra): Remove TODO_update_smt_usage.
323         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
324         parameter.
325         (tree_ssa_forward_propagate_single_use_vars): Return
326         TODO_update_smt_usage if we need to update SMT usage.
327         (pass_forwprop): Remove TODO_update_smt_usage.
328         
329 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
330
331         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
332         (correct_use_link): Remove reference to get_stmt_operands.
333         (update_stmt_operands): Likewise.
334         (get_modify_expr_operands): New function factored out of
335         parse_ssa_operands and get_expr_operands.
336         Try to create V_MUST_DEFs for LHS by default.
337         (get_expr_operands) <case MODIFY_EXPR>: Call
338         get_modify_expr_operands.
339         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
340         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
341         (parse_ssa_operands) <case MODIFY_EXPR>: Call
342         get_modify_expr_operands.
343
344 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
345
346         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
347         * tree-flow.h: Remove the prototype for
348         referenced_var_lookup_if_exists.
349
350 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
351
352         PR rtl-optimization/26345
353         PR target/19061
354         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
355
356 2006-03-03  Roger Sayle  <roger@eyesopen.com>
357
358         PR tree-optimization/26524
359         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
360         fold_convert to create a constant of the appropriate type.
361
362 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
363
364         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
365         SYMBOL_REF_IN_BLOCK_P.
366         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
367         of SYMBOL_FLAG_IN_BLOCK.
368         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
369         instead of SYMBOL_REF_IN_BLOCK_P.
370         * explow.c (use_anchored_address): Likewise.
371         * rtl.c (rtx_size): Likewise.
372         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
373         instead of SYMBOL_FLAG_IN_BLOCK.
374         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
375         SYMBOL_REF_IN_BLOCK_P.
376         (assemble_variable): Likewise.
377         (output_constant_def_contents): Likewise.
378         (output_constant_pool): Likewise.
379         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
380         instead of SYMBOL_FLAG_IN_BLOCK.
381         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
382         SYMBOL_REF_IN_BLOCK_P.
383         (SYMBOL_REF_BLOCK): Likewise.
384         (SYMBOL_REF_OFFSET): Likewise.
385         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
386         SYMBOL_REF_IN_BLOCK_P.
387         (SYMBOL_FLAG_IN_BLOCK): Replace with...
388         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
389         (SYMBOL_REF_IN_BLOCK_P): Replace with...
390         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
391
392 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
393
394         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
395
396 2006-03-02  Roger Sayle  <roger@eyesopen.com>
397
398         * simplify-rtx.c (simplify_unary_operation): When simplifying
399         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
400         that we perform the right shift in the appropriate mode, and
401         then extend or truncate the result to requested mode.
402
403 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
404
405         * gengtype.c (main): Handle double_int type.
406         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
407         * double-int.c: New file.
408         * double-int.h: New file.
409         * system.h: Include doubleint.h.
410         * Makefile.in (SYSTEM_H): Include double-int.h.
411         (double-int.o): Add.
412
413 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
414
415         PR bootstrap/26478
416         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
417         copying over it.
418
419 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
420
421         * tree-vrp.c (remove_range_assertions): Do not update statements
422         unnecessarily.
423
424 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
425
426         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
427         cleanup.
428         * gcse.c (rest_of_handle_gcse): Ditto.
429         * except.c (gate_handle_eh): Ditto.
430         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
431         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
432
433 2006-03-02  Eric Christopher  <echristo@apple.com>
434
435         * config/i386/i386.c (machopic_output_stub): Add indirection to
436         jump.
437
438 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
439
440         * loop.c: Removed.
441
442 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
443
444         Sun Niagara specific optimizations.
445         * config.gcc: Recognize niagara as target.
446         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
447         (TARGET_CPU_niagara): Define.
448         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
449         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
450         (CPP_CPU_SPEC): Handle -mcpu=niagara.
451         (ASM_CPU_SPEC): Likewise.
452         (PROCESSOR_NIAGARA): New enum entry.
453         (REGISTER_MOVE_COST): Handle Niagara.
454         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
455         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
456         (sparc_override_options): Recognize "niagara", set appropriate
457         default MASK_* values for it, and align functions to 32-bytes
458         by default just like ULTRASPARC/ULTRASPARC3.
459         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
460         (sparc64_initialize_trampoline): Likewise.
461         (sparc_use_sched_lookahead): Use zero for niagara.
462         (sparc_issue_rate): Use one for niagara.
463         * config/sparc/niagara.md: New file.
464         * config/sparc/sparc.md: Include it.
465         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
466         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
467         when default cpu is niagara.
468         (CPP_CPU_SPEC): Handle -mcpu=niagara.
469         (ASM_CPU_SPEC): Likewise.
470         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
471         when default cpu is niagara.
472         (ASM_CPU_SPEC): Handle -mcpu=niagara.
473         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
474         just like v9/ultrasparc/ultrasparc3.
475         * doc/invoke.texi: Add documentation for "niagara" and improve
476         existing documentation for ultrasparc variants.
477
478 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
479
480         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
481
482 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
483
484         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
485         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
486         and say that only one is needed.
487         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
488         * target.h (have_switchable_bss_sections): New hook.
489         * explow.c (use_anchored_address): Check that the symbol is in a block.
490         * varasm.c (tls_comm_section, comm_section, lcomm_section)
491         (bss_noswitch_section): New variables.
492         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
493         (get_noswitch_section): New function.
494         (get_block_for_section): Allow SECT to be null.
495         (unlikely_text_section_p): Use SECTION_STYLE.
496         (bss_initializer_p): New function.
497         (get_variable_section): Move earlier in file.  Take a new argument,
498         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
499         Return one of the new *_sections in such cases.
500         (get_block_for_decl): New function, extracting some logic from
501         use_blocks_for_decl_p.
502         (change_symbol_section): Remove in favor of...
503         (change_symbol_block): ...this new function.
504         (use_blocks_for_decl_p): Remove checks now performed by
505         get_block_for_decl.
506         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
507         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
508         (emit_local, emit_bss, emit_common): ...these new functions.
509         Return true if the alignment was honored.
510         (emit_tls_common): New function.
511         (asm_emit_uninitialised): Delete.
512         (assemble_variable_noswitch): New function, split out from...
513         (assemble_variable): ...here.  Don't make decisions about common
514         variables here.  Globalize all public decls that go into non-common
515         sections.  Check whether SYMBOL_REF_BLOCK is null.
516         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
517         (output_constant_pool): Likewise.
518         (init_varasm_once): Initialize the new section variables.
519         (have_global_bss_p): New function.
520         (categorize_decl_for_section): Use bss_initializer_p.
521         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
522         (place_block_symbol): Assert that the symbol must be in a block.
523         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
524         (TARGET_INITIALIZER): Include it.
525         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
526         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
527         (SECTION_MACH_DEP): Bump by two.
528         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
529         (unnamed_section): Mention SECTION_UNNAMED in comment.
530         (named_section): Likewise SECTION_NAMED.
531         (noswitch_section_callback): New type.
532         (noswitch_section): New structure.
533         (section): Add a noswitch_section alternative.
534         (SECTION_STYLE): New macro.
535         (tls_comm_section, comm_section, lcomm_section): Declare.
536         (bss_noswitch_section, have_global_bss_p): Declare.
537         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
538         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
539         Override.
540         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
541         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
542         Override.
543
544 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
545
546         * gcc/tree-vrp.c (execute_vrp): Return value.
547         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
548         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
549         * gcc/tree-complex.c (tree_lower_complex): Ditto.
550         (tree_lower_complex_O0): Ditto.
551         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
552         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
553         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
554         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
555         (execute_tail_calls): Ditto.
556         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
557         * gcc/tree.h (init_function_for_compilation): Ditto.
558         * gcc/ipa-cp.c (ipcp_driver): Ditto.
559         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
560         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
561         * gcc/final.c (compute_alignments): Ditto.
562         (rest_of_handle_final): Ditto.
563         (rest_of_handle_shorten_branches): Ditto.
564         (rest_of_clean_state): Ditto.
565         * gcc/omp-low.c (execute_expand_omp): Ditto.
566         (execute_lower_omp): Ditto.
567         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
568         * gcc/ipa-reference.c (static_execute): Ditto.
569         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
570         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
571         (rest_of_handle_machine_reorg): Ditto.
572         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
573         * gcc/flow.c (recompute_reg_usage): Ditto.
574         (rest_of_handle_remove_death_notes): Ditto.
575         (rest_of_handle_life): Ditto.
576         (rest_of_handle_flow2): Ditto.
577         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
578         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
579         (do_ssa_store_ccp): Ditto.
580         (execute_fold_all_builtins): Ditto.
581         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
582         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
583         * gcc/ipa-pure-const.c (static_execute): Ditto.
584         * gcc/cse.c (rest_of_handle_cse): Ditto.
585         (rest_of_handle_cse2): Ditto.
586         * gcc/web.c (rest_of_handle_web): Ditto.
587         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
588         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
589         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
590         * gcc/tree-nrv.c (tree_nrv): Ditto.
591         (execute_return_slot_opt): Ditto.
592         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
593         (create_structure_vars): Ditto.
594         * gcc/loop-init.c (rtl_loop_init): Ditto.
595         (rtl_loop_done): Ditto.
596         (rtl_move_loop_invariants): Ditto.
597         (rtl_unswitch): Ditto.
598         (rtl_unroll_and_peel_loops): Ditto.
599         (rtl_doloop): Ditto.
600         * gcc/gimple-low.c (lower_function_body): Ditto.
601         (mark_used_blocks): Ditto.
602         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
603         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
604         (cgraph_early_inlining): Ditto.
605         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
606         * gcc/jump.c (cleanup_barriers): Ditto.
607         (purge_line_number_notes): Ditto.
608         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
609         (rest_of_handle_if_after_reload): Ditto.
610         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
611         (tree_ssa_loop_im): Ditto.
612         (tree_ssa_loop_unswitch): Ditto.
613         (tree_vectorize): Ditto.
614         (tree_linear_transform): Ditto.
615         (tree_ssa_loop_ivcanon): Ditto.
616         (tree_ssa_empty_loop): Ditto.
617         (tree_ssa_loop_bounds): Ditto.
618         (tree_complete_unroll): Ditto.
619         (tree_ssa_loop_prefetch): Ditto.
620         (tree_ssa_loop_ivopts): Ditto.
621         (tree_ssa_loop_done): Ditto.
622         * gcc/predict.c (tree_estimate_probability): Ditto.
623         * gcc/recog.c (split_all_insns_noflow): Ditto.
624         (rest_of_handle_peephole2): Ditto.
625         (rest_of_handle_split_all_insns): Ditto.
626         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
627         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
628         (rest_of_handle_stack_adjustments): Ditto.
629         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
630         * gcc/function.c (instantiate_virtual_regs): Ditto.
631         (init_function_for_compilation): Ditto.
632         (rest_of_handle_check_leaf_regs): Ditto.
633         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
634         (rest_of_handle_gcse): Ditto.
635         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
636         * gcc/alias.c (rest_of_handle_cfg): Ditto.
637         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
638         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
639         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
640         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
641         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
642         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
643         * gcc/except.c (set_nothrow_function_flags): Ditto.
644         (convert_to_eh_region_ranges): Ditto.
645         (rest_of_handle_eh): Ditto.
646         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
647         (remove_unnecessary_notes): Ditto.
648         * gcc/except.h (set_nothrow_function_flags): Ditto.
649         (convert_to_eh_region_ranges): Ditto.
650         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
651         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
652         * gcc/tree-ssa-pre.c (do_pre): Ditto.
653         (execute_fre): Ditto.
654         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
655         (rest_of_handle_jump2): Ditto.
656         * gcc/tree-sra.c (tree_sra): Ditto.
657         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
658         (execute_mudflap_function_decls): Ditto.
659         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
660         (do_store_copy_prop): Ditto.
661         * gcc/ipa-prop.h (ipcp_driver): Ditto.
662         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
663         * gcc/tree-ssa-forwprop.c
664         (tree_ssa_forward_propagate_single_use_vars): Ditto.
665         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
666         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
667         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
668         (execute_late_warn_uninitialized): Ditto.
669         * gcc/rtl.h (cleanup_barriers): Ditto.
670         (split_all_insns_noflow): Ditto.
671         (purge_line_number_notes): Ditto.
672         (unshare_all_rtl): Ditto.
673         (remove_unnecessary_notes): Ditto.
674         (recompute_reg_usage): Ditto.
675         (variable_tracking_main): Ditto.
676         * gcc/integrate.c (emit_initial_value_sets): Ditto.
677         * gcc/integrate.h (emit_initial_value_sets): Ditto.
678         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
679         (execute_free_cfg_annotations): Ditto.
680         (execute_fixup_cfg): Ditto.
681         (execute_cleanup_cfg_pre_ipa): Ditto.
682         (execute_cleanup_cfg_post_optimizing): Ditto.
683         (execute_init_datastructures): Ditto.
684         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
685         * gcc/combine.c (rest_of_handle_combine): Ditto.
686         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
687         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
688         (rest_of_handle_reorder_blocks): Ditto.
689         (rest_of_handle_partition_blocks): Ditto.
690         * gcc/var-tracking.c (variable_tracking_main): Ditto.
691         * gcc/tree-profile.c (tree_profiling): Ditto.
692         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
693         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
694         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
695         (rest_of_handle_sched2): Ditto.
696         * gcc/basic-block.h (free_bb_insn): Ditto.
697         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
698         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
699         (remove_useless_stmts): Ditto.
700         (split_critical_edges): Ditto.
701         (execute_warn_function_return): Ditto.
702         (execute_warn_function_noreturn): Ditto.
703         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
704         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
705         * gcc/passes.c (execute_one_pass): Run additional
706         todos returned by execute function.
707         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
708         return a value.
709
710 2006-03-02  Richard Guenther  <rguenther@suse.de>
711
712         * tree-ssa-alias.c (find_used_portions): Consider taking
713         the address as making the variable not write-only.
714
715 2006-03-02  Nick Clifton  <nickc@redhat.com>
716
717         * config.gcc (default_use_cxa_atexit): Extend the description of
718         this configure variable.  Set its default value to "yes" for
719         Linux, NetBSD and ELF targets on the assumption that they will
720         use C libraries with the __cxa_atexit function.
721
722 2006-03-02  Ben Elliston  <bje@au.ibm.com>
723
724         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
725         parameter as unused to suppress a build warning.
726
727 2006-03-02  Ben Elliston  <bje@au.ibm.com>
728
729         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
730         config/dfp-bit.c.
731
732 2006-03-01  Roger Sayle  <roger@eyesopen.com>
733
734         PR other/26489
735         * gthr-posix.h (__gthrw2): Define to take three parameters, the
736         declared name, the weak reference name, and the typeof name.
737         (__gthrw): Avoid expanding the declared name suffix.
738         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
739
740 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
741
742         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
743         from DWARF 3.
744         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
745         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
746         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
747         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
748         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
749         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
750         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
751         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
752         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
753         DW_DS_leading_separate, DW_DS_trailing_separate): New.
754         (DW_END_default, DW_END_big, DW_END_little): New.
755         (DW_END_lo_user, DW_END_hi_user): Define.
756         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
757         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
758         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
759         DW_LANG_D): New.
760
761 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
762
763         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
764         Update all users.
765         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
766         Update all users.
767         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
768         Update all users.
769         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
770         Update all users.
771         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
772         to 'symbol_mem_tag'.
773         Update all users.
774         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
775         rename.
776
777 2006-03-01  Roger Sayle  <roger@eyesopen.com>
778
779         * builtins.c (fold_builtin_copysign): Delete unreachable code.
780
781 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
782
783         PR target/25761
784         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
785         MACHO_DYNAMIC_NO_PIC_P.
786         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
787
788 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
789
790         PR target/26389
791         * config/darwin-protos.h (darwin_asm_output_anchor):
792         Declare.
793         * config/darwin-sections.def (cstring_section):
794         Add SECTION_MERGE to the flags.
795         (literal4_section): Likewise.
796         (literal8_section): Likewise.
797         (objc_selector_refs_section): Likewise.
798         (objc_cls_refs_section): Likewise.
799         * config/darwin.c (darwin_asm_output_anchor): New
800         function.
801         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
802
803 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
804
805         Fix PR tree-optimization/26443
806         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
807         to todo and PROP_tmt_usage to properties_destroyed.
808         * tree-ssa-ccp.c (pass_ccp): Ditto.
809         (pass_store_ccp): Ditto.
810         * tree-ssa-dom.c (pass_dominator): Ditto.
811
812 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
813
814         * tree-ssa-operands.c: Cleanup whitespace.
815         (get_asm_expr_operands): Move before first invocation.
816         (get_indirect_ref_operands): Likewise.
817         (get_tmr_operands): Likewise.
818         (get_call_expr_operands): Likewise.
819         (append_def): Likewise.
820         (append_use): Likewise.
821         (append_v_may_def): Likewise.
822         (append_v_must_def): Likewise.
823         (add_call_clobber_ops): Likewise.
824         (add_call_read_ops): Likewise.
825         (add_stmt_operand): Likewise.
826         (add_virtual_operand): Likewise.
827         (build_ssa_operands): Likewise.
828
829 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
830
831         PR middle-end/26022
832         Revert:
833         PR middle-end/24437
834         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
835         with a call expr to ...
836         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
837
838 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
839
840         * tree-vrp.c (extract_range_from_assert): Remove special
841         handling for types with super-types.
842
843 2006-03-01  Ben Elliston  <bje@au.ibm.com>
844
845         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
846         and powerpc64-*-linux* configurations.
847         * config/t-dfprules: New file.
848
849         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
850         Compile dfp-bit.c from the source directory using -DWIDTH and
851         $DFP_CFLAGS to control the compilation of that file, rather than
852         generating width-specific versions in the build directory.
853         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
854         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
855
856 2006-02-28  Zack Weinberg  <zackw@panix.com>
857
858         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
859         continues to work.
860
861 2006-02-28  Eric Christopher  <echristo@apple.com>
862
863         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
864         Set up IN_LIBGCC definition of TARGET_64BIT.
865         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
866
867 2006-02-28  Roger Sayle  <roger@eyesopen.com>
868
869         PR middle-end/14752
870         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
871         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
872         cases via the construction of "expr != 0".
873
874 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
875
876         * alias.c (alias_invariant, alias_invariant_size): Remove.
877         (record_base_value): Remove.
878         (memrefs_conflict_p): Don't look at alias_invariant.
879         (end_alias_analysis): Don't free it.
880         * alias.h (record_base_value): Remove prototype.
881
882 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
883             Adam Nemet  <anemet@caviumnetworks.com>
884
885         * rtl.h (truncated_to_mode): Declare it.
886         (struct rtl_hooks): Add reg_truncated_to_mode hook.
887         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
888         (RTL_HOOKS_INITIALIZER): Include it.
889         * rtlhooks.c (reg_truncated_to_mode_general): New function.
890         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
891         reg_truncated_to_mode.
892         * rtlanal.c (truncated_to_mode): Define it.
893         * simplify-rtx.c (simplify_unary_operation_1): Use it.
894
895 2006-02-28  Jeff Law  <law@redhat.com>
896
897         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
898         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
899         the range allowed by TYPE_PRECISION.
900
901         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
902
903 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
904
905         PR tree-optimization/26419
906         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
907         values of n.
908
909 2006-02-27  Zack Weinberg  <zackw@panix.com>
910
911         * doc/md.texi: Fix typo in previous change.
912
913 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
914
915         * df.c: Remove.
916
917 2006-02-27  Zack Weinberg  <zackw@panix.com>
918
919         * rtl.def (define_constraint, define_register_constraint)
920         (define_memory_constraint, define_address_constraint): New MD forms.
921         * gensupport.c (process_rtx): Put define_constraint etc on the
922         predicate queue.
923         * genpreds.c (process_define_predicate): Adjust comment.  Validate
924         the name, and call validate_exp to validate the expression.
925         (mark_mode_tests, write_extract_subexp): Can assume correct input.
926         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
927         all callers changed.
928         (validate_exp, needs_variable, struct constraint_data)
929         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
930         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
931         (const_dbl_constraints, constraint_max_namelen)
932         (have_register_constraints, have_memory_constraints)
933         (have_address_constraints, have_address_constraints)
934         (have_extra_constraints, have_const_int_constraints)
935         (have_const_dbl_constraints, mangle, add_constraint)
936         (process_define_constraint, process_define_register_constraint)
937         (write_enum_constraint_num, write_lookup_constraint)
938         (write_insn_constraint_len, write_regclass_for_constraint)
939         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
940         (write_insn_extra_memory_constraint)
941         (write_insn_extra_address_constraint)
942         (write_satisfies_constraint_fns): New.
943         (write_tm_preds_h): If we have new-style constraint definitions,
944         prototype the functions generated from them, and define the
945         old constraint interface (still used by generic code) in terms of
946         those functions.
947         (write_insn_preds_c): If we have new-style constraint definitions,
948         generate all relevant functions from those definitions.
949         (main): Handle define_constraint etc.
950         * genoutput.c (struct constraint_data, indep_constraints)
951         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
952         (mdep_constraint_len): New data structures and functions, defined
953         #ifdef USE_MD_CONSTRAINTS.
954         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
955         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
956         use new logic to validate operand constraints against constraint
957         definitions.
958         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
959         defined.
960         * defaults.h: If none of the old-style constraint macros are
961         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
962         old-style macros; and poison REG_CLASS_FROM_LETTER,
963         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
964         EXTRA_CONSTRAINT.
965         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
966         * doc/md.texi: Document new constraint-definition mechanism and the
967         C interface it provides.  Remove references to old mechanism
968         elsewhere in the document.
969         (Machine Constraints): Use pathnames relative to gcc directory,
970         i.e. config/ARCH/FILE.  Change i386 section to refer to
971         config/i386/predicates.md; update that section to match docstrings.
972         * doc/tm.texi: Move all documentation of the old constraint-
973         definition macros to their own section, clearly mark as obsolete.
974
975         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
976         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
977         definitions.
978         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
979         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
980         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
981         constraint strings.
982         (splits and peepholes): Use satisfies_constraint_*.
983         * config/i386/i386.c (memory_address_length)
984         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
985
986 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
987
988         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
989         scalar operation to be put back into the loop.
990
991 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
992
993         PR other/26208
994         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
995         (extract_cie_info): Handle S flag in augmentation string.
996         (execute_cfa_program): If context->signal_frame, execute also
997         fs->pc == context->ra instructions.
998         (uw_frame_state_for): If context->signal_frame, don't subtract one
999         from context->ra to find FDE.
1000         (uw_update_context_1): Set context->signal_frame to
1001         fs->signal_frame.
1002         (_Unwind_GetIPInfo): New function.
1003         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
1004         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
1005         of _Unwind_GetIP.
1006         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
1007         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
1008         * unwind-compat.c (_Unwind_GetIPInfo): New function.
1009         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
1010         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
1011         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
1012         * config/i386/linux-unwind.h (x86_fallback_frame_state,
1013         x86_64_fallback_frame_state): Set fs->signal_frame.
1014         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
1015         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
1016         (frob_update_context): Likewise.  Workaround missing S flag in
1017         Linux 2.6.12 - 2.6.16 kernel vDSOs.
1018         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
1019         Remove the psw_addr + 1 hack.
1020
1021 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1022
1023         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
1024         with aggregates here.
1025         (find_func_aliases): Remove code for &<aggregate> from here.
1026
1027 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1028
1029         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
1030         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
1031         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
1032         as (X & C) ne/eq 0.
1033
1034 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1035
1036         PR middle-end/19983
1037         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1038
1039 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1040
1041         * opts.c (decode_options): Do not handle flag_strength_reduce.
1042         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1043         and OPT_fstrength_reduce.
1044         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1045         flag_prefetch_loop_arrays for being nonzero.
1046         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1047         no-ops.
1048         (fprefetch-loop-arrays-rtl): Removed.
1049         (flag_prefetch_loop_arrays): Do not specify the value.
1050
1051         * doc/passes.texi: Update documentation of loop optimizer
1052         passes.
1053         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1054         -frerun-loop-opt): Remove.
1055
1056 2006-02-26  Richard Guenther  <rguenther@suse.de>
1057
1058         PR tree-optimization/26421
1059         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1060         in function calls that are ADDR_EXPRs as using the whole structure.
1061
1062 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1063
1064         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1065         * tree-pass.h (pass_loop_optimize): Remove.
1066         * passes.c (pass_loop_optimize): Never run it.
1067         * toplev.c (backend_init): Don't call init_loop.
1068         * opts.c (flag_loop_optimize_set): Remove.
1069         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1070         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1071         the old RTL loop optimizer when profiling enabled.
1072         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1073         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1074         pre-headers for the sake of the old RTL loop optimizer.
1075         * Makefile.in: Remove all references to loop.o.
1076
1077         * doc/invoke.texi: Remove all references to -floop-optimize
1078         and -frerun-loop-opt.
1079
1080 2006-02-26  Zack Weinberg  <zackw@panix.com>
1081
1082         * doc/md.texi (Machine Constraints): Refer to all files with paths
1083         relative to gcc directory (i.e. config/CPU/file).  Add missing
1084         @table @code ... @end table to M32C subsection.
1085
1086 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1087
1088         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1089         (X & 1) == 0.
1090         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1091
1092 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1093             James A. Morrison  <phython@gcc.gnu.org>
1094
1095         PR middle-end/21137
1096         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1097         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1098         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1099         signedness of the shift operation.
1100
1101 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1102
1103         PR tree-optimization/26359
1104         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1105
1106 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1107
1108         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1109         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1110         as X == 0, and some symmetry related transformations.
1111         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1112
1113 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1114
1115         PR middle-end/23673
1116         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1117         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1118         symmetry related transformations.  Fold (X^C1) == C2 as
1119         X == (C1^C2).
1120
1121 2006-02-25  Juergen Weigert  <jw@suse.de>
1122         Richard Guenther  <rguenther@suse.de>
1123
1124         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1125
1126 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1127
1128         * combine.c (gen_lowpart_or_truncate): Call
1129         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1130
1131 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1132
1133         * doc/invoke.texi: Move -fopenmp description to "Options for
1134         Code Generation".
1135         Remove reference to -lgomp.
1136
1137 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1138
1139         * doc/install.texi: Require GNU tar version 1.14.
1140
1141 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1142
1143         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1144         * doc/invoke.texi (C++ Dialect Options): Document
1145         -fno-use-cxa-get-exception-ptr.
1146         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1147         * configure: Regenerate.
1148         * c.opt (fuse-cxa-get-exception-ptr): New.
1149         * c-opts.c (c_common_handle_option): Handle
1150         OPT_fuse_cxa_get_exception_ptr.
1151         * c-common.c (flag_use_cxa_atexit): Update documentation.
1152         (flag_use_cxa_get_exception_ptr): New.
1153         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1154         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1155         documentation.
1156         (C_COMMON_OVERRIDE_OPTIONS): New.
1157
1158 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1159
1160         PR middle-end/24952
1161         * combine.c (try_combine): Explicitly check whether GET_CODE is
1162         a SET or a CLOBBER, instead on checking that it isn't a USE.
1163
1164 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1165
1166         * fold-const.c (fold_comparison): New subroutine of fold_binary
1167         containing transformations common to both the equality and
1168         ordering relational operators, factored out of fold_binary.
1169         (fold_binary): Separate out the equality operators (EQ_EXPR
1170         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1171         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1172         transformations common to both.
1173         (fold_div_compare): Fix latent bugs in the previously unreachable
1174         LT_EXPR and GE_EXPR cases.
1175
1176 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1177
1178         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1179         decl libname for clog to __clog on AIX.
1180
1181         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1182
1183 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1184
1185         PR target/26453
1186         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1187         output traceback table for thunks.  Localise rs6000_stack_info call.
1188
1189 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1190             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1191
1192         * gthr-posix.h (__gthrw): Fix typo in comment.
1193
1194 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1195
1196         * doc/cpp.texi (Character sets): Document that we do support
1197         input files to be in any character set.
1198
1199 2006-02-23  Jeff Law  <law@redhat.com>
1200
1201         * tree.h (PHI_ARG_NONZERO): Remove.
1202         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1203         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1204         node to the new node.
1205
1206         PR tree-optimization/26425
1207         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1208         min/max, then assume its varying.
1209
1210 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1211
1212         PR rtl-optimization/26316
1213         * rtlanal.c (enum may_trap_p_flags): New.
1214         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1215         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1216         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1217         (may_trap_after_code_motion_p): New function.
1218         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1219         (find_invariant_insn): Use may_trap_after_code_motion_p.
1220         * rtl.h (may_trap_after_code_motion_p): Declare.
1221
1222 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1223
1224         * emit-rtl.c (immed_double_const): Cleanup.
1225
1226 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1227
1228         Fix PR tree-optimization/26376
1229         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1230         remove assert.
1231
1232 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1233
1234         PR middle-end/26412
1235         * gimplify.c (omp_add_variable): Guard variable size decl test with
1236         DECL_SIZE (decl) check.
1237
1238 2006-02-23  Richard Guenther  <rguenther@suse.de>
1239
1240         PR middle-end/26439
1241         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1242         like aggregate types.
1243
1244 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1245
1246         * configure.ac: Add --with{,out}-long-double-128 configure option.
1247         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1248         * configure: Rebuilt.
1249         * config.in: Rebuilt.
1250         * doc/install.texi (Options specification): Document
1251         --with-long-double-128.
1252
1253         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1254         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1255         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1256         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1257
1258 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1259
1260         * config/s390/s390.c (override_options): Handle
1261         TARGET_DEFAULT_LONG_DOUBLE_128.
1262
1263         * config/alpha/alpha.c (override_options): Handle
1264         TARGET_DEFAULT_LONG_DOUBLE_128.
1265
1266         * config/sparc/sparc.c (sparc_override_options): Handle
1267         TARGET_DEFAULT_LONG_DOUBLE_128.
1268
1269 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1270
1271         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1272         (real-install-headers-tar, real-install-headers-cpio)
1273         (real-install-headers-cp): New targets.
1274
1275 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1276
1277         * tree.h (variable_section): Delete.
1278         * varasm.c (variable_section): Delete.
1279
1280 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1281
1282         * install.texi: Add notes on install.texi2html.
1283         (Building in parallel): Do not use footnotes.
1284
1285 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1286
1287         PR libgomp/26234
1288         * doc/install.texi (Configuration): Document --disable-libgomp.
1289
1290 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1291
1292         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1293
1294 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1295
1296         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1297         (vec_extractv2df_0_sse): New.
1298
1299 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1300
1301         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1302         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1303         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1304         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1305         to the result of the expression.
1306         (def_cfa_1): Adjust.
1307         (frame_pointer_cfa_offset): Rename to...
1308         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1309         (convert_cfa_to_loc_list): Rename to...
1310         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1311         Pass it on to build_cfa_loc.
1312         (compute_frame_pointer_to_cfa_displacement): Rename to...
1313         (compute_frame_pointer_to_fb_displacement): ... this.  New
1314         offset parameter.  Use it in computation.
1315         (gen_subprogram_die): Compute cfa_fb_offset with the new
1316         macro, and use it to compute the fb loc list and the
1317         displacement.
1318
1319 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1320
1321         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1322         replaced with register_operand.
1323         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1324         non-DREG is expensive.
1325         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1326         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1327         involving memory.
1328
1329 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1330
1331         * doc/install.texi2html: Use set -e.
1332
1333 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1334
1335         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1336         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1337         * doc/invoke.texi (-fshared-data): Delete.
1338         * common.opt (fshared-data): Delete.
1339         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1340         (assemble_static_space): Remove #if 0 code.
1341         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1342         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1343         * config/cris/cris.h: Remove FIXME.
1344
1345 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1346
1347         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1348         hooks.
1349
1350 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1351
1352         PR middle-end/26379
1353         * combine.c (simplify_shift_const_1): Disable nested shifts
1354         optimization for vector shifts.
1355
1356 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1357
1358         PR tree-optimization/26361
1359         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1360         of unsigned integer types.
1361
1362 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1363
1364         * tree-chrec.c (eq_evolutions_p): New.
1365         * tree-chrec.h (eq_evolutions_p): Declared.
1366         * tree-data-ref.c: Fix formatting.
1367         (datadep_stats, dependence_stats): New.
1368         (gcd): Moved...
1369         (print_direction_vector): New.
1370         (dump_data_dependence_relation): Use print_direction_vector.
1371         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1372         (compute_subscript_distance): Static.
1373         (initialize_data_dependence_relation): Static.  Get the number
1374         of loops surrounding the references from the callers, and initialize
1375         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1376         base_object_differ_p analyzers.
1377         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1378         compute_overlap_steps_for_affine_1_2,
1379         analyze_subscript_affine_affine): Count the classified dependences.
1380         Print a message when a test failed.
1381         (can_use_analyze_subscript_affine_affine): New.
1382         (analyze_siv_subscript): Compute the data dependences on symbolic
1383         scevs that verify can_use_analyze_subscript_affine_affine.
1384         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1385         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1386         Handle symbolic scevs.
1387         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1388         analyzed.
1389         (subscript_dependence_tester): Moved...
1390         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1391         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1392         DDR_SIZE_VECT instead of getting it in parameter.
1393         (subscript_dependence_tester): ... here.  Take as a parameter
1394         loop_nest_depth.  Call build_classic_dist_vector and
1395         build_classic_dir_vector.
1396         (compute_affine_dependence): Update subscript_dependence_tester
1397         parameters.  Update datadep_stats counters.  Call
1398         compute_subscript_distance.
1399         (compute_self_dependence): Save the dist and dir vectors.  Call
1400         compute_subscript_distance.
1401         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1402         (compute_all_dependences): Reorder parameters as they were before
1403         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1404         compute_subscript_distance.  Update the use of
1405         compute_affine_dependence and initialize_data_dependence_relation.
1406         (find_data_references_in_loop): Handle COMPONENT_REF.
1407         (compute_data_dependences_for_loop): Initialize dependence_stats.
1408         Don't call build_classic_dist_vector and build_classic_dir_vector.
1409         Update the parameters of initialize_data_dependence_relation and
1410         compute_all_dependences.  Print the statistics from datadep_stats.
1411         (analyze_all_data_dependences): Static.  Not used until the pass for
1412         checking the data dependences is contributed.
1413         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1414         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1415         (initialize_data_dependence_relation, compute_affine_dependence,
1416         analyze_all_data_dependences, compute_subscript_distance): Removed.
1417         (print_direction_vector): New.
1418         * lambda.h (gcd): ... here.
1419         (lambda_vector_gcd): Moved here from gcd_vector.
1420         * lambda-code.c (gcd, gcd_vector): Removed.
1421         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1422         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1423
1424 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1425
1426         * ipa-type-escape.c: Tidy some comments and white space.
1427         * tree-ssa-operands.c: Likewise.
1428
1429 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1430
1431         PR tree-opt/25879
1432         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1433         (dump_decl_name): Do not walk the decl tree chains.
1434         * tree-pass.h (TDF_CHAIN): Remove.
1435
1436 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1437
1438         * Makefile.in (C): Remove
1439         (PROTO): Remove
1440         (.PHONY): Remove C and PROTO
1441
1442 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1443
1444         PR middle-end/26236
1445         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1446         deprecated CHAR_TYPE tree code.
1447
1448 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1449
1450         * configure.ac (target_list): Add install-info, dvi, html.
1451         * configure: Regenerate.
1452
1453         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1454         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1455         treelang/Make-lang.in: Do not use double-colon rules.
1456
1457 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1458
1459         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1460         (TMT_USED_ALONE): New macro.
1461         * tree-pass.h (PROP_tmt_usage): New property.
1462         (TODO_update_tmt_usage): New todo.
1463         * tree-ssa-alias.c (updating_used_alone): New variable.
1464         (recalculate_used_alone): New function.
1465         (compute_may_aliases): Set updating_used_alone, call
1466         recalculate_used_alone.
1467         * tree-sra.c (pass_sra): Note that this pass destroys
1468         PROP_tmt_usage, and add TODO_update_tmt_usage.
1469         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1470         * tree-flow.h (updating_used_alone): Prototype.
1471         (recalculate_used_alone): Ditto.
1472         * passes.c (execute_todo): Add code to set updating_used_alone,
1473         and call recalculate.
1474         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1475         for clobber if used alone, and add assert to verify used_alone
1476         status.
1477
1478 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1479
1480         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1481         for non tls symbols added.
1482         (legitimize_address): Do nothing for PLUS expressions if one of the
1483         addends is a tls symbol reference.
1484
1485 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1486
1487         PR bootstrap/25476
1488
1489         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1490
1491         * Makefile.in (BOOTSTRAPPING): New.
1492         (quickstrap): New definition if BOOTSTRAPPING=yes.
1493
1494         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1495         * configure.ac: Substitute all_selected_languages with the languages
1496         that were configured.  For all the other variables except
1497         lang_specs_files, include all the languages in the tree.
1498         * configure: Regenerate.
1499
1500         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1501         if there is one.  Run the commands to run fixincludes in the same
1502         subshell.
1503
1504         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1505         * doc/install.texi: Document exact conventions for searching target tools.
1506         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1507         something more about building an Ada cross-compiler.  Don't list GNU Make
1508         requirements which affect all platforms.
1509
1510 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1511
1512         PR middle-end/19543
1513         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1514         only equivalent if the have both the same mode and precision.
1515
1516 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1517
1518         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1519
1520 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1521             Steven Bosscher  <stevenb.gcc@gmail.com>
1522
1523         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1524         constant pool references to identify stack mode constants.
1525         * rtlanal.c (constant_pool_constant_p): New predicate to check
1526         whether operand is a floating point constant in the pool.
1527         * rtl.h (constant_pool_constant_p): Prototype here.
1528         * loop.c (scan_loop): Avoid hoisting constants from the constant
1529         pool on STACK_REGS targets.
1530         (load_mems): Likewise.
1531         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1532         loads into x87 registers expensive in terms of register pressure.
1533
1534 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1535
1536         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1537         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1538
1539 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1540
1541         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1542         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1543
1544 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1545
1546         * doc/invoke.texi: Document -fipa-pta.
1547         * common.opt: Add ipa-pta option.
1548         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1549         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1550         (do_ds_constraint): Ditto.
1551         (get_constraint_for): Only add to referenced_vars if
1552         referenced_vars exists.
1553         (insert_into_field_list): Rewrite to do this unsorted.
1554         (insert_into_field_list_sorted): Rename old insert_into_field_list
1555         to this.
1556         (create_function_info_for): Use insert_into_field_list_sorted.
1557         (create_variable_info_for): Rewrite so it uses unsorted version,
1558         since the field list is sorted.
1559         (intra_create_variable_infos): Only add to referenced_vars if
1560         referenced_vars exists.
1561         (ipa_pta_execute): Init heapvars, and delete when done.
1562         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1563
1564 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1565
1566         * doc/install.texi: Add missing `@samp'.
1567
1568 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1569
1570         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1571         Use the arguments.
1572
1573 2006-02-18  Mark Wielaard  <mark@klomp.org>
1574
1575         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1576         who added new 4.1 features, bug fixes and integration support.
1577
1578 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1579
1580         PR target/26350
1581         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1582         MEM for ABI_V4 pic.
1583
1584 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1585
1586         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1587         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1588         (copy_insn_1): Likewise.  Don't copy each field individually.
1589         Reindent.
1590         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1591         of RTX_SIZE.
1592         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1593         * rtl.c (rtx_size): Rename variable to...
1594         (rtx_code_size): ...this.
1595         (rtx_size): New function.
1596         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1597         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1598         Reindent.
1599         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1600         * rtl.h (rtx_code_size): New variable.
1601         (rtx_size): Change from a variable to a function.
1602         (RTX_SIZE): Rename to...
1603         (RTX_CODE_SIZE): ...this.
1604
1605         PR target/9703
1606         PR tree-optimization/17106
1607         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1608         (Anchored Addresses): New section.
1609         * doc/invoke.texi (-fsection-anchors): Document.
1610         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1611         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1612         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1613         * hooks.c (hook_bool_mode_rtx_false): New function.
1614         * hooks.h (hook_bool_mode_rtx_false): Declare.
1615         * gengtype.c (create_optional_field): New function.
1616         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1617         SYMBOL_REF_IN_BLOCK_P is true.
1618         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1619         (min_anchor_offset, max_anchor_offset): Likewise.
1620         (use_anchors_for_symbol_p): New hook.
1621         * toplev.c (compile_file): Call output_object_blocks.
1622         (target_supports_section_anchors_p): New function.
1623         (process_options): Check that -fsection-anchors is only used on
1624         targets that support it and when -funit-at-a-time is in effect.
1625         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1626         if the decl doesn't have one.
1627         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1628         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1629         of force_const_mem through use_anchored_address.
1630         (expand_expr_constant): New function.
1631         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1632         calling expand_expr for INDIRECT_REF.
1633         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1634         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1635         * expr.h (use_anchored_address): Declare.
1636         * loop-unroll.c: Don't declare rtx vectors here.
1637         * explow.c: Include output.h.
1638         (validize_mem): Call use_anchored_address.
1639         (use_anchored_address): New function.
1640         * common.opt (-fsection-anchors): New switch.
1641         * varasm.c (object_block_htab, anchor_labelno): New variables.
1642         (hash_section, object_block_entry_eq, object_block_entry_hash)
1643         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1644         (use_blocks_for_decl_p, change_symbol_section): New functions.
1645         (get_variable_section): New function, split out from assemble_variable.
1646         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1647         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1648         symbol has already been created.
1649         (assemble_variable_contents): New function, split out from...
1650         (assemble_variable): ...here.  Don't output any code for
1651         block symbols; just pass them to place_block_symbol.
1652         Use get_variable_section and assemble_variable_contents.
1653         (get_constant_alignment, get_constant_section, get_constant_size): New
1654         functions, split from output_constant_def_contents.
1655         (build_constant_desc): Create a block symbol if use_object_blocks_p
1656         says so.  Or into SYMBOL_REF_FLAGS.
1657         (assemble_constant_contents): New function, split from...
1658         (output_constant_def_contents): ...here.  Don't output any code
1659         for block symbols; just pass them to place_section_symbol.
1660         Use get_constant_section and get_constant_alignment.
1661         (force_const_mem): Create a block symbol if use_object_blocks_p and
1662         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1663         (output_constant_pool_1): Add an explicit alignment argument.
1664         Don't switch sections here.
1665         (output_constant_pool): Adjust call to output_constant_pool_1.
1666         Switch sections here instead.  Don't output anything for block symbols;
1667         just pass them to place_block_symbol.
1668         (init_varasm_once): Initialize object_block_htab.
1669         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1670         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1671         (place_block_symbol, get_section_anchor, output_object_block)
1672         (output_object_block_htab, output_object_blocks): New functions.
1673         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1674         (TARGET_ASM_OUT): Include it.
1675         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1676         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1677         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1678         (TARGET_INITIALIZER): Include them.
1679         * rtl.c (rtl_check_failed_block_symbol): New function.
1680         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1681         (block_symbol, object_block): New structures.
1682         (rtx_def): Add a block_symbol field to the union.
1683         (BLOCK_SYMBOL_CHECK): New macro.
1684         (rtl_check_failed_block_symbol): Declare.
1685         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1686         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1687         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1688         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1689         * output.h (output_section_symbols): Declare.
1690         (object_block): Name structure.
1691         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1692         (default_use_anchors_for_symbol_p): Declare.
1693         * Makefile.in (RTL_BASE_H): Add vec.h.
1694         (explow.o): Depend on output.h.
1695         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1696         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1697         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1698         (rs6000_use_blocks_for_constant_p): New function.
1699
1700 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1701
1702         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1703
1704 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1705
1706         PR tree-opt/25680
1707         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1708         IMAGPART_EXPR.
1709
1710 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1711
1712         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1713         is_aliased.
1714         Update all users.
1715
1716 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1717
1718         PR middle-end/26334
1719         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1720         instead of DECL_REGISTER.
1721
1722 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1723
1724         PR ada/13408
1725         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1726
1727 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1728
1729         PR target/24837
1730         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1731         * opth-gen.awk: Handle Var and InverseMask together.
1732         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1733         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1734         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1735         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1736         used together.
1737         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1738         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1739         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1740         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1741         LINUX_DYNAMIC_LINKER): Define.
1742         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1743         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1744         TARGET_GLIBC.
1745         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1746         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1747         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1748         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1749         (TARGET_C99_FUNCTIONS): Don't define.
1750         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1751         GLIBC_DYNAMIC_LINKER.
1752         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1753         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1754         GLIBC_DYNAMIC_LINKER64): Define.
1755         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1756         LINUX_DYNAMIC_LINKER64.
1757         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1758         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1759         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1760         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1761         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1762         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1763         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1764         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1765         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1766         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1767         and LINUX_DYNAMIC_LINKER32.
1768         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1769         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1770         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1771         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1772         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1773         TARGET_GLIBC.
1774         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1775         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1776         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1777         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1778         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1779         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1780         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1781         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1782         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1783         LINUX_DYNAMIC_LINKER): Define.
1784         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1785         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1786         GLIBC_DYNAMIC_LINKER64): Define.
1787         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1788         LINUX_DYNAMIC_LINKER64.
1789         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1790         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1791         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1792         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1793         LINUX_DYNAMIC_LINKER): Define.
1794         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1795         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1796         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1797         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1798         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1799         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1800         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1801         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1802         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1803         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1804         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1805         * doc/invoke.texi (-muclibc): Remove caveat about supported
1806         targets.
1807
1808 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1809
1810         * doc/cpp.texi (__TIMESTAMP__): Document.
1811
1812 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1813
1814         PR middle-end/25600
1815         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1816         C is one less than the width of X (and related transformations).
1817         * simplify-rtx.c (simplify_unary_operation_1): Transform
1818         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1819         depending on STORE_FLAG_VALUE, were C is one less then the
1820         width of X.
1821
1822 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1823
1824         Fix PR tree-optimization/26341
1825         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1826         about NAME_MEMORY_TAG's.
1827
1828 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1829
1830         PR target/26255
1831         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1832         with hardware float support, and software float support.  Add fcpy
1833         alternative to hardware patterns.  Add alternatives to copy between
1834         general and floating-point registers to the 32-bit pattern.
1835         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1836         secondary reload to load a QI or HI mode constant into a floating
1837         point register.
1838         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1839         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1840
1841 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1842
1843         PR target/26272
1844         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1845         pc to the pattern.
1846         (load_macho_picbase_di): Likewise.
1847
1848 2006-02-16  Jeff Law  <law@redhat.com>
1849
1850         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1851         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1852         (ssa_name_nonzero_p): Likewise.
1853         (get_value_range): Return NULL if VRP is not running.
1854         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1855         VRP routines do not discover a range.
1856         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1857         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1858         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1859         (tree_expr_nonnegative_p): Similarly.
1860         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1861         (restore_nonzero_vars_to_original_value): Remove.
1862         (unsafe_associative_fp_binop): Remove.
1863         (tree_ssa_dominator_optimize): Remove initialization and
1864         finalization of nonzero_vars and nonzero_vars_stack.
1865         (dom_opt_initialize_block): No longer push marker on
1866         nonzero_vars_stack.
1867         (dom_opt_finalize_block): No longer call
1868         restore_nonzero_vars_to_original_value.
1869         (record_equivalences_from_phis): No longer look for
1870         nonzero PHI arguments.
1871         (cprop_into_successor_phis): No longer propagate nonzero
1872         property into PHI arguments.  Lose unused argument.  Caller
1873         updated.
1874         (record_equivalences_from_stmt): No longer record nonzero
1875         values for SSA_NAMEs.
1876         (lookup_avail_expr): No longer use nonzero_vars.
1877
1878         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1879         for sizetype when sizetype is unsigned.
1880
1881 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1882
1883         PR rtl-optimization/25603
1884         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1885         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1886         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1887         with new meaning of SETS.
1888
1889 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1890
1891         PR target/20353
1892         PR target/24578
1893         PR target/24837
1894         * config/linux.opt: New file.
1895         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1896         LINUX_DYNAMIC_LINKER): Define.
1897         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1898         * config.gcc (*-*-linux*): Define extra_options.
1899         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1900         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1901         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1902         GLIBC_DYNAMIC_LINKER.
1903         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1904         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1905         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1906         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1907         * doc/invoke.texi (GNU/Linux Options): New section.
1908
1909 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1910
1911         * config/sparc/sparc.md (setjmp): Rewrite.
1912         (setjmp_32): Delete.
1913         (setjmp_64): Likewise.
1914
1915 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1916
1917         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1918          previous change.
1919
1920 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1921
1922         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1923         read-write uses.
1924
1925 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1926
1927         PR rtl-optimization/26296
1928         * Makefile.in (loop-invariant.c): Add except.h dependency.
1929         * loop-invariant.c: Include except.h.
1930         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1931
1932 2005-02-16  Paul Brook  <paul@codesourcery.com>
1933
1934         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1935         for reloads.
1936
1937 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1938
1939         PR rtl-optimization/25636
1940         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1941         when deciding whether an insn is an initializing insn.
1942
1943 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1944
1945         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1946         (tree_code_size): Ditto.
1947         * tree.h (struct tree_memory_tag): Remove parent_var.
1948         (struct tree_struct_field_tag): New.
1949         (SFT_OFFSET): New.
1950         (SFT_SIZE): New.
1951         (union tree_node): Add sft member.
1952         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1953         specially here.
1954         (create_sft): Add size and offset argument, set SFT_OFFSET and
1955         SFT_SIZE.
1956         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1957         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1958         * tree-flow-inline.h (get_subvar_at): Update for
1959         SFT_OFFSET/SFT_SIZE.
1960         (var_can_have_subvars): Ditto.
1961         (overlap_subvar): Ditto.
1962         * print-tree.c (print_node): Print out interesting things for
1963         SFT's.
1964         * tree-flow.h (struct subvar): Remove offset and size members.
1965         * tree-ssa-operands.c (get_expr_operands): Update for
1966         get_indirect_ref_operands changes.
1967         (get_indirect_ref_operands): Call add_virtual_operand instead of
1968         add_stmt_operand.  Only recurse on base var if requested.
1969         (access_can_touch_variable): New function.
1970         (add_stmt_operand): Split virtual operand handling into ...
1971         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1972         arguments.  Prune alias sets.
1973         (add_call_clobber_ops): Call add_virtual_operand.
1974
1975 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1976
1977         PR middle-end/26300
1978         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1979
1980         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1981         than TREE_CODE as index into omp_clause_num_ops array.
1982
1983 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1984
1985         PR rtl-optimization/26184
1986         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1987         uses_of_defs.
1988         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1989         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1990         must_precede, must_follow and tobe_scheduled.
1991
1992         PR other/26147
1993         * opts.c (common_handle_option): Free new_option pointer.
1994         * df-core.c (df_analyze): Free postorder pointer.
1995
1996 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1997
1998         * Makefile.in: Fix the examples about the use of stamps
1999
2000 2006-02-15  Michael Matz  <matz@suse.de>
2001
2002         PR middle-end/22275
2003
2004         * stor-layout.c (layout_decl): Zero-width bitfields aren't
2005         influenced by maximum_field_alignment or DECL_PACKED.
2006         (update_alignment_for_field): Ditto.
2007         (place_field): Ditto.
2008         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
2009         this behaviour.
2010
2011 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
2012
2013         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
2014         (debug_flow_info): Pass it.
2015         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
2016         * bb-reorder.c (reorder_basic_blocks): Likewise.
2017         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
2018         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
2019         * flow.c (life_analysis, recompute_reg_usage): Likewise.
2020         * gcse.c (gcse_main, bypass_jumps): Likewise.
2021         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
2022         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
2023         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
2024         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
2025         * rtl.h (dump_flow_info): Adjust prototype.
2026         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
2027         * var-tracking.c (variable_tracking_main): Likewise.
2028         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
2029         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
2030         options.
2031
2032 2006-02-15  Marcin Dalecki <martin@dalecki.de>
2033
2034         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
2035         construction.
2036
2037 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2038
2039         PR tree-optimization/26209
2040         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2041         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2042         eh edges.
2043         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2044
2045 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2046
2047         PR middle-end/23670
2048         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2049         (X,Y) and the corresponding symmetry related transformations.
2050         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2051         (X,Y) and its symmetry related transformations.
2052
2053 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2054
2055         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2056         and GEU.
2057
2058 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2059
2060         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2061
2062 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2063
2064         PR bootstrap/26053
2065         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2066         support COMDAT group.
2067         * configure: Regenerate.
2068
2069 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2070
2071         PR middle-end/26279
2072         PR middle-end/26280
2073         PR middle-end/26283
2074         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2075
2076 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2077
2078         Fix PR tree-optimization/26260
2079
2080         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2081         param.
2082         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2083         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2084         * tree-ssa-structalias.c (create_variable_info_for): Use
2085         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2086
2087 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2088
2089         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2090         Document.
2091         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2092         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2093         of the ending condition.
2094         * tree-ssa-loop-manip.c: Include params.h.
2095         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2096         tree_unroll_loop): New functions.
2097         * tree-pass.h (pass_loop_prefetch): Declare.
2098         * loop.c (rest_of_handle_loop_optimize): Test for
2099         -fprefetch-loop-arrays-rtl.
2100         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2101         * timevar.def (TV_TREE_PREFETCH): New timevar.
2102         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2103         pass_loop_prefetch): New.
2104         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2105         (cleanup_tree_cfg_loop): Call scev_reset.
2106         * common.opt (fprefetch-loop-arrays-rtl): Add.
2107         * tree-ssa-loop-prefetch.c: New file.
2108         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2109         (new_temp_expr_table): Initialize expr_vars.
2110         (free_temp_expr_table): Cleanup expr_vars.
2111         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2112         expressions from being merged into one.
2113         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2114         (struct tree_niter_desc): Add control, bound and cmp fields.
2115         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2116         Declare.
2117         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2118         (tree-cfgcleanup.o): Add SCEV_H dependency.
2119         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2120         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2121
2122 2006-02-14  Richard Guenther  <rguenther@suse.de>
2123
2124         PR tree-optimization/26258
2125         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2126         in PHI argument processing.
2127
2128 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2129
2130         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2131         new expression in the requested machine mode.
2132
2133 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2134
2135         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2136         directly, instead let do_compare_rtx_and_jump handle this for us.
2137         * expr.c (expand_expr_real_1): Likewise.
2138         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2139         before do_jump_by_parts_greater.
2140         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2141         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2142
2143 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2144
2145         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2146
2147 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2148
2149         PR rtl-optimization/26235
2150         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2151         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2152         format.
2153
2154 2006-02-13  Jeff Law  <law@redhat.com>
2155
2156         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2157         TRUTH_XOR_EPR.
2158
2159 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2160
2161         PR middle-end/26092
2162         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2163         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2164         first to verify it is still a builtin.
2165
2166 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2167
2168         * dwarf2out.c (base_type_die): Don't add AT_name here.
2169         (subrange_type_die): Don't add AT_name here.
2170         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2171
2172 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2173
2174         PR rtl-optimization/26247
2175         PR rtl-optimization/26248
2176         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2177
2178 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2179
2180         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2181         * config/fixtfdi.c: Likewise.
2182         * config/fixunstfdi.c: Likewise.
2183         * config/floatditf.c: Likewise.
2184
2185 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2186
2187         PR middle-end/24427
2188         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2189         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2190         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2191         (X&(C1&~C2))|C2.
2192         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2193
2194 2006-02-13  Josh Conner  <jconner@apple.com>
2195
2196         PR target/25376
2197         * varasm.c (function_section): Check for section name before
2198         calling select_section on targets that define
2199         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2200         unlikely_text_section instead of hot_function_section if
2201         first_function_block_is_cold.
2202
2203 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2204
2205         PR middle-end/25335
2206         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2207
2208 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2209
2210         PR rtl-optimization/26222
2211         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2212         after tree->rtl expansion.
2213         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2214         before passing it to emit_move_insn.
2215
2216 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2217
2218         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2219         default.
2220         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2221         Clarify documentation.
2222         * c-common.h (warn_write_strings): Remove.
2223         * c-common.c (warn_write_strings): Likewise.
2224         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2225         default for C++.
2226
2227 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2228
2229         PR middle-end/25724
2230         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2231         (do_jump_parts_zero_rtx): New function renamed from
2232         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2233         (do_jump_parts_equality_rtx): New function split out from
2234         do_jump_parts_equality.  Old implementation renamed as above.
2235         Call do_jump_parts_zero_rtx if either operand is zero.
2236         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2237         do all of the heavy lifting.
2238         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2239         calling either do_jump_by_parts_greater_rtx or
2240         do_jump_by_parts_equality_rtx.
2241         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2242         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2243         moved to do_compare_rtx_and_jump, call it directly.
2244         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2245         mode argument.  Call do_compare_rtx_and_jump.
2246         (emit_case_nodes): Update calls to do_jump_if_equal.
2247
2248 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2249
2250         PR rtl-optimization/26225
2251         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2252
2253 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2254
2255         PR rtl-optimization/26232
2256         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2257
2258 2006-02-11  Jason Merrill  <jason@redhat.com>
2259
2260         PR tree-opt/24365
2261         * tree-inline.c (declare_return_variable): Just don't use the
2262         modify target if it's a gimple complex reg and the return slot
2263         isn't.
2264
2265 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2266
2267         * doc/contrib.texi: Update my entry.
2268
2269 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2270
2271         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2272
2273 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2274
2275         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2276         expensive.
2277
2278 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2279
2280         * doc/invoke.texi (-floop-optimize2): Removed.
2281         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2282         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2283         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2284         * common.opt (floop-optimize2): Removed.
2285         (fmove-loop-invariants): Enabled by default.
2286
2287 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2288
2289         * tree-if-conv.c (combine_blocks): Free the result of
2290         get_loop_exit_edges.
2291
2292 2006-02-10  Jeff Law  <law@redhat.com>
2293
2294         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2295
2296         PR tree-optimization/26213
2297         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2298         loop trying to follow SSA_NAME_VALUE chains.
2299
2300 2006-02-10  Richard Guenther  <rguenther@suse.de>
2301
2302         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2303         deal with structures that end in implicitly variable sized arrays.
2304
2305 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2306
2307         PR rtl-optimization/24762
2308         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2309         eh edges.
2310
2311 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2312
2313         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2314         (struct ivopts_data): Add regs_used field.
2315         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2316         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2317         instead of loop_data->regs_used;
2318         (free_loop_data): Do not free aux fields for loops.
2319         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2320         and tree_ssa_iv_optimize_finalize.
2321
2322 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2323
2324         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2325
2326 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2327
2328         PR target/26141
2329         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2330         computing the effective result type.
2331
2332 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2333
2334         PR inline-asm/16194
2335         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2336         (tree_overlaps_hard_reg_set): Declare.
2337         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2338         type and signature to match function type expected by walk_tree.
2339         (tree_overlaps_hard_reg_set): New function.
2340         (decl_conflicts_with_clobbers_p): Rename to:
2341         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2342         Use tree_overlaps_hard_reg_set.  Changed caller.
2343         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2344         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2345         * cris.c (cris_md_asm_clobbers): Likewise.
2346
2347 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2348
2349         * reload1.c (emit_input_reload_insns): Delete code that tries to
2350         inherit using find_equiv_reg.
2351
2352 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2353
2354         * c-common.h (flag_const_strings): Don't declare.
2355         * c-common.c (flag_const_strings): Remove.
2356         * c.opt (fconst_strings): Remove.
2357         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2358         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2359         (c_common_init_options): Don't set flag_const_strings.
2360         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2361
2362 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2363
2364         * arm.md (tlobits_cbranch): New pattern.
2365         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2366         testing a single bit.
2367
2368 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2369
2370         PR tree-opt/26179
2371         * tree-ssa-pre.c (create_component_ref_by_pieces):
2372         Handle RETURN_DECL like VAR_DECL.
2373
2374 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2375
2376         PR middle-end/26134
2377         * fold-const.c (fold_indirect_ref_1): Fold
2378         "*(foo *)&complexfoo" to "__real__ complexfoo"
2379         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2380
2381 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2382
2383         * tree-flow-inline.h (var_can_have_subvars):
2384         Volatile variables should not have subvariables.
2385
2386 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2387
2388         PR 26180
2389         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2390         multiplying unsigned values.
2391         Tidy comments.
2392
2393 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2394
2395         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2396
2397 2006-02-08  Jason Merrill  <jason@redhat.com>
2398
2399         PR c++/25979
2400         * tree.def: Elaborate on difference from MODIFY_EXPR.
2401         * doc/c-tree.texi (INIT_EXPR): Likewise.
2402         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2403         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2404         (gimplify_target_expr): Likewise.
2405         (gimplify_cond_expr): Remove target handling.
2406         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2407         (gimplify_expr): Clobber it here.
2408         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2409         Do return slot optimization if we have an INIT_EXPR.
2410
2411         PR tree-opt/24365
2412         * tree-inline.c (declare_return_variable): Also clear
2413         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2414
2415         PR c++/16405
2416         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2417
2418         PR middle-end/22439
2419         * gimplify.c (gimplify_one_sizepos): Fix typo.
2420
2421 2006-02-08  Jeff Law  <law@redhat.com>
2422
2423         PR tree-optimization/21417
2424         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2425         across a backedge if the control statement at the end of the
2426         block is data dependent on other statements in the same block.
2427         (record_temporary_equivalences_from_stmts): Remove over-conservative
2428         test for threading across backedges.
2429
2430         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2431         control statement, handle all three special cases in the same
2432         manner as they all have the same desired solution.  No longer
2433         special case edge flag updating when the post dominator is
2434         the exit block.
2435
2436 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2437
2438         * tree.def (CHAR_TYPE): Remove.
2439         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2440         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2441         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2442         (gen_string_type_die): Delete unreachable function.
2443
2444         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2445         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2446         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2447         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2448         * builtins.c (type_to_class): Likewise.
2449         * fold-const.c (fold_convert, build_range_check,
2450         merge_ranges): Likewise.
2451         * expr.c (count_type_elements): Likewise.
2452         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2453         * stor-layout.c (layout_type): Likewise.
2454         * ipa-type-escape.c (type_to_consider): Likewise.
2455         * gimplify.c (omp_firstprivatize_type_sizes,
2456         gimplify_type_sizes): Likewise.
2457         * explow.c (promote_mode): Likewise.
2458         * tree-sra.c (is_sra_scalar_type): Likewise.
2459         * varasm.c (output_constant): Likewise.
2460         * tree-inline.c (remap_type_1): Likewise.
2461         * convert.c (convert_to_pointer, convert_to_real,
2462         convert_to_integer, convert_to_complex): Likewise.
2463
2464 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2465
2466         * df-scan.c (df_def_record_1): A set destination may
2467         be a parallel regardless of mode.
2468
2469 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2470
2471         PR target/22209
2472         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2473         * config/mips/_tilib.c: Remove.
2474         * config/fixtfdi.c: New libgcc source file.
2475         * config/fixunstfdi.c: New source file.
2476         * config/floatditf.c: New source file.
2477         * config/floatunditf.c: New souce file.
2478         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2479         files above instead of config/mips/_tilib.c.
2480         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2481
2482 2006-02-08  Jeff Law  <law@redhat.com>
2483
2484         PR tree-optimization/26169
2485         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2486         threading jumps.
2487
2488 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2489
2490         * df.h (DF_REG_SIZE): Return the length of the initialized
2491         part of the array.
2492
2493 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2494
2495         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2496         __muldf3): Return a correctly signed zero.
2497
2498 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2499
2500         * passes.c (register_one_dump_file): Accept the current properties
2501         instead of pass number.  Adjust call to dump_register.  Remove
2502         duplicated code.
2503         (register_dump_files): Now a wrapper around...
2504         (register_dump_files_1): ... this one.  Do not modify the pass
2505         structure.
2506         (next_pass_1): Cosmetic fix.
2507         (execute_todo): Keep second parameter only.  Use curr_properties
2508         instead of fetching it from the pass structure.  Check and set
2509         last_verified.
2510         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2511         instead of fetching it from the pass structure.  Fix calls to
2512         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2513         after running the pass.  Reset last_verified.
2514         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2515         at the beginning.
2516         (FIRST_AUTO_NUMBERED_DUMP): New.
2517         (dump_register): Remove "num" parameter, assign it within the
2518         function.
2519         (get_dump_file_name): Modify template for dumps.
2520         * tree-dump.h (dump_register): Adjust prototype.
2521         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2522         (PROP_trees): Add PROP_gimple_lomp.
2523         (TODO_set_props): New.
2524         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2525         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2526         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2527
2528 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2529
2530         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2531         (sparc64-*-linux*): Likewise.
2532         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2533         * config/sparc/t-linux: New file.
2534         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2535         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2536         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2537         -m32 -mlong-double-128.
2538
2539         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2540         * config/alpha/t-linux: New file.
2541         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2542
2543         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2544         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2545         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2546         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2547         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2548         (CPP_ARCH32_SPEC): Remove.
2549
2550 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2551
2552         PR tree-optimization/26145
2553         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2554         bbs pointer.
2555
2556 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2557
2558         PR target/26109
2559         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2560         >= 240000 when generating code for SOM runtime.
2561         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2562         to $$dyncall when generating code for SOM runtime..
2563
2564 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2565
2566         PR c++/18150
2567         * doc/invoke.texi (-Wsequence-point): Update documentation
2568         that -Wsequence-point is implemented for C++ as well.
2569
2570 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2571
2572         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2573         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2574         (LIB_SPEC): Likewise.
2575         * doc/invoke.texi (SPARC options): Document -pthread.
2576
2577 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2578
2579         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2580         PIC addresses.
2581
2582 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2583
2584         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2585         Correct comment describing BOOLEAN_TYPE.
2586
2587 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2588
2589         * c.opt: C++ frontend supports -Wdiv-by-zero.
2590         * c-opts.c (c_common_handle_option): Remove dead case.
2591
2592 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2593
2594         * configure.ac (TLS assembler check): Do not enable TLS by
2595         default on SPARC/Solaris before version 10.
2596         * configure: Regenerate.
2597
2598 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2599
2600         * doc/invoke.texi (xl-compat): Document conversion and support
2601         routine names.
2602
2603 2006-02-07  Jeff Law  <law@redhat.com>
2604
2605         * tree-vrp.c (find_conditional_asserts): Update comments.
2606         (simplify_stmt_for_jump_threading): New.
2607         (identify_jump_threads, finalize_jump_threads): New.
2608         (vrp_finalize): Call identify_jump_threads.
2609         (execute_vrp): Call finalize_jump_threads.
2610         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2611         (vrp_element, vrp_data, vrp_element_p): Remove.
2612         (vrp_hash_elt, vrp_variables_stack): Remove.
2613         (vrp_hash, vrp_eq, record_range): Remove.
2614         (simplify_cond_and_lookup_avail_expr): Remove.
2615         (extract_range_from_cond): Remove.
2616         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2617         (simplify_stmt_for_jump_threading): New.
2618         (dom_thread_across_edge): New wrapper.
2619         (tree_ssa_dominator_optimize): No longer initialize or
2620         finalize any of the VRP datastructures.  Remove iteration
2621         step and simplify as a result of removal of iteration step.
2622         (pass_dominator): Perform a cfg cleanup after DOM.
2623         (dom_opt_finalize_block): Use the new common routines
2624         for threading jumps.  Simplify stack management slightly.
2625         No longer need to unwind VRP state.
2626         (record_equivalences_from_incoming_edge): No longer record
2627         VRP information.
2628         (eliminate_redundant_computations): No longer call
2629         simplify_cond_and_lookup_avail_expr.
2630         * tree-flow.h (potentially_threadable_block): Prototype.
2631         (thread_across_edge): Likewise.
2632         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2633         (tree-ssa-threadedge.o): Add dependencies.
2634         * tree-ssa-threadedge.c: New file.
2635         * passes.c (init_optimization_passes): Merge PHIs before
2636         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2637
2638 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2639
2640         * df-core.c (df_set_blocks): Do not dereference function pointers.
2641         (df_finish1): Likewise.
2642         (df_hybrid_search_forward): Likewise.
2643         (df_hybrid_search_backward): Likewise.
2644         (df_iterative_dataflow): Likewise.
2645         (df_analyze_problem): Likewise.
2646         (df_compact_blocks): Likewise.
2647         (df_dump): Likewise.
2648         * df-scan.c (df_rescan_blocks): Likewise.
2649         (df_record_entry_block_defs): Likewise.
2650
2651         * genconditions.c (write_conditions): Guard the definition of
2652         'insn_conditions' with the check on GCC version.
2653         (write_writer): Guard the traversal 'insn_conditions' with
2654         the check on GCC version.
2655
2656 2006-02-07  Richard Guenther  <rguenther@suse.de>
2657
2658         PR c++/26140
2659         Revert
2660         2006-01-30  Richard Guenther  <rguenther@suse.de>
2661         PR c++/23372
2662         * gimplify.c (gimplify_target_expr): Handle easy cases
2663         without creating a temporary.
2664
2665 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2666
2667         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2668         use of float in probability computations.  Use edge probabilities
2669         in place of statically computed probabilities.
2670         (min_spec_prob): New static variable.
2671         (schedule_insns): Initialize it.
2672         (GET_SRC_PROB): Removed.
2673         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2674
2675 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2676
2677         PR debug/24444
2678         * config/ia64/unwind-ia64.c: Revert last change.
2679         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2680         (INCOMING_FRAME_SP_OFFSET): Define.
2681
2682 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2683
2684         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2685
2686 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2687
2688         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2689         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2690         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2691         (ix86_return_in_memory): Handle TDmode.
2692         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2693         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2694
2695 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2696
2697         * reorg.c (dbr_schedule): Use dump_file instead of file.
2698
2699 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2700
2701         PR target/25917
2702         * config/ia64/predicates.md (extr_len_operand): New predicate.
2703         * config/ia64/ia64.md (extv): Tighten constraints.
2704         (extzv): Ditto.
2705         (*tbit_and_2): Ditto.
2706         (*tbit_and_3): Ditto.
2707         (*tbit_or_2): Ditto.
2708         (*tbit_or_3): Ditto.
2709         (*bit_zero): Ditto.
2710         (*bit_one): Ditto.
2711
2712 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2713
2714         PR target/23359
2715         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2716
2717 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2718
2719         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2720         loop_optimizer_init and loop_optimizer_finalize
2721         * tree-ssa-sink.c (execute_sink_code): Ditto.
2722         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2723         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2724         tree_ssa_loop_done): Ditto.
2725         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2726         * sched-ebb.c: Include output.h.
2727         (schedule_ebbs): Do not use dump argument.
2728         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2729         * loop.c (loop_dump_stream): Removed.
2730         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2731         argument.
2732         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2733         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2734         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2735         loop_iterations, strength_reduce, record_biv, record_giv,
2736         final_giv_value, check_final_value, check_ext_dependent_givs,
2737         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2738         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2739         dump_file instead of loop_dump_stream.
2740         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2741         argument dump_file.
2742         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2743         dump argument.
2744         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2745         * haifa-sched.c: Include output.h
2746         (schedule_insns, sched_init): Do not use dump argument.
2747         * mode-switching.c (optimize_mode_switching): Ditto.
2748         * modulo-sched.c (stats_file): Removed.
2749         (print_node_sched_params): Do not call argument dump_file.
2750         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2751         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2752         of stats_file.
2753         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2754         use dump argument.
2755         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2756         rtl_loop_init, rtl_loop_done): Ditto.
2757         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2758         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2759         Ditto.
2760         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2761         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2762         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2763         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2764         * emit-rtl.c (renumber_insns): Ditto.
2765         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2766         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2767         * regclass.c (regclass): Ditto.
2768         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2769         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2770         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2771         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2772         Ditto.
2773         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2774         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2775         to regclass.
2776         * gcse.c (gcse_file, debug_stderr): Removed.
2777         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2778         rest_of_handle_gcse): Do not use dump argument.
2779         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2780         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2781         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2782         compute_code_hoist_vbeinout, compute_code_hoist_data,
2783         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2784         compute_store_table, build_store_vectors, insert_insn_start_bb,
2785         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2786         store_motion): Use dump_file instead of gcse_file.
2787         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2788         * profile.c (profile_dump_file): Removed.
2789         (branch_prob): Use dump_file instead of profile_dump_file.
2790         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2791         dump_file.
2792         * tree-ssa-copy.c (dump_copy_of): Ditto.
2793         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2794         dump file to life_analysis.
2795         * bt-load.c (branch_target_load_optimize): Ditto.
2796         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2797         renumber_insns.
2798         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2799         regclass, dbr_schedule): Declaration changed.
2800         * sched-int.h (sched_init): Declaration changed.
2801         * tree-profile.c (tree_profile_dump_file): Removed.
2802         (tree_profile_hooks): Removed profile_dump_file hook.
2803         * rtl-profile (rtl_profile_dump_file): Removed.
2804         (rtl_profile_hooks): emoved profile_dump_file hook.
2805         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2806         changed.
2807         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2808         * tree-cfg.c (build_tree_cfg): Ditto.
2809         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2810         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2811         Declaration changed.
2812         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2813         life_analysis and schedule_insns.
2814         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2815         life_analysis.
2816         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2817         dbr_schedule.
2818         * config/mips/mips.c (mips_reorg): Ditto.
2819         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2820         schedule_ebbs.
2821
2822 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2823
2824         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2825         (s390_mangle_fundamental_type): New.
2826         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2827         Define.
2828
2829         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2830         (alpha_mangle_fundamental_type): New.
2831         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2832         Define.
2833
2834         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2835         Define.
2836         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2837         Define.
2838         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2839         (sparc_mangle_fundamental_type): New.
2840
2841 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2842
2843         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2844         (s390x-*-linux*): Likewise.
2845         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2846         * config/s390/t-linux: New file.
2847
2848 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2849
2850         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2851         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2852
2853 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2854
2855         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2856         (ANTIC_SAFE_LOADS): New macro.
2857         (find_or_generate_expression): Add prototype.
2858         (set_contains_value): Allow null set for sake of not always having
2859         to allocate ANTIC_SAFE_LOADS.
2860         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2861         Allow COMPONENT_REF too.
2862         (valid_in_set): Allow COMPONENT_REF.
2863         Check ANTIC_SAFE_LOADS too.
2864         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2865         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2866         rename.
2867         (can_PRE_operation): Add COMPONENT_REF.
2868         (create_component_ref_by_pieces): New function.
2869         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2870         (insert_aux): Move AGGREGATE_TYPE_P check here.
2871         (compute_avail): Set bb local stmt uids.
2872         (pass_pre): Use TODO_update_ssa_only_virtuals.
2873
2874 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2875
2876         * configure.ac: Unconditionally disable decimal float by default.
2877         * configure: Regenerate.
2878
2879 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2880
2881         * read-rtl.c (read_name): Terminate reading on EOF.
2882
2883 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2884
2885         * dfp.c (decimal_real_arithmetic): Change second argument type
2886         from int to enum tree_code. Do not always return true, but now
2887         return result of any call to decimal_do helper functions.
2888         * dfp.h (decimal_real_arithmetic): Update prototype.
2889
2890 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2891
2892         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2893
2894 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2895
2896         PR tree-opt/25251
2897         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2898         forced labels.
2899
2900 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2901
2902         * tree-vrp.c (cfg_loops): Removed.
2903         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2904         Use current_loops instead of cfg_loops.  Pass flags to
2905         loop_optimizer_init.
2906         * cfgloopmanip.c (fix_loop_structure): Update only available
2907         information.
2908         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2909         loop_optimizer_init.
2910         * modulo-sched.c (build_loops_structure): Removed.
2911         (sms_schedule): Use loop_optimizer_init.
2912         * loop-init.c (loop_optimizer_init): Use flags to determine
2913         which properties of loops to prepare.
2914         (rtl_loop_init): Pass flags to loop_optimizer_init.
2915         * tree-ssa-sink.c (execute_sink_code): Ditto.
2916         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2917         * tree-ssa-pre.c (init_pre): Ditto.
2918         * cfgloop.h (LOOPS_NORMAL): New.
2919         (loop_optimizer_init): Declaration changed.
2920
2921 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2922
2923         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2924         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2925         pa/t-pa.
2926         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2927         pa/t-pa.
2928         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2929         pa/x-ada.
2930         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2931         * pa/t-pa64: Delete quadlib.c rule.
2932         * pa/x-ada: Revert last change.
2933         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2934
2935 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2936
2937         PR rtl-optimization/26087
2938         * rtlanal.c (canonicalize_condition): Do not cross basic block
2939         boundaries.
2940
2941 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2942
2943         PR debug/24444
2944         * config/ia64/ia64.c: Include debug.h.
2945         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2946         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2947         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2948         (process_epilogue, process_set, process_for_unwind_directive):
2949         Output unwind info only if requested.  Add CFA info if requested.
2950         Add new arguments as needed.  Adjust callers.
2951         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2952         incorrect default.
2953         (DWARF2_FRAME_INFO): Define to zero.
2954         * config/ia64/unwind-ia64.c: Remove code that compensated for
2955         the CFA offset error fixed above.
2956         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2957         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2958         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2959         -funwind-tables and -fexceptions to enable frame info.
2960         (dwarf2out_frame_init): Define initial CFA even if
2961         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2962         DWARF2_UNWIND_INFO is nonzero, not just defined.
2963         (dwarf2out_frame_finish): Output non-EH call frame info only
2964         if DWARF2_FRAME_INFO is nonzero.
2965         (convert_cfa_to_loc_list,
2966         compute_frame_pointer_to_cfa_displacement): Define even if
2967         unwind info is not supported.
2968         (gen_subprogram_die): Use the above unconditionally.  Remove
2969         legacy alternate code.
2970         * toplev.c (compile_file): Compile in call to
2971         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2972         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2973
2974 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2975             Jakub Jelinek  <jakub@redhat.com>
2976
2977         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2978         IBM extended float format long double as "g" on powerpc*-linux.
2979
2980 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2981
2982         PR target/25926
2983         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2984         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2985
2986 2006-02-03  Jason Merrill  <jason@redhat.com>
2987
2988         PR c++/25979
2989         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2990
2991         PR middle-end/25977
2992         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2993         on the return slot if it's an NRV.
2994
2995 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2996
2997         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2998         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2999         rewrite_use): Do not handle USE_OUTER.
3000         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
3001         add_iv_outer_candidates, may_replace_final_value,
3002         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
3003         (find_interesting_uses_op): Functionality of
3004         find_interesting_uses_outer_or_nonlin moved here.
3005         (find_interesting_uses_outside): Use find_interesting_uses_op.
3006
3007 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
3008
3009         PR target/25960
3010         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
3011
3012 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
3013             Ulrich Weigand  <uweigand@de.ibm.com>
3014
3015         PR target/25864
3016         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
3017         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
3018         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
3019         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
3020         and dxr fields.
3021         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
3022         (s390_rtx_costs): Use the new fields to calculate rtx costs.
3023         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
3024         Define secondary reloads for TFmode moves.
3025         (constant_modes): Add TFmode.
3026         (NR_C_MODES): Set to 8.
3027         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
3028         builtin define.
3029         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
3030         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
3031         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
3032         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
3033         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
3034         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
3035         (FPR mode macro): Add TFmode.
3036         (DSF mode macro): New.
3037         (<de>, <dee> mode attributes): Removed.
3038         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3039         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3040         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3041         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3042         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3043         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3044         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3045         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3046         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3047         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3048         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3049         "*negabs<mode>2", "sqrt<mode>2"):
3050         Changed <de> to <xde>. R constraint replaced by <Rf>.
3051         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3052         <Rf>.
3053         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3054         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3055         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3056         splitters.
3057         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3058         "extenddftf2", "extendsftf2"): New expanders.
3059         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3060         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3061         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3062         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3063         New options.
3064         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3065         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3066         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3067         __floatditf): Add a GCC_4.1.0 symbol version tag.
3068         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3069         the new options.
3070
3071 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3072
3073         PR target/25377
3074         * config/i386/i386.c (ix86_function_ok_for_sibcall):
3075         Use targetm.binds_local_p instead of TREE_PUBLIC.
3076
3077 2006-02-02  Roger Sayle  <roger@eyesopen.com>
3078
3079         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
3080         on INTEGER_TYPEs to indicate that it denotes a character type.
3081         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
3082         signed_char_type_node, unsigned_char_type_node and char_type_node.
3083         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
3084         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
3085         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
3086
3087 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
3088             Daniel Berlin  <dberlin@dberlin.org>
3089
3090         * tree-tailcall.c (arg_needs_copy_p): New function.
3091         (eliminate_tail_call): Use arg_needs_copy_p.
3092         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
3093         (add_virtual_phis): New function.
3094
3095 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
3096
3097         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
3098         #ignore instead of #scratch for %g7 .register directive.
3099
3100 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
3101
3102         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
3103         object files.
3104
3105 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3106
3107         * flow.c (calculate_global_regs_live): Assert that there aren't any
3108         EDGE_FAKE edges.
3109
3110 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
3111
3112         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
3113         what its name says.
3114         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
3115         bsi_after_labels iterator.
3116         * tree-if-conv.c (find_phi_replacement_condition,
3117         replace_phi_with_cond_modify_expr): Likewise.
3118         * tree-scalar-evolution.c (scev_const_prop): Likewise.
3119         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
3120
3121 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3122
3123         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
3124
3125 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3126
3127         PR 25990
3128         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3129         array after growing it.
3130
3131 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3132
3133         PR middle-end/24901
3134         * fold-const.c (fold_checksum_tree): Change type of buf.
3135
3136 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3137
3138         * reload.c (push_secondary_reload): Initialize t_icode.
3139
3140 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3141
3142         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3143         -msoft-float -mlong-double-128 only issue a warning, but don't
3144         swich to DFmode long double.
3145
3146 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3147
3148         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3149         has a constant equivalent, iterate over equivalents for arg0,
3150         calling simplify_relational_operation and if there's a result
3151         cheaper than X, apply fold_rtx and return the result.
3152
3153 2006-02-01  Jan Hubicka  <jh@suse.cz>
3154
3155         * opts.c (no_unit_at_a_time_default): New global variable.
3156         (decode_options): Use it.
3157         * opts.h (no_unit_at_a_time_default): Declare.
3158
3159 2006-02-01  Paul Brook  <paul@codesourcery.com>
3160
3161         * function.c (assign_parm_setup_reg): Use function argument promotion
3162         rules.
3163         * expr.c (expand_expr_real_1): Use function argument promotion rules
3164         for PARM_DECLs.
3165
3166 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3167
3168         * gcc.c (process_command): Change j to 'unsigned int'.
3169
3170 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3171
3172         PR middle-end/26001
3173         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3174         Use the corrected index for the character
3175         out of the string constant.
3176
3177 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3178
3179         * mode-switching.c (optimize_mode_switching): Fix size
3180         allocated for bb_info[n_entities].
3181
3182 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3183
3184         * gcc.c (main): Correct type that is allocated for
3185         explicit_link_files.
3186
3187 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3188
3189         * config/s390/s390.c (init_alignment_context): Set
3190         ALIAS_SET_MEMORY_BARRIER on the MEM.
3191         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3192
3193 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3194
3195         PR middle-end/25933
3196         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3197         dom_bbs pointer.
3198         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3199         call to tpa_init.
3200
3201 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3202
3203         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3204         * regrename.c: Ditto.
3205         * tree-ssa-loop-im.c: Ditto.
3206         * tree-dump.c: Ditto.
3207         * tree-complex.c: Ditto.
3208         * genrecog.c: Ditto.
3209         * tree-ssa-threadupdate.c: Ditto.
3210         * tracer.c: Ditto.
3211         * java/class.c: Ditto.
3212         * java/jcf-parse.c: Ditto.
3213         * java/resource.c: Ditto.
3214         * java/except.c: Ditto.
3215         * java/jvspec.c: Ditto.
3216         * java/jcf-write.c: Ditto.
3217         * java/jcf-path.c: Ditto.
3218         * java/gjavah.c: Ditto.
3219         * java/zextract.c: Ditto.
3220         * java/jcf-io.c: Ditto.
3221         * java/jcf.h: Ditto.
3222         * java/buffer.c: Ditto.
3223         * java/lang.c: Ditto.
3224         * java/parse-scan.y: Ditto.
3225         * java/lex.c: Ditto.
3226         * java/lex.h: Ditto.
3227         * cfgloopmanip.c: Ditto.
3228         * postreload-gcse.c: Ditto.
3229         * tree-ssa-loop-manip.c: Ditto.
3230         * postreload.c: Ditto.
3231         * tree-ssa-loop-ch.c: Ditto.
3232         * loop.c: Ditto.
3233         * ipa-cp.c: Ditto.
3234         * cppspec.c: Ditto.
3235         * diagnostic.c: Ditto.
3236         * final.c: Ditto.
3237         * genoutput.c: Ditto.
3238         * gcc.c: Ditto.
3239         * cfghooks.c: Ditto.
3240         * cfgloopanal.c: Ditto.
3241         * objc/objc-act.c: Ditto.
3242         * gcov.c: Ditto.
3243         * genextract.c: Ditto.
3244         * genautomata.c: Ditto.
3245         * pretty-print.c: Ditto.
3246         * genemit.c: Ditto.
3247         * cgraphunit.c: Ditto.
3248         * flow.c: Ditto.
3249         * df-scan.c: Ditto.
3250         * haifa-sched.c: Ditto.
3251         * dominance.c: Ditto.
3252         * dbxout.c: Ditto.
3253         * tree-ssa-loop-ivopts.c: Ditto.
3254         * df-core.c: Ditto.
3255         * mode-switching.c: Ditto.
3256         * modulo-sched.c: Ditto.
3257         * graph.c: Ditto.
3258         * ipa-pure-const.c: Ditto.
3259         * cse.c: Ditto.
3260         * fix-header.c: Ditto.
3261         * web.c: Ditto.
3262         * tree-stdarg.c: Ditto.
3263         * ipa-utils.c: Ditto.
3264         * loop-init.c: Ditto.
3265         * ipa-inline.c: Ditto.
3266         * cfganal.c: Ditto.
3267         * global.c: Ditto.
3268         * alloc-pool.c: Ditto.
3269         * dwarf2out.c: Ditto.
3270         * opts.c: Ditto.
3271         * genattrtab.c: Ditto.
3272         * tree-ssa-loop-ivcanon.c: Ditto.
3273         * predict.c: Ditto.
3274         * timevar.c: Ditto.
3275         * lcm.c: Ditto.
3276         * fortran/gfortranspec.c: Ditto.
3277         * regmove.c: Ditto.
3278         * local-alloc.c: Ditto.
3279         * langhooks.c: Ditto.
3280         * function.c: Ditto.
3281         * tree-vectorizer.c: Ditto.
3282         * gcse.c: Ditto.
3283         * ipa-type-escape.c: Ditto.
3284         * alias.c: Ditto.
3285         * tree-if-conv.c: Ditto.
3286         * profile.c: Ditto.
3287         * ipa.c: Ditto.
3288         * tree-data-ref.c: Ditto.
3289         * loop-unroll.c: Ditto.
3290         * treelang/treetree.c: Ditto.
3291         * calls.c: Ditto.
3292         * bt-load.c: Ditto.
3293         * ggc-common.c: Ditto.
3294         * except.c: Ditto.
3295         * coverage.c: Ditto.
3296         * cselib.c: Ditto.
3297         * tree-cfgcleanup.c: Ditto.
3298         * tree-ssa-pre.c: Ditto.
3299         * cfgcleanup.c: Ditto.
3300         * loop-invariant.c: Ditto.
3301         * loop-iv.c: Ditto.
3302         * ipa-prop.c: Ditto.
3303         * print-tree.c: Ditto.
3304         * conflict.c: Ditto.
3305         * ggc-page.c: Ditto.
3306         * sched-deps.c: Ditto.
3307         * regclass.c: Ditto.
3308         * tree-object-size.c: Ditto.
3309         * combine.c: Ditto.
3310         * bb-reorder.c: Ditto.
3311         * resource.c: Ditto.
3312         * var-tracking.c: Ditto.
3313         * cfgloop.c: Ditto.
3314         * df-problems.c: Ditto.
3315         * reg-stack.c: Ditto.
3316         * tlink.c: Ditto.
3317         * gccspec.c: Ditto.
3318         * sched-rgn.c: Ditto.
3319         * tree-ssa-structalias.c: Ditto.
3320         * tree-ssa-reassoc.c: Ditto.
3321         * config/darwin-c.c: Ditto.
3322         * config/darwin.c: Ditto.
3323         * config/arm/arm.c: Ditto.
3324         * cfgrtl.c: Ditto.
3325         * collect2.c: Ditto.
3326         * reload1.c: Ditto.
3327
3328 2006-01-31  Nicolas Pitre  <nico@cam.org>
3329
3330         * arm.md (smaxsi3): Make aware of smax_m1.
3331         (smax_m1): New.
3332
3333 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3334
3335         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3336
3337 2006-01-31  Richard Guenther  <rguenther@suse.de>
3338
3339         * doc/invoke.texi (-msselibm): Document.
3340         * target.h (expand_library_builtin): New target hook.
3341         * builtins.c (expand_builtin): Use expand_library_builtin.
3342         (default_expand_library_builtin): New function.
3343         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3344         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3345         (link_gcc_math_spec): Declare.
3346         (static_specs): Add link_gcc_math_spec.
3347         * expr.h (default_expand_library_builtin): Declare.
3348         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3349         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3350         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3351         * config/i386/i386.opt (msselibm): New target option.
3352         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3353         (ix86_init_sse_abi_builtins): New function.
3354         (ix86_expand_library_builtin): Likewise.
3355         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3356         (override_options): Handle error conditions wrt -msselibm.
3357         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3358         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3359         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3360         builtins.
3361
3362 2006-01-31  Richard Guenther  <rguenther@suse.de>
3363         Paolo Bonzini  <bonzini@gnu.org>
3364
3365         * doc/install.texi (--disable-libgcc-math): Document.
3366
3367 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3368
3369         * expr.h (expand_normal): new inline function.
3370         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3371         * dojump.c: use it.
3372         * dwarf2out.c: use it.
3373         * expr.c: use it.
3374         * calls.c: use it.
3375         * expmed.c: use it.
3376         * except.c: use it.
3377         * config/sparc/sparc.c: use it.
3378         * config/i386/i386.c: use it.
3379         * config/rs6000/rs6000.c: use it.
3380         * config/arm/arm.c: use it.
3381         * config/mips/mips.c: use it.
3382         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3383
3384 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3385
3386         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3387         argv to the appropriate type.
3388
3389 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3390
3391         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3392         unreachable code.
3393
3394 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3395
3396         PR target/26018
3397         * config/s390/s390.c (struct machine_function): New flag
3398         decomposed_literal_pool_addresses_ok_p.
3399         (s390_reorg): Set it before final stage of literal pool transforms.
3400         (s390_decompose_address): Only accept displacements of the form
3401         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3402
3403 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3404
3405         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3406         the comparison routine return.
3407
3408 2006-01-30  Michael Matz  <matz@suse.de>
3409
3410         * global.c (find_reg): Only evict for global regs.
3411         Take n_refs into account and dump more info.