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2010-04-19 Martin Jambor <mjambor@suse.cz>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2
3         * gimple.h (create_tmp_reg): Declare.
4         * gimplify.c (create_tmp_reg): New function.
5         (gimplify_return_expr): Use create_tmp_reg.
6         (gimplify_omp_atomic): Likewise.
7         (gimple_regimplify_operands): Likewise.
8         * tree-dfa.c (make_rename_temp): Likewise.
9         * tree-predcom.c (predcom_tmp_var): Likewise.
10         (reassociate_to_the_same_stmt): Likewise.
11         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
12         (get_replaced_param_substitute): Likewise.
13         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
14         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
15         * tree-ssa-pre.c (get_representative_for): Likewise.
16         (create_expression_by_pieces): Likewise.
17         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
18         (create_tailcall_accumulator): Likewise.
19
20 2010-04-19  Martin Jambor  <mjambor@suse.cz>
21
22         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
23         new_stmt.
24         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
25
26 2010-04-19  Richard Guenther  <rguenther@suse.de>
27
28         PR tree-optimization/43796
29         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
30         from SCEV in the lattice.
31         (vrp_visit_phi_node): Dump change.
32
33 2010-04-19  Richard Guenther  <rguenther@suse.de>
34
35         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
36         * configure: Re-generated.
37
38 2010-04-19  Richard Guenther  <rguenther@suse.de>
39
40         PR tree-optimization/43783
41         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
42         constant ARRAY_REF operands two and three if possible.
43
44 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
45
46         PR target/43766
47         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
48
49 2010-04-19  Jie Zhang  <jie@codesourcery.com>
50
51         PR target/43662
52         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
53
54 2010-04-19 Ira Rosen <irar@il.ibm.com>
55
56         PR tree-optimization/37027
57         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions 
58         and macro to access it.
59         (vectorizable_reduction): Add argument.
60         (vect_get_slp_defs): Likewise.
61         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
62         statements for possible use in SLP.
63         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
64         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
65         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
66         add new argument.
67         (vectorizable_reduction): Likewise.
68         * tree-vect-stmts.c (vect_get_vec_defs): Update call to 
69         vect_get_slp_defs.
70         (vectorizable_type_demotion, vectorizable_type_promotion,
71         vectorizable_store): Likewise.
72         (vect_analyze_stmt): Update call to vectorizable_reduction.
73         (vect_transform_stmt): Likewise.
74         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
75         (vect_build_slp_tree): Fix indentation. Check that there are no loads
76         from different interleaving chains in same node.
77         (vect_slp_rearrange_stmts): New function.
78         (vect_supported_load_permutation_p): Allow load permutations for 
79         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
80         inside SLP nodes if necessary.
81         (vect_analyze_slp_instance): Handle reductions.
82         (vect_analyze_slp): Try to build SLP instances originating from groups
83         of reductions.
84         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
85         (vect_get_constant_vectors): Create initial vectors for reductions
86         according to reduction code. Add new argument.
87         (vect_get_slp_defs): Add new argument, pass it to 
88         vect_get_constant_vectors.
89         (vect_schedule_slp_instance): Remove SLP tree root statements.
90
91 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
92
93         * tree.h (ENUM_IS_SCOPED): Define.
94         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
95         for ENUM_IS_SCOPED enums.
96
97 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
98
99         * fold-const.c (fold_comparison): Use ssizetype.
100         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
101         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
102         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
103         * tree-object-size.c (compute_object_sizes): Use size_type_node.
104
105         * tree.h (initialize_sizetypes): Remove parameter.
106         (build_common_tree_nodes): Remove second parameter.
107         * stor-layout.c (initialize_sizetypes): Remove parameter.
108         Always create an unsigned type.
109         (set_sizetype): Assert that the passed type is unsigned and simplify.
110         * tree.c (build_common_tree_nodes): Remove second parameter.
111         Adjust call to initialize_sizetypes.
112         * c-decl.c (c_init_decl_processing): Remove second argument in call to
113         build_common_tree_nodes.
114
115 2010-04-18  Matthias Klose  <doko@ubuntu.com>
116
117         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
118
119 2010-04-18 Ira Rosen <irar@il.ibm.com> 
120
121         PR tree-optimization/43771
122         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
123         load permutation doesn't have gaps.
124
125 2010-04-18  Jan Hubicka  <jh@suse.cz>
126
127         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
128         (sse_prologue_save_insn expander): Use new pattern.
129         (sse_prologue_save_insn1): New pattern and splitter.
130         (sse_prologue_save_insn): Update to deal also with 64bit aligned
131         blocks.
132         * i386.c (setup_incoming_varargs_64): Do not compute jump
133         destination here.
134         (ix86_gimplify_va_arg): Update alignment needed.
135         (ix86_local_alignment): Do not align all local arrays to 128bit.
136
137 2010-04-17  Jan Hubicka  <jh@suse.cz>
138
139         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
140
141 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
142
143         * arm.md (negdi2): Remove redundant code to force values into a
144         register.
145
146 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
147
148         * arm/bpabi.S: Add EABI alignment attributes to objects.
149         * arm/bpabi-v6m.S: Likewise.
150         * arm/crti.asm: Likewise.
151         * arm/crtn.asm: Likewise.
152         * arm/lib1funcs.asm: Likewise.
153         * arm/libunwind.S: Likewise.
154
155 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
156
157         * arm-protos.h (tune_params): New structure.
158         * arm.c (current_tune): New variable.
159         (arm_constant_limit): Delete.
160         (struct processors): Add pointer to the tune parameters.
161         (arm_slowmul_tune): New tuning option.
162         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
163         (all_cores): Adjust to pick up the tuning model.
164         (arm_constant_limit): New function.
165         (arm_override_options): Select the appropriate tuning model.  Delete
166         initialization of arm_const_limit.
167         (arm_split_constant): Use the new constant-limit model.
168         (arm_rtx_costs): Pick up the current tuning model.
169         * arm.md (is_strongarm, is_xscale): Delete.
170         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
171         for Xscale variant architectures.
172         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
173
174 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
175
176         * config/arm/arm.c (arm_gen_constant): Remove unused variable
177         can_shift.
178         (arm_rtx_costs_1): Remove unused variable extra_cost.
179         (arm_unwind_emit_set): Use variable offset.
180         (thumb1_output_casesi): Remove unused variable flags.
181
182 2010-04-16  Jeff Law  <law@redhat.com>
183
184         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
185         needing assignment rather than doing a two-phase assignment.  Remove
186         unused variable 'm'.
187
188 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
189
190         PR bootstrap/43767
191         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
192
193 2010-04-16  Doug Kwan  <dougkwan@google.com>
194
195         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
196         (next_operand_entry_id): New static variable.
197         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
198         (add_to_ops_vec): Assigned unique ID to operand entry.
199         (struct oecount_s): New field ID.
200         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
201         (undistribute_ops_list): Assign unique IDs to oecounts.
202         (init_reassoc): reset next_operand_entry_id.
203
204 2010-04-16  Doug Kwan  <dougkwan@google.com>
205
206         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
207         missing left parenthesis.
208         
209 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
210
211         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
212         *btdi_rex64 using SWI48 mode iterator.
213         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
214         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
215         *jcc_btdi_mask_rex64.
216
217 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
218
219         * double-int.h (tree_to_double_int): Convert to macro.
220         * double-int.c (tree_to_double_int): Remove.
221
222 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
223
224         PR debug/43762
225         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
226         with want_address 2 and in case a single element list might be
227         possible, call it again with want_address 0.
228
229 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
230
231         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
232         case 'W' print operands for HI mode.
233         * config/h8300/h8300.h (Y0, Y2) : New constraints.
234         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
235         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
236         * config/h8300/predicate.md (bit_register_indirect_operand): New.
237
238         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
239
240         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx, 
241         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
242         #xx:3 and #xx:4 mode.
243
244         * config/h8300/h8300.md (inverted load with HImode dest): Add
245         support for H8300SX.
246
247         * config/h8300/predicate.md (bit_operand): Allow immediate values that
248         satisfy 'U' constraint.
249
250 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
251
252         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx
253         flavor.
254         * configure: Regenerate.
255         * config.in: Regenerate.
256         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
257         works.
258
259 2010-04-16  Richard Guenther  <rguenther@suse.de>
260
261         * tree.h (struct tree_decl_minimal): Move pt_uid ...
262         (struct tree_decl_common): ... here.
263         (DECL_PT_UID): Adjust.
264         (SET_DECL_PT_UID): Likewise.
265         (DECL_PT_UID_SET_P): Likewise.
266
267 2010-04-16  Richard Guenther  <rguenther@suse.de>
268
269         PR tree-optimization/43572
270         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
271         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
272         * tree-flow.h (is_call_clobbered): Remove.
273         * tree-flow-inline.h (is_call_clobbered): Likewise.
274         * tree-dfa.c (dump_variable): Do not dump call clobber state.
275         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
276         (execute_return_slot_opt): Adjust.
277         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
278         check for call clobbered vars here.
279         (find_tail_calls): Move tailcall verification to the
280         proper place.
281
282 2010-04-16  Diego Novillo  <dnovillo@google.com>
283
284         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings
285         handled.
286
287 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
288
289         PR target/40603
290         * config/arm/arm.md (cbranchqi4): New pattern.
291         * config/arm/predicates.md (const0_operand,
292         cbranchqi4_comparison_operator): New predicates.
293
294 2010-04-16  Richard Guenther  <rguenther@suse.de>
295
296         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
297         (dump_gimple_stmt): Likewise.
298
299 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
300
301         * recog.h (struct recog_data): New field is_operator.
302         (struct insn_operand_data): New field is_operator.
303         * recog.c (extract_insn): Set recog_data.is_operator.
304         * genoutput.c (output_operand_data): Emit code to set the
305         is_operator field.
306         * reload.c (find_reloads): Use it rather than testing for an
307         empty constraint string.
308
309         PR target/41514
310         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
311         If the previous insn is a cbranchsi4_insn with the same arguments,
312         omit the compare instruction.
313
314         * config/arm/arm.md (addsi3_cbranch): If destination is a high
315         register, inputs must be low registers and we need a low register
316         scratch.  Handle alternative 2 like alternative 3.
317
318 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
319
320         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
321         don't call get_addr on both.  If one expression is a VALUE and
322         the other a REG, check VALUE's locs if the REG isn't among them.
323
324 2010-04-16  Christian Bruel  <christian.bruel@st.com>
325
326         * config/sh/sh.h (sh_frame_pointer_required): New function.
327         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
328         (flag_omit_frame_pointer) Set.
329         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
330         (rounded_frame_size): Adjust size with outgoing_args_size.
331         (sh_set_return_address): Must return from stack pointer.
332         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
333         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
334         (ACCUMULATE_OUTGOING_ARGS): Define.
335         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
336         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
337
338 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
339
340         PR target/43471
341         * config/sh/sh.c (sh_legitimize_reload_address): Use
342         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
343         Remove a unneeded check for offset_base.
344
345 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
346
347         * configure: Regenerated.
348
349 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
350
351         * config/s390/s390.c (s390_call_save_register_used): Switch back
352         to HARD_REGNO_NREGS.
353
354 2010-04-15  Richard Guenther  <rguenther@suse.de>
355
356         * alias.c (alias_set_subset_of): Handle alias-set zero
357         child properly.
358
359 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
360             Julian Brown  <julian@codesourcery.com>
361
362         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
363         alternatives according to use of high and low regs.
364         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
365         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
366         optimizing for size on Thumb-2.
367
368 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
369
370         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
371
372 2010-04-15  Richard Guenther  <rguenther@suse.de>
373
374         * tree-ssa-structalias.c (struct variable_info): Add
375         is_fn_info flag.
376         (new_var_info): Initialize it.
377         (dump_constraints): Support printing last added constraints.
378         (debug_constraints): Adjust.
379         (dump_constraint_graph): Likewise.
380         (make_heapvar_for): Check for NULL cfun.
381         (get_function_part_constraint): New function.
382         (get_fi_for_callee): Likewise.
383         (find_func_aliases): Properly implement IPA PTA constraints.
384         (process_ipa_clobber): New function.
385         (find_func_clobbers): Likewise.
386         (insert_into_field_list_sorted): Remove.
387         (create_function_info_for): Properly allocate vars for IPA mode.
388         Do not use insert_into_field_list_sorted.
389         (create_variable_info_for): Properly generate constraints for
390         global vars in IPA mode.
391         (dump_solution_for_var): Always dump the solution.
392         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
393         (find_what_var_points_to): Adjust.
394         (pt_solution_set): Change.
395         (pt_solution_ior_into): New function.
396         (pt_solution_empty_p): Export.
397         (pt_solution_includes_global): Adjust.
398         (pt_solution_includes_1): Likewise.
399         (pt_solutions_intersect_1): Likewise.
400         (dump_sa_points_to_info): Check some invariants.
401         (solve_constraints): Move constraint dumping ...
402         (compute_points_to_sets): ... here.
403         (ipa_pta_execute): ... and here.
404         (compute_may_aliases): Do not re-compute points-to info
405         locally if IPA info is available.
406         (ipa_escaped_pt): New global var.
407         (ipa_pta_execute): Properly implement IPA PTA.
408         * tree-into-ssa.c (dump_decl_set): Support dumping
409         decls not in referenced-vars.
410         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
411         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
412         (dump_points_to_solution): Likewise.
413         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
414         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
415         (remap_gimple_stmt): Reset call clobber/use information if
416         necessary.
417         (copy_decl_to_var): Copy DECL_PT_UID.
418         (copy_result_decl_to_var): Likewise.
419         * tree.c (make_node_stat): Initialize DECL_PT_UID.
420         (copy_node_stat): Copy it.
421         * tree.h (DECL_PT_UID): New macro.
422         (SET_DECL_PT_UID): Likewise.
423         (DECL_PT_UID_SET_P): Likewise.
424         (struct tree_decl_minimal): Add pt_uid member.
425         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
426         (pt_solution_empty_p): Declare.
427         (pt_solution_set): Adjust.
428         (ipa_escaped_pt): Declare.
429         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
430         * gimple-pretty-print.c (pp_points_to_solution): New function.
431         (dump_gimple_call): Dump call clobber/use information.
432         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
433         * tree-pass.h (TDF_ALIAS): New dump option.
434         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
435         * doc/invoke.texi (-fipa-pta): Update documentation.
436
437 2010-04-15  Richard Guenther  <rguenther@suse.de>
438
439         * Makefile.in (OBJS-common): Add gimple-fold.o.
440         (gimple-fold.o): New rule.
441         * tree.h (maybe_fold_offset_to_reference,
442         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
443         prototypes ...
444         * gimple.h: ... here.
445         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
446         may_propagate_address_into_dereference): Move prototypes ...
447         * gimple.h: ... here.
448         * tree-ssa-ccp.c (get_symbol_constant_value,
449         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
450         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
451         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
452         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
453         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
454         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
455         gimplify_and_update_call_from_tree): Move ...
456         * gimple-fold.c: ... here.  New file.
457         (ccp_fold_builtin): Rename to ...
458         (gimple_fold_builtin): ... this.
459         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
460
461 2010-04-15  Richard Guenther  <rguenther@suse.de>
462
463         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
464         fit_double_type, force_fit_type_double, add_double_with_sign,
465         neg_double, mul_double_with_sign, lshift_double, rshift_double,
466         lrotate_double, rrotate_double, div_and_round_double): Move ...
467         * double-int.c: ... here.
468         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
469         add_double, neg_double, mul_double_with_sign, mul_double,
470         lshift_double, rshift_double, lrotate_double, rrotate_double,
471         div_and_round_double): Move prototypes ...
472         * double-int.h: ... here.
473
474 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
475
476         PR target/43742
477         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
478         matching constraints to ensure inputs match the output.
479
480 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
481
482         PR target/43742
483         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
484         in an input-only operand.       
485
486 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
487
488         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
489         (double_int_not, double_int_lshift, double_int_rshift): Declare.
490         (double_int_negative_p): Convert to static inline function.
491         * double-int.c (double_int_lshift, double_int_lshift): Add new function.
492         (double_int_negative_p): Remove.
493         * tree.h (lshift_double, rshift_double): 
494         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
495         * fold-const.c (fold_convert_const_int_from_real,
496         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
497         (lshift_double): Change type of arith argument to bool.
498         (rshift_double): Change type of arith argument to bool. Correct
499         comment.
500         * expmed.c (mask_rtx, lshift_value): (Ditto.).
501
502 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
503         
504         PR target/21803
505         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
506         at the start and end of the then/else blocks, and omit them from the
507         conversion.
508         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
509         argument; all callers changed.  Pass zero to old_insns_match_p instead.
510         (flow_find_head_matching_sequence): New function.
511         (old_insns_match_p): Check REG_EH_REGION notes for calls.
512         * basic-block.h (flow_find_cross_jump,
513         flow_find_head_matching_sequence): Declare functions.
514
515 2010-04-14  Jason Merrill  <jason@redhat.com>
516
517         PR c++/36625
518         * c-common.c (attribute_takes_identifier_p): New fn.
519         * c-common.h: Declare it.
520
521 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
522
523         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
524         splitter condition.
525         (*udivmod<mode>4): Ditto.
526
527 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
528
529         * config/i386/i386.md (maxmin_int): Rename code attribute from
530         maxminiprefix and update all users.
531         (maxmin_float): Ditto from maxminfprefix.
532         (logic): Ditto from logicprefix.
533         (absneg_mnemonic): Ditto from absnegprefix.
534         * config/i386/mmx.md: Update all users of maxminiprefix,
535         maxminfprefix and logicprefix for rename.
536         * config/i386/sse.md: Ditto.
537         * config/i386/sync.md (sync_<code><mode>): Update for
538         logicprefix rename.
539
540 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
541
542         PR 42966
543         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
544         warnings converted to errors.
545
546 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
547
548         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
549         used insn_type variable.
550         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
551         to avoid set-but-not-used warning.
552
553 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
554
555         * df-core.c (df_ref_debug): Change format string placeholder
556         from 0x%x to %#x.
557         * dwarf2asm.c (dw2_asm_output_data_raw,
558         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
559         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
560         * dwarf2out.c (output_cfi, output_cfi_directive,
561         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
562         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
563         Ditto.
564         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
565         * print-rtl.c (print_rtx): Ditto.
566
567 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
568
569         PR middle-end/42694
570         * builtins.c (expand_builtin_pow_root): New function to expand pow
571         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
572         series of sqrt and cbrt calls under -ffast-math.
573         (expand_builtin_pow): Call it.
574
575 2010-04-14  Michael Matz  <matz@suse.de>
576
577         PR tree-optimization/42963
578         * tree-cfg.c (touched_switch_bbs): New static variable.
579         (group_case_labels_stmt): New function broken out from ...
580         (group_case_labels): ... here, use the above.
581         (start_recording_case_labels): Allocate touched_switch_bbs.
582         (end_recording_case_labels): Deallocate it, call
583         group_case_labels_stmt.
584         (gimple_redirect_edge_and_branch): Remember index of affected BB.
585
586 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
587
588         * config/i386/i386.md (*popcountsi2_cmp_zext): Remove mode attribute
589         from insn template.
590
591 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
592
593         * config/i386/i386.md (*ashlqi3_1_slp): New insn pattern.
594
595 2010-04-13  Jan Hubicka  <jh@suse.cz>
596
597         * ipa-inline.c (cgraph_mark_inline_edge): Avoid double accounting
598         of optimized out static functions.
599         (cgraph_edge_badness): Add DUMP parameter and dump reasons for the
600         cost computation.  Also sanity check for overflows.
601         (update_caller_keys): Update cgraph_edge_badness call; properly
602         update fibheap and sanity check that it is up to date.
603         (add_new_edges_to_heap): Update cgraph_edge_badness.
604         (cgraph_decide_inlining_of_small_function): Likewise;
605         add sanity checking that badness in heap is up to date;
606         improve dumping of reason; Update badness of calls to the
607         offline copy of function currently inlined; dump badness
608         of functions not inlined because of unit growth limits.
609
610 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
611
612         PR middle-end/32628
613         * c-common.c (pointer_int_sum): Disregard overflow that occured only
614         because of sign-extension change when converting to sizetype here...
615         * fold-const.c (fold_convert_const_int_from_int): ...and not here.
616
617         * fold-const.c (fold_binary_op_with_conditional_arg): Do not restrict
618         the folding to constants.  Remove redundant final conversion.
619         (fold_binary) <associate>: Do not associate if the re-association of
620         constants alone overflows.
621         (fold_binary) <FLOOR_MOD_EXPR>: Move transformation into BIT_AND_EXPR
622         to the end of the list.
623         (multiple_of_p) <COND_EXPR>: New case.
624
625 2010-04-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>
626
627         * opt-functions.awk (opt_sanitized_name): New.
628         (opt_enum): New.
629         * optc-gen.awk: Use it
630         * opth-gen.awk: Use it.
631
632 2010-04-13  Martin Jambor  <mjambor@suse.cz>
633
634         * tree-sra.c (replace_uses_with_default_def_ssa_name): New function.
635         (sra_modify_assign): Delete stmts loading dead data even if racc has no
636         children.  Call replace_uses_with_default_def_ssa_name to handle
637         SSA_NAES on lhs.
638
639 2010-04-13  Michael Matz  <matz@suse.de>
640
641         PR middle-end/43730
642         * builtins.c (expand_builtin_interclass_mathfn): Also create
643         a register if the predicate doesn't match.
644
645 2010-04-13  Diego Novillo  <dnovillo@google.com>
646
647         * Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.
648         * c-pch.c: Include timevar.h.
649         (c_common_write_pch): Use TV_PCH_SAVE and TV_PCH_CPP_SAVE timers.
650         (c_common_read_pch): Use TV_PCH_RESTORE and TV_PCH_CPP_RESTORE timers.
651         * ggc-common.c: Include timevar.h.
652         (gt_pch_save): Use TV_PCH_PTR_REALLOC and TV_PCH_PTR_SORT timers.
653         * timevar.def (TV_PCH_SAVE): Define.
654         (TV_PCH_CPP_SAVE): Define.
655         (TV_PCH_PTR_REALLOC): Define.
656         (TV_PCH_PTR_SORT): Define.
657         (TV_PCH_RESTORE): Define.
658         (TV_PCH_CPP_RESTORE): Define.
659
660 2010-04-13  Michael Matz  <matz@suse.de>
661
662         * tree-ssa-reassoc.c (repropagate_negates): Merge negates also
663         into MINUS_EXPRs.
664         (can_reassociate_p): New function.
665         (break_up_subtract_bb, reassociate_bb): Use it.
666
667 2010-04-13  Richard Guenther  <rguenther@suse.de>
668
669         PR bootstrap/43737
670         * builtins.c (c_readstr): Fix assert.
671
672 2010-04-13  Uros Bizjak  <ubizjak@gmail.com>
673
674         * config/i386/i386.md (extendsidi2 splitter): Also check for DX_REG
675         when generating cltd insn.
676
677         (*ashl<mode>3_1): Remove special handling for register operand 2.
678         (*ashlsi3_1_zext): Ditto.
679         (*ashlhi3_1): Ditto.
680         (*ashlhi3_1_lea): Ditto.
681         (*ashlqi3_1): Ditto.
682         (*ashlqi3_1_lea): Ditto.
683         (*<shiftrt_insn><mode>3_1): Ditto.
684         (*<shiftrt_insn>si3_1_zext): Ditto.
685         (*<shiftrt_insn>qi3_1_slp): Ditto.
686         (*<rotate_insn><mode>3_1): Ditto.
687         (*<rotate_insn>si3_1_zext): Ditto.
688         (*<rotate_insn>qi3_1_slp): Ditto.
689
690 2010-04-13  Richard Guenther  <rguenther@suse.de>
691
692         * tree-ssa-structalias.c (callused_id): Remove.
693         (call_stmt_vars): New.
694         (get_call_vi): Likewise.
695         (lookup_call_use_vi): Likewise.
696         (lookup_call_clobber_vi): Likewise.
697         (get_call_use_vi): Likewise.
698         (get_call_clobber_vi): Likewise.
699         (make_transitive_closure_constraints): Likewise.
700         (handle_const_call): Adjust to do per-call call-used handling.
701         (handle_pure_call): Likewise.
702         (find_what_var_points_to): Remove general callused handling.
703         (init_base_vars): Likewise.
704         (init_alias_vars): Initialize call_stmt_vars.
705         (compute_points_to_sets): Process call-used and call-clobbered
706         vars for call statements.
707         (delete_points_to_sets): Free call_stmt_vars.
708
709 2010-04-13  Richard Guenther  <rguenther@suse.de>
710
711         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
712         Only add RW dependence for dependence distance zero.
713         Adjust maximal vectorization factor according to dependences.
714         Move alignment handling ...
715         (vect_find_same_alignment_drs): ... here.  New function.
716         (vect_analyze_data_ref_dependences): Adjust.
717         (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
718         (vect_analyze_data_refs): Adjust minimal vectorization factor
719         according to data references.
720         * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
721         dependences before determining the vectorization factor.
722         Analyze alignment after determining the vectorization factor.
723         * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
724         dependences before alignment.
725         * tree-vectorizer.h (vect_analyze_data_ref_dependences):
726         Adjust prototype.
727         (vect_analyze_data_refs): Likewise.
728         (MAX_VECTORIZATION_FACTOR): New define.
729
730 2010-04-13  Duncan Sands  <baldrick@free.fr>
731
732         * except.h (lang_eh_type_covers): Remove.
733         * except.c (lang_eh_type_covers): Likewise.
734
735 2010-04-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
736             Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
737
738         * gcc/config/s390/s390.md: Replace TARGET_64BIT with TARGET_ZARCH.
739         * gcc/config/s390/s390.c: Replace UNTIS_PER_WORD with
740         UNITS_PER_LONG where it is ABI relevant.
741         (s390_return_addr_rtx): Likewise.
742         (s390_back_chain_rtx): Likewise.
743         (s390_frame_area): Likewise.
744         (s390_frame_info): Likewise.
745         (s390_initial_elimination_offset): Likewise.
746         (save_gprs): Likewise.
747         (s390_emit_prologue): Likewise.
748         (s390_emit_epilogue): Likewise.
749         (s390_function_arg_advance): Likewise.
750         (s390_function_arg): Likewise.
751         (s390_va_start): Likewise.
752         (s390_gimplify_va_arg): Likewise.
753         (s390_function_profiler): Likewise.
754         (s390_optimize_prologue): Likewise.
755         (s390_rtx_costs): Likewise.
756         (s390_secondary_reload): Likewise.
757         (s390_promote_function_mode): Likewise.
758         (s390_hard_regno_mode_ok): Replace TARGET_64BIT with TARGET_ZARCH.
759         (s390_scalar_mode_supported_p): Disallow TImode if no 64 bit
760         registers available.
761         (s390_unwind_word_mode): New function.
762         (s390_function_value): Split 64 bit values into register pair if
763         used as return value.
764         (s390_call_saved_register_used): Don't use HARD_REGNO_NREGS for
765         function call parameters.  Handle parallels.
766         (TARGET_SCALAR_MODE_SUPPORTED_P): New macro.
767         (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
768         (DWARF_CIE_DATA_ALIGNMENT): New macro.
769         (s390_expand_setmem): Remove unused variable src_addr.
770         * gcc/longlong.h: Make smul_ppmm and sdiv_qrnnd inline asms to
771         deal with 64 bit registers.
772         * gcc/config/s390/s390.h: Define __zarch__ predefined macro.
773         Replace UNITS_PER_WORD with UNITS_PER_LONG where it is ABI relevant.
774         (UNITS_PER_LONG): New macro.
775         * libjava/include/s390-signal.h: Define extended ucontext
776         structure containing the upper halfs of the 64 bit registers.
777
778 2010-04-13  Simon Baldwin  <simonb@google.com>
779
780         * cfgexpand.c (gimple_expand_cfg): Clarify warning message text.
781
782 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
783
784         * gimple.c (walk_gimple_op) <GIMPLE_ASSIGN>: Do not request a pure
785         rvalue on the RHS if the LHS is of a non-renamable type.
786         * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Fold result.
787
788 2010-04-13  Matthias Klose  <doko@ubuntu.com>
789
790         * gcc.c (cc1_options): Handle -iplugindir before processing
791         the cc1 spec. Only add -iplugindir once.
792         (cpp_unique_options): Add -iplugindir option if -fplugin* options
793         found.
794         * common.opt (iplugindir): Remove `Separate' property, initialize.
795         * plugin.c (default_plugin_dir_name): Error with missing -iplugindir
796         option.
797         * Makefile.in (check-%, check-parallel-%): Create plugin dir.
798         (distclean): Remove plugin dir.
799         * doc/invoke.texi: Document -iplugindir.
800
801 2010-04-13  Basile Starynkevitch  <basile@starynkevitch.net>
802
803         * doc/plugins.texi (Loading Plugins): Document short
804         -fplugin=foo option.
805         (Plugin API): Mention default_plugin_dir_name function.
806
807         * gcc.c (find_file_spec_function): Add new declaration.
808         (static_spec_func): Use it for "find-file".
809         (find_file_spec_function): Add new function.
810         (cc1_options): Add -iplugindir option if -fplugin* options found.
811
812         * gcc-plugin.h (default_plugin_dir_name): Added new declaration.
813
814         * plugin.c (add_new_plugin): Updated comment, and handle short
815         plugin name.
816         (default_plugin_dir_name): Added new function.
817
818         * common.opt (iplugindir): New option to set the plugin directory.
819
820 2010-04-12  Uros Bizjak  <ubizjak@gmail.com>
821
822         * config/i386/i386.md (any_rotate): New code iterator.
823         (rotate_insn): New code attribute.
824         (rotate): Ditto.
825         (SWIM124): New mode iterator.
826         (<rotate_insn>ti3): New expander.
827         (<rotate_insn>di3): Macroize expander from {rotl,rotr}di3 using
828         any_rotate code iterator.
829         (<rotate_insn><mode>3) Macroize expander from {rotl,rotr}{qi,hi,si}3
830         using any_rotate code iterator and SWIM124 mode iterator.
831         (ix86_rotlti3): New insn_and_split pattern.
832         (ix86_rotrti3): Ditto.
833         (ix86_rotl<dwi>3_doubleword): Macroize insn_and_split pattern from
834         ix86_rotl{di,ti}3 patterns.
835         (ix86_rotr<dwi>3_doubleword): Ditto from ix86_rotr{di,ti}3 patterns.
836         (*<rotate_insn><mode>3_1): Merge with *{rotl,rotr}{qi,hi,si}3_1_one_bit
837         and *{rotl,rotr}di3_1_one_bit_rex64. Macroize insn from
838         *{rotl,rotr}{qi,hi,si}3_1 and *{rotl,rotr}di3_1_rex64 using any_rotate
839         code iterator and SWI mode iterator.
840         (*<rotate_insn>si3_1_zext): Merge with *{rotl,rotr}si3_1_one_bit_zext.
841         Macroize insn from {rotl,rotr}si3_1_zext using any_rotate
842         code iterator.
843         (*<rotate_insn>qi3_1_slp): Merge with *{rotl,rotr}qi3_1_one_bit_slp.
844         Macroize insn from {rotl,rotr}qi3_1_slp using any_rotate code iterator.
845         (bswap rotatert splitter): Add splitter.
846         (bswap splitter): Macroize splitter using any_rotate code iterator.
847         Add insn predicate to split only for TARGET_USE_XCHGB or when
848         optimizing function for size.
849
850 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
851
852         * config/pa/pa.c (emit_move_sequence): Remove use of
853         deleted variable flag_argument_noalias.
854
855 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
856
857         * config.gcc: Removed *-*-solaris2.7* from list of obsolete
858         configurations.
859         Add to unsupported targets list.
860         * configure.ac (gcc_cv_as_tls): Removed i[34567]86-*-solaris2.[567]*,
861         sparc*-sun-solaris2.[567]* from target lists.
862         * configure: Regenerate.
863         * doc/install.texi (Specific, *-*-solaris2*): Document Solaris 7
864         removal.
865         Remove Solaris 7 patch references.
866         (Specific, sparc-sun-solaris2.7): Removed.
867         (sparc-sun-solaris2*): Update Solaris 7 example.
868         (sparc64-*-solaris2*): Likewise.
869
870 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
871
872         * config.build (alpha*-dec-osf4*): Remove.
873         * config.gcc: Remove alpha*-dec-osf4*, alpha-dec-osf5.0* from list
874         of obsolete configurations.
875         (alpha*-dec-osf[45]*): Remove alpha*-dec-osf4*, alpha-dec-osf5.0*
876         support.
877         * config/alpha/t-osf4: Renamed to ...
878         * config/alpha/t-osf5: ... this.
879         * config/alpha/osf.h: Renamed to ...
880         * config/alpha/osf5.h: ... this.
881         Merged old osf5.h contents.
882         Update comments.
883         (ASM_SPEC): Use ASM_OLDAS_SPEC directly.
884         (EXTRA_SPECS): Removed.
885         * doc/install.texi (Specific, alpha*-dec-osf5.1): Renamed to
886         reflect removal of Tru64 UNIX V4.0/V5.0 support.
887         Document that.
888
889 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
890
891         * doc/contrib.texi (Contributors, Rainer Orth): Update.
892
893 2010-04-12  Kai Tietz  <kai.tietz@onevision.com>
894
895         PR/43702
896         * config/i386/i386.c (x86_this_parameter): Handle aggregate for
897         __thiscall convention.
898
899 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
900
901         * config/pa/pa.c (hppa_legitimize_address): Remove unused variable
902         orig_base.
903         * config/pa/pa.md (call, call_value): Remove unused variable call_insn.
904
905 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
906
907         * function.c (assign_parms_initialize_all): Add unused attribute
908         to fntype.
909
910 2010-04-12  Richard Guenther  <rguenther@suse.de>
911
912         * gsstruct.def (GSS_CALL): New.
913         * gimple.def (GIMPLE_CALL): Change to GSS_CALL.
914         * gimple.h: Include tree-ssa-alias.h.
915         (struct gimple_statement_call): New.
916         (union gimple_statement_struct_d): Add gimple_call member.
917         (gimple_call_reset_alias_info): Declare.
918         (gimple_call_use_set): New function.
919         (gimple_call_clobber_set): Likewise.
920         * Makefile.in (GIMPLE_H): Add tree-ssa-alias.h.
921         * gimple.c (gimple_call_reset_alias_info): New function.
922         (gimple_build_call_1): Call it.
923         * lto-streamer-in.c (input_gimple_stmt): Likewise.
924         * tree-inline.c (remap_gimple_stmt): Likewise.
925         (expand_call_inline): Remove callused handling.
926         * cfgexpand.c (update_alias_info_with_stack_vars): Likewise.
927         * tree-dfa.c (dump_variable): Likewise.
928         * tree-parloops.c (parallelize_loops): Likewise.
929         * tree-ssa.c (init_tree_ssa): Likewise.
930         (delete_tree_ssa): Likewise.
931         * tree-flow-inline.h (is_call_used): Remove.
932         * tree-flow.h (struct gimple_df): Remove callused member.
933         * tree-nrv.c (dest_safe_for_nrv_p): Adjust predicate.
934         * tree-ssa-alias.c (dump_alias_info): Remove callused handling.
935         (ref_maybe_used_by_call_p_1): Simplify.
936         (call_may_clobber_ref_p_1): Likewise.
937         * tree-ssa-structalias.c (compute_points_to_sets): Set
938         the call stmt used and clobbered sets.
939         * tree-tailcall.c (suitable_for_tail_opt_p): Adjust predicate.
940         (find_tail_calls): Verify the tail call.
941
942 2010-04-12  Richard Guenther  <rguenther@suse.de>
943
944         * ipa.c (cgraph_postorder): Adjust postorder to guarantee
945         single-iteration always-inline inlining.
946         * ipa-inline.c (cgraph_mark_inline): Do not return anything.
947         (cgraph_decide_inlining): Do not handle always-inline specially.
948         (try_inline): Remove always-inline cycle detection special case.
949         Do not recurse on always-inlines.
950         (cgraph_early_inlining): Do not iterate if not optimizing.
951         (cgraph_gate_early_inlining): remove.
952         (pass_early_inline): Run unconditionally.
953         (gate_cgraph_decide_inlining): New function.
954         (pass_ipa_inline): Use it.  Do not run the IPA inliner if
955         not inlining or optimizing.
956         (cgraph_decide_inlining_of_small_functions): Also consider
957         always-inline functions.
958         (cgraph_default_inline_p): Return true for nodes which should
959         disregard inline limits.
960         (estimate_function_body_sizes): Assume zero size and time for
961         nodes which are marked as disregarding inline limits.
962         (cgraph_decide_recursive_inlining): Do not perform recursive
963         inlining on always-inline nodes.
964
965 2010-04-12  Jakub Jelinek  <jakub@redhat.com>
966
967         PR bootstrap/43699
968         * c-typeck.c (c_process_expr_stmt): Call mark_exp_read even
969         for exprs satisfying handled_component_p.
970
971 2010-04-12  Eric Botcazou  <ebotcazou@adacore.com>
972
973         * expr.c (categorize_ctor_elements_1): Properly count sub-elements of
974         non-constant aggregate elements.
975
976         * gimplify.c (gimplify_init_constructor): Do not pre-evaluate if this
977         is a real initialization.
978
979 2010-04-12  Shujing Zhao  <pearly.zhao@oracle.com>
980
981         PR c/36774
982         * c-decl.c (start_function): Move forward check for nested function.
983
984 2010-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>
985
986         * config/sh/sh-protos.h (sh_legitimize_reload_address): Declare.
987         * config/sh/sh.c: Include reload.h.
988         (sh_legitimize_reload_address): New.
989         * config/sh/sh.h (LEGITIMIZE_RELOAD_ADDRESS): Use
990         sh_legitimize_reload_address.
991
992 2010-04-11  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
993
994         * config/sh/sh.md (*movqi_pop): New insn pattern.
995         * config/sh/predicates.md (sh_no_delay_pop_operand): New predicate.
996
997 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
998
999         * config/i386/i386.md (any_shiftrt): New code iterator.
1000         (shiftrt_insn): New code attribute.
1001         (shiftrt): Ditto.
1002         (<shiftrt_insn><mode>3): Macroize expander from {ashr,lshr}<mode>3
1003         using any_shiftrt code iterator.
1004         (*<shiftrt_insn><mode>3_doubleword): Macroize insn_and_split from
1005         *{ashr,lshr}<mode>3_doubleword using any_shiftrt code iterator.
1006         (*<shiftrt_insn><mode>3_doubleword peephole2): Macroize peephole2
1007         pattern from corresponding peephole2 patterns.
1008         (*<shiftrt_insn><mode>3_1): Macroize insn from *{ashr,lshr}<mode>3_1
1009         using any_shiftrt code iterator.
1010         (*<shiftrt_insn>si3_1_zext): Ditto from *{ashr,lshr}si3_1_zext.
1011         (*<shiftrt_insn>qi3_1_slp): Ditto from *{ashr,lshr}qi3_1_slp.
1012         (*<shiftrt_insn><mode>3_cmp): Ditto from *{ashr,lshr}<mode>3_cmp.
1013         (*<shiftrt_insn><mode>3_cmp_zext): Ditto from
1014         *{ashr,lshr}<mode>3_cmp_zext.
1015         (*<shiftrt_insn><mode>3_cconly): Ditto from *{ashr,lshr}<mode>3_cconly.
1016
1017 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
1018
1019         * config/i386/i386.md (*ashr<mode>3_cconly): Fix wrong mode of
1020         scratch register.
1021         (*lshr<mode>3_cconly): Ditto.
1022
1023 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
1024
1025         * config/i386/i386.md (lshr<mode>3): Macroize expander from
1026         lshr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
1027         (*lshr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1028         pattern from *lshr{di,ti}3_1 and corresponding splitters using
1029         DWI mode iterator.
1030         (*lshr<mode>3_doubleword peephole2): Macroize peephole2 pattern
1031         from corresponding peephole2 patterns.
1032         (*lshr<mode>3_1): Merge with *lshr{qi,hi,si}3_1_one_bit and
1033         *lshrdi3_1_one_bit_rex64. Macroize insn from *lshr{qi,hi,si}3_1
1034         and *lshrdi3_1_rex64 using SWI mode iterator.
1035         (*lshrsi3_1_zext): Merge with *lshrsi3_1_one_bit_zext.
1036         (*lshrqi3_1_slp): Merge with *lshrqi3_1_one_bit_slp.
1037         (*lshr<mode>3_cmp): Merge with *lshr{qi,hi,si}3_one_bit_cmp and
1038         *lshrdi3_one_bit_cmp_rex64. Macroize insn from *lshr{qi,hi,si}3_cmp
1039         and *lshrdi3_cmp_rex64 using SWI mode iterator.
1040         (*lshrsi3_cmp_zext): Merge with *lshrsi3_cmp_one_bit_zext.
1041         (*lshr<mode>3_cconly): Merge with *lshr{qi,hi,si}3_one_bit_cconly and
1042         *lshrdi3_one_bit_cconly_rex64. Macroize insn from
1043         *lshr{qi,hi,si}3_cconly and *lshrdi3_cconly_rex64 using
1044         SWI mode iterator.
1045
1046 2010-04-10  Uros Bizjak  <ubizjak@gmail.com>
1047
1048         * config/i386/i386.md (ashr<mode>3): Macroize expander from
1049         ashr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
1050         (*ashr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1051         pattern from *ashr{di,ti}3_1 and corresponding splitters using
1052         DWI mode iterator.
1053         (*ashr<mode>3_doubleword peephole2): Macroize peephole2 pattern
1054         from corresponding peephole2 patterns.
1055         (ashrdi3_cvt): Rename from ashrdi3_63_rex64.
1056         (ashrsi3_cvt): Rename from ashrsi3_31.
1057         (*ashrsi3_cvt_zext): Rename from *ashrsi3_31_zext.
1058         (x86_shift<mode>_adj_3): Macroize expander from x86_shift_adj_3
1059         and x86_64_shift_adj_3 using SWI48 mode iterator.
1060         (*ashr<mode>3_1): Merge with *ashr{qi,hi,si}3_1_one_bit and
1061         *ashrdi3_1_one_bit_rex64. Macroize insn from *ashr{qi,hi,si}3_1
1062         and *ashrdi3_1_rex64 using SWI mode iterator.
1063         (*ashrsi3_1_zext): Merge with *ashrsi3_1_one_bit_zext.
1064         (*ashrqi3_1_slp): Merge with *ashrqi3_1_one_bit_slp.
1065         (*ashr<mode>3_cmp): Merge with *ashr{qi,hi,si}3_one_bit_cmp and
1066         *ashrdi3_one_bit_cmp_rex64. Macroize insn from *ashr{qi,hi,si}3_cmp
1067         and *ashrdi3_cmp_rex64 using SWI mode iterator.
1068         (*ashrsi3_cmp_zext): Merge with *ashrsi3_cmp_one_bit_zext.
1069         (*ashr<mode>3_cconly): Merge with *ashr{qi,hi,si}3_one_bit_cconly and
1070         *ashrdi3_one_bit_cconly_rex64. Macroize insn from
1071         *ashr{qi,hi,si}3_cconly and *ashrdi3_cconly_rex64 using
1072         SWI mode iterator.
1073         (sign_extend splitters): Update for renamed ashr{di,si}3_cvt patterns.
1074         * config/i386/i386.c (ix86_split_ashr): Update for renamed
1075         x86_shift<mode>_adj_3 expanders.
1076
1077 2010-04-10  Wei Guozhi  <carrot@google.com>
1078
1079         PR target/42601
1080         * config/arm/arm.c (arm_pic_static_addr): New function.
1081         (legitimize_pic_address): Call arm_pic_static_addr when it detects
1082         a static symbol.
1083         (arm_output_addr_const_extra): Output expression for new pattern.
1084         * config/arm/arm.md (UNSPEC_SYMBOL_OFFSET): New unspec symbol.
1085
1086 2010-04-10  Bernd Schmidt  <bernds@codesourcery.com>
1087
1088         * ira-costs.c (record_reg_classes): Ignore alternatives that are
1089         not enabled.
1090
1091         * Makefile.in (web.o): Depend on insn-config.h and $(RECOG_H).
1092         * web.c: Include "insn-config.h" and "recog.h".
1093         (union_match_dups): New function.
1094         (web_main): Call it.
1095         (union_defs): Don't try to recognize match_dups.
1096
1097         * reload1.c (eliminate_regs_in_insn): Don't restore an operand
1098         if doing so would replace the entire pattern.
1099
1100 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
1101
1102         PR target/43707
1103         PR target/43709
1104         * config/i386/i386.md (*ashl<mode>3_doubleword): Split to insn
1105         and splitter pattern.  Change splitter operand 1 predicate to
1106         nonmemory_operand.
1107
1108 2010-04-09  Martin Jambor  <mjambor@suse.cz>
1109
1110         * ipa-cp.c (ipcp_lats_are_equal): Return true also if the two
1111         lattices are addresses of CONST_DECLs with the same initial value.
1112         (ipcp_print_all_lattices): Print values of CONST_DECLs.
1113         * ipa-prop.c (ipa_print_node_jump_functions): Likewise.
1114
1115 2010-04-09  Eric Botcazou  <ebotcazou@adacore.com>
1116             Bernd Schmidt  <bernds@codesourcery.com>
1117
1118         * loop-invariant.c (replace_uses): New static function.
1119         (move_invariant_reg): Use it to ensure we can replace the uses.
1120
1121 2010-04-09  Hariharan Sandanagobalane  <hariharan@picochip.com>
1122
1123         * config/picochip/picochip.c (picochip_rtx_costs): Use correct
1124         function template.
1125         (picochip_override_options): Enable section anchors only above -O1.
1126         (picochip_reorg): Fixed a couple of build warnings.
1127
1128 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1129
1130         * configure.ac (plugin -rdynamic test): Log result.
1131         * configure: Regenerate.
1132         * config/sol2.h (LINK_SPEC): Handle -rdynamic.
1133         (RDYNAMIC_SPEC): Define.
1134         * config/sol2-gld.h (RDYNAMIC_SPEC): Redefine.
1135
1136 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1137
1138         * configure.ac: Determine Sun ld version numbers.
1139         (comdat_group): Restrict GNU ld version checks to gld.
1140         (comdat_group, *-*-solaris2.1[1-9]*): Enable for Sun ld > 1.1688.
1141         (enable_comdat): Support --enable-comdat.
1142         * configure: Regenerate.
1143         * doc/install.texi (Configuration): Document --enable-comdat.
1144
1145 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1146
1147         * config/sparc/sol2-gld.h: Remove SPARC reference.  Rename ...
1148         * config/sol2-gld.h: ... here.
1149         * config.gcc (sparc*-*-solaris2*): Reflect this.
1150         (i[34567]86-*-solaris2*): Use it.
1151
1152 2010-04-09  Steve Ellcey  <sje@cup.hp.com>
1153
1154         * config/ia64/ia64.c (ia64_dfa_new_cycle): Remove unused variable
1155         setup_clocks_p.
1156         (final_emit_insn_group_barriers): Remove unused variable prev_insn.
1157
1158 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1159
1160         PR 42965
1161         * diagnostic.c (diagnostic_initialize): Initialize
1162         some_warnings_are_errors.
1163         (diagnostic_finish): New.
1164         (diagnostic_action_after_output): Call it before exiting.
1165         (diagnostic_report_diagnostic): Do not print message here. Set
1166         some_warnings_are_errors.
1167         * diagnostic.h (diagnostic_context): Delete
1168         issue_warnings_are_errors_message. Add some_warnings_are_errors.
1169         (diagnostic_finish): Declare.
1170         * toplev.c (toplev_main): Call it before exit.
1171
1172 2010-04-09  Jason Merrill  <jason@redhat.com>
1173
1174         PR c++/42623
1175         * c-common.c (c_sizeof_or_alignof_type): Return error_mark_node
1176         for incomplete type.
1177
1178         PR c++/41788
1179         * stor-layout.c (finalize_record_size): Don't change TYPE_PACKED
1180         based on a warning flag.
1181
1182 2010-04-09  Richard Guenther  <rguenther@suse.de>
1183
1184         * tree-pretty-print.c (dump_generic_node): Dump TYPE_VECTOR_SUBPARTS.
1185
1186 2010-04-09  Iain Sandoe  <iains@gcc.gnu.org>
1187
1188         PR bootstrap/43684
1189         * varasm.c (default_assemble_visibility): Wrap vars that are
1190         set, but unused, by targets without GAS.
1191         * config/rs6000/rs6000.c: (paired_emit_vector_compare):
1192         Remove set, but unused, vars.
1193         (rs6000_legitimize_tls_address): Likewise.
1194         (altivec_expand_dst_builtin): Likewise.
1195         * config/darwin.c (machopic_classify_symbol): Likewise.
1196         (machopic_indirection_name): Likewise.
1197
1198 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
1199
1200         * config/i386/i386.md (DWI): New mode iterator.
1201         (S): New mode attribute.
1202         (shift_operand): Ditto.
1203         (shift_immediate_operand): Ditto.
1204         (ashl_input_operand): Ditto.
1205         (ashl<mode>3): Macroize expander from ashl{qi,hi,si,di,ti}3_1
1206         using SDWIM mode iterator.
1207         (*ashl<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1208         pattern from *ashl{di,ti}3_1 and corresponding splitters using
1209         DWI mode iterator.
1210         (*ashl<mode>3_doubleword peephole2): Macroize peephole2 pattern
1211         from corresponding peephole2 patterns.
1212         (x86_shift<mode>_adj_1): Macroize expander from x86_shift_adj_1
1213         and x86_64_shift_adj_1 using SWI48 mode iterator.
1214         (x86_shift<mode>_adj_2): Ditto.
1215         (*ashldi3_1_rex64): Split TYPE_LEA pattern.
1216         (*ashl<mode>3_1): Macroize insn from *ashlsi3_1 and *ashldi3_1_rex64
1217         using SWI48 mode iterator.
1218         (*ashl<mode>3_cmp): Macroize insn from *ashl{qi,hi,si}3_cmp and
1219         *ashldi3_cmp_rex64 using SWI mode iterator.
1220         (*ashl<mode>3_cconly): Macroize insn from *ashl{qi,hi,si}3_cconly and
1221         *ashldi3_cconly_rex64 using SWI mode iterator.
1222         * config/i386/i386.c (ix86_split_ashl): Update for renamed
1223         x86_shift<mode>_adj_{1,2}.
1224         (ix86_split_ashr): Ditto.
1225         (ix86_split_lshr): Ditto.
1226
1227 2010-04-09  Richard Guenther  <rguenther@suse.de>
1228
1229         * target.h (builtin_conversion): Pass in input and output types.
1230         * targhooks.c (default_builtin_vectorized_conversion): Adjust.
1231         * targhooks.h (default_builtin_vectorized_conversion): Likewise.
1232         * tree-vect-stmts.c (vectorizable_conversion): Adjust.
1233         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Adjust.
1234
1235         * config/i386/i386.c (ix86_vectorize_builtin_conversion): Adjust.
1236         Handle AVX modes.
1237         * config/rs6000/rs6000.c (rs6000_builtin_conversion): Adjust.
1238
1239 2010-04-09  Richard Guenther  <rguenther@suse.de>
1240
1241         PR target/43152
1242         * config/i386/sse.md (vcond<mode>): Handle AVX modes as well.
1243
1244 2010-04-09  Richard Guenther  <rguenther@suse.de>
1245
1246         * tree-vectorizer.h (struct _stmt_vec_info): Document
1247         that vectype is the type of the LHS.
1248         (supportable_widening_operation, supportable_narrowing_operation):
1249         Get both input and output vector types as arguments.
1250         (vect_is_simple_use_1): Declare.
1251         (get_same_sized_vectype): Likewise.
1252         * tree-vect-loop.c (vect_determine_vectorization_factor):
1253         Set STMT_VINFO_VECTYPE to the vector type of the def.
1254         (vectorizable_reduction): Adjust.
1255         * tree-vect-patterns.c (vect_recog_widen_mult_pattern):
1256         Adjust.  Specify the output vector type.
1257         (vect_pattern_recog_1): Adjust.
1258         * tree-vect-stmts.c (get_same_sized_vectype): New function.
1259         (vectorizable_call): Adjust.
1260         (vectorizable_conversion): Likewise.
1261         (vectorizable_operation): Likewise.
1262         (vectorizable_type_demotion): Likewise.
1263         (vectorizable_type_promotion): Likewise.
1264         (vect_analyze_stmt): Set STMT_VINFO_VECTYPE to the vector type of
1265         the def.
1266         (vect_is_simple_use_1): New function.
1267         (supportable_widening_operation): Get both input and output
1268         vector types.
1269         (supportable_narrowing_operation): Likewise.
1270         * tree-vect-slp.c (vect_schedule_slp_instance): Adjust.
1271
1272 2010-04-09  Kai Tietz  <kai.tietz@onevision.com>
1273
1274         * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Add
1275         __thiscall and _thiscall as predefined macros.
1276         * config/i386/i386.c (ix86_handle_cconv_attribute): Add
1277         thiscall attribute handling.
1278         (ix86_comp_type_attributes): Likewise.
1279         (ix86_function_regparm): Likewise.
1280         (ix86_return_pops_args): Likewise.
1281         (init_cumulative_args): Likewise.
1282         (find_drap_reg): Likewise.
1283         (ix86_static_chain): Likewise.
1284         (x86_this_parameter): Likewise.
1285         (x86_output_mi_thunk): Likewise.
1286         (ix86_attribute_table): Add description for thiscall attribute.
1287         * config/i386/i386.h (ix86_args): Adjust comment for member fastcall.
1288         * doc/extend.texi: Add documentation for thiscall.
1289
1290 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1291
1292         PR c++/28584
1293         * c.opt (Wint-to-pointer-cast): Available in C++.
1294         * doc/invoke.texi (Wint-to-pointer-cast): Available in C++.
1295
1296 2010-04-08  Eric Botcazou  <ebotcazou@adacore.com>
1297
1298         * tree.h (TREE_ADDRESSABLE): Document its effect for function types.
1299         * calls.c (expand_call): Pass the function type to aggregate_value_p.
1300         * function.c (aggregate_value_p): Do not honor DECL_BY_REFERENCE on
1301         the target function of a CALL_EXPR.  Honor TREE_ADDRESSABLE on the
1302         function type instead.  Reorder and simplify checks.
1303
1304         * gimplify.c (gimplify_modify_expr_rhs) <WITH_SIZE_EXPR>: New case.
1305
1306 2010-04-08  Jing Yu  <jingyu@google.com>
1307             Zdenek Dvorak  <ook@ucw.cz>
1308
1309         PR tree-optimization/42720
1310         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Move one-time
1311         loop unswitch conditions here from ...
1312         (tree_unswitch_single_loop): ... here.
1313
1314 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
1315
1316         * tree-if-conv.c: Fix comments and simplify logic.
1317
1318 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
1319
1320         * tree-if-conv.c (if_convertible_loop_p): Remove unused parameter.
1321         (tree_if_conversion): Same.  Update call to if_convertible_loop_p.
1322         (main_tree_if_conversion): Update call to tree_if_conversion.
1323
1324 2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1325
1326         PR 42485
1327         * doc/invoke.texi (-b,-V): Delete.
1328         * doc/tm.texi: Do not mention -b.
1329         * gcc.c (display_help): Delete -b and -V.
1330         (process_command): Delete -b and -V.
1331         * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.
1332
1333 2010-04-08  Christian Borntraeger  <borntraeger@de.ibm.com>
1334             Wolfgang Gellerich  <gellerich@de.ibm.com>
1335
1336         Implement target hook for loop unrolling
1337         * target.h (loop_unroll_adjust): Add a new target hook function.
1338         * target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
1339         * doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
1340         * config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
1341         (s390_loop_unroll_adjust): Implement the new target hook for s390.
1342         * loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll
1343         target hook.
1344         (decide_unroll_stupid): Likewise.
1345
1346 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1347
1348         PR target/43643
1349         * config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.
1350
1351 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1352
1353         * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
1354         (Specific, *-*-solaris2*): Likewise.
1355         Don't prefer Sun as over GNU as.
1356
1357 2010-04-08  Wolfgang Gellerich  <gellerich@de.ibm.com>
1358
1359         * config/s390/s390.c (override_options): Adjust the z10
1360           defaults for max-unroll-times, max-completely-peeled-insns
1361           and max-completely-peel-times.
1362
1363 2010-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1364
1365         * config/s390/s390.c (s390_expand_movmem): Issue prefetch
1366         instructions for z10.
1367         (s390_expand_setmem): Likewise.
1368         (s390_expand_cmpmem): Likewise.
1369
1370 2010-04-08  Richard Guenther  <rguenther@suse.de>
1371
1372         PR tree-optimization/43679
1373         * tree-ssa-pre.c (eliminate): Only propagate copies.
1374
1375 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
1376
1377         PR bootstrap/43681
1378         * expr.c (block_move_libcall_safe_for_call_parm): Avoid
1379         set but not used variable warning.
1380
1381 2010-04-08  Wei Guozhi  <carrot@google.com>
1382
1383         PR target/41653
1384         * config/arm/arm.c (thumb1_size_rtx_costs): New function.
1385         (arm_size_rtx_costs): Call the new function when optimized for size.
1386
1387 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
1388
1389         PR debug/43670
1390         * cfgexpand.c (expand_debug_expr): If for non-NULL offset
1391         op0 is not a MEM, just return NULL instead of assertion
1392         failure.
1393         (discover_nonconstant_array_refs): Don't walk debug stmts.
1394
1395 2010-04-08  Doug Kwan  <dougkwan@google.com>
1396
1397         * configure.ac: Recognize gold and do not use its version number
1398         to test ld features.
1399         * configure: Regenerate.
1400
1401 2010-04-08  Maxim Kuvyrkov  <maxim@codesourcery.com>
1402
1403         PR middle-end/40815
1404         * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
1405         (negate_value): Move code to push elements to broken_up_substracts ...
1406         (eliminate_plus_minus_pair): ... here.  Push operands that have no
1407         negative pair to plus_negates.
1408         (repropagate_negates, init_reassoc, fini_reassoc): Update.
1409
1410 2010-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1411
1412         * doc/install.texi (Configuration): Move description of
1413         --enable-lto, --with-libelf*, --enable-gold from Java section to
1414         general section.
1415
1416         * doc/generic.texi (Working with declarations)
1417         (Function Properties, C and C++ Trees): Fix typos.
1418         * doc/sourcebuild.texi (Top Level): Likewise.
1419
1420 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
1421
1422         PR c/18624
1423         * tree.h (DECL_READ_P): Define.
1424         (struct tree_decl_common): Add decl_read_flag.
1425         * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
1426         a set but not used warning.
1427         (merge_decls): Merge DECL_READ_P flag.
1428         (finish_decl, build_compound_literal): Set DECL_READ_P flag.
1429         (finish_function): Issue -Wunused-but-set-parameter diagnostics.
1430         * c-common.c (handle_used_attribute, handle_unused_attribute):
1431         Likewise.
1432         * c-tree.h (default_function_array_read_conversion, mark_exp_read):
1433         New prototypes.
1434         * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
1435         New functions.
1436         (default_conversion, c_process_expr_stmt): Call mark_exp_read.
1437         * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
1438         c_parser_binary_expression, c_parser_cast_expression,
1439         c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
1440         Call default_function_array_read_conversion instead of
1441         default_function_array_conversion where needed.
1442         (c_parser_unary_expression, c_parser_conditional_expression,
1443         c_parser_postfix_expression_after_primary, c_parser_initelt):
1444         Likewise.  Call mark_exp_read where needed.
1445         (c_parser_statement_after_labels, c_parser_asm_operands,
1446         c_parser_typeof_specifier, c_parser_sizeof_expression,
1447         c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
1448         where needed.
1449         * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
1450         New.
1451         * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
1452         (warn_unused_but_set_parameter): Default to warn_unused
1453         && extra_warnings.
1454         * doc/invoke.texi: Document -Wunused-but-set-variable and
1455         -Wunused-but-set-parameter.
1456
1457         * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
1458         used count variable.
1459         * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
1460         when operandN variables aren't used in the body of the expander
1461         or splitter.
1462         * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
1463         FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
1464         * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
1465         * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
1466         FOR_EACH_IMM_USE_ON_STMT): Likewise.
1467         * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
1468         * tree.c (PROCESS_ARG): Likewise.
1469
1470 2010-04-07  Simon Baldwin  <simonb@google.com>
1471
1472         * diagnostic.h (diagnostic_override_option_index): New macro to
1473         set a diagnostic's option_index.
1474         * c-tree.h (c_cpp_error): Add warning reason argument.
1475         * opts.c (_warning_as_error_callback): New.
1476         (register_warning_as_error_callback): Store callback for
1477         warnings enabled via enable_warning_as_error.
1478         (enable_warning_as_error): Call callback, minor code tidy.
1479         * opts.h (register_warning_as_error_callback): Declare.
1480         * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
1481         response to -Werror=.
1482         (c_common_init_options): Register warning_as_error_callback in opts.c.
1483         * common.opt: Add -Wno-cpp option.
1484         * c-common.c (struct reason_option_codes_t): Map cpp warning
1485         reason codes to gcc option indexes.
1486         * (c_option_controlling_cpp_error): New function, lookup the gcc
1487         option index for a cpp warning reason code.
1488         * (c_cpp_error): Add warning reason argument, call
1489         c_option_controlling_cpp_error for diagnostic_override_option_index.
1490         * doc/invoke.texi: Document -Wno-cpp.
1491
1492 2010-04-07  Richard Guenther  <rguenther@suse.de>
1493
1494         * ipa-reference.c (mark_load): Use get_base_address.
1495         (mark_store): Likewise.
1496
1497         * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
1498         inserting GIMPLE_NOPs into the IL.
1499         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1500         Explicitly strip handled components and indirect references.
1501
1502         * fold-const.c (fold_unary_loc): Do not strip qualifiers when
1503         folding address expressions.
1504         * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
1505         * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
1506         operand_equal_p to compare decls.
1507         (ptr_deref_may_alias_decl_p): Likewise.
1508         * tree-ssa-operands.c (get_asm_expr_operands): Simplify
1509         * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
1510         Handle reversed comparison ops.
1511         * tree-sra.c (asm_visit_addr): Use get_base_address.
1512         * ipa-prop.c (visit_store_addr_for_mod_analysis): Use get_base_address.
1513         * ipa-reference.c (mark_address): Use get_base_address.
1514
1515 2010-04-07  Richard Guenther  <rguenther@suse.de>
1516
1517         * tree-ssa-forwprop.c (forward_propagate_addr_expr):
1518         Propagate constants everywhere.
1519
1520 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
1521
1522         PR debug/43516
1523         * tree.c (MAX_INT_CACHED_PREC): Define.
1524         (nonstandard_integer_type_cache): New array.
1525         (build_nonstandard_integer_type): Cache results for precision
1526         <= MAX_INT_CACHED_PREC.
1527
1528 2010-04-07  Richard Guenther  <rguenther@suse.de>
1529
1530         * doc/invoke.texi (-fargument-alias, -fargument-noalias,
1531         -fargument-noalias-global, -fargument-noalias-anything): Remove.
1532         * common.opt: Likewise.
1533         * tree-ssa-structalias.c (intra_create_variable_infos): Adjust comment.
1534         * alias.c (base_alias_check): Remove flag_argument_noalias handling.
1535         (nonoverlapping_memrefs_p): Likewise.
1536         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1537         * opts.c (common_handle_option): Handle OPT_fargument_alias,
1538         OPT_fargument_noalias, OPT_fargument_noalias_anything and
1539         OPT_fargument_noalias_global for backward compatibility.
1540
1541 2010-04-07  Richard Guenther  <rguenther@suse.de>
1542
1543         PR tree-optimization/43270
1544         * tree-vrp.c (check_array_ref): Fix flexible array member detection.
1545         * tree-ssa-sccvn.h (fully_constant_vn_reference_p): Declare.
1546         * tree-ssa-pre.c (phi_translate_1): Adjust.
1547         (fully_constant_expression): Split out vn_reference handling to ...
1548         * tree-ssa-sccvn.c (fully_constant_vn_reference_p): ... here.
1549         Fold reads from constant strings.
1550         (vn_reference_lookup): Handle fully constant references.
1551         (vn_reference_lookup_pieces): Likewise.
1552         * Makefile.in (expmed.o-warn): Add -Wno-error.
1553
1554 2010-04-07  Martin Jambor  <mjambor@suse.cz>
1555
1556         * tree-sra.c (find_param_candidates): Allow scalar va_list types.
1557
1558 2010-04-07  Iain Sandoe  <iains@gcc.gnu.org>
1559
1560         PR driver/41594
1561         * gcc.c: Add -static-libstdc++ to list of recognized options.
1562
1563 2010-04-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1564
1565         * config.gcc (i[34567]86-*-solaris2*): Default with_tune_32 to generic.
1566
1567 2010-04-07  Richard Guenther  <rguenther@suse.de>
1568
1569         PR middle-end/42617
1570         * expr.c (expand_expr_real_1): For TARGET_MEM_REFs with pointer
1571         bases build simple mem attributes to retain points-to information.
1572
1573 2010-04-07  Richard Guenther  <rguenther@suse.de>
1574
1575         PR middle-end/42617
1576         * alias.c (ao_ref_from_mem): Without MEM_OFFSET or MEM_SIZE
1577         preserve points-to related information.
1578
1579 2010-04-07  Richard Guenther  <rguenther@suse.de>
1580
1581         PR middle-end/42617
1582         * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not
1583         discard plain indirect references.
1584         * fold-const.c (operand_equal_p): Guard against NULL_TREE type.
1585         * tree.c (tree_nop_conversion): Likewise.
1586
1587 2010-04-07  Dodji Seketeli  <dodji@redhat.com>
1588
1589         PR debug/43628
1590         * dwarf2out.c (modified_type_die): Ignore artificial typedefs.
1591
1592 2010-04-06  Kai Tietz  <kai.tietz@onevision.com>
1593
1594         * config/i386/i386.c (ix86_handle_cconv_attribute): Ignore
1595         calling convention attributes on METHOD_TYPEs for w64 ABI, too.
1596
1597 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1598
1599         * tree-if-conv.c: Fix indentation and comments.
1600
1601 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1602
1603         * tree-if-conv.c: Sort static functions in topological order.
1604
1605 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1606
1607         * tree-if-conv.c: Fix indentation and comments.
1608
1609 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1610
1611         PR middle-end/43519
1612         * graphite-clast-to-gimple.c (max_signed_precision_type): Use
1613         lang_hooks.types.type_for_size instead of
1614         build_nonstandard_integer_type.
1615         When converting an unsigned type to signed, double its precision.
1616         (gcc_type_for_interval): Use lang_hooks.types.type_for_size.
1617         (gcc_type_for_iv_of_clast_loop): Call max_signed_precision_type.
1618         (graphite_create_new_loop_guard): When ub + 1 wraps around,
1619         use lb <= ub.
1620
1621 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1622
1623         PR middle-end/43519
1624         * graphite-clast-to-gimple.c (graphite_create_new_loop_guard): Use
1625         POINTER_PLUS_EXPR for pointer types.
1626
1627 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1628
1629         PR middle-end/43519
1630         * Makefile.in (graphite-clast-to-gimple.o): Depends on langhooks.h.
1631         * graphite-clast-to-gimple.c: Include langhooks.h.
1632         (max_signed_precision_type): New.
1633         (max_precision_type): Takes two types as arguments.
1634         (precision_for_value): New.
1635         (precision_for_interval): New.
1636         (gcc_type_for_interval): New.
1637         (gcc_type_for_value): New.
1638         (gcc_type_for_clast_term): New.
1639         (gcc_type_for_clast_red): New.
1640         (gcc_type_for_clast_bin): New.
1641         (gcc_type_for_clast_expr): Split up into several functions.
1642         (gcc_type_for_clast_eq): Rewritten.
1643         (compute_bounds_for_level): New.
1644         (compute_type_for_level_1): New.
1645         (compute_type_for_level): New.
1646         (gcc_type_for_cloog_iv): Removed.
1647         (gcc_type_for_iv_of_clast_loop): Rewritten.
1648         (graphite_create_new_loop): Compute the lower and upper bound types
1649         with gcc_type_for_clast_expr.
1650         (graphite_create_new_loop_guard): Same.
1651         (find_cloog_iv_in_expr): Removed.
1652         (compute_cloog_iv_types_1): Removed.
1653         (compute_cloog_iv_types): Removed.
1654         (gloog): Do not call compute_cloog_iv_types.
1655         * graphite-sese-to-poly.c (new_gimple_bb): Do not initialize
1656         GBB_CLOOG_IV_TYPES.
1657         (free_data_refs_aux): Do not free GBB_CLOOG_IV_TYPES.
1658         * sese.h (struct gimple_bb): Removed field cloog_iv_types.
1659         (GBB_CLOOG_IV_TYPES): Removed.
1660
1661 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1662
1663         * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Assert that
1664         gimple_phi_num_args of the loop close SSA phi node is equal to 1.
1665         (detect_commutative_reduction): Same.
1666
1667 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1668
1669         * graphite-clast-to-gimple.c (graphite_verify): Remove redundant
1670         call to verify_ssa.  Invoke verify_loop_closed_ssa with an extra
1671         argument.
1672         * graphite-scop-detection.c (canonicalize_loop_closed_ssa_form): Same.
1673         * graphite-sese-to-poly.c (rewrite_reductions_out_of_ssa): Same.
1674         (rewrite_commutative_reductions_out_of_ssa): Same.
1675         * passes.c (execute_function_todo): Call verify_ssa for every pass
1676         in the LNO.  Invoke verify_loop_closed_ssa with an extra argument.
1677         * tree-flow.h (verify_loop_closed_ssa): Update declaration.
1678         * tree-parloops.c (parallelize_loops): Invoke verify_loop_closed_ssa
1679         with an extra argument.
1680         * tree-ssa-loop-manip.c (check_loop_closed_ssa_stmt): Same.  Call
1681         verify_ssa only when the extra argument is true.
1682         (gimple_duplicate_loop_to_header_edge): Invoke verify_loop_closed_ssa
1683         with an extra argument.
1684         (tree_transform_and_unroll_loop): Same.
1685
1686 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1687
1688         * passes.c (execute_function_todo): Call verify_loop_closed_ssa
1689         for all the passes of the LNO having LOOP_CLOSED_SSA.
1690         * tree-if-conv.c (pass_if_conversion): Remove TODO_verify_loops.
1691         * tree-loop-distribution.c (pass_loop_distribution): Same.
1692         * tree-pass.h (TODO_verify_loops): Removed.
1693         * tree-ssa-loop.c (pass_tree_loop_init): Same.
1694         (pass_lim): Same.
1695         (pass_tree_unswitch): Same.
1696         (pass_predcom): Same.
1697         (pass_vectorize): Same.
1698         (pass_linear_transform): Same.
1699         (pass_graphite_transforms): Same.
1700         (pass_iv_canon): Same.
1701         (pass_complete_unroll): Same.
1702         (pass_complete_unrolli): Same.
1703         (pass_parallelize_loops): Same.
1704         (pass_loop_prefetch): Same.
1705         (pass_iv_optimize): Same.
1706
1707 2010-04-06  Changpeng Fang  <changpeng.fang@amd.com>
1708
1709         PR middle-end/32824
1710         * passes.c (init_optimization_passes): Move pass_lim before
1711         pass_copy_prop and pass_dce_loop.
1712
1713 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
1714
1715         PR target/43667
1716         * config/i386/i386.c (bdesc_multi_arg): Use OPTION_MASK_ISA_XOP
1717         instead of OPTION_MASK_ISA_AVX for __builtin_ia32_vpermil2p*.
1718         (ix86_expand_args_builtin): Use V*_FTYPE_* enum codes instead of
1719         MULTI_* defines for 4 argument vpermil2p* builtins.
1720
1721 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
1722
1723         * config/i386/i386-protos.h (x86_maybe_negate_const_int): Declare.
1724         * config/i386/i386.c (x86_maybe_negate_const_int): New.
1725         (x86_output_mi_thunk): Use x86_maybe_negate_const_int.
1726         * config/i386/i386.md (*add<mode>_1, *addsi_1_zext, *addhi_1,
1727         *addhi_1_lea, *addqi_1, *addqi_1_lea, *addqi_1_slp, *add<mode>_2,
1728         *addsi_2_zext, *addhi_2, *addqi_2, *add<mode>_3, *addsi_3_zext,
1729         *addhi_3, *addqi_3,*add<mode>_5, *addhi_5, *addqi_5):
1730         Use x86_maybe_negate_const_int to output insn mnemonic.
1731         (*adddi_4, *addsi_4, *addhi_4, *addqi_4): Ditto.  Remove overflow
1732         check from instruction predicate.  Update comments.
1733         * config/i386/sync.md (sync_add<mode>): Use
1734         x86_maybe_negate_const_int to output insn mnemonic.
1735
1736 2010-04-06  Jan Hubicka  <jh@suse.cz>
1737
1738         PR tree-optimization/42906
1739         * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add
1740         IGNORE_SELF argument.  Set visited_control_parents for fully
1741         processed BBs.
1742         (find_obviously_necessary_stmts): Update call of
1743         mark_control_dependent_edges_necessary.
1744         (propagate_necessity): Likewise.  Handle PHI edges more curefully.
1745
1746 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
1747
1748         * config/i386/i386.md: Remove comment about 'e' and 'E'
1749         operand modifier.
1750
1751 2010-04-06  Richard Guenther  <rguenther@suse.de>
1752
1753         PR tree-optimization/43627
1754         * tree-vrp.c (extract_range_from_unary_expr): Widenings
1755         of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type,
1756         not varying.
1757
1758 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
1759
1760         * BASE-VER: Change to 4.6.0.
1761
1762         PR target/43638
1763         * config/i386/i386.c (print_operand): Remove 'e' and 'E' code
1764         handling.
1765
1766 2010-04-06  Richard Guenther  <rguenther@suse.de>
1767
1768         PR middle-end/43661
1769         * fold-const.c (fold_comparison): Handle X * 0 CMP 0.
1770
1771 2010-04-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1772
1773         * doc/invoke.texi (Optimize Options): Document that LTO
1774         won't remove object access purely due to incompatible
1775         declarations.
1776
1777 2010-04-04  Matthias Klose  <doko@ubuntu.com>
1778
1779         * graphite-sese-to-poly.c (translate_scalar_reduction_to_array):
1780         Initialize variable.
1781
1782 2010-04-03  Richard Guenther  <rguenther@suse.de>
1783
1784         PR middle-end/42509
1785         * alias.c (nonoverlapping_memrefs_p): For spill-slot accesses
1786         require a non-NULL MEM_OFFSET.
1787
1788 2010-04-02  Steven Bosscher  <steven@gcc.gnu.org>
1789
1790         * ada/gcc-interface/Make-lang.in, alias.c, attribs.c, auto-inc-dec.c,
1791         basic-block.h, bb-reorder.c, calls.c, c-common.c, cgraph.h,
1792         collect2.h, config/alpha/alpha.c, config/alpha/alpha.md,
1793         config/alpha/predicates.md, config/arm/arm.md,
1794         config/arm/lib1funcs.asm, config/arm/neon-schedgen.ml,
1795         config/avr/avr.c, config/avr/avr.md, config/bfin/bfin.c,
1796         config/darwin9.h, config/darwin.c, config/darwin.h,
1797         config/h8300/h8300.c, config/i386/cpuid.h, config/i386/cygming.h,
1798         config/i386/cygwin.h, config/i386/mingw32.h, config/i386/msformat-c.c,
1799         config/i386/sol2-10.h, config/i386/xopintrin.h, config/ia64/ia64.c,
1800         config/ia64/ia64.md, config/ia64/sync.md, config/mep/mep.c,
1801         config/mips/mips.md, config/mn10300/mn10300.c,
1802         config/mn10300/mn10300.h, config/pa/pa.c, config/pa/pa.md,
1803         config/rs6000/aix.h, config/rs6000/dfp.md,
1804         config/rs6000/rs6000-builtin.def, config/rs6000/rs6000-c.c,
1805         config/rs6000/vector.md, config/rtems.h, config/rx/rx.md,
1806         config/s390/s390.md, config/sol2-c.c, config/sparc/sol2-bi.h,
1807         config/sparc/sol2-gas.h, config/sparc/sparc.h, config/sparc/sparc.md,
1808         config/sparc/sparc-protos.h, config/spu/spu.c, config/spu/spu-c.c,
1809         config/t-darwin, convert.c, c.opt, c-opts.c, cp/Make-lang.in,
1810         c-pretty-print.c, c-typeck.c, df-core.c, df-scan.c, diagnostic.c,
1811         diagnostic.h, doc/cppopts.texi, doc/cpp.texi, doc/extend.texi,
1812         doc/gimple.texi, doc/languages.texi, doc/plugins.texi, doc/rtl.texi,
1813         doc/standards.texi, doc/tree-ssa.texi, doc/trouble.texi, dominance.c,
1814         fold-const.c, fortran/Make-lang.in, fwprop.c, gcc-plugin.h,
1815         gensupport.c, gimple.h, gimple-iterator.c, graphite.c,
1816         graphite-clast-to-gimple.c, graphite-clast-to-gimple.h,
1817         graphite-dependences.c, graphite-poly.c, graphite-poly.h,
1818         graphite-ppl.c, graphite-ppl.h, graphite-scop-detection.c,
1819         graphite-sese-to-poly.c, graphite-sese-to-poly.h, ifcvt.c, intl.c,
1820         intl.h, ipa.c, ipa-cp.c, ipa-inline.c, ipa-prop.c, ipa-prop.h,
1821         ipa-pure-const.c, ipa-reference.c, ipa-type-escape.c, ira-color.c,
1822         ira-conflicts.c, ira-lives.c, java/Make-lang.in, lambda-code.c,
1823         loop-invariant.c, lto/Make-lang.in, lto-streamer.h, lto-streamer-in.c,
1824         objc/Make-lang.in, objcp/Make-lang.in, omp-low.c, optc-gen.awk,
1825         opt-functions.awk, opth-gen.awk, params.def, passes.c,
1826         postreload-gcse.c, print-tree.c, recog.c, regrename.c, reload.h,
1827         rtl.def, sched-int.h, sched-rgn.c, sel-sched-dump.c, sese.c, sese.h,
1828         store-motion.c, stor-layout.c, tree-cfgcleanup.c, tree-chrec.c,
1829         tree-complex.c, tree-data-ref.c, tree.def, tree-eh.c, tree-flow.h,
1830         tree-flow-inline.h, tree.h, tree-loop-distribution.c, tree-outof-ssa.c,
1831         tree-parloops.c, tree-pass.h, tree-predcom.c, tree-profile.c,
1832         tree-scalar-evolution.c, tree-ssa-address.c, tree-ssa-alias.c,
1833         tree-ssa-coalesce.c, tree-ssa-copy.c, tree-ssa-dce.c, tree-ssa-dom.c,
1834         tree-ssa-dse.c, tree-ssa-loop-im.c, tree-ssa-loop-ivcanon.c,
1835         tree-ssa-loop-manip.c, tree-ssa-math-opts.c, tree-ssa-operands.c,
1836         tree-ssa-pre.c, tree-ssa-sccvn.c, tree-ssa-structalias.c,
1837         tree-ssa-uncprop.c, tree-tailcall.c, tree-vect-data-refs.c,
1838         tree-vect-loop.c, tree-vectorizer.h, tree-vect-slp.c, tree-vrp.c,
1839         unwind-dw2-fde-darwin.c, varpool.c: Update copyright years.
1840
1841 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1842
1843         PR other/43620
1844         * doc/install.texi (Prerequisites): Bump Automake version to 1.11.1.
1845         * aclocal.m4: Regenerate.
1846
1847 2010-04-02  Richard Guenther  <rguenther@suse.de>
1848
1849         PR tree-optimization/43629
1850         * tree-ssa-ccp.c (likely_value): Reset all_undefined_operands
1851         if we have seen a constant value.
1852
1853 2010-04-02  Joseph Myers  <joseph@codesourcery.com>
1854
1855         * read-rtl.c (read_rtx_1): Give an error for EOF while looking for ']'.
1856
1857 2010-04-02  Richard Earnshaw  <rearnsha@arm.com>
1858
1859         PR target/43469
1860         * arm.c (legitimize_tls_address): Adjust call to
1861         gen_tls_load_dot_plus_four.
1862         (arm_note_pic_base): New function.
1863         (arm_cannot_copy_insn_p): Use it.
1864         * thumb2.md (tls_load_dot_plus_four): Rework to avoid use of '+' in
1865         constraint.
1866
1867 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1868
1869         PR bootstrap/43531
1870
1871         Revert:
1872         2009-09-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1873
1874         * Makefile.in ($(out_object_file)): Depend on
1875         gt-$(basename $(notdir $(out_file))).h.
1876
1877 2010-04-01  Ralf Corsépius <ralf.corsepius@rtems.org>
1878
1879         * config.gcc (lm32-*-rtems*): Add t-lm32.
1880
1881 2010-04-01  Joel Sherrill <joel.sherrill@oarcorp.com>
1882
1883         * config.gcc: Add lm32-*-rtems*.
1884         * config/lm32/rtems.h: New file.
1885
1886 2010-04-01  Dave Korn  <dave.korn.cygwin@gmail.com>
1887
1888         PR target/42609
1889         * config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.
1890
1891 2010-04-01  Jakub Jelinek  <jakub@redhat.com>
1892
1893         * dwarf2out.c (output_compilation_unit_header): For
1894         -gdwarf-4 use version 4 instead of version 3.
1895         (output_line_info): For version 4 and above emit additional
1896         maximum ops per insn header field.
1897         (DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN): Define.
1898
1899         * dwarf2out.c (is_c_family, is_java): Remove.
1900         (lower_bound_default): New function.
1901         (add_bound_info, gen_descr_array_type_die): Use it.
1902
1903 2010-04-01  Dodji Seketeli  <dodji@redhat.com>
1904
1905         PR debug/43325
1906         * dwarf2out.c (gen_variable_die): Allow debug info for variable
1907         re-declaration when it happens in a function.
1908
1909 2010-04-01  Aldy Hernandez  <aldyh@redhat.com>
1910
1911         * cgraph.c (cgraph_add_function_insertion_hook): Update comment.
1912         (cgraph_remove_function_insertion_hook): Same.
1913         (cgraph_call_function_insertion_hooks): Same.
1914
1915 2010-04-01  Richard Guenther  <rguenther@suse.de>
1916
1917         PR middle-end/43614
1918         * tree-ssa-address.c (copy_mem_ref_info): Copy TREE_SIDE_EFFECTS
1919         and TREE_THIS_VOLATILE.
1920         (copy_ref_info): Likewise.
1921         * tree-ssa-operands.c (get_tmr_operands): Check TREE_THIS_VOLATILE.
1922         * tree.c (build6_stat): Ignore side-effects of all but arg5
1923         for TARGET_MEM_REF.  Set TREE_THIS_VOLATILE from arg5 of
1924         TARGET_MEM_REF.
1925
1926 2010-04-01  Richard Guenther  <rguenther@suse.de>
1927
1928         PR tree-optimization/43607
1929         * ipa-type-escape.c (check_call): Do not access non-existing
1930         arguments.
1931
1932 2010-04-01  Richard Guenther  <rguenther@suse.de>
1933
1934         PR middle-end/43602
1935         Revert
1936         2010-03-30  Seongbae Park <seongbae.park@gmail.com>
1937                     Jack Howarth <howarth@bromo.med.uc.edu>
1938
1939         * tree-profile.c (tree_init_ic_make_global_vars): Make static
1940         variables TLS.
1941
1942 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1943
1944         * doc/install.texi (Prerequisites): Document libelf usability on
1945         IRIX 5/6 and Solaris 2.
1946         (Specific, i?86-*-solaris2.10): No 64-bit default configuration.
1947         Update GNU as, GNU ld requirements.
1948         (Specific, *-*-solaris2*): Document Solaris 7 obsoletion, removal.
1949         Document Sun Studio compiler download.
1950         Update and simplify as, ld recommendations.
1951         (Specific, *-*-solaris2.7): Note obsoletion, removal.
1952
1953 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1954
1955         * config.gcc (i[34567]86-*-solaris2*): Default with_arch_32,
1956         with_tune_32 to pentium4.
1957
1958 2010-04-01  Uros Bizjak  <ubizjak@gmail.com>
1959
1960         * config/i386/cpuid.h (__get_cpuid_max): Move misplaced comment.
1961
1962 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1963
1964         * doc/install.texi (Specific, mips-sgi-irix5): Document IRIX 5
1965         obsoletion, removal.
1966         Update IDO URL.
1967         Document GNU as requirement.
1968         Update configure requirements.
1969         (Specific, mips-sgi-irix6): Document IRIX 6 < 6.5 obsoletion, removal.
1970         Recomment IRIX 6.5.18+.
1971         Document IDF/IDL requirement.
1972         Document GNU as requirement.
1973         Document GNU ld bootstrap failure.
1974         Remove freeware.sgi.com reference.
1975
1976 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1977
1978         * doc/install.texi (Specific, alpha*-dec-osf*): Document Tru64
1979         UNIX V4.0, V5.0 obsoletion, removal.
1980         Remove --with-gc=simple reference.
1981         Update VM requirements during bootstrap.
1982         Remove -oldas bootstrap description.
1983         Update binutils reference.
1984         Remove comparison failure note.
1985
1986 2010-03-31  Richard Guenther  <rguenther@suse.de>
1987             Zdenek Dvorak  <ook@ucw.cz>
1988             Sebastian Pop  <sebastian.pop@amd.com>
1989
1990         PR middle-end/43464
1991         * tree-ssa-copy.c (init_copy_prop): Handle loop close phi nodes
1992         with multiple arguments.
1993         (execute_copy_prop): Remove call to rewrite_into_loop_closed_ssa.
1994
1995 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
1996
1997         * graphite-dependences.c (print_pddr): Call print_pdr with an
1998         extra argument.
1999         * graphite-poly.c (debug_pdr): Add an extra argument for the
2000         verbosity level.
2001         (print_pdr): Same.
2002         (print_pbb_domain): Same.
2003         (print_pbb): Same.
2004         (print_scop_context): Same.
2005         (print_scop): Same.
2006         (print_cloog): Same.
2007         (debug_pbb_domain): Same.
2008         (debug_pbb): Same.
2009         (print_pdrs): Same.
2010         (debug_pdrs): Same.
2011         (debug_scop_context): Same.
2012         (debug_scop): Same.
2013         (debug_cloog): Same.
2014         (print_scop_params): Same.
2015         (debug_scop_params): Same.
2016         (print_iteration_domain): Same.
2017         (print_iteration_domains): Same.
2018         (debug_iteration_domain): Same.
2019         (debug_iteration_domains): Same.
2020         (print_scattering_function): Same.
2021         (print_scattering_functions): Same.
2022         (debug_scattering_function): Same.
2023         (debug_scattering_functions): Same.
2024         * graphite-poly.h (debug_pdr): Update declaration.
2025         (print_pdr): Same.
2026         (print_pbb_domain): Same.
2027         (print_pbb): Same.
2028         (print_scop_context): Same.
2029         (print_scop): Same.
2030         (print_cloog): Same.
2031         (debug_pbb_domain): Same.
2032         (debug_pbb): Same.
2033         (print_pdrs): Same.
2034         (debug_pdrs): Same.
2035         (debug_scop_context): Same.
2036         (debug_scop): Same.
2037         (debug_cloog): Same.
2038         (print_scop_params): Same.
2039         (debug_scop_params): Same.
2040         (print_iteration_domain): Same.
2041         (print_iteration_domains): Same.
2042         (debug_iteration_domain): Same.
2043         (debug_iteration_domains): Same.
2044         (print_scattering_function): Same.
2045         (print_scattering_functions): Same.
2046         (debug_scattering_function): Same.
2047         (debug_scattering_functions): Same.
2048
2049 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2050
2051         * graphite-poly.c (print_scattering_function_1): New.
2052         (print_scattering_function): Call it.
2053         (print_scop_params): Remove spaces at the end of lines.
2054         (print_cloog): New.
2055         (debug_cloog): New.
2056         * graphite-poly.h (print_cloog): Declared.
2057         (debug_cloog): Declared.
2058
2059 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2060
2061         * graphite-sese-to-poly.c (graphite_loop_normal_form): Add the IV bump
2062         in loop->header.
2063         * tree-flow.h (canonicalize_loop_ivs): Updated declaration.
2064         * tree-parloops.c (gen_parallel_loop): Add the IV bump in loop->latch.
2065         * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Add a new parameter
2066         to switch between adding the IV bump in loop->latch or in loop->header.
2067
2068 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2069
2070         * graphite-poly.c (print_scattering_function): Pretty print following
2071         the scoplib format.
2072         (print_pdr): Same.
2073         (print_pbb_domain): Same.
2074         (dump_gbb_cases): Same.
2075         (dump_gbb_conditions): Same.
2076         (print_pdrs): Same.
2077         (print_pbb): Same.
2078         (print_scop_params): Same.
2079         (print_scop_context): Same.
2080         (print_scop): Same.
2081         (print_pbb_body): New.
2082         (lst_indent_to): New.
2083         (print_lst): Start new lines with a #.
2084         * graphite-poly.h (pbb_bb): New.
2085         (pbb_index): Use pbb_bb.
2086         * graphite-ppl.c (ppl_print_powerset_matrix): Print the number of
2087         disjuncts.
2088         * tree-data-ref.c (dump_data_reference): Start new lines with a #.
2089
2090 2010-03-31  Jakub Jelinek  <jakub@redhat.com>
2091
2092         * dwarf2out.c (size_of_die): For -gdwarf-4 use
2093         uleb128 size instead of fixed 1 or 2 for dw_val_class_loc
2094         and 0 instead of 1 for dw_val_class_flag.
2095         (value_format): For -gdwarf-4 use DW_FORM_sec_offset for
2096         dw_val_class_range_list, dw_val_class_loc_list,
2097         dw_val_class_lineptr and dw_val_class_macptr, use
2098         DW_FORM_flag_present for dw_val_class_flag and
2099         DW_FORM_exprloc for dw_val_class_loc.
2100         (output_die): For -gdwarf-4 print dw_val_class_loc
2101         size as uleb128 instead of 1 or 2 bytes and don't print
2102         anything for dw_val_class_flag.
2103
2104         * var-tracking.c (vt_init_cfa_base): Use cselib_lookup_from_insn
2105         instead of cselib_lookup following by tweaking locs->setting_insn.
2106
2107         PR bootstrap/43596
2108         * cselib.c (cselib_process_insn): Clear cselib_current_insn
2109         even before returning from label, setjmp call or volatile asm
2110         handling.
2111
2112 2010-03-31  Richard Guenther  <rguenther@suse.de>
2113
2114         PR middle-end/43600
2115         * cgraphunit.c (cgraph_output_in_order): Do not allocate
2116         temporary data on stack.
2117
2118 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2119
2120         * config/sparc/sysv4.h (PUSHSECTION_FORMAT): Remove undef.
2121         (PUSHSECTION_ASM_OP): Remove.
2122         (POPSECTION_ASM_OP): Remove.
2123         (PUSHSECTION_FORMAT): Remove.
2124         * config/sol2.h (PUSHSECTION_FORMAT): Define.
2125         * config/sparc/sol2.h [!USE_GAS] (PUSHSECTION_FORMAT): Redefine.
2126         * config/sol2.c (solaris_output_init_fini): Use it.
2127
2128 2010-03-31  Jie Zhang  <jie@codesourcery.com>
2129
2130         PR 43574
2131         * opt-functions.awk (var_type_struct): Use signed char type
2132         for simple variables.
2133
2134 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2135
2136         * config/sol2.c: Include output.h.
2137         (solaris_assemble_visibility): New function.
2138         * config/t-sol2 (sol2.o): Add output.h dependency.
2139         * config/sol2-protos.h (solaris_assemble_visibility): Declare.
2140         * config/sol2.h [!USE_GAS] (TARGET_ASM_ASSEMBLE_VISIBILITY):
2141         Redefine.
2142
2143 2010-03-31  Jakub Jelinek  <jakub@redhat.com>
2144
2145         PR target/43580
2146         * config/arm/arm.c (arm_save_coproc_regs): Use Pmode instead of
2147         V2SImode or XFmode on PRE_DEC.
2148
2149         PR debug/43557
2150         * cfgexpand.c (expand_debug_expr): Handle VOIDmode mode like
2151         BLKmode.
2152
2153 2010-03-31  Jie Zhang  <jie@codesourcery.com>
2154
2155         PR 43562
2156         * reload.h (caller_save_initialized_p): Declare.
2157         * toplev.c (backend_init_target): Don't call
2158         init_caller_save but set caller_save_initialized_p to false.
2159         * caller-save.c (caller_save_initialized_p): Define.
2160         (init_caller_save): Check caller_save_initialized_p.
2161         * ira.c (ira): Call init_caller_save if flag_caller_saves.
2162
2163 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2164
2165         PR target/39048
2166         * config.gcc (i[34567]86-*-solaris2*): Add i386/t-fprules-softfp
2167         and soft-fp/t-softfp to tmake_file.
2168         * config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Redefine.
2169         (LIBGCC2_TF_CEXT): Define.
2170         (TF_SIZE): Define.
2171
2172 2010-03-30  Alexandre Oliva  <aoliva@redhat.com>
2173
2174         PR debug/42977
2175         * cselib.c (n_useless_values): Document handling of debug locs.
2176         (n_useless_debug_values, n_debug_values): New variables.
2177         (new_elt_loc_list): Don't add to debug values, keep count.
2178         (promote_debug_loc): New.
2179         (cselib_reset_table): Zero new variables.
2180         (entry_and_rtx_equal_p): Promote debug locs.
2181         (discard_useless_locs): Increment n_useless_debug_values for
2182         debug values.
2183         (remove_useless_values): Adjust n_useless_values and n_debug_values
2184         with n_useless_debug_values.
2185         (add_mem_for_addr): Promote debug locs.
2186         (cselib_lookup_mem): Likewise.
2187         (cselib_lookup_addr): Renamed to...
2188         (cselib_lookup_addr_1): ... this.  Promote debug locs.  Don't call...
2189         (cselib_log_lookup): ... this.  Turn into...
2190         (cselib_lookup_addr): ... new wrapper.
2191         (cselib_lookup_from_insn): New.
2192         (cselib_invalidate_regno): Increment n_useless_debug_values for
2193         debug values.
2194         (cselib_invalidate_mem): Likewise.
2195         (cselib_process_insn): Take n_deleted and n_debug_values into
2196         account to guard remove_useless_value call.
2197         (cselib_finish): Zero n_useless_debug_values.
2198         * cselib.h (cselib_lookup_from_insn): Declare.
2199         * sched-deps.c (sched_analyze_1): Use cselib_lookup_from_insn.
2200         (sched_analyze_2): Likewise.
2201
2202 2010-03-30  Jakub Jelinek  <jakub@redhat.com>
2203
2204         * var-tracking.c (use_narrower_mode_test, use_narrower_mode): New
2205         functions.
2206         (adjust_mems): Replace narrowing SUBREG of expression containing
2207         just PLUS, MINUS, MULT and ASHIFT of registers and constants
2208         with operations in the narrower mode.
2209
2210         PR debug/43593
2211         * var-tracking.c (dataflow_set_clear_at_call): Invalidate just
2212         regs_invalidated_by_call instead all call_used_reg_set registers.
2213
2214 2010-03-30  Sebastian Pop  <sebastian.pop@amd.com>
2215
2216         PR middle-end/43430
2217         * tree-vect-slp.c (vect_get_and_check_slp_defs): Replace type
2218         pointer comparisons with types_compatible_p.
2219         * tree-vect-stmts.c (vectorizable_call): Same.
2220         (vectorizable_condition): Same.
2221
2222 2010-03-30  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2223
2224         * config/s390/s390.c (s390_emit_prologue): Omit issuing a dynamic
2225         stack check if the mask would be zero.
2226
2227 2010-03-30  Seongbae Park <seongbae.park@gmail.com>
2228             Jack Howarth <howarth@bromo.med.uc.edu>
2229
2230         * tree-profile.c (tree_init_ic_make_global_vars): Make static
2231         variables TLS.
2232
2233 2010-03-30  Joseph Myers  <joseph@codesourcery.com>
2234
2235         PR other/25232
2236         * libgcc-std.ver (GCC_4.5.0): Define version.  Include __unordxf2
2237         and __unordtf2.
2238         * config/bfin/libgcc-bfin.ver (GCC_4.5.0): Define version.
2239         Include ___unordxf2 and ___unordtf2.
2240         * config/i386/libgcc-glibc.ver: Do not define inheritance from
2241         GCC_4.4.0 here.
2242
2243 2010-03-30  Tarik Graba  <tarik.graba@telecom-paristech.fr>
2244
2245         * config/lm32/t-lm32: New file.
2246         * config.gcc: Use the above file when targetting lm32.
2247
2248 2010-03-28  Duncan Sands  <baldrick@free.fr>
2249
2250         * Makefile.in (PLUGIN_HEADERS): Add except.h.
2251
2252 2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>
2253
2254         PR middle-end/43431
2255         * tree-vect-loop.c (vect_estimate_min_profitable_iters):
2256         Improve vectorization cost model diagnostic.
2257
2258 2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>
2259
2260         PR middle-end/43436
2261         * tree-vect-data-refs.c (vect_analyze_data_refs): When
2262         compute_data_dependences_for_loop returns false, early exit
2263         and output an extra diagnostic for the failed data reference
2264         analysis.
2265
2266 2010-03-29  Richard Guenther  <rguenther@suse.de>
2267
2268         PR tree-optimization/43560
2269         * tree-ssa-loop-im.c (ref_always_accessed_p): Add store_p parameter.
2270         (can_sm_ref_p): Treat stores to readonly locations as trapping.
2271
2272 2010-03-29  Jie Zhang  <jie@codesourcery.com>
2273
2274         PR 43564
2275         * toplev.c (process_options): Set optimization_default_node
2276         and optimization_current_node.
2277         * opts.c (decode_options): Don't set optimization_default_node
2278         and optimization_current_node.
2279
2280 2010-03-29  Ralf Corsépius  <ralf.corsepius@rtems.org>
2281
2282         * config/rtems.h: Abandon -qrtems_debug.
2283
2284 2010-03-28  Jan Hubicka  <jh@suse.cz>
2285
2286         PR tree-optimization/43505
2287         * cgraph.c (cgraph_clone_node): When clonning a clone, replacement
2288         map should not be copied.
2289
2290 2010-03-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2291
2292         PR middle-end/41674
2293         * cgraphunit.c (cgraph_build_static_cdtor): If target doesn't have
2294         cdtors, set DECL_PRESERVE_P.
2295         * ipa.c (cgraph_externally_visible_p): Return true if declaration
2296         should be preseved.
2297
2298 2010-03-27  Uros Bizjak  <ubizjak@gmail.com>
2299
2300         PR tree-optimization/43528
2301         * stor-layout.c (place_field): Check that constant fits into
2302         unsigned HWI when skipping calculation of MS bitfield layout.
2303
2304 2010-03-27  Jan Hubicka  <jh@suse.cz>
2305
2306         PR middle-end/43391
2307         * varasm.c (make_decl_rtl): Deal with COMMON flag to make
2308         notice_global_symbol work.
2309
2310 2010-03-27  Jakub Jelinek  <jakub@redhat.com>
2311
2312         * dwarf2out.c (dwarf2_debug_hooks): Use dwarf2out_function_decl
2313         instead of dwarf2out_decl.
2314         (struct var_loc_node): Remove section_label field.
2315         (dwarf2out_function_decl): New function.
2316         (dwarf2out_var_location): Don't set section_label field.
2317         (dwarf2out_begin_function): Don't empty decl_loc_table here.
2318
2319 2010-03-26  Michael Meissner  <meissner@linux.vnet.ibm.com>
2320
2321         PR tree-optimization/43544
2322         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION):
2323         First argument for builtin vectorized function hook is now a
2324         tree to be able to distinguish between machine specific and
2325         standard builtins.
2326         * targhooks.c (default_builtin_vectorized_function): Ditto.
2327         * targhooks.h (default_builtin_vectorized_function): Ditto.
2328         * target.h (struct gcc_target): Ditto.
2329         * tree-vect-stmts.c (vectorizable_function): Ditto.
2330         * config/i386/i386.c (ix86_builtin_vectorized_function): Ditto.
2331         * config/rs6000/rs6000.c (rs6000_builtin_vectorized_function):
2332         Ditto.
2333
2334 2010-03-26  Joseph Myers  <joseph@codesourcery.com>
2335
2336         PR c/43381
2337         * c-decl.c (get_parm_info): Assert that decl going in OTHERS has a
2338         nested binding iff it is a FUNCTION_DECL.
2339         (store_parm_decls_newstyle): Pass nested=true to bind for
2340         FUNCTION_DECLs amongst parameters.
2341
2342 2010-03-26  Jakub Jelinek  <jakub@redhat.com>
2343
2344         * var-tracking.c (vt_expand_loc_callback): Don't run
2345         cselib_expand_value_rtx_cb in dummy mode if
2346         cselib_dummy_expand_value_rtx_cb returned false.
2347
2348         * var-tracking.c (emit_note_insn_var_location): For one part
2349         notes with offset 0, don't add EXPR_LIST around the location.
2350         * dwarf2out.c (loc_descriptor, dw_loc_list_1,
2351         add_location_or_const_value_attribute): Adjust for that change.
2352
2353         PR debug/43540
2354         * dwarf2out.c (reg_save): For DW_CFA_expression put regnum
2355         into first operand and location into second.
2356         (dw_cfi_oprnd1_desc): Return dw_cfi_oprnd_reg_num instead of
2357         dw_cfi_oprnd_loc for DW_CFA_expression.
2358         (dw_cfi_oprnd2_desc): Return dw_cfi_oprnd_loc for DW_CFA_expression.
2359         (output_cfa_loc, output_cfa_loc_raw): For DW_CFA_expression
2360         assume first argument is regnum and second argument is location.
2361
2362 2010-03-26  Uros Bizjak  <ubizjak@gmail.com>
2363
2364         PR target/42113
2365         * config/alpha/alpha.md (*cmp_sadd_si): Change mode
2366         of scratch register to DImode.  Split to DImode comparison operator.
2367         Use SImode subreg of scratch register in the multiplication.
2368         (*cmp_sadd_sidi): Ditto.
2369         (*cmp_ssub_si): Ditto.
2370         (*cmp_ssub_sidi): Ditto.
2371
2372 2010-03-26  Uros Bizjak  <ubizjak@gmail.com>
2373
2374         PR target/43524
2375         * config/i386/i386.c (ix86_expand_prologue) [TARGET_STACK_PROBE]:
2376         Remove invalid assert and wrong comment.
2377
2378 2010-03-26  Jakub Jelinek  <jakub@redhat.com>
2379
2380         PR debug/43516
2381         * flags.h (final_insns_dump_p): New extern.
2382         * final.c (final_insns_dump_p): New variable.
2383         (rest_of_clean_state): Set it before -fdump-final-insns=
2384         dumping, clear afterwards.
2385         * print-rtl.c (print_rtx): If final_insns_dump_p don't dump
2386         MEM_ALIAS_SET on MEMs.
2387
2388 2010-03-26  David S. Miller  <davem@davemloft.net>
2389
2390         * configure.ac: Fix sparc GOTDATA_OP bug check.
2391         * configure: Rebuild.
2392
2393 2010-03-26  Alan Modra  <amodra@gmail.com>
2394
2395         * config/rs6000/rs6000.md (cmptf_internal2): Correct comparison.
2396
2397 2010-03-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2398
2399         * doc/tm.texi (Sections): Document TLS_COMMON_ASM_OP,
2400         TLS_SECTION_ASM_FLAG.
2401
2402 2010-03-25  Jakub Jelinek  <jakub@redhat.com>
2403
2404         PR bootstrap/43511
2405         * config/i386/i386.c (ix86_code_end): Set DECL_WEAK if TARGET_MACHO.
2406         Clear first_function_block_is_cold.
2407
2408         PR c/43385
2409         * gimplify.c (gimple_boolify): Only recurse on __builtin_expect
2410         argument if the argument is truth_value_p.
2411
2412 2010-03-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
2413
2414         * config/rs6000/constraints.md: Update copyright year for my changes.
2415
2416         PR target/43484
2417         * config/rs6000/rs6000.c (rs6000_split_multireg_move): If r0 is
2418         used in reg+reg addressing, swap registers.
2419
2420 2010-03-24  Jakub Jelinek  <jakub@redhat.com>
2421
2422         PR debug/43293
2423         * target.h (struct gcc_target): Add code_end hook.
2424         * target-def.h (TARGET_ASM_CODE_END): Define to hook_void_void
2425         if not yet defined.
2426         (TARGET_ASM_OUT): Add TARGET_ASM_CODE_END.
2427         * toplev.c (compile_file): Call targetm.asm_out.code_end
2428         hook before unwind info/debug info output.
2429         * config/i386/winnt.c (i386_pe_file_end): Don't call ix86_file_end.
2430         * config/i386/linux.h (NEED_INDICATE_EXEC_STACK): Don't define.
2431         (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
2432         * config/i386/linux64.h (NEED_INDICATE_EXEC_STACK): Don't define.
2433         (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
2434         * config/i386/i386.c (ix86_file_end): Renamed to...
2435         (ix86_code_end): ... this.  Make static.  Don't call
2436         file_end_indicate_exec_stack.  Emit unwind info using
2437         final_start_function/final_end_function.
2438         (darwin_x86_file_end): Remove.
2439         (TARGET_ASM_CODE_END): Define.
2440         * config/i386/i386.h (TARGET_ASM_FILE_END,
2441         NEED_INDICATE_EXEC_STACK): Don't define.
2442         * config/i386/darwin.h (darwin_x86_file_end): Remove prototype.
2443         (TARGET_ASM_FILE_END): Define to darwin_file_end.
2444         * config/i386/i386-protos.h (ix86_file_end): Remove prototype.
2445         * doc/tm.texi (TARGET_ASM_CODE_END): Document.
2446
2447         PR target/43498
2448         * config/i386/i386.c (x86_output_mi_thunk): Call final_start_function
2449         at the beginning and final_end_function at the end.
2450         * config/s390/s390.c (s390_output_mi_thunk): Likewise.
2451
2452 2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2453
2454         * configure.ac (i[34567]86-*-*): Handle Solaris 2/x86 TLS support
2455         and Sun as TLS syntax.
2456         (TLS_SECTION_ASM_FLAG) [on_solaris && !gas_flag]: Define.
2457         * configure: Regenerate.
2458         * config.in: Regenerate.
2459         * varasm.c (TLS_SECTION_ASM_FLAG): Define default.
2460         (default_elf_asm_named_section): Use it.
2461         * config/i386/i386.c (output_pic_addr_const): Lowercase @DTPOFF.
2462         (i386_output_dwarf_dtprel): Likewise.
2463         (output_addr_const_extra): Likewise.
2464         (output_pic_addr_const): Lowercase @GOTTPOFF.
2465         (output_addr_const_extra): Likewise.
2466         (output_pic_addr_const): Lowercase @GOTNTPOFF.
2467         (output_addr_const_extra): Likewise.
2468         (output_pic_addr_const): Lowercase @INDNTPOFF.
2469         (output_addr_const_extra): Likewise.
2470         (output_pic_addr_const): Lowercase @NTPOFF.
2471         (output_addr_const_extra): Likewise.
2472         (output_pic_addr_const): Lowercase @TPOFF.
2473         (output_addr_const_extra): Likewise.
2474         * config/i386/i386.md (*tls_global_dynamic_32_gnu): Lowercase @TLSGD.
2475         (*tls_global_dynamic_64): Likewise.
2476         (*tls_local_dynamic_base_32_gnu): Lowercase @TLSLDM.
2477         (*tls_local_dynamic_base_64): Lowercase @TLSLD.
2478
2479         * defaults.h (TLS_COMMON_ASM_OP): Provide default.
2480         (ASM_OUTPUT_TLS_COMMON): Use it.
2481         * config/i386/sol2-gas.h (TLS_COMMON_ASM_OP): Undef.
2482
2483         PR target/38118
2484         * config.gcc (sparc*-*-solaris2*) [$gas=yes]: Add usegas.h to tm_file.
2485         * config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Move ...
2486         * config/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): ... here.
2487         * config/i386/sol2-10.h (ASM_OUTPUT_ALIGNED_COMMON): Redefine.
2488         * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.
2489         (ASM_DECLARE_OBJECT_NAME) [!USE_GAS]: Redefine.
2490
2491 2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2492
2493         * config/i386/i386.c (override_options): Don't accept
2494         -mtls-dialect=sun any longer.
2495         * config/i386/i386.h (TARGET_SUN_TLS): Define as 0.
2496         * config/i386/i386.md (*tls_global_dynamic_32_sun): Remove.
2497         (*tls_local_dynamic_base_32_sun): Likewise.
2498         * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.
2499
2500 2010-03-24  Jakub Jelinek  <jakub@redhat.com>
2501
2502         PR debug/43508
2503         * dwarf2out.c (mem_loc_descriptor): Don't ICE on
2504         VEC_{MERGE,SELECT,CONCAT,DUPLICATE}.
2505
2506         PR debug/43479
2507         * ira.c (adjust_cleared_regs): New function.
2508         (update_equiv_regs): Adjust cleared_regs in DEBUG_INSNs.
2509
2510         PR debug/19192
2511         PR debug/43479
2512         * cfgexpand.c (gimple_assign_rhs_to_tree): Also set TREE_BLOCK
2513         from gimple_block.
2514         * expr.c (expand_expr_real): Restore previous
2515         curr_insn_source_location and curr_insn_block after
2516         expand_expr_real_1 call.
2517         (expand_expr_real_1) <case SSA_NAME>: Call expand_expr_real
2518         instead of expand_expr_real_1.
2519
2520 2010-03-23  Vladimir Makarov  <vmakarov@redhat.com>
2521
2522         PR rtl-optimization/43413
2523         * ira-color.c (setup_allocno_available_regs_num): Count prohibited
2524         hard regs too.
2525
2526 2010-03-22  James E. Wilson  <wilson@codesourcery.com>
2527
2528         PR target/43348
2529         * ia64.md (call_nogp, call_value_nogp, sibcall_nogp, call_gp,
2530         call_value_gp, sibcall_gp): Use 's' constraint not 'i'.
2531
2532 2010-03-22  H.J. Lu  <hongjiu.lu@intel.com>
2533
2534         * config/i386/i386.c (ix86_target_string): Add -mfma.
2535         Fix a typo in comment.
2536
2537 2010-03-22  Mike Stump  <mikestump@comcast.net>
2538
2539         PR target/23071
2540         * config/rs6000/rs6000.c (darwin_rs6000_special_round_type_align):
2541         Don't overly align based upon packed packed fields.
2542
2543 2010-03-22  Jason Merrill  <jason@redhat.com>
2544
2545         * c-pretty-print.c (pp_c_specifier_qualifier_list) [VECTOR_TYPE]:
2546         Use () rather than [], and move before the element type.
2547
2548 2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2549
2550         * doc/configfiles.texi (Configuration Files): Removed
2551         fixinc/Makefile*, intl/Makefile.*.
2552         * doc/makefile.texi: Fixed markup. Abstract from version
2553         control system used.
2554         (Makefile): Removed obsolete gcc/java/parse.y example.
2555         * doc/sourcebuild.texi: Likewise.
2556         (Top Level): Added config, gnattools, libdecnumber, libgcc,
2557         libgomp, libssp.  Removed fastjar.
2558         (Miscellaneous Docs): Clarify location.
2559         Added COPYING3, COPYING3.LIB.
2560         (Front End Directory): Moved Make-lang.in entry to new subsubsection.
2561
2562 2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2563
2564         PR target/38085
2565         * config/i386/i386.c (x86_function_profiler)
2566         [!NO_PROFILE_COUNTERS]: Fix typo.
2567         * config/i386/gmon-sol2.c (_mcleanup) [__x86_64__]: Use call
2568         instead of callq.
2569
2570 2010-03-22  Janis Johnson  <janis187@us.ibm.com>
2571             Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2572
2573         * doc/sourcebuild.texi (Test Directives): Split into six
2574         subsections, with most of the current text in new subsections
2575         Directives, Selectors, and Final Actions.
2576         (Directives): Split list of test directives into multiple
2577         subsubsections.
2578         (Selectors): Describe use and syntax of selectors.
2579         (Effective-Target Keywords): Describe all existing keywords.
2580         (Add Options): Describe features for dg-add-options.
2581         (Require Support): Describe variants of dg-require-support.
2582         (Final Actions): Describe commands to use in dg-final.
2583
2584 2010-03-22  Michael Matz  <matz@suse.de>
2585
2586         PR middle-end/43475
2587         * recog.c (validate_replace_rtx_group): Replace also in
2588         REG_EQUAL and REG_EQUIV notes.
2589
2590 2010-03-22  Richard Guenther  <rguenther@suse.de>
2591
2592         PR tree-optimization/43390
2593         * tree-vect-stmts.c (get_vectype_for_scalar_type): Make
2594         sure vector extracts are type correct.
2595
2596 2010-03-22  Richard Guenther  <rguenther@suse.de>
2597
2598         PR middle-end/40106
2599         * builtins.c (expand_builtin_pow): Expand pow (x, 1.5) as
2600         x * sqrt (x) even when optimizing for size if the target
2601         has native support for sqrt.
2602
2603 2010-03-22  Jakub Jelinek  <jakub@redhat.com>
2604
2605         * varasm.c (make_decl_rtl_for_debug): Also clear
2606         flag_mudflap for the duration of make_decl_rtl call.
2607
2608         PR debug/43443
2609         * var-tracking.c (add_cselib_value_chains): Remove ASM_OPERANDS
2610         locs from preserved VALUEs.
2611
2612 2010-03-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2613
2614         PR middle-end/42718
2615         * pa.md (movmemsi): Set align to one if zero.
2616         (movmemdi): Likewise.
2617
2618 2010-03-21  Richard Earnshaw  <rearnsha@arm.com>
2619
2620         PR target/42321
2621         * arm.c (arm_output_epilogue): Correctly match VFP pop instructions
2622         with their corresponding prologue pushes.
2623
2624 2010-03-20  Andrew Pinski  <pinskia@gmail.com>
2625
2626         PR target/43156
2627         * config/spu/spu.c (spu_expand_prologue): Don't emit NOTE_INSN_DELETED
2628         at the begining or end.
2629         (spu_expand_epilogue): Likewise.
2630
2631 2010-03-20  Richard Guenther  <rguenther@suse.de>
2632
2633         PR rtl-optimization/43438
2634         * combine.c (make_extraction): Properly zero-/sign-extend an
2635         extraction of the low part of a CONST_INT.  Also handle
2636         CONST_DOUBLE.
2637
2638 2010-03-19  Mike Stump  <mikestump@comcast.net>
2639
2640         * config/i386/darwin.h (SUBTARGET32_DEFAULT_CPU): Add.
2641         * config/i386/i386.c (SUBTARGET32_DEFAULT_CPU): Add.
2642         (override_options): Use SUBTARGET32_DEFAULT_CPU.
2643
2644 2010-03-19  Andrew Pinski  <andrew_pinski@caviumnetworks.com>
2645
2646         PR c/43211
2647         * c-decl.c (grokparms): Set arg_types to NULL_TREE if there was
2648         an error.
2649
2650 2010-03-19  Bernd Schmidt  <bernds@codesourcery.com>
2651
2652         PR rtl-optimization/42258
2653         * ira-lives.c (check_and_make_def_conflict): Ignore conflict for a
2654         use that may match DEF.
2655
2656         PR target/40697
2657         * optabs.c (avoid_expensive_constant): Use rtx_cost to find out
2658         the cost of loading the constant rather than assuming
2659         COSTS_N_INSNS (1).
2660         * config/arm/arm.c (thumb1_rtx_costs) <case CONST_INT>: If the
2661         outer code is AND, do the same tests as the andsi3 expander and
2662         return COSTS_N_INSNS (1) if and is cheap.
2663
2664         * optabs.c (avoid_expensive_constant): Fix formatting.
2665
2666 2010-03-19  Michael Matz  <matz@suse.de>
2667
2668         PR c++/43116
2669         * attribs.c (decl_attributes): When rebuilding a function pointer
2670         type use the same qualifiers as the original pointer type.
2671
2672 2010-03-19  Martin Jambor  <mjambor@suse.cz>
2673
2674         * doc/gimple.texi (Logical Operators): Describe is_gimple_ip_invariant
2675         and is_gimple_ip_invariant_address.
2676
2677 2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2678
2679         Revert
2680         2009-10-01  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2681
2682         * config/arm/arm.c (arm_override_options): Turn off
2683         flag_dwarf2_cfi_asm for AAPCS variants.
2684
2685 2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2686
2687         PR target/43399
2688         * config/arm/arm.c (emit_multi_reg_push): Update comments.
2689         Use PRE_MODIFY instead of PRE_DEC.
2690         (emit_sfm): Use PRE_MODIFY instead of PRE_DEC.
2691         (vfp_emit_fstmd): Likewise.
2692
2693 2010-03-19  Michael Matz  <matz@suse.de>
2694
2695         PR target/43305
2696         * builtins.c (expand_builtin_interclass_mathfn,
2697         expand_builtin_signbit): Use maybe_emit_unop_insn, emit libcalls
2698         if that fails.
2699
2700 2010-03-19  Richard Guenther  <rguenther@suse.de>
2701
2702         PR tree-optimization/43415
2703         * tree-ssa-pre.c (phi_translate): Split out worker to ...
2704         (phi_translate_1): ... this.
2705         (phi_translate): Move all caching here.  Cache all NARY
2706         and REFERENCE translations.
2707
2708 2010-03-19  David S. Miller  <davem@davemloft.net>
2709
2710         With help from Eric Botcazou.
2711         * config/sparc/sparc.c: Include dwarf2out.h.
2712         (emit_pic_helper): Delete.
2713         (pic_helper_symbol_name): Delete.
2714         (pic_helper_emitted_p): Delete.
2715         (pic_helper_needed): New.
2716         (USE_HIDDEN_LINKONCE): Define to '1' if HAVE_GAS_HIDDEN else '0'.
2717         (get_pc_thunk_name): New.
2718         (load_pic_register): Remove 'delay_pic_helper' arg.  Use
2719         get_thunk_pc_name and ggc_strdup to generate PIC thunk symbol.
2720         Set pic_helper_needed to true.  Don't call emit_pic_helper.
2721         (sparc_expand_prologue): Update load_pic_register call.
2722         (sparc_output_mi_thunk): Likewise.
2723         (sparc_file_end): Emit a hidden comdat symbol for the PIC
2724         thunk if possible.  Output CFI information as needed.
2725
2726 2010-03-18  Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
2727             Jack Howarth <howarth@bromo.med.uc.edu>
2728
2729         PR target/36399
2730         * config/i386/i386.h: Fix ABI on darwin x86-32.
2731
2732 2010-03-18  Aldy Hernandez  <aldyh@redhat.com>
2733
2734         * tree.h: Declare make_decl_rtl_for_debug.
2735         * varasm.c (make_decl_rtl_for_debug): New.
2736         * dwarf2out.c (rtl_for_decl_location): Call it.
2737         * cfgexpand.c (expand_debug_expr): Call it.
2738
2739 2010-03-18  Jakub Jelinek  <jakub@redhat.com>
2740
2741         PR bootstrap/43399
2742         * var-tracking.c (adjust_mems) <case POST_MODIFY>: Allow BLKmode
2743         mem_mode.
2744
2745         PR bootstrap/43403
2746         * var-tracking.c (vt_init_cfa_base): Do nothing if
2747         cfa_base_rtx would be hard_frame_pointer_rtx or non-fixed register.
2748
2749 2010-03-18  Alexandre Oliva  <aoliva@redhat.com>
2750
2751         PR debug/42873
2752         * var-tracking.c (canonicalize_vars_star): New.
2753         (dataflow_post_merge_adjust): Use it.
2754
2755 2010-03-18  Jakub Jelinek  <jakub@redhat.com>
2756
2757         PR debug/43058
2758         * var-tracking.c (non_suitable_const): New function.
2759         (add_uses): For DEBUG_INSNs with constants, don't record any
2760         value, instead just the constant value itself.
2761         (compute_bb_dataflow) <case MO_VAL_LOC>: If PAT_VAR_LOCATION_LOC
2762         is not VAR_LOC_UNKNOWN_P, set var to the constant.
2763         (emit_notes_in_bb): Likewise.
2764         (emit_note_insn_var_location): For onepart variables if
2765         cur_loc is a VOIDmode constant, use DECL_MODE.
2766
2767 2010-03-18  Martin Jambor  <mjambor@suse.cz>
2768
2769         PR middle-end/42450
2770         * cgraph.h (cgraph_redirect_edge_call_stmt_to_callee): Declare.
2771         * cgraphunit.c (cgraph_materialize_all_clones): Update calls in
2772         all non-clones.  Moved call redirection...
2773         (cgraph_redirect_edge_call_stmt_to_callee): ...to this new function.
2774         (cgraph_materialize_all_clones): Dispose of all
2775         combined_args_to_skip bitmaps.
2776         (verify_cgraph_node): Do not check for edges pointing to wrong
2777         nodes in inline clones.
2778         * tree-inline.c (copy_bb): Call
2779         cgraph_redirect_edge_call_stmt_to_callee.
2780         * ipa.c (cgraph_remove_unreachable_nodes): Call
2781         cgraph_node_remove_callees even when there are used clones.
2782
2783 2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>
2784
2785         * config/i386/libgcc-glibc.ver: Make GCC_4.5.0 inherit GCC_4.4.0.
2786
2787 2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>
2788
2789         PR target/43383
2790         * config/i386/libgcc-glibc.ver: Add __extendxftf2 to GCC_4.5.0
2791         for 32bit.
2792
2793 2010-03-18  Michael Matz  <matz@suse.de>
2794
2795         PR middle-end/43419
2796         * builtins.c (expand_builtin_pow): Don't transform pow(x, 0.5)
2797         into sqrt(x) if we need to preserve signed zeros.
2798
2799 2010-03-18  Steven Bosscher  <steven@gcc.gnu.org>
2800             Eric Botcazou  <ebotcazou@adacore.com>
2801
2802         PR rtl-optimization/43360
2803         * loop-invariant.c (move_invariant_reg): Remove the REG_EQUAL
2804         note if we don't know its invariant status.
2805
2806 2010-03-18  Michael Matz  <matz@suse.de>
2807
2808         PR tree-optimization/43402
2809         * tree-cfgcleanup.c (cleanup_control_expr_graph): Don't follow
2810         PHI chains of ssa names registered for update.
2811
2812 2010-03-17  Peter Bergner  <bergner@vnet.ibm.com>
2813
2814         PR target/42427
2815         * config/rs6000/rs6000.c (rs6000_split_multireg_move): Add support for
2816         non-offsettable and pre_modify update addressing.
2817         * config/rs6000/dfp.md (*movdd_hardfloat32): Make the "0", "1"
2818         and "2" alternatives "#".
2819         (*movdd_softfloat32): Make all alternatives "#";
2820         * config/rs6000/rs6000.md (DIFD): New define_mode_iterator.
2821         (*movdf_hardfloat32): Make the "0", "1" and "2" alternatives "#".
2822         (*movdf_softfloat32): Make all alternatives "#";
2823         (movdi): Use the new DIFD mode iterator to create a common splitter
2824         for movdi, movdf and movdd patterns.
2825
2826 2010-03-18  Shujing Zhao  <pearly.zhao@oracle.com>
2827
2828         * common.opt (dumpdir): Remove redundant tab.
2829
2830 2010-03-17  Martin Jambor  <mjambor@suse.cz>
2831
2832         PR tree-optimization/43347
2833         * tree-sra.c (create_access_replacement): Set TREE_NO_WARNING when the
2834         original base is DECL_ARTIFICIAL or DECL_IGNORED_P.
2835
2836 2010-03-17  Bernd Schmidt  <bernd.schmidt@analog.com>
2837
2838         PR rtl-optimization/42216
2839         * regrename.c (create_new_chain): New function, broken out from...
2840         (scan_rtx_reg): ... here.  Call it.  Handle the case where we are
2841         appending a use to an empty chain.
2842         (build_def_use): Remove previous changes that convert OP_INOUT to
2843         OP_OUT operands; instead detect the case where an OP_INOUT operand
2844         uses a previously untracked register and create an empty chain for it.
2845
2846 2010-03-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2847
2848         * doc/extend.texi (Function Attributes): Rewrite unfinished
2849         sentence in ms_abi documentation.
2850
2851 2010-03-17  Alan Modra  <amodra@gmail.com>
2852
2853         * config/rs6000/linux64.opt (mprofile-kernel): Use profile_kernel var.
2854         * config/rs6000/linux64.h (TARGET_PROFILE_KERNEL): Define.
2855         (SUBSUBTARGET_OVERRIDE_OPTIONS): Don't use SET_PROFILE_KERNEL.
2856         * config/rs6000/rs6000.c (SET_PROFILE_KERNEL): Don't define.
2857
2858 2010-03-16  Richard Henderson  <rth@redhat.com>
2859
2860         PR middle-end/43365
2861         * tree-eh.c (replace_goto_queue): Also replace in the eh_seq.
2862         (lower_try_finally): Save and restore eh_seq around the expansion
2863         of the try-finally.
2864
2865 2010-03-16  Aldy Hernandez  <aldyh@redhat.com>
2866
2867         * graphite-sese-to-poly.c (split_reduction_stmt): Skip debug
2868         statements before splitting block.
2869
2870 2010-03-16  Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2871
2872         * doc/sourcebuild.texi (Testsuites): Fix markup.
2873         Use pathnames relative to gcc/testsuite.
2874         (Test Directives): Move description of how timeout is determined.
2875         (Ada Tests): Favor gnat.exp over ada/acats/tests/gcc.
2876         (C Tests): Correct gcc.misc-tests directory.
2877         Framework tests now live in gcc.test-framework.
2878
2879 2010-03-16  Richard Guenther  <rguenther@suse.de>
2880
2881         PR middle-end/43379
2882         * tree-cfg.c (gimple_merge_blocks): When propagating virtual PHI
2883         operands make sure to merge SSA_NAME_OCCURS_IN_ABNORMAL_PHI properly.
2884
2885 2010-03-16  Aldy Hernandez  <aldyh@redhat.com>
2886             Alexandre Oliva  <aoliva@redhat.com>
2887
2888         PR tree-optimization/42917
2889         * lambda-code.c (remove_iv): Skip debug statements.
2890         (lambda_loopnest_to_gcc_loopnest): Likewise.
2891         (not_interesting_stmt): Debug statements are not interesting.
2892
2893 2010-03-16  Jakub Jelinek  <jakub@redhat.com>
2894
2895         PR debug/43051
2896         PR debug/43092
2897         * cselib.c (cselib_preserve_constants,
2898         cfa_base_preserved_val): New static variables.
2899         (preserve_only_constants): New function.
2900         (cselib_reset_table): If cfa_base_preserved_val is non-NULL, don't
2901         clear its REG_VALUES.  If cselib_preserve_constants, don't
2902         empty the whole hash table, but preserve there VALUEs with constants,
2903         cfa_base_preserved_val and cfa_base_preserved_val plus constant.
2904         (cselib_preserve_cfa_base_value): New function.
2905         (cselib_invalidate_regno): Don't invalidate cfa_base_preserved_val.
2906         (cselib_init): Change argument to int bitfield.  Set
2907         cselib_preserve_constants to whether CSELIB_PRESERVE_CONSTANTS
2908         is in it.
2909         (cselib_finish): Clear cselib_preserve_constants and
2910         cfa_base_preserved_val.
2911         * cselib.h (enum cselib_record_what): New enum.
2912         (cselib_init): Change argument to int.
2913         (cselib_preserve_cfa_base_value): New prototype.
2914         * postreload.c (reload_cse_regs_1): Adjust cselib_init caller.
2915         * dse.c (dse_step1): Likewise.
2916         * cfgcleanup.c (thread_jump): Likewise.
2917         * sched-deps.c (sched_analyze): Likewise.
2918         * gcse.c (local_cprop_pass): Likewise.
2919         * simplify-rtx.c (simplify_replace_fn_rtx): Add argument to callback.
2920         If FN is non-NULL, call the callback always and whenever it returns
2921         non-NULL just return that.  Only do rtx_equal_p if FN is NULL.
2922         * rtl.h (simplify_replace_fn_rtx): Add argument to callback.
2923         * combine.c (propagate_for_debug_subst): Add old_rtx argument,
2924         compare from with old_rtx and if it isn't rtx_equal_p, return NULL.
2925         * Makefile.in (var-tracking.o): Depend on $(RECOG_H).
2926         * var-tracking.c: Include recog.h.
2927         (bb_stack_adjust_offset): Remove.
2928         (vt_stack_adjustments): Don't call it, instead just gather the
2929         adjustments using insn_stack_adjust_offset_pre_post on each bb insn.
2930         (adjust_stack_reference): Remove.
2931         (compute_cfa_pointer): New function.
2932         (hard_frame_pointer_adjustment, cfa_base_rtx): New static variables.
2933         (struct adjust_mem_data): New type.
2934         (adjust_mems, adjust_mem_uses, adjust_mem_stores, adjust_insn): New
2935         functions.
2936         (get_address_mode): New function.
2937         (replace_expr_with_values): Use it.
2938         (use_type): Don't do cselib_lookup for VAR_LOC_UNKNOWN_P.
2939         Use get_address_mode.  For cfa_base_rtx return MO_CLOBBER.
2940         (adjust_sets): Remove.
2941         (add_uses): Don't add extra MO_VAL_USE for cfa_base_rtx plus constant.
2942         Use get_address_mode.
2943         (get_adjusted_src): Remove.
2944         (add_stores): Don't call it.  Never reuse expr SET.  Don't add extra
2945         MO_VAL_USE for cfa_base_rtx plus constant.  Use get_address_mode.
2946         (add_with_sets): Don't call adjust_sets.
2947         (fp_setter, vt_init_cfa_base): New functions.
2948         (vt_initialize): Change return type to bool.  Move most of pool etc.
2949         initialization to the beginning of the function from end.  Pass
2950         CSELIB_RECORD_MEMORY | CSELIB_PRESERVE_CONSTANTS to cselib_init.
2951         If !frame_pointer_needed, call vt_stack_adjustment before mos
2952         vector is filled, call vt_init_cfa_base if argp/framep has been
2953         eliminated to sp.  If frame_pointer_needed and argp/framep has
2954         been eliminated to hard frame pointer, set
2955         hard_frame_pointer_adjustment and call vt_init_cfa_base after
2956         encountering fp setter in the prologue.  For MO_ADJUST, call
2957         log_op_type before pusing the op into mos vector, not afterwards.
2958         Call adjust_insn before cselib_process_insn/add_with_sets,
2959         call cancel_changes (0) afterwards.
2960         (variable_tracking_main_1): Adjust for vt_initialize calling
2961         vt_stack_adjustments and returning whether it succeeded or not.
2962
2963 2010-03-15  Aldy Hernandez  <aldyh@redhat.com>
2964
2965         * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_deps): Skip
2966         debug statements.
2967
2968 2010-03-15  Jakub Jelinek  <jakub@redhat.com>
2969
2970         * dwarf2out.c (dwarf2out_frame_debug): Don't assert drap_reg
2971         has been set.
2972         (based_loc_descr): Use DW_OP_fbreg for vdrap_reg even when
2973         drap_reg has not been set.
2974
2975 2010-03-15  Michael Matz  <matz@suse.de>
2976
2977         PR middle-end/43300
2978         * tree-outof-ssa.c (emit_partition_copy): New argument sizeexp,
2979         use it to expand block copies.
2980         (insert_partition_copy_on_edge, insert_rtx_to_part_on_edge,
2981         insert_part_to_rtx_on_edge): Adjust callers of emit_partition_copy.
2982         (insert_value_copy_on_edge): Use store_expr for BLKmode values.
2983
2984 2010-03-15  Richard Guenther  <rguenther@suse.de>
2985
2986         PR tree-optimization/43367
2987         * tree-cfg.c (gimple_can_merge_blocks_p): Simplify PHI
2988         elimination check.
2989
2990 2010-03-15  Richard Guenther  <rguenther@suse.de>
2991
2992         PR tree-optimization/43317
2993         * ipa-struct-reorg.c (create_new_general_access): Update stmt.
2994
2995 2010-03-15  Martin Jambor  <mjambor@suse.cz>
2996
2997         PR tree-optimization/43141
2998         * tree-sra.c (create_abstract_origin): New function.
2999         (modify_function): Call create_abstract_origin.
3000
3001 2010-03-15  Chris Demetriou  <cgd@google.com>
3002
3003         * Makefile.in (stmp-int-hdrs): Don't chmod include/stdint.h if it
3004         wasn't copied.
3005
3006 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3007
3008         PR middle-end/43354
3009         * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Do not
3010         call insert_out_of_ssa_copy for default definitions.
3011
3012 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3013
3014         * graphite-clast-to-gimple.c (my_long_long): Defined.
3015         (gcc_type_for_cloog_iv): Use it instead of long_long_integer_type_node.
3016         * graphite-sese-to-poly.c (my_long_long): Defined.
3017         (scop_ivs_can_be_represented): Use it.
3018
3019 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3020
3021         * doc/invoke.texi: Fix documentation of graphite-max-nb-scop-params,
3022         graphite-max-bbs-per-function, and loop-block-tile-size.
3023         * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Replace "maximal"
3024         with "maximum".
3025         (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Same.
3026
3027 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3028
3029         * graphite-clast-to-gimple.c (gcc_type_for_iv_of_clast_loop): Remove
3030         forward declaration.
3031         * graphite-sese-to-poly.c (reduction_phi_p): Remove FIXME comment.
3032         (add_upper_bounds_from_estimated_nit): New.
3033         (build_loop_iteration_domains): Use it.
3034
3035 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3036
3037         * doc/invoke.texi (PARAM_LOOP_BLOCK_TILE_SIZE): Document.
3038
3039 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3040
3041         PR middle-end/43306
3042         * tree-chrec.c (evolution_function_right_is_integer_cst): CHREC_RIGHT
3043         should be an INTEGER_CST.  Also handle CASE_CONVERT.
3044
3045 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3046
3047         * graphite.c (graphite_initialize): To bound the number of bbs per
3048         function, use PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION.
3049         * params.def (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Declared.
3050         * doc/invoke.texi: Document it.
3051
3052 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3053
3054         * graphite-sese-to-poly.c (build_poly_scop): Do not return bool.
3055         * graphite-sese-to-poly.h (build_poly_scop): Same.
3056
3057 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3058
3059         * graphite-sese-to-poly.c (build_poly_scop): Limit scops following
3060         the number of parameters in the scop.  Use as an upper bound
3061         PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS.
3062         * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Declared.
3063         * doc/invoke.texi: Document it.
3064
3065 2010-03-13  Jerry Quinn  <jlquinn@optonline.net>
3066
3067         * Makefile.in (TEXI_GCCINT_FILES): Remove c-tree.texi.
3068         * doc/c-tree.texi: Remove.
3069         * doc/generic.texi: Merge c-tree.texi here.
3070         * doc/gccint.texi (Trees): Remove menu entry.
3071         (c-tree.texi): Remove @include.
3072         * doc/rtl.texi (Reading RTL): Update pxref from Trees to GENERIC.
3073         * doc/languages.texi (Reading RTL): Ditto.
3074
3075 2010-03-12  Steve Ellcey  <sje@cup.hp.com>
3076
3077         PR target/42869
3078         * config/ia64/sync.md (sync_compare_and_swap): Move memory fence.
3079
3080 2010-03-12  Michael Meissner  <meissner@linux.vnet.ibm.com>
3081
3082         PR middle-end/42431
3083         * gcc/config/rs6000/rs6000.c (rs6000_emit_move): Delete band-aid
3084         code added to work around reload clobbering CONST insns.
3085
3086 2010-03-12  Jakub Jelinek  <jakub@redhat.com>
3087
3088         * cselib.c (LONG_TERM_PRESERVED_VALUE_P): Remove.
3089         (cselib_preserve_definitely, cselib_clear_preserve): Remove.
3090         (cselib_preserve_only_values): Remove retain argument, don't
3091         traverse hash table with cselib_{preserve_definitely,clear_preserve}.
3092         * cselib.h (cselib_preserve_only_values): Remove retain argument.
3093         * var-tracking.c (micro_operation): Move insn field before union.
3094         Add DEF_VEC_O and DEF_VEC_ALLOC_O for this type.
3095         (struct variable_tracking_info_def): Remove n_mos field, change
3096         mos into a vector of micro_operations.
3097         (count_uses, count_uses_1, count_stores, count_with_sets): Remove.
3098         (bb_stack_adjust_offset, log_op_type, add_uses, add_stores,
3099         compute_bb_dataflow, emit_notes_in_bb): Adjust for VTI (bb)->mos
3100         changing into a vector.
3101         (add_with_sets): Likewise.  Ensure MO_VAL_USE uops from add_stores
3102         come before all other uops generated by add_stores.
3103         (vt_add_function_parameters): Adjust for cselib_preserve_only_values
3104         argument removal.
3105         (vt_initialize): Likewise.  Adjust for VTI (bb)->mos changing into
3106         a vector.  Run just one pass over the bbs instead of separate counting
3107         and computation phase.
3108         (vt_finalize): Free VTI (bb)->mos vector instead of array.
3109
3110         PR debug/43329
3111         * tree-inline.c (remap_decls): Put old_var rather than origin_var
3112         into *nonlocalized_list vector.
3113         * dwarf2out.c (gen_formal_parameter_die): Call decl_ultimate_origin
3114         even if origin is non-NULL.
3115         (gen_variable_die): Likewise.
3116         (process_scope_var): Don't change origin.
3117         (gen_decl_die): Likewise.
3118         * tree-cfgcleanup.c (remove_forwarder_block): Check single_pred_p
3119         before adding new edges instead of after it, fix moving over
3120         debug stmts.
3121
3122 2010-03-11  David S. Miller  <davem@davemloft.net>
3123
3124         * configure.ac (gcc_cv_as_cfi_advance_working): Skip a multiple
3125         of four.
3126         * configure: Rebuild.
3127
3128 2010-03-11  Martin Jambor  <mjambor@suse.cz>
3129
3130         PR tree-optimization/43257
3131         * tree.c (assign_assembler_name_if_neeeded): New function.
3132         (free_lang_data_in_cgraph): Assembler name assignment moved to the
3133         above new function.
3134         * tree.h (assign_assembler_name_if_neeeded): Declare.
3135         * cgraphunit.c (cgraph_analyze_function): Create an assembler name for
3136         the function if needed.
3137
3138 2010-03-11  Chris Demetriou  <cgd@google.com>
3139
3140         * Makefile.in (stmp-int-hdrs): Make include/unwind.h,
3141         include/stdint-gcc.h, and include/stdint.h world-readable.
3142
3143 2010-03-11  Richard Guenther  <rguenther@suse.de>
3144
3145         PR tree-optimization/43255
3146         * tree-vrp.c (process_assert_insertions_for): Do not insert
3147         asserts for trivial conditions.
3148
3149 2010-03-11  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3150
3151         PR tree-optimization/43280
3152         * tree-ssa-math-opts.c (find_bswap_1): Modify symbolic number
3153         generation.  Move calculation of size out of the if branch.
3154         (find_bswap): Modify compare number generation.
3155
3156 2010-03-11  Richard Guenther  <rguenther@suse.de>
3157
3158         PR lto/43200
3159         * lto-streamer-in.c (maybe_fixup_decls): Simplify.
3160         (input_gimple_stmt): Fixup handled component types during
3161         operand read.  Also fix up decls in ADDR_EXPRs.
3162
3163 2010-03-10  Eric Botcazou  <ebotcazou@adacore.com>
3164
3165         * config/sparc/sol2-bi.h (CC1_SPEC): Default to -mcpu=v9 for -m32.
3166         * config/sparc/t-sol2-64 (MULTILIB_DIRNAMES): Use sparcv8plus.
3167
3168 2010-03-10  Jan Hubicka  <jh@suse.cz>
3169
3170         PR c/43288
3171         * ipa.c (function_and_variable_visibility) Normalize COMMON bits.
3172         * varasm.c (get_variable_section): Don't do that here...
3173         (make_decl_rtl): ... and here.
3174         (do_assemble_alias): Produce decl RTL.
3175         (assemble_alias): Likewise.
3176
3177 2010-03-10  Jakub Jelinek  <jakub@redhat.com>
3178
3179         PR debug/43290
3180         * reg-notes.def (REG_CFA_SET_VDRAP): New note.
3181         * dwarf2out.c (dwarf2out_frame_debug_expr): Remove rule 20 - setting
3182         of fde->vdrap_reg.
3183         (dwarf2out_frame_debug): Handle REG_CFA_SET_VDRAP note.
3184         (based_loc_descr): Only express drap or vdrap regno based expressions
3185         using DW_OP_fbreg when not optimizing.
3186         * config/i386/i386.c (ix86_get_drap_rtx): When not optimizing,
3187         make the vDRAP = DRAP assignment RTX_FRAME_RELATED_P and add
3188         REG_CFA_SET_VDRAP note.
3189
3190 2010-03-10  Alexander Monakov  <amonakov@ispras.ru>
3191
3192         PR tree-optimization/43236
3193         * tree-loop-distribution.c (generate_memset_zero): Fix off-by-one
3194         error in calculation of base address in reverse iteration case.
3195         (generate_builtin): Take number of latch executions if the statement
3196         is in the latch.
3197
3198 2010-03-10  Andrey Belevantsev  <abel@ispras.ru>
3199
3200         PR middle-end/42859
3201         * tree-eh.c: Include pointer-set.h.
3202         (lower_eh_dispatch): Filter out duplicate case labels and
3203         remove the unneeded edge when the label is unused.  Return
3204         true when some edges are removed.
3205         (execute_lower_eh_dispatch): When any lowering resulted in
3206         removing an edge, also delete unreachable blocks.
3207
3208 2010-03-10  Jakub Jelinek  <jakub@redhat.com>
3209
3210         PR bootstrap/43287
3211         * config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
3212         UNSPEC_MACHOPIC_OFFSET.
3213
3214 2010-03-09  Andreas Schwab  <schwab@linux-m68k.org>
3215
3216         PR target/43294
3217         * config/m68k/m68k.c (TARGET_DELEGITIMIZE_ADDRESS): Define.
3218         (m68k_delegitimize_address): New function.
3219
3220 2010-03-09  Jakub Jelinek  <jakub@redhat.com>
3221
3222         PR debug/43299
3223         * dwarf2out.c (const_ok_for_output_1): Return 1 for UNSPECs.
3224
3225         PR debug/43299
3226         * var-tracking.c (adjust_sets): New function.
3227         (count_with_sets, add_with_sets): Use it.
3228         (get_adjusted_src): New inline function.
3229         (add_stores): Use it.
3230
3231         PR debug/43304
3232         * var-tracking.c (vt_expand_loc_callback) <case SUBREG>: If dummy,
3233         call cselib_dummy_expand_value_rtx_cb instead of
3234         cselib_expand_value_rtx_cb.
3235
3236         PR debug/43293
3237         * config/i386/t-i386 (i386.o): Depend on debug.h and dwarf2out.h.
3238         * config/i386/i386.c: Include debug.h and dwarf2out.h.
3239         (ix86_file_end): If dwarf2out_do_cfi_asm (), emit .cfi_startproc
3240         and .cfi_endproc around the pic thunks.
3241         (output_set_got): For TARGET_DEEP_BRANCH_PREDICTION pic, ensure
3242         all queued unwind info register saves are saved before the call.
3243         For !TARGET_DEEP_BRANCH_PREDICTION pic, ensure the call is
3244         considered as sp-=4 for unwind info and the pop as sp+=4 which
3245         also clobbers dest, but doesn't actually restore it.
3246
3247         PR debug/43290
3248         * config/i386/i386.c (ix86_get_drap_rtx): Don't set
3249         RTX_FRAME_RELATED_P.
3250
3251 2010-03-09  Jie Zhang  <jie@codesourcery.com>
3252
3253         * config/arm/arm.md (thumb_mulsi3_v6): Remove trailing
3254         whitespaces in output template.
3255
3256 2010-03-09  Jie Zhang  <jie@codesourcery.com>
3257
3258         * ira-lives.c (check_and_make_def_use_conflict): Don't fall
3259         out array boundary.
3260
3261 2010-03-08  Jakub Jelinek  <jakub@redhat.com>
3262
3263         * Makefile.in (check_gcc_parallelize): Run dg-torture.exp and
3264         builtins.exp in a separate job.
3265
3266 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3267
3268         * graphite-sese-to-poly.c (add_param_constraints): Use
3269         lower_bound_in_type and upper_bound_in_type.
3270
3271 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3272
3273         * graphite-sese-to-poly.c (add_param_constraints): Use sizetype
3274         instead of unsigned_type_node.
3275
3276 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3277             Reza Yazdani  <reza.yazdani@amd.com>
3278
3279         PR middle-end/43065
3280         * graphite-sese-to-poly.c (add_param_constraints): Insert bounds
3281         on pointer type parameters.
3282
3283 2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>
3284
3285         PR middle-end/42644
3286         PR middle-end/42130
3287         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Also
3288         handle conversions from pointer to integers.
3289         (gcc_type_for_cloog_iv): Choose the smalles signed integer as an
3290         induction variable, to be able to work with code generated by CLooG.
3291         * graphite-sese-to-poly.c (scop_ivs_can_be_represented): New.
3292         (build_poly_scop): Bail out if we cannot codegen a loop.
3293
3294 2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>
3295
3296         * graphite-clast-to-gimple.c (translate_clast): Do not short-cut
3297         code generation with gloog_error.
3298
3299 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3300
3301         * sese.c (expand_scalar_variables_ssa_name): Add new argument for type.
3302         Call fold_convert on all the returned values.
3303         (expand_scalar_variables_expr): Pass to
3304         expand_scalar_variables_ssa_name the type of the resulting expression.
3305
3306 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3307
3308         * graphite-ppl.c (ppl_min_for_le_polyhedron): Renamed
3309         ppl_min_for_le_pointset.
3310         Use ppl_Pointset_Powerset_C_Polyhedron_minimize.
3311         * graphite-ppl.h (ppl_min_for_le_polyhedron): Update declaration.
3312
3313 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3314
3315         * graphite-dependences.c (map_into_dep_poly): Removed.
3316         (dependence_polyhedron_1): Use combine_context_id_scat.
3317
3318 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3319
3320         * graphite-poly.h (struct poly_scattering): Add layout documentation.
3321         (struct poly_bb): Same.
3322         (combine_context_id_scat): New.
3323
3324 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3325
3326         PR middle-end/42326
3327         * sese.c (name_defined_in_loop_p): Return false for default
3328         definitions.
3329
3330 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3331
3332         * graphite-clast-to-gimple.c (find_cloog_iv_in_expr): Simplify
3333         and clean up the logic.
3334
3335 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3336
3337         * graphite-sese-to-poly.c (add_param_constraints): Enabled: remove
3338         early return.
3339
3340 2010-03-08  Jakub Jelinek  <jakub@redhat.com>
3341
3342         * var-tracking.c (remove_cselib_value_chains): Define only for
3343         ENABLE_CHECKING.
3344         (dataflow_set_preserve_mem_locs, dataflow_set_remove_mem_locs,
3345         delete_slot_part, emit_notes_for_differences_1): Don't call
3346         remove_cselib_value_chains here.
3347         (set_slot_part, emit_notes_for_differences_2): Don't call
3348         add_cselib_value_chains here.
3349         (preserved_values): New vector.
3350         (preserve_value): New function.
3351         (add_uses, add_stores, vt_add_function_parameters): Use it
3352         instead of cselib_preserve_value.
3353         (changed_values_stack): New vector.
3354         (check_changed_vars_0): New function.
3355         (check_changed_vars_1, check_changed_vars_2): Use it.
3356         (emit_notes_for_changes): Call set_dv_changed (*, false) on all
3357         changed_values_stack VALUEs.
3358         (vt_emit_notes): For all preserved_values call
3359         add_cselib_value_chains.  If ENABLE_CHECKING call
3360         remove_cselib_value_chains before verifying value_chains is empty.
3361         Initialize and free changed_values_stack.
3362         (vt_initialize): Initialize preserved_values.
3363         (vt_finalize): Free preserved_values.
3364
3365 2010-03-08  Richard Guenther  <rguenther@suse.de>
3366
3367         PR tree-optimization/43269
3368         * tree-ssa-dse.c (dse_possible_dead_store_p): Fix post-dom
3369         region detection.
3370
3371 2010-03-08  Martin Jambor  <mjambor@suse.cz>
3372
3373         * ipa-prop.h (struct ipa_param_descriptor): Removed the called field.
3374         (ipa_is_param_called): Removed.
3375         * ipa-prop.c (ipa_note_param_call): Do not set the called flag.
3376         (ipa_print_node_params): Do not print the called flag.
3377         (ipa_write_node_info): Do not stream the called flag.
3378         (ipa_read_node_info): Likewise.
3379
3380 2010-03-07  Jakub Jelinek  <jakub@redhat.com>
3381
3382         PR debug/43176
3383         * Makefile.in (var-tracking.o): Depend on pointer-set.h.
3384         * cselib.c (struct expand_value_data): Add dummy field.
3385         (cselib_expand_value_rtx, cselib_expand_value_rtx_cb): Initialize
3386         dummy to false.
3387         (cselib_dummy_expand_value_rtx_cb): New function.
3388         (cselib_expand_value_rtx_1): If evd->dummy is true, don't allocate
3389         any rtl.
3390         * cselib.h (cselib_dummy_expand_value_rtx_cb): New prototype.
3391         * var-tracking.c: Include pointer-set.h.
3392         (variable): Change n_var_parts to char from int.  Add
3393         cur_loc_changed and in_changed_variables fields.
3394         (variable_canonicalize): Remove.
3395         (shared_var_p): New inline function.
3396         (unshare_variable): Maintain cur_loc_changed and
3397         in_changed_variables fields.  If var was in changed_variables,
3398         replace it there with new_var.  Just copy cur_loc instead of
3399         resetting it to something else.
3400         (variable_union): Don't recompute cur_loc.  Use shared_var_p.
3401         (dataflow_set_union): Don't call variable_canonicalize.
3402         (loc_cmp): If both x and y are DEBUG_EXPRs, compare uids
3403         of their DEBUG_EXPR_TREE_DECLs.
3404         (canonicalize_loc_order_check): Verify that cur_loc is NULL
3405         and in_changed_variables and cur_loc_changed is false.
3406         (variable_merge_over_cur): Clear cur_loc, in_changed_variables
3407         and cur_loc_changed.  Don't update cur_loc here.
3408         (variable_merge_over_src): Don't call variable_canonicalize.
3409         (dataflow_set_preserve_mem_locs): Use shared_var_p.  When
3410         removing loc that is equal to cur_loc, clear cur_loc,
3411         set cur_loc_changed and ensure variable_was_changed is called.
3412         (dataflow_set_remove_mem_locs): Use shared_var_p.  Only
3413         compare pointers in cur_loc check, if it is equal to loc,
3414         clear cur_loc and set cur_loc_changed.  Don't recompute cur_loc here.
3415         (variable_different_p): Remove compare_current_location argument,
3416         don't compare cur_loc.
3417         (dataflow_set_different_1): Adjust variable_different_p caller.
3418         (variable_was_changed): If dv had some var in changed_variables
3419         already, reset in_changed_variables flag for it and propagate
3420         cur_loc_changed over to the new variable.  On empty var
3421         always set cur_loc_changed.  Set in_changed_variables on whatever
3422         var is added to changed_variables.
3423         (set_slot_part): Clear cur_loc_changed and in_changed_variables.
3424         Use shared_var_p.  When removing loc that is equal to cur_loc,
3425         clear cur_loc and set cur_loc_changed.  If cur_loc is NULL at the
3426         end, don't set it to something else, just call variable_was_changed.
3427         (delete_slot_part): Use shared_var_p.  When cur_loc equals to
3428         loc being removed, clear cur_loc and set cur_loc_changed.
3429         Set cur_loc_changed if all locations have been removed.
3430         (struct expand_loc_callback_data): New type.
3431         (vt_expand_loc_callback): Add dummy mode in which no rtxes are
3432         allocated.  Always create SUBREGs if simplify_subreg failed.
3433         Prefer to use cur_loc, when that fails and still in
3434         changed_variables (and seen first time) recompute it.  Set
3435         cur_loc_changed of variables which had to change cur_loc and
3436         compute elcd->cur_loc_changed if any of the subexpressions used
3437         had to change cur_loc.
3438         (vt_expand_loc): Adjust to pass arguments in
3439         expand_loc_callback_data structure.
3440         (vt_expand_loc_dummy): New function.
3441         (emitted_notes): New variable.