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* dwarf2out.c (lower_bound_default): For DW_LANG_Python return
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2
3         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return
4         0 for -gdwarf-4.
5
6 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
7
8         * ira-color.c (allocno_reload_assign): Avoid accumulating
9         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
10
11 2010-04-19  Martin Jambor  <mjambor@suse.cz>
12
13         * gimple.h (create_tmp_reg): Declare.
14         * gimplify.c (create_tmp_reg): New function.
15         (gimplify_return_expr): Use create_tmp_reg.
16         (gimplify_omp_atomic): Likewise.
17         (gimple_regimplify_operands): Likewise.
18         * tree-dfa.c (make_rename_temp): Likewise.
19         * tree-predcom.c (predcom_tmp_var): Likewise.
20         (reassociate_to_the_same_stmt): Likewise.
21         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
22         (get_replaced_param_substitute): Likewise.
23         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
24         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
25         * tree-ssa-pre.c (get_representative_for): Likewise.
26         (create_expression_by_pieces): Likewise.
27         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
28         (create_tailcall_accumulator): Likewise.
29
30 2010-04-19  Martin Jambor  <mjambor@suse.cz>
31
32         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
33         new_stmt.
34         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
35
36 2010-04-19  Richard Guenther  <rguenther@suse.de>
37
38         PR tree-optimization/43796
39         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
40         from SCEV in the lattice.
41         (vrp_visit_phi_node): Dump change.
42
43 2010-04-19  Richard Guenther  <rguenther@suse.de>
44
45         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
46         * configure: Re-generated.
47
48 2010-04-19  Richard Guenther  <rguenther@suse.de>
49
50         PR tree-optimization/43783
51         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
52         constant ARRAY_REF operands two and three if possible.
53
54 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
55
56         PR target/43766
57         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
58
59 2010-04-19  Jie Zhang  <jie@codesourcery.com>
60
61         PR target/43662
62         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
63
64 2010-04-19 Ira Rosen <irar@il.ibm.com>
65
66         PR tree-optimization/37027
67         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions 
68         and macro to access it.
69         (vectorizable_reduction): Add argument.
70         (vect_get_slp_defs): Likewise.
71         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
72         statements for possible use in SLP.
73         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
74         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
75         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
76         add new argument.
77         (vectorizable_reduction): Likewise.
78         * tree-vect-stmts.c (vect_get_vec_defs): Update call to 
79         vect_get_slp_defs.
80         (vectorizable_type_demotion, vectorizable_type_promotion,
81         vectorizable_store): Likewise.
82         (vect_analyze_stmt): Update call to vectorizable_reduction.
83         (vect_transform_stmt): Likewise.
84         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
85         (vect_build_slp_tree): Fix indentation. Check that there are no loads
86         from different interleaving chains in same node.
87         (vect_slp_rearrange_stmts): New function.
88         (vect_supported_load_permutation_p): Allow load permutations for 
89         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
90         inside SLP nodes if necessary.
91         (vect_analyze_slp_instance): Handle reductions.
92         (vect_analyze_slp): Try to build SLP instances originating from groups
93         of reductions.
94         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
95         (vect_get_constant_vectors): Create initial vectors for reductions
96         according to reduction code. Add new argument.
97         (vect_get_slp_defs): Add new argument, pass it to 
98         vect_get_constant_vectors.
99         (vect_schedule_slp_instance): Remove SLP tree root statements.
100
101 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
102
103         * tree.h (ENUM_IS_SCOPED): Define.
104         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
105         for ENUM_IS_SCOPED enums.
106
107 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
108
109         * fold-const.c (fold_comparison): Use ssizetype.
110         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
111         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
112         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
113         * tree-object-size.c (compute_object_sizes): Use size_type_node.
114
115         * tree.h (initialize_sizetypes): Remove parameter.
116         (build_common_tree_nodes): Remove second parameter.
117         * stor-layout.c (initialize_sizetypes): Remove parameter.
118         Always create an unsigned type.
119         (set_sizetype): Assert that the passed type is unsigned and simplify.
120         * tree.c (build_common_tree_nodes): Remove second parameter.
121         Adjust call to initialize_sizetypes.
122         * c-decl.c (c_init_decl_processing): Remove second argument in call to
123         build_common_tree_nodes.
124
125 2010-04-18  Matthias Klose  <doko@ubuntu.com>
126
127         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
128
129 2010-04-18 Ira Rosen <irar@il.ibm.com> 
130
131         PR tree-optimization/43771
132         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
133         load permutation doesn't have gaps.
134
135 2010-04-18  Jan Hubicka  <jh@suse.cz>
136
137         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
138         (sse_prologue_save_insn expander): Use new pattern.
139         (sse_prologue_save_insn1): New pattern and splitter.
140         (sse_prologue_save_insn): Update to deal also with 64bit aligned
141         blocks.
142         * i386.c (setup_incoming_varargs_64): Do not compute jump
143         destination here.
144         (ix86_gimplify_va_arg): Update alignment needed.
145         (ix86_local_alignment): Do not align all local arrays to 128bit.
146
147 2010-04-17  Jan Hubicka  <jh@suse.cz>
148
149         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
150
151 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
152
153         * arm.md (negdi2): Remove redundant code to force values into a
154         register.
155
156 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
157
158         * arm/bpabi.S: Add EABI alignment attributes to objects.
159         * arm/bpabi-v6m.S: Likewise.
160         * arm/crti.asm: Likewise.
161         * arm/crtn.asm: Likewise.
162         * arm/lib1funcs.asm: Likewise.
163         * arm/libunwind.S: Likewise.
164
165 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
166
167         * arm-protos.h (tune_params): New structure.
168         * arm.c (current_tune): New variable.
169         (arm_constant_limit): Delete.
170         (struct processors): Add pointer to the tune parameters.
171         (arm_slowmul_tune): New tuning option.
172         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
173         (all_cores): Adjust to pick up the tuning model.
174         (arm_constant_limit): New function.
175         (arm_override_options): Select the appropriate tuning model.  Delete
176         initialization of arm_const_limit.
177         (arm_split_constant): Use the new constant-limit model.
178         (arm_rtx_costs): Pick up the current tuning model.
179         * arm.md (is_strongarm, is_xscale): Delete.
180         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
181         for Xscale variant architectures.
182         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
183
184 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
185
186         * config/arm/arm.c (arm_gen_constant): Remove unused variable
187         can_shift.
188         (arm_rtx_costs_1): Remove unused variable extra_cost.
189         (arm_unwind_emit_set): Use variable offset.
190         (thumb1_output_casesi): Remove unused variable flags.
191
192 2010-04-16  Jeff Law  <law@redhat.com>
193
194         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
195         needing assignment rather than doing a two-phase assignment.  Remove
196         unused variable 'm'.
197
198 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
199
200         PR bootstrap/43767
201         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
202
203 2010-04-16  Doug Kwan  <dougkwan@google.com>
204
205         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
206         (next_operand_entry_id): New static variable.
207         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
208         (add_to_ops_vec): Assigned unique ID to operand entry.
209         (struct oecount_s): New field ID.
210         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
211         (undistribute_ops_list): Assign unique IDs to oecounts.
212         (init_reassoc): reset next_operand_entry_id.
213
214 2010-04-16  Doug Kwan  <dougkwan@google.com>
215
216         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
217         missing left parenthesis.
218         
219 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
220
221         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
222         *btdi_rex64 using SWI48 mode iterator.
223         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
224         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
225         *jcc_btdi_mask_rex64.
226
227 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
228
229         * double-int.h (tree_to_double_int): Convert to macro.
230         * double-int.c (tree_to_double_int): Remove.
231
232 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
233
234         PR debug/43762
235         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
236         with want_address 2 and in case a single element list might be
237         possible, call it again with want_address 0.
238
239 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
240
241         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
242         case 'W' print operands for HI mode.
243         * config/h8300/h8300.h (Y0, Y2) : New constraints.
244         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
245         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
246         * config/h8300/predicate.md (bit_register_indirect_operand): New.
247
248         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
249
250         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx, 
251         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
252         #xx:3 and #xx:4 mode.
253
254         * config/h8300/h8300.md (inverted load with HImode dest): Add
255         support for H8300SX.
256
257         * config/h8300/predicate.md (bit_operand): Allow immediate values that
258         satisfy 'U' constraint.
259
260 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
261
262         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx
263         flavor.
264         * configure: Regenerate.
265         * config.in: Regenerate.
266         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
267         works.
268
269 2010-04-16  Richard Guenther  <rguenther@suse.de>
270
271         * tree.h (struct tree_decl_minimal): Move pt_uid ...
272         (struct tree_decl_common): ... here.
273         (DECL_PT_UID): Adjust.
274         (SET_DECL_PT_UID): Likewise.
275         (DECL_PT_UID_SET_P): Likewise.
276
277 2010-04-16  Richard Guenther  <rguenther@suse.de>
278
279         PR tree-optimization/43572
280         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
281         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
282         * tree-flow.h (is_call_clobbered): Remove.
283         * tree-flow-inline.h (is_call_clobbered): Likewise.
284         * tree-dfa.c (dump_variable): Do not dump call clobber state.
285         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
286         (execute_return_slot_opt): Adjust.
287         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
288         check for call clobbered vars here.
289         (find_tail_calls): Move tailcall verification to the
290         proper place.
291
292 2010-04-16  Diego Novillo  <dnovillo@google.com>
293
294         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings
295         handled.
296
297 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
298
299         PR target/40603
300         * config/arm/arm.md (cbranchqi4): New pattern.
301         * config/arm/predicates.md (const0_operand,
302         cbranchqi4_comparison_operator): New predicates.
303
304 2010-04-16  Richard Guenther  <rguenther@suse.de>
305
306         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
307         (dump_gimple_stmt): Likewise.
308
309 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
310
311         * recog.h (struct recog_data): New field is_operator.
312         (struct insn_operand_data): New field is_operator.
313         * recog.c (extract_insn): Set recog_data.is_operator.
314         * genoutput.c (output_operand_data): Emit code to set the
315         is_operator field.
316         * reload.c (find_reloads): Use it rather than testing for an
317         empty constraint string.
318
319         PR target/41514
320         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
321         If the previous insn is a cbranchsi4_insn with the same arguments,
322         omit the compare instruction.
323
324         * config/arm/arm.md (addsi3_cbranch): If destination is a high
325         register, inputs must be low registers and we need a low register
326         scratch.  Handle alternative 2 like alternative 3.
327
328 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
329
330         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
331         don't call get_addr on both.  If one expression is a VALUE and
332         the other a REG, check VALUE's locs if the REG isn't among them.
333
334 2010-04-16  Christian Bruel  <christian.bruel@st.com>
335
336         * config/sh/sh.h (sh_frame_pointer_required): New function.
337         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
338         (flag_omit_frame_pointer) Set.
339         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
340         (rounded_frame_size): Adjust size with outgoing_args_size.
341         (sh_set_return_address): Must return from stack pointer.
342         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
343         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
344         (ACCUMULATE_OUTGOING_ARGS): Define.
345         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
346         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
347
348 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
349
350         PR target/43471
351         * config/sh/sh.c (sh_legitimize_reload_address): Use
352         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
353         Remove a unneeded check for offset_base.
354
355 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
356
357         * configure: Regenerated.
358
359 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
360
361         * config/s390/s390.c (s390_call_save_register_used): Switch back
362         to HARD_REGNO_NREGS.
363
364 2010-04-15  Richard Guenther  <rguenther@suse.de>
365
366         * alias.c (alias_set_subset_of): Handle alias-set zero
367         child properly.
368
369 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
370             Julian Brown  <julian@codesourcery.com>
371
372         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
373         alternatives according to use of high and low regs.
374         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
375         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
376         optimizing for size on Thumb-2.
377
378 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
379
380         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
381
382 2010-04-15  Richard Guenther  <rguenther@suse.de>
383
384         * tree-ssa-structalias.c (struct variable_info): Add
385         is_fn_info flag.
386         (new_var_info): Initialize it.
387         (dump_constraints): Support printing last added constraints.
388         (debug_constraints): Adjust.
389         (dump_constraint_graph): Likewise.
390         (make_heapvar_for): Check for NULL cfun.
391         (get_function_part_constraint): New function.
392         (get_fi_for_callee): Likewise.
393         (find_func_aliases): Properly implement IPA PTA constraints.
394         (process_ipa_clobber): New function.
395         (find_func_clobbers): Likewise.
396         (insert_into_field_list_sorted): Remove.
397         (create_function_info_for): Properly allocate vars for IPA mode.
398         Do not use insert_into_field_list_sorted.
399         (create_variable_info_for): Properly generate constraints for
400         global vars in IPA mode.
401         (dump_solution_for_var): Always dump the solution.
402         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
403         (find_what_var_points_to): Adjust.
404         (pt_solution_set): Change.
405         (pt_solution_ior_into): New function.
406         (pt_solution_empty_p): Export.
407         (pt_solution_includes_global): Adjust.
408         (pt_solution_includes_1): Likewise.
409         (pt_solutions_intersect_1): Likewise.
410         (dump_sa_points_to_info): Check some invariants.
411         (solve_constraints): Move constraint dumping ...
412         (compute_points_to_sets): ... here.
413         (ipa_pta_execute): ... and here.
414         (compute_may_aliases): Do not re-compute points-to info
415         locally if IPA info is available.
416         (ipa_escaped_pt): New global var.
417         (ipa_pta_execute): Properly implement IPA PTA.
418         * tree-into-ssa.c (dump_decl_set): Support dumping
419         decls not in referenced-vars.
420         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
421         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
422         (dump_points_to_solution): Likewise.
423         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
424         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
425         (remap_gimple_stmt): Reset call clobber/use information if
426         necessary.
427         (copy_decl_to_var): Copy DECL_PT_UID.
428         (copy_result_decl_to_var): Likewise.
429         * tree.c (make_node_stat): Initialize DECL_PT_UID.
430         (copy_node_stat): Copy it.
431         * tree.h (DECL_PT_UID): New macro.
432         (SET_DECL_PT_UID): Likewise.
433         (DECL_PT_UID_SET_P): Likewise.
434         (struct tree_decl_minimal): Add pt_uid member.
435         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
436         (pt_solution_empty_p): Declare.
437         (pt_solution_set): Adjust.
438         (ipa_escaped_pt): Declare.
439         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
440         * gimple-pretty-print.c (pp_points_to_solution): New function.
441         (dump_gimple_call): Dump call clobber/use information.
442         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
443         * tree-pass.h (TDF_ALIAS): New dump option.
444         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
445         * doc/invoke.texi (-fipa-pta): Update documentation.
446
447 2010-04-15  Richard Guenther  <rguenther@suse.de>
448
449         * Makefile.in (OBJS-common): Add gimple-fold.o.
450         (gimple-fold.o): New rule.
451         * tree.h (maybe_fold_offset_to_reference,
452         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
453         prototypes ...
454         * gimple.h: ... here.
455         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
456         may_propagate_address_into_dereference): Move prototypes ...
457         * gimple.h: ... here.
458         * tree-ssa-ccp.c (get_symbol_constant_value,
459         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
460         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
461         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
462         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
463         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
464         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
465         gimplify_and_update_call_from_tree): Move ...
466         * gimple-fold.c: ... here.  New file.
467         (ccp_fold_builtin): Rename to ...
468         (gimple_fold_builtin): ... this.
469         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
470
471 2010-04-15  Richard Guenther  <rguenther@suse.de>
472
473         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
474         fit_double_type, force_fit_type_double, add_double_with_sign,
475         neg_double, mul_double_with_sign, lshift_double, rshift_double,
476         lrotate_double, rrotate_double, div_and_round_double): Move ...
477         * double-int.c: ... here.
478         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
479         add_double, neg_double, mul_double_with_sign, mul_double,
480         lshift_double, rshift_double, lrotate_double, rrotate_double,
481         div_and_round_double): Move prototypes ...
482         * double-int.h: ... here.
483
484 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
485
486         PR target/43742
487         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
488         matching constraints to ensure inputs match the output.
489
490 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
491
492         PR target/43742
493         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
494         in an input-only operand.       
495
496 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
497
498         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
499         (double_int_not, double_int_lshift, double_int_rshift): Declare.
500         (double_int_negative_p): Convert to static inline function.
501         * double-int.c (double_int_lshift, double_int_lshift): Add new function.
502         (double_int_negative_p): Remove.
503         * tree.h (lshift_double, rshift_double): 
504         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
505         * fold-const.c (fold_convert_const_int_from_real,
506         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
507         (lshift_double): Change type of arith argument to bool.
508         (rshift_double): Change type of arith argument to bool. Correct
509         comment.
510         * expmed.c (mask_rtx, lshift_value): (Ditto.).
511
512 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
513         
514         PR target/21803
515         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
516         at the start and end of the then/else blocks, and omit them from the
517         conversion.
518         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
519         argument; all callers changed.  Pass zero to old_insns_match_p instead.
520         (flow_find_head_matching_sequence): New function.
521         (old_insns_match_p): Check REG_EH_REGION notes for calls.
522         * basic-block.h (flow_find_cross_jump,
523         flow_find_head_matching_sequence): Declare functions.
524
525 2010-04-14  Jason Merrill  <jason@redhat.com>
526
527         PR c++/36625
528         * c-common.c (attribute_takes_identifier_p): New fn.
529         * c-common.h: Declare it.
530
531 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
532
533         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
534         splitter condition.
535         (*udivmod<mode>4): Ditto.
536
537 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
538
539         * config/i386/i386.md (maxmin_int): Rename code attribute from
540         maxminiprefix and update all users.
541         (maxmin_float): Ditto from maxminfprefix.
542         (logic): Ditto from logicprefix.
543         (absneg_mnemonic): Ditto from absnegprefix.
544         * config/i386/mmx.md: Update all users of maxminiprefix,
545         maxminfprefix and logicprefix for rename.
546         * config/i386/sse.md: Ditto.
547         * config/i386/sync.md (sync_<code><mode>): Update for
548         logicprefix rename.
549
550 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
551
552         PR 42966
553         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
554         warnings converted to errors.
555
556 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
557
558         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
559         used insn_type variable.
560         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
561         to avoid set-but-not-used warning.
562
563 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
564
565         * df-core.c (df_ref_debug): Change format string placeholder
566         from 0x%x to %#x.
567         * dwarf2asm.c (dw2_asm_output_data_raw,
568         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
569         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
570         * dwarf2out.c (output_cfi, output_cfi_directive,
571         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
572         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
573         Ditto.
574         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
575         * print-rtl.c (print_rtx): Ditto.
576
577 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
578
579         PR middle-end/42694
580         * builtins.c (expand_builtin_pow_root): New function to expand pow
581         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
582         series of sqrt and cbrt calls under -ffast-math.
583         (expand_builtin_pow): Call it.
584
585 2010-04-14  Michael Matz  <matz@suse.de>
586
587         PR tree-optimization/42963
588         * tree-cfg.c (touched_switch_bbs): New static variable.
589         (group_case_labels_stmt): New function broken out from ...
590         (group_case_labels): ... here, use the above.
591         (start_recording_case_labels): Allocate touched_switch_bbs.
592         (end_recording_case_labels): Deallocate it, call
593         group_case_labels_stmt.
594         (gimple_redirect_edge_and_branch): Remember index of affected BB.
595
596 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
597
598         * config/i386/i386.md (*popcountsi2_cmp_zext): Remove mode attribute
599         from insn template.
600
601 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
602
603         * config/i386/i386.md (*ashlqi3_1_slp): New insn pattern.
604
605 2010-04-13  Jan Hubicka  <jh@suse.cz>
606
607         * ipa-inline.c (cgraph_mark_inline_edge): Avoid double accounting
608         of optimized out static functions.
609         (cgraph_edge_badness): Add DUMP parameter and dump reasons for the
610         cost computation.  Also sanity check for overflows.
611         (update_caller_keys): Update cgraph_edge_badness call; properly
612         update fibheap and sanity check that it is up to date.
613         (add_new_edges_to_heap): Update cgraph_edge_badness.
614         (cgraph_decide_inlining_of_small_function): Likewise;
615         add sanity checking that badness in heap is up to date;
616         improve dumping of reason; Update badness of calls to the
617         offline copy of function currently inlined; dump badness
618         of functions not inlined because of unit growth limits.
619
620 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
621
622         PR middle-end/32628
623         * c-common.c (pointer_int_sum): Disregard overflow that occured only
624         because of sign-extension change when converting to sizetype here...
625         * fold-const.c (fold_convert_const_int_from_int): ...and not here.
626
627         * fold-const.c (fold_binary_op_with_conditional_arg): Do not restrict
628         the folding to constants.  Remove redundant final conversion.
629         (fold_binary) <associate>: Do not associate if the re-association of
630         constants alone overflows.
631         (fold_binary) <FLOOR_MOD_EXPR>: Move transformation into BIT_AND_EXPR
632         to the end of the list.
633         (multiple_of_p) <COND_EXPR>: New case.
634
635 2010-04-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>
636
637         * opt-functions.awk (opt_sanitized_name): New.
638         (opt_enum): New.
639         * optc-gen.awk: Use it
640         * opth-gen.awk: Use it.
641
642 2010-04-13  Martin Jambor  <mjambor@suse.cz>
643
644         * tree-sra.c (replace_uses_with_default_def_ssa_name): New function.
645         (sra_modify_assign): Delete stmts loading dead data even if racc has no
646         children.  Call replace_uses_with_default_def_ssa_name to handle
647         SSA_NAES on lhs.
648
649 2010-04-13  Michael Matz  <matz@suse.de>
650
651         PR middle-end/43730
652         * builtins.c (expand_builtin_interclass_mathfn): Also create
653         a register if the predicate doesn't match.
654
655 2010-04-13  Diego Novillo  <dnovillo@google.com>
656
657         * Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.
658         * c-pch.c: Include timevar.h.
659         (c_common_write_pch): Use TV_PCH_SAVE and TV_PCH_CPP_SAVE timers.
660         (c_common_read_pch): Use TV_PCH_RESTORE and TV_PCH_CPP_RESTORE timers.
661         * ggc-common.c: Include timevar.h.
662         (gt_pch_save): Use TV_PCH_PTR_REALLOC and TV_PCH_PTR_SORT timers.
663         * timevar.def (TV_PCH_SAVE): Define.
664         (TV_PCH_CPP_SAVE): Define.
665         (TV_PCH_PTR_REALLOC): Define.
666         (TV_PCH_PTR_SORT): Define.
667         (TV_PCH_RESTORE): Define.
668         (TV_PCH_CPP_RESTORE): Define.
669
670 2010-04-13  Michael Matz  <matz@suse.de>
671
672         * tree-ssa-reassoc.c (repropagate_negates): Merge negates also
673         into MINUS_EXPRs.
674         (can_reassociate_p): New function.
675         (break_up_subtract_bb, reassociate_bb): Use it.
676
677 2010-04-13  Richard Guenther  <rguenther@suse.de>
678
679         PR bootstrap/43737
680         * builtins.c (c_readstr): Fix assert.
681
682 2010-04-13  Uros Bizjak  <ubizjak@gmail.com>
683
684         * config/i386/i386.md (extendsidi2 splitter): Also check for DX_REG
685         when generating cltd insn.
686
687         (*ashl<mode>3_1): Remove special handling for register operand 2.
688         (*ashlsi3_1_zext): Ditto.
689         (*ashlhi3_1): Ditto.
690         (*ashlhi3_1_lea): Ditto.
691         (*ashlqi3_1): Ditto.
692         (*ashlqi3_1_lea): Ditto.
693         (*<shiftrt_insn><mode>3_1): Ditto.
694         (*<shiftrt_insn>si3_1_zext): Ditto.
695         (*<shiftrt_insn>qi3_1_slp): Ditto.
696         (*<rotate_insn><mode>3_1): Ditto.
697         (*<rotate_insn>si3_1_zext): Ditto.
698         (*<rotate_insn>qi3_1_slp): Ditto.
699
700 2010-04-13  Richard Guenther  <rguenther@suse.de>
701
702         * tree-ssa-structalias.c (callused_id): Remove.
703         (call_stmt_vars): New.
704         (get_call_vi): Likewise.
705         (lookup_call_use_vi): Likewise.
706         (lookup_call_clobber_vi): Likewise.
707         (get_call_use_vi): Likewise.
708         (get_call_clobber_vi): Likewise.
709         (make_transitive_closure_constraints): Likewise.
710         (handle_const_call): Adjust to do per-call call-used handling.
711         (handle_pure_call): Likewise.
712         (find_what_var_points_to): Remove general callused handling.
713         (init_base_vars): Likewise.
714         (init_alias_vars): Initialize call_stmt_vars.
715         (compute_points_to_sets): Process call-used and call-clobbered
716         vars for call statements.
717         (delete_points_to_sets): Free call_stmt_vars.
718
719 2010-04-13  Richard Guenther  <rguenther@suse.de>
720
721         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
722         Only add RW dependence for dependence distance zero.
723         Adjust maximal vectorization factor according to dependences.
724         Move alignment handling ...
725         (vect_find_same_alignment_drs): ... here.  New function.
726         (vect_analyze_data_ref_dependences): Adjust.
727         (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
728         (vect_analyze_data_refs): Adjust minimal vectorization factor
729         according to data references.
730         * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
731         dependences before determining the vectorization factor.
732         Analyze alignment after determining the vectorization factor.
733         * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
734         dependences before alignment.
735         * tree-vectorizer.h (vect_analyze_data_ref_dependences):
736         Adjust prototype.
737         (vect_analyze_data_refs): Likewise.
738         (MAX_VECTORIZATION_FACTOR): New define.
739
740 2010-04-13  Duncan Sands  <baldrick@free.fr>
741
742         * except.h (lang_eh_type_covers): Remove.
743         * except.c (lang_eh_type_covers): Likewise.
744
745 2010-04-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
746             Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
747
748         * gcc/config/s390/s390.md: Replace TARGET_64BIT with TARGET_ZARCH.
749         * gcc/config/s390/s390.c: Replace UNTIS_PER_WORD with
750         UNITS_PER_LONG where it is ABI relevant.
751         (s390_return_addr_rtx): Likewise.
752         (s390_back_chain_rtx): Likewise.
753         (s390_frame_area): Likewise.
754         (s390_frame_info): Likewise.
755         (s390_initial_elimination_offset): Likewise.
756         (save_gprs): Likewise.
757         (s390_emit_prologue): Likewise.
758         (s390_emit_epilogue): Likewise.
759         (s390_function_arg_advance): Likewise.
760         (s390_function_arg): Likewise.
761         (s390_va_start): Likewise.
762         (s390_gimplify_va_arg): Likewise.
763         (s390_function_profiler): Likewise.
764         (s390_optimize_prologue): Likewise.
765         (s390_rtx_costs): Likewise.
766         (s390_secondary_reload): Likewise.
767         (s390_promote_function_mode): Likewise.
768         (s390_hard_regno_mode_ok): Replace TARGET_64BIT with TARGET_ZARCH.
769         (s390_scalar_mode_supported_p): Disallow TImode if no 64 bit
770         registers available.
771         (s390_unwind_word_mode): New function.
772         (s390_function_value): Split 64 bit values into register pair if
773         used as return value.
774         (s390_call_saved_register_used): Don't use HARD_REGNO_NREGS for
775         function call parameters.  Handle parallels.
776         (TARGET_SCALAR_MODE_SUPPORTED_P): New macro.
777         (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
778         (DWARF_CIE_DATA_ALIGNMENT): New macro.
779         (s390_expand_setmem): Remove unused variable src_addr.
780         * gcc/longlong.h: Make smul_ppmm and sdiv_qrnnd inline asms to
781         deal with 64 bit registers.
782         * gcc/config/s390/s390.h: Define __zarch__ predefined macro.
783         Replace UNITS_PER_WORD with UNITS_PER_LONG where it is ABI relevant.
784         (UNITS_PER_LONG): New macro.
785         * libjava/include/s390-signal.h: Define extended ucontext
786         structure containing the upper halfs of the 64 bit registers.
787
788 2010-04-13  Simon Baldwin  <simonb@google.com>
789
790         * cfgexpand.c (gimple_expand_cfg): Clarify warning message text.
791
792 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
793
794         * gimple.c (walk_gimple_op) <GIMPLE_ASSIGN>: Do not request a pure
795         rvalue on the RHS if the LHS is of a non-renamable type.
796         * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Fold result.
797
798 2010-04-13  Matthias Klose  <doko@ubuntu.com>
799
800         * gcc.c (cc1_options): Handle -iplugindir before processing
801         the cc1 spec. Only add -iplugindir once.
802         (cpp_unique_options): Add -iplugindir option if -fplugin* options
803         found.
804         * common.opt (iplugindir): Remove `Separate' property, initialize.
805         * plugin.c (default_plugin_dir_name): Error with missing -iplugindir
806         option.
807         * Makefile.in (check-%, check-parallel-%): Create plugin dir.
808         (distclean): Remove plugin dir.
809         * doc/invoke.texi: Document -iplugindir.
810
811 2010-04-13  Basile Starynkevitch  <basile@starynkevitch.net>
812
813         * doc/plugins.texi (Loading Plugins): Document short
814         -fplugin=foo option.
815         (Plugin API): Mention default_plugin_dir_name function.
816
817         * gcc.c (find_file_spec_function): Add new declaration.
818         (static_spec_func): Use it for "find-file".
819         (find_file_spec_function): Add new function.
820         (cc1_options): Add -iplugindir option if -fplugin* options found.
821
822         * gcc-plugin.h (default_plugin_dir_name): Added new declaration.
823
824         * plugin.c (add_new_plugin): Updated comment, and handle short
825         plugin name.
826         (default_plugin_dir_name): Added new function.
827
828         * common.opt (iplugindir): New option to set the plugin directory.
829
830 2010-04-12  Uros Bizjak  <ubizjak@gmail.com>
831
832         * config/i386/i386.md (any_rotate): New code iterator.
833         (rotate_insn): New code attribute.
834         (rotate): Ditto.
835         (SWIM124): New mode iterator.
836         (<rotate_insn>ti3): New expander.
837         (<rotate_insn>di3): Macroize expander from {rotl,rotr}di3 using
838         any_rotate code iterator.
839         (<rotate_insn><mode>3) Macroize expander from {rotl,rotr}{qi,hi,si}3
840         using any_rotate code iterator and SWIM124 mode iterator.
841         (ix86_rotlti3): New insn_and_split pattern.
842         (ix86_rotrti3): Ditto.
843         (ix86_rotl<dwi>3_doubleword): Macroize insn_and_split pattern from
844         ix86_rotl{di,ti}3 patterns.
845         (ix86_rotr<dwi>3_doubleword): Ditto from ix86_rotr{di,ti}3 patterns.
846         (*<rotate_insn><mode>3_1): Merge with *{rotl,rotr}{qi,hi,si}3_1_one_bit
847         and *{rotl,rotr}di3_1_one_bit_rex64. Macroize insn from
848         *{rotl,rotr}{qi,hi,si}3_1 and *{rotl,rotr}di3_1_rex64 using any_rotate
849         code iterator and SWI mode iterator.
850         (*<rotate_insn>si3_1_zext): Merge with *{rotl,rotr}si3_1_one_bit_zext.
851         Macroize insn from {rotl,rotr}si3_1_zext using any_rotate
852         code iterator.
853         (*<rotate_insn>qi3_1_slp): Merge with *{rotl,rotr}qi3_1_one_bit_slp.
854         Macroize insn from {rotl,rotr}qi3_1_slp using any_rotate code iterator.
855         (bswap rotatert splitter): Add splitter.
856         (bswap splitter): Macroize splitter using any_rotate code iterator.
857         Add insn predicate to split only for TARGET_USE_XCHGB or when
858         optimizing function for size.
859
860 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
861
862         * config/pa/pa.c (emit_move_sequence): Remove use of
863         deleted variable flag_argument_noalias.
864
865 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
866
867         * config.gcc: Removed *-*-solaris2.7* from list of obsolete
868         configurations.
869         Add to unsupported targets list.
870         * configure.ac (gcc_cv_as_tls): Removed i[34567]86-*-solaris2.[567]*,
871         sparc*-sun-solaris2.[567]* from target lists.
872         * configure: Regenerate.
873         * doc/install.texi (Specific, *-*-solaris2*): Document Solaris 7
874         removal.
875         Remove Solaris 7 patch references.
876         (Specific, sparc-sun-solaris2.7): Removed.
877         (sparc-sun-solaris2*): Update Solaris 7 example.
878         (sparc64-*-solaris2*): Likewise.
879
880 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
881
882         * config.build (alpha*-dec-osf4*): Remove.
883         * config.gcc: Remove alpha*-dec-osf4*, alpha-dec-osf5.0* from list
884         of obsolete configurations.
885         (alpha*-dec-osf[45]*): Remove alpha*-dec-osf4*, alpha-dec-osf5.0*
886         support.
887         * config/alpha/t-osf4: Renamed to ...
888         * config/alpha/t-osf5: ... this.
889         * config/alpha/osf.h: Renamed to ...
890         * config/alpha/osf5.h: ... this.
891         Merged old osf5.h contents.
892         Update comments.
893         (ASM_SPEC): Use ASM_OLDAS_SPEC directly.
894         (EXTRA_SPECS): Removed.
895         * doc/install.texi (Specific, alpha*-dec-osf5.1): Renamed to
896         reflect removal of Tru64 UNIX V4.0/V5.0 support.
897         Document that.
898
899 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
900
901         * doc/contrib.texi (Contributors, Rainer Orth): Update.
902
903 2010-04-12  Kai Tietz  <kai.tietz@onevision.com>
904
905         PR/43702
906         * config/i386/i386.c (x86_this_parameter): Handle aggregate for
907         __thiscall convention.
908
909 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
910
911         * config/pa/pa.c (hppa_legitimize_address): Remove unused variable
912         orig_base.
913         * config/pa/pa.md (call, call_value): Remove unused variable call_insn.
914
915 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
916
917         * function.c (assign_parms_initialize_all): Add unused attribute
918         to fntype.
919
920 2010-04-12  Richard Guenther  <rguenther@suse.de>
921
922         * gsstruct.def (GSS_CALL): New.
923         * gimple.def (GIMPLE_CALL): Change to GSS_CALL.
924         * gimple.h: Include tree-ssa-alias.h.
925         (struct gimple_statement_call): New.
926         (union gimple_statement_struct_d): Add gimple_call member.
927         (gimple_call_reset_alias_info): Declare.
928         (gimple_call_use_set): New function.
929         (gimple_call_clobber_set): Likewise.
930         * Makefile.in (GIMPLE_H): Add tree-ssa-alias.h.
931         * gimple.c (gimple_call_reset_alias_info): New function.
932         (gimple_build_call_1): Call it.
933         * lto-streamer-in.c (input_gimple_stmt): Likewise.
934         * tree-inline.c (remap_gimple_stmt): Likewise.
935         (expand_call_inline): Remove callused handling.
936         * cfgexpand.c (update_alias_info_with_stack_vars): Likewise.
937         * tree-dfa.c (dump_variable): Likewise.
938         * tree-parloops.c (parallelize_loops): Likewise.
939         * tree-ssa.c (init_tree_ssa): Likewise.
940         (delete_tree_ssa): Likewise.
941         * tree-flow-inline.h (is_call_used): Remove.
942         * tree-flow.h (struct gimple_df): Remove callused member.
943         * tree-nrv.c (dest_safe_for_nrv_p): Adjust predicate.
944         * tree-ssa-alias.c (dump_alias_info): Remove callused handling.
945         (ref_maybe_used_by_call_p_1): Simplify.
946         (call_may_clobber_ref_p_1): Likewise.
947         * tree-ssa-structalias.c (compute_points_to_sets): Set
948         the call stmt used and clobbered sets.
949         * tree-tailcall.c (suitable_for_tail_opt_p): Adjust predicate.
950         (find_tail_calls): Verify the tail call.
951
952 2010-04-12  Richard Guenther  <rguenther@suse.de>
953
954         * ipa.c (cgraph_postorder): Adjust postorder to guarantee
955         single-iteration always-inline inlining.
956         * ipa-inline.c (cgraph_mark_inline): Do not return anything.
957         (cgraph_decide_inlining): Do not handle always-inline specially.
958         (try_inline): Remove always-inline cycle detection special case.
959         Do not recurse on always-inlines.
960         (cgraph_early_inlining): Do not iterate if not optimizing.
961         (cgraph_gate_early_inlining): remove.
962         (pass_early_inline): Run unconditionally.
963         (gate_cgraph_decide_inlining): New function.
964         (pass_ipa_inline): Use it.  Do not run the IPA inliner if
965         not inlining or optimizing.
966         (cgraph_decide_inlining_of_small_functions): Also consider
967         always-inline functions.
968         (cgraph_default_inline_p): Return true for nodes which should
969         disregard inline limits.
970         (estimate_function_body_sizes): Assume zero size and time for
971         nodes which are marked as disregarding inline limits.
972         (cgraph_decide_recursive_inlining): Do not perform recursive
973         inlining on always-inline nodes.
974
975 2010-04-12  Jakub Jelinek  <jakub@redhat.com>
976
977         PR bootstrap/43699
978         * c-typeck.c (c_process_expr_stmt): Call mark_exp_read even
979         for exprs satisfying handled_component_p.
980
981 2010-04-12  Eric Botcazou  <ebotcazou@adacore.com>
982
983         * expr.c (categorize_ctor_elements_1): Properly count sub-elements of
984         non-constant aggregate elements.
985
986         * gimplify.c (gimplify_init_constructor): Do not pre-evaluate if this
987         is a real initialization.
988
989 2010-04-12  Shujing Zhao  <pearly.zhao@oracle.com>
990
991         PR c/36774
992         * c-decl.c (start_function): Move forward check for nested function.
993
994 2010-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>
995
996         * config/sh/sh-protos.h (sh_legitimize_reload_address): Declare.
997         * config/sh/sh.c: Include reload.h.
998         (sh_legitimize_reload_address): New.
999         * config/sh/sh.h (LEGITIMIZE_RELOAD_ADDRESS): Use
1000         sh_legitimize_reload_address.
1001
1002 2010-04-11  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
1003
1004         * config/sh/sh.md (*movqi_pop): New insn pattern.
1005         * config/sh/predicates.md (sh_no_delay_pop_operand): New predicate.
1006
1007 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
1008
1009         * config/i386/i386.md (any_shiftrt): New code iterator.
1010         (shiftrt_insn): New code attribute.
1011         (shiftrt): Ditto.
1012         (<shiftrt_insn><mode>3): Macroize expander from {ashr,lshr}<mode>3
1013         using any_shiftrt code iterator.
1014         (*<shiftrt_insn><mode>3_doubleword): Macroize insn_and_split from
1015         *{ashr,lshr}<mode>3_doubleword using any_shiftrt code iterator.
1016         (*<shiftrt_insn><mode>3_doubleword peephole2): Macroize peephole2
1017         pattern from corresponding peephole2 patterns.
1018         (*<shiftrt_insn><mode>3_1): Macroize insn from *{ashr,lshr}<mode>3_1
1019         using any_shiftrt code iterator.
1020         (*<shiftrt_insn>si3_1_zext): Ditto from *{ashr,lshr}si3_1_zext.
1021         (*<shiftrt_insn>qi3_1_slp): Ditto from *{ashr,lshr}qi3_1_slp.
1022         (*<shiftrt_insn><mode>3_cmp): Ditto from *{ashr,lshr}<mode>3_cmp.
1023         (*<shiftrt_insn><mode>3_cmp_zext): Ditto from
1024         *{ashr,lshr}<mode>3_cmp_zext.
1025         (*<shiftrt_insn><mode>3_cconly): Ditto from *{ashr,lshr}<mode>3_cconly.
1026
1027 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
1028
1029         * config/i386/i386.md (*ashr<mode>3_cconly): Fix wrong mode of
1030         scratch register.
1031         (*lshr<mode>3_cconly): Ditto.
1032
1033 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
1034
1035         * config/i386/i386.md (lshr<mode>3): Macroize expander from
1036         lshr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
1037         (*lshr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1038         pattern from *lshr{di,ti}3_1 and corresponding splitters using
1039         DWI mode iterator.
1040         (*lshr<mode>3_doubleword peephole2): Macroize peephole2 pattern
1041         from corresponding peephole2 patterns.
1042         (*lshr<mode>3_1): Merge with *lshr{qi,hi,si}3_1_one_bit and
1043         *lshrdi3_1_one_bit_rex64. Macroize insn from *lshr{qi,hi,si}3_1
1044         and *lshrdi3_1_rex64 using SWI mode iterator.
1045         (*lshrsi3_1_zext): Merge with *lshrsi3_1_one_bit_zext.
1046         (*lshrqi3_1_slp): Merge with *lshrqi3_1_one_bit_slp.
1047         (*lshr<mode>3_cmp): Merge with *lshr{qi,hi,si}3_one_bit_cmp and
1048         *lshrdi3_one_bit_cmp_rex64. Macroize insn from *lshr{qi,hi,si}3_cmp
1049         and *lshrdi3_cmp_rex64 using SWI mode iterator.
1050         (*lshrsi3_cmp_zext): Merge with *lshrsi3_cmp_one_bit_zext.
1051         (*lshr<mode>3_cconly): Merge with *lshr{qi,hi,si}3_one_bit_cconly and
1052         *lshrdi3_one_bit_cconly_rex64. Macroize insn from
1053         *lshr{qi,hi,si}3_cconly and *lshrdi3_cconly_rex64 using
1054         SWI mode iterator.
1055
1056 2010-04-10  Uros Bizjak  <ubizjak@gmail.com>
1057
1058         * config/i386/i386.md (ashr<mode>3): Macroize expander from
1059         ashr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
1060         (*ashr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1061         pattern from *ashr{di,ti}3_1 and corresponding splitters using
1062         DWI mode iterator.
1063         (*ashr<mode>3_doubleword peephole2): Macroize peephole2 pattern
1064         from corresponding peephole2 patterns.
1065         (ashrdi3_cvt): Rename from ashrdi3_63_rex64.
1066         (ashrsi3_cvt): Rename from ashrsi3_31.
1067         (*ashrsi3_cvt_zext): Rename from *ashrsi3_31_zext.
1068         (x86_shift<mode>_adj_3): Macroize expander from x86_shift_adj_3
1069         and x86_64_shift_adj_3 using SWI48 mode iterator.
1070         (*ashr<mode>3_1): Merge with *ashr{qi,hi,si}3_1_one_bit and
1071         *ashrdi3_1_one_bit_rex64. Macroize insn from *ashr{qi,hi,si}3_1
1072         and *ashrdi3_1_rex64 using SWI mode iterator.
1073         (*ashrsi3_1_zext): Merge with *ashrsi3_1_one_bit_zext.
1074         (*ashrqi3_1_slp): Merge with *ashrqi3_1_one_bit_slp.
1075         (*ashr<mode>3_cmp): Merge with *ashr{qi,hi,si}3_one_bit_cmp and
1076         *ashrdi3_one_bit_cmp_rex64. Macroize insn from *ashr{qi,hi,si}3_cmp
1077         and *ashrdi3_cmp_rex64 using SWI mode iterator.
1078         (*ashrsi3_cmp_zext): Merge with *ashrsi3_cmp_one_bit_zext.
1079         (*ashr<mode>3_cconly): Merge with *ashr{qi,hi,si}3_one_bit_cconly and
1080         *ashrdi3_one_bit_cconly_rex64. Macroize insn from
1081         *ashr{qi,hi,si}3_cconly and *ashrdi3_cconly_rex64 using
1082         SWI mode iterator.
1083         (sign_extend splitters): Update for renamed ashr{di,si}3_cvt patterns.
1084         * config/i386/i386.c (ix86_split_ashr): Update for renamed
1085         x86_shift<mode>_adj_3 expanders.
1086
1087 2010-04-10  Wei Guozhi  <carrot@google.com>
1088
1089         PR target/42601
1090         * config/arm/arm.c (arm_pic_static_addr): New function.
1091         (legitimize_pic_address): Call arm_pic_static_addr when it detects
1092         a static symbol.
1093         (arm_output_addr_const_extra): Output expression for new pattern.
1094         * config/arm/arm.md (UNSPEC_SYMBOL_OFFSET): New unspec symbol.
1095
1096 2010-04-10  Bernd Schmidt  <bernds@codesourcery.com>
1097
1098         * ira-costs.c (record_reg_classes): Ignore alternatives that are
1099         not enabled.
1100
1101         * Makefile.in (web.o): Depend on insn-config.h and $(RECOG_H).
1102         * web.c: Include "insn-config.h" and "recog.h".
1103         (union_match_dups): New function.
1104         (web_main): Call it.
1105         (union_defs): Don't try to recognize match_dups.
1106
1107         * reload1.c (eliminate_regs_in_insn): Don't restore an operand
1108         if doing so would replace the entire pattern.
1109
1110 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
1111
1112         PR target/43707
1113         PR target/43709
1114         * config/i386/i386.md (*ashl<mode>3_doubleword): Split to insn
1115         and splitter pattern.  Change splitter operand 1 predicate to
1116         nonmemory_operand.
1117
1118 2010-04-09  Martin Jambor  <mjambor@suse.cz>
1119
1120         * ipa-cp.c (ipcp_lats_are_equal): Return true also if the two
1121         lattices are addresses of CONST_DECLs with the same initial value.
1122         (ipcp_print_all_lattices): Print values of CONST_DECLs.
1123         * ipa-prop.c (ipa_print_node_jump_functions): Likewise.
1124
1125 2010-04-09  Eric Botcazou  <ebotcazou@adacore.com>
1126             Bernd Schmidt  <bernds@codesourcery.com>
1127
1128         * loop-invariant.c (replace_uses): New static function.
1129         (move_invariant_reg): Use it to ensure we can replace the uses.
1130
1131 2010-04-09  Hariharan Sandanagobalane  <hariharan@picochip.com>
1132
1133         * config/picochip/picochip.c (picochip_rtx_costs): Use correct
1134         function template.
1135         (picochip_override_options): Enable section anchors only above -O1.
1136         (picochip_reorg): Fixed a couple of build warnings.
1137
1138 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1139
1140         * configure.ac (plugin -rdynamic test): Log result.
1141         * configure: Regenerate.
1142         * config/sol2.h (LINK_SPEC): Handle -rdynamic.
1143         (RDYNAMIC_SPEC): Define.
1144         * config/sol2-gld.h (RDYNAMIC_SPEC): Redefine.
1145
1146 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1147
1148         * configure.ac: Determine Sun ld version numbers.
1149         (comdat_group): Restrict GNU ld version checks to gld.
1150         (comdat_group, *-*-solaris2.1[1-9]*): Enable for Sun ld > 1.1688.
1151         (enable_comdat): Support --enable-comdat.
1152         * configure: Regenerate.
1153         * doc/install.texi (Configuration): Document --enable-comdat.
1154
1155 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1156
1157         * config/sparc/sol2-gld.h: Remove SPARC reference.  Rename ...
1158         * config/sol2-gld.h: ... here.
1159         * config.gcc (sparc*-*-solaris2*): Reflect this.
1160         (i[34567]86-*-solaris2*): Use it.
1161
1162 2010-04-09  Steve Ellcey  <sje@cup.hp.com>
1163
1164         * config/ia64/ia64.c (ia64_dfa_new_cycle): Remove unused variable
1165         setup_clocks_p.
1166         (final_emit_insn_group_barriers): Remove unused variable prev_insn.
1167
1168 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1169
1170         PR 42965
1171         * diagnostic.c (diagnostic_initialize): Initialize
1172         some_warnings_are_errors.
1173         (diagnostic_finish): New.
1174         (diagnostic_action_after_output): Call it before exiting.
1175         (diagnostic_report_diagnostic): Do not print message here. Set
1176         some_warnings_are_errors.
1177         * diagnostic.h (diagnostic_context): Delete
1178         issue_warnings_are_errors_message. Add some_warnings_are_errors.
1179         (diagnostic_finish): Declare.
1180         * toplev.c (toplev_main): Call it before exit.
1181
1182 2010-04-09  Jason Merrill  <jason@redhat.com>
1183
1184         PR c++/42623
1185         * c-common.c (c_sizeof_or_alignof_type): Return error_mark_node
1186         for incomplete type.
1187
1188         PR c++/41788
1189         * stor-layout.c (finalize_record_size): Don't change TYPE_PACKED
1190         based on a warning flag.
1191
1192 2010-04-09  Richard Guenther  <rguenther@suse.de>
1193
1194         * tree-pretty-print.c (dump_generic_node): Dump TYPE_VECTOR_SUBPARTS.
1195
1196 2010-04-09  Iain Sandoe  <iains@gcc.gnu.org>
1197
1198         PR bootstrap/43684
1199         * varasm.c (default_assemble_visibility): Wrap vars that are
1200         set, but unused, by targets without GAS.
1201         * config/rs6000/rs6000.c: (paired_emit_vector_compare):
1202         Remove set, but unused, vars.
1203         (rs6000_legitimize_tls_address): Likewise.
1204         (altivec_expand_dst_builtin): Likewise.
1205         * config/darwin.c (machopic_classify_symbol): Likewise.
1206         (machopic_indirection_name): Likewise.
1207
1208 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
1209
1210         * config/i386/i386.md (DWI): New mode iterator.
1211         (S): New mode attribute.
1212         (shift_operand): Ditto.
1213         (shift_immediate_operand): Ditto.
1214         (ashl_input_operand): Ditto.
1215         (ashl<mode>3): Macroize expander from ashl{qi,hi,si,di,ti}3_1
1216         using SDWIM mode iterator.
1217         (*ashl<mode>3_doubleword): New insn_and_split_pattern.  Macroize
1218         pattern from *ashl{di,ti}3_1 and corresponding splitters using
1219         DWI mode iterator.
1220         (*ashl<mode>3_doubleword peephole2): Macroize peephole2 pattern
1221         from corresponding peephole2 patterns.
1222         (x86_shift<mode>_adj_1): Macroize expander from x86_shift_adj_1
1223         and x86_64_shift_adj_1 using SWI48 mode iterator.
1224         (x86_shift<mode>_adj_2): Ditto.
1225         (*ashldi3_1_rex64): Split TYPE_LEA pattern.
1226         (*ashl<mode>3_1): Macroize insn from *ashlsi3_1 and *ashldi3_1_rex64
1227         using SWI48 mode iterator.
1228         (*ashl<mode>3_cmp): Macroize insn from *ashl{qi,hi,si}3_cmp and
1229         *ashldi3_cmp_rex64 using SWI mode iterator.
1230         (*ashl<mode>3_cconly): Macroize insn from *ashl{qi,hi,si}3_cconly and
1231         *ashldi3_cconly_rex64 using SWI mode iterator.
1232         * config/i386/i386.c (ix86_split_ashl): Update for renamed
1233         x86_shift<mode>_adj_{1,2}.
1234         (ix86_split_ashr): Ditto.
1235         (ix86_split_lshr): Ditto.
1236
1237 2010-04-09  Richard Guenther  <rguenther@suse.de>
1238
1239         * target.h (builtin_conversion): Pass in input and output types.
1240         * targhooks.c (default_builtin_vectorized_conversion): Adjust.
1241         * targhooks.h (default_builtin_vectorized_conversion): Likewise.
1242         * tree-vect-stmts.c (vectorizable_conversion): Adjust.
1243         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Adjust.
1244
1245         * config/i386/i386.c (ix86_vectorize_builtin_conversion): Adjust.
1246         Handle AVX modes.
1247         * config/rs6000/rs6000.c (rs6000_builtin_conversion): Adjust.
1248
1249 2010-04-09  Richard Guenther  <rguenther@suse.de>
1250
1251         PR target/43152
1252         * config/i386/sse.md (vcond<mode>): Handle AVX modes as well.
1253
1254 2010-04-09  Richard Guenther  <rguenther@suse.de>
1255
1256         * tree-vectorizer.h (struct _stmt_vec_info): Document
1257         that vectype is the type of the LHS.
1258         (supportable_widening_operation, supportable_narrowing_operation):
1259         Get both input and output vector types as arguments.
1260         (vect_is_simple_use_1): Declare.
1261         (get_same_sized_vectype): Likewise.
1262         * tree-vect-loop.c (vect_determine_vectorization_factor):
1263         Set STMT_VINFO_VECTYPE to the vector type of the def.
1264         (vectorizable_reduction): Adjust.
1265         * tree-vect-patterns.c (vect_recog_widen_mult_pattern):
1266         Adjust.  Specify the output vector type.
1267         (vect_pattern_recog_1): Adjust.
1268         * tree-vect-stmts.c (get_same_sized_vectype): New function.
1269         (vectorizable_call): Adjust.
1270         (vectorizable_conversion): Likewise.
1271         (vectorizable_operation): Likewise.
1272         (vectorizable_type_demotion): Likewise.
1273         (vectorizable_type_promotion): Likewise.
1274         (vect_analyze_stmt): Set STMT_VINFO_VECTYPE to the vector type of
1275         the def.
1276         (vect_is_simple_use_1): New function.
1277         (supportable_widening_operation): Get both input and output
1278         vector types.
1279         (supportable_narrowing_operation): Likewise.
1280         * tree-vect-slp.c (vect_schedule_slp_instance): Adjust.
1281
1282 2010-04-09  Kai Tietz  <kai.tietz@onevision.com>
1283
1284         * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Add
1285         __thiscall and _thiscall as predefined macros.
1286         * config/i386/i386.c (ix86_handle_cconv_attribute): Add
1287         thiscall attribute handling.
1288         (ix86_comp_type_attributes): Likewise.
1289         (ix86_function_regparm): Likewise.
1290         (ix86_return_pops_args): Likewise.
1291         (init_cumulative_args): Likewise.
1292         (find_drap_reg): Likewise.
1293         (ix86_static_chain): Likewise.
1294         (x86_this_parameter): Likewise.
1295         (x86_output_mi_thunk): Likewise.
1296         (ix86_attribute_table): Add description for thiscall attribute.
1297         * config/i386/i386.h (ix86_args): Adjust comment for member fastcall.
1298         * doc/extend.texi: Add documentation for thiscall.
1299
1300 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1301
1302         PR c++/28584
1303         * c.opt (Wint-to-pointer-cast): Available in C++.
1304         * doc/invoke.texi (Wint-to-pointer-cast): Available in C++.
1305
1306 2010-04-08  Eric Botcazou  <ebotcazou@adacore.com>
1307
1308         * tree.h (TREE_ADDRESSABLE): Document its effect for function types.
1309         * calls.c (expand_call): Pass the function type to aggregate_value_p.
1310         * function.c (aggregate_value_p): Do not honor DECL_BY_REFERENCE on
1311         the target function of a CALL_EXPR.  Honor TREE_ADDRESSABLE on the
1312         function type instead.  Reorder and simplify checks.
1313
1314         * gimplify.c (gimplify_modify_expr_rhs) <WITH_SIZE_EXPR>: New case.
1315
1316 2010-04-08  Jing Yu  <jingyu@google.com>
1317             Zdenek Dvorak  <ook@ucw.cz>
1318
1319         PR tree-optimization/42720
1320         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Move one-time
1321         loop unswitch conditions here from ...
1322         (tree_unswitch_single_loop): ... here.
1323
1324 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
1325
1326         * tree-if-conv.c: Fix comments and simplify logic.
1327
1328 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
1329
1330         * tree-if-conv.c (if_convertible_loop_p): Remove unused parameter.
1331         (tree_if_conversion): Same.  Update call to if_convertible_loop_p.
1332         (main_tree_if_conversion): Update call to tree_if_conversion.
1333
1334 2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1335
1336         PR 42485
1337         * doc/invoke.texi (-b,-V): Delete.
1338         * doc/tm.texi: Do not mention -b.
1339         * gcc.c (display_help): Delete -b and -V.
1340         (process_command): Delete -b and -V.
1341         * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.
1342
1343 2010-04-08  Christian Borntraeger  <borntraeger@de.ibm.com>
1344             Wolfgang Gellerich  <gellerich@de.ibm.com>
1345
1346         Implement target hook for loop unrolling
1347         * target.h (loop_unroll_adjust): Add a new target hook function.
1348         * target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
1349         * doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
1350         * config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
1351         (s390_loop_unroll_adjust): Implement the new target hook for s390.
1352         * loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll
1353         target hook.
1354         (decide_unroll_stupid): Likewise.
1355
1356 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1357
1358         PR target/43643
1359         * config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.
1360
1361 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1362
1363         * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
1364         (Specific, *-*-solaris2*): Likewise.
1365         Don't prefer Sun as over GNU as.
1366
1367 2010-04-08  Wolfgang Gellerich  <gellerich@de.ibm.com>
1368
1369         * config/s390/s390.c (override_options): Adjust the z10
1370           defaults for max-unroll-times, max-completely-peeled-insns
1371           and max-completely-peel-times.
1372
1373 2010-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1374
1375         * config/s390/s390.c (s390_expand_movmem): Issue prefetch
1376         instructions for z10.
1377         (s390_expand_setmem): Likewise.
1378         (s390_expand_cmpmem): Likewise.
1379
1380 2010-04-08  Richard Guenther  <rguenther@suse.de>
1381
1382         PR tree-optimization/43679
1383         * tree-ssa-pre.c (eliminate): Only propagate copies.
1384
1385 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
1386
1387         PR bootstrap/43681
1388         * expr.c (block_move_libcall_safe_for_call_parm): Avoid
1389         set but not used variable warning.
1390
1391 2010-04-08  Wei Guozhi  <carrot@google.com>
1392
1393         PR target/41653
1394         * config/arm/arm.c (thumb1_size_rtx_costs): New function.
1395         (arm_size_rtx_costs): Call the new function when optimized for size.
1396
1397 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
1398
1399         PR debug/43670
1400         * cfgexpand.c (expand_debug_expr): If for non-NULL offset
1401         op0 is not a MEM, just return NULL instead of assertion
1402         failure.
1403         (discover_nonconstant_array_refs): Don't walk debug stmts.
1404
1405 2010-04-08  Doug Kwan  <dougkwan@google.com>
1406
1407         * configure.ac: Recognize gold and do not use its version number
1408         to test ld features.
1409         * configure: Regenerate.
1410
1411 2010-04-08  Maxim Kuvyrkov  <maxim@codesourcery.com>
1412
1413         PR middle-end/40815
1414         * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
1415         (negate_value): Move code to push elements to broken_up_substracts ...
1416         (eliminate_plus_minus_pair): ... here.  Push operands that have no
1417         negative pair to plus_negates.
1418         (repropagate_negates, init_reassoc, fini_reassoc): Update.
1419
1420 2010-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1421
1422         * doc/install.texi (Configuration): Move description of
1423         --enable-lto, --with-libelf*, --enable-gold from Java section to
1424         general section.
1425
1426         * doc/generic.texi (Working with declarations)
1427         (Function Properties, C and C++ Trees): Fix typos.
1428         * doc/sourcebuild.texi (Top Level): Likewise.
1429
1430 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
1431
1432         PR c/18624
1433         * tree.h (DECL_READ_P): Define.
1434         (struct tree_decl_common): Add decl_read_flag.
1435         * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
1436         a set but not used warning.
1437         (merge_decls): Merge DECL_READ_P flag.
1438         (finish_decl, build_compound_literal): Set DECL_READ_P flag.
1439         (finish_function): Issue -Wunused-but-set-parameter diagnostics.
1440         * c-common.c (handle_used_attribute, handle_unused_attribute):
1441         Likewise.
1442         * c-tree.h (default_function_array_read_conversion, mark_exp_read):
1443         New prototypes.
1444         * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
1445         New functions.
1446         (default_conversion, c_process_expr_stmt): Call mark_exp_read.
1447         * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
1448         c_parser_binary_expression, c_parser_cast_expression,
1449         c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
1450         Call default_function_array_read_conversion instead of
1451         default_function_array_conversion where needed.
1452         (c_parser_unary_expression, c_parser_conditional_expression,
1453         c_parser_postfix_expression_after_primary, c_parser_initelt):
1454         Likewise.  Call mark_exp_read where needed.
1455         (c_parser_statement_after_labels, c_parser_asm_operands,
1456         c_parser_typeof_specifier, c_parser_sizeof_expression,
1457         c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
1458         where needed.
1459         * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
1460         New.
1461         * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
1462         (warn_unused_but_set_parameter): Default to warn_unused
1463         && extra_warnings.
1464         * doc/invoke.texi: Document -Wunused-but-set-variable and
1465         -Wunused-but-set-parameter.
1466
1467         * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
1468         used count variable.
1469         * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
1470         when operandN variables aren't used in the body of the expander
1471         or splitter.
1472         * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
1473         FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
1474         * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
1475         * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
1476         FOR_EACH_IMM_USE_ON_STMT): Likewise.
1477         * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
1478         * tree.c (PROCESS_ARG): Likewise.
1479
1480 2010-04-07  Simon Baldwin  <simonb@google.com>
1481
1482         * diagnostic.h (diagnostic_override_option_index): New macro to
1483         set a diagnostic's option_index.
1484         * c-tree.h (c_cpp_error): Add warning reason argument.
1485         * opts.c (_warning_as_error_callback): New.
1486         (register_warning_as_error_callback): Store callback for
1487         warnings enabled via enable_warning_as_error.
1488         (enable_warning_as_error): Call callback, minor code tidy.
1489         * opts.h (register_warning_as_error_callback): Declare.
1490         * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
1491         response to -Werror=.
1492         (c_common_init_options): Register warning_as_error_callback in opts.c.
1493         * common.opt: Add -Wno-cpp option.
1494         * c-common.c (struct reason_option_codes_t): Map cpp warning
1495         reason codes to gcc option indexes.
1496         * (c_option_controlling_cpp_error): New function, lookup the gcc
1497         option index for a cpp warning reason code.
1498         * (c_cpp_error): Add warning reason argument, call
1499         c_option_controlling_cpp_error for diagnostic_override_option_index.
1500         * doc/invoke.texi: Document -Wno-cpp.
1501
1502 2010-04-07  Richard Guenther  <rguenther@suse.de>
1503
1504         * ipa-reference.c (mark_load): Use get_base_address.
1505         (mark_store): Likewise.
1506
1507         * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
1508         inserting GIMPLE_NOPs into the IL.
1509         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1510         Explicitly strip handled components and indirect references.
1511
1512         * fold-const.c (fold_unary_loc): Do not strip qualifiers when
1513         folding address expressions.
1514         * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
1515         * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
1516         operand_equal_p to compare decls.
1517         (ptr_deref_may_alias_decl_p): Likewise.
1518         * tree-ssa-operands.c (get_asm_expr_operands): Simplify
1519         * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
1520         Handle reversed comparison ops.
1521         * tree-sra.c (asm_visit_addr): Use get_base_address.
1522         * ipa-prop.c (visit_store_addr_for_mod_analysis): Use get_base_address.
1523         * ipa-reference.c (mark_address): Use get_base_address.
1524
1525 2010-04-07  Richard Guenther  <rguenther@suse.de>
1526
1527         * tree-ssa-forwprop.c (forward_propagate_addr_expr):
1528         Propagate constants everywhere.
1529
1530 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
1531
1532         PR debug/43516
1533         * tree.c (MAX_INT_CACHED_PREC): Define.
1534         (nonstandard_integer_type_cache): New array.
1535         (build_nonstandard_integer_type): Cache results for precision
1536         <= MAX_INT_CACHED_PREC.
1537
1538 2010-04-07  Richard Guenther  <rguenther@suse.de>
1539
1540         * doc/invoke.texi (-fargument-alias, -fargument-noalias,
1541         -fargument-noalias-global, -fargument-noalias-anything): Remove.
1542         * common.opt: Likewise.
1543         * tree-ssa-structalias.c (intra_create_variable_infos): Adjust comment.
1544         * alias.c (base_alias_check): Remove flag_argument_noalias handling.
1545         (nonoverlapping_memrefs_p): Likewise.
1546         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1547         * opts.c (common_handle_option): Handle OPT_fargument_alias,
1548         OPT_fargument_noalias, OPT_fargument_noalias_anything and
1549         OPT_fargument_noalias_global for backward compatibility.
1550
1551 2010-04-07  Richard Guenther  <rguenther@suse.de>
1552
1553         PR tree-optimization/43270
1554         * tree-vrp.c (check_array_ref): Fix flexible array member detection.
1555         * tree-ssa-sccvn.h (fully_constant_vn_reference_p): Declare.
1556         * tree-ssa-pre.c (phi_translate_1): Adjust.
1557         (fully_constant_expression): Split out vn_reference handling to ...
1558         * tree-ssa-sccvn.c (fully_constant_vn_reference_p): ... here.
1559         Fold reads from constant strings.
1560         (vn_reference_lookup): Handle fully constant references.
1561         (vn_reference_lookup_pieces): Likewise.
1562         * Makefile.in (expmed.o-warn): Add -Wno-error.
1563
1564 2010-04-07  Martin Jambor  <mjambor@suse.cz>
1565
1566         * tree-sra.c (find_param_candidates): Allow scalar va_list types.
1567
1568 2010-04-07  Iain Sandoe  <iains@gcc.gnu.org>
1569
1570         PR driver/41594
1571         * gcc.c: Add -static-libstdc++ to list of recognized options.
1572
1573 2010-04-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1574
1575         * config.gcc (i[34567]86-*-solaris2*): Default with_tune_32 to generic.
1576
1577 2010-04-07  Richard Guenther  <rguenther@suse.de>
1578
1579         PR middle-end/42617
1580         * expr.c (expand_expr_real_1): For TARGET_MEM_REFs with pointer
1581         bases build simple mem attributes to retain points-to information.
1582
1583 2010-04-07  Richard Guenther  <rguenther@suse.de>
1584
1585         PR middle-end/42617
1586         * alias.c (ao_ref_from_mem): Without MEM_OFFSET or MEM_SIZE
1587         preserve points-to related information.
1588
1589 2010-04-07  Richard Guenther  <rguenther@suse.de>
1590
1591         PR middle-end/42617
1592         * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not
1593         discard plain indirect references.
1594         * fold-const.c (operand_equal_p): Guard against NULL_TREE type.
1595         * tree.c (tree_nop_conversion): Likewise.
1596
1597 2010-04-07  Dodji Seketeli  <dodji@redhat.com>
1598
1599         PR debug/43628
1600         * dwarf2out.c (modified_type_die): Ignore artificial typedefs.
1601
1602 2010-04-06  Kai Tietz  <kai.tietz@onevision.com>
1603
1604         * config/i386/i386.c (ix86_handle_cconv_attribute): Ignore
1605         calling convention attributes on METHOD_TYPEs for w64 ABI, too.
1606
1607 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1608
1609         * tree-if-conv.c: Fix indentation and comments.
1610
1611 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1612
1613         * tree-if-conv.c: Sort static functions in topological order.
1614
1615 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
1616
1617         * tree-if-conv.c: Fix indentation and comments.
1618
1619 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1620
1621         PR middle-end/43519
1622         * graphite-clast-to-gimple.c (max_signed_precision_type): Use
1623         lang_hooks.types.type_for_size instead of
1624         build_nonstandard_integer_type.
1625         When converting an unsigned type to signed, double its precision.
1626         (gcc_type_for_interval): Use lang_hooks.types.type_for_size.
1627         (gcc_type_for_iv_of_clast_loop): Call max_signed_precision_type.
1628         (graphite_create_new_loop_guard): When ub + 1 wraps around,
1629         use lb <= ub.
1630
1631 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1632
1633         PR middle-end/43519
1634         * graphite-clast-to-gimple.c (graphite_create_new_loop_guard): Use
1635         POINTER_PLUS_EXPR for pointer types.
1636
1637 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1638
1639         PR middle-end/43519
1640         * Makefile.in (graphite-clast-to-gimple.o): Depends on langhooks.h.
1641         * graphite-clast-to-gimple.c: Include langhooks.h.
1642         (max_signed_precision_type): New.
1643         (max_precision_type): Takes two types as arguments.
1644         (precision_for_value): New.
1645         (precision_for_interval): New.
1646         (gcc_type_for_interval): New.
1647         (gcc_type_for_value): New.
1648         (gcc_type_for_clast_term): New.
1649         (gcc_type_for_clast_red): New.
1650         (gcc_type_for_clast_bin): New.
1651         (gcc_type_for_clast_expr): Split up into several functions.
1652         (gcc_type_for_clast_eq): Rewritten.
1653         (compute_bounds_for_level): New.
1654         (compute_type_for_level_1): New.
1655         (compute_type_for_level): New.
1656         (gcc_type_for_cloog_iv): Removed.
1657         (gcc_type_for_iv_of_clast_loop): Rewritten.
1658         (graphite_create_new_loop): Compute the lower and upper bound types
1659         with gcc_type_for_clast_expr.
1660         (graphite_create_new_loop_guard): Same.
1661         (find_cloog_iv_in_expr): Removed.
1662         (compute_cloog_iv_types_1): Removed.
1663         (compute_cloog_iv_types): Removed.
1664         (gloog): Do not call compute_cloog_iv_types.
1665         * graphite-sese-to-poly.c (new_gimple_bb): Do not initialize
1666         GBB_CLOOG_IV_TYPES.
1667         (free_data_refs_aux): Do not free GBB_CLOOG_IV_TYPES.
1668         * sese.h (struct gimple_bb): Removed field cloog_iv_types.
1669         (GBB_CLOOG_IV_TYPES): Removed.
1670
1671 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1672
1673         * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Assert that
1674         gimple_phi_num_args of the loop close SSA phi node is equal to 1.
1675         (detect_commutative_reduction): Same.
1676
1677 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1678
1679         * graphite-clast-to-gimple.c (graphite_verify): Remove redundant
1680         call to verify_ssa.  Invoke verify_loop_closed_ssa with an extra
1681         argument.
1682         * graphite-scop-detection.c (canonicalize_loop_closed_ssa_form): Same.
1683         * graphite-sese-to-poly.c (rewrite_reductions_out_of_ssa): Same.
1684         (rewrite_commutative_reductions_out_of_ssa): Same.
1685         * passes.c (execute_function_todo): Call verify_ssa for every pass
1686         in the LNO.  Invoke verify_loop_closed_ssa with an extra argument.
1687         * tree-flow.h (verify_loop_closed_ssa): Update declaration.
1688         * tree-parloops.c (parallelize_loops): Invoke verify_loop_closed_ssa
1689         with an extra argument.
1690         * tree-ssa-loop-manip.c (check_loop_closed_ssa_stmt): Same.  Call
1691         verify_ssa only when the extra argument is true.
1692         (gimple_duplicate_loop_to_header_edge): Invoke verify_loop_closed_ssa
1693         with an extra argument.
1694         (tree_transform_and_unroll_loop): Same.
1695
1696 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
1697
1698         * passes.c (execute_function_todo): Call verify_loop_closed_ssa
1699         for all the passes of the LNO having LOOP_CLOSED_SSA.
1700         * tree-if-conv.c (pass_if_conversion): Remove TODO_verify_loops.
1701         * tree-loop-distribution.c (pass_loop_distribution): Same.
1702         * tree-pass.h (TODO_verify_loops): Removed.
1703         * tree-ssa-loop.c (pass_tree_loop_init): Same.
1704         (pass_lim): Same.
1705         (pass_tree_unswitch): Same.
1706         (pass_predcom): Same.
1707         (pass_vectorize): Same.
1708         (pass_linear_transform): Same.
1709         (pass_graphite_transforms): Same.
1710         (pass_iv_canon): Same.
1711         (pass_complete_unroll): Same.
1712         (pass_complete_unrolli): Same.
1713         (pass_parallelize_loops): Same.
1714         (pass_loop_prefetch): Same.
1715         (pass_iv_optimize): Same.
1716
1717 2010-04-06  Changpeng Fang  <changpeng.fang@amd.com>
1718
1719         PR middle-end/32824
1720         * passes.c (init_optimization_passes): Move pass_lim before
1721         pass_copy_prop and pass_dce_loop.
1722
1723 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
1724
1725         PR target/43667
1726         * config/i386/i386.c (bdesc_multi_arg): Use OPTION_MASK_ISA_XOP
1727         instead of OPTION_MASK_ISA_AVX for __builtin_ia32_vpermil2p*.
1728         (ix86_expand_args_builtin): Use V*_FTYPE_* enum codes instead of
1729         MULTI_* defines for 4 argument vpermil2p* builtins.
1730
1731 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
1732
1733         * config/i386/i386-protos.h (x86_maybe_negate_const_int): Declare.
1734         * config/i386/i386.c (x86_maybe_negate_const_int): New.
1735         (x86_output_mi_thunk): Use x86_maybe_negate_const_int.
1736         * config/i386/i386.md (*add<mode>_1, *addsi_1_zext, *addhi_1,
1737         *addhi_1_lea, *addqi_1, *addqi_1_lea, *addqi_1_slp, *add<mode>_2,
1738         *addsi_2_zext, *addhi_2, *addqi_2, *add<mode>_3, *addsi_3_zext,
1739         *addhi_3, *addqi_3,*add<mode>_5, *addhi_5, *addqi_5):
1740         Use x86_maybe_negate_const_int to output insn mnemonic.
1741         (*adddi_4, *addsi_4, *addhi_4, *addqi_4): Ditto.  Remove overflow
1742         check from instruction predicate.  Update comments.
1743         * config/i386/sync.md (sync_add<mode>): Use
1744         x86_maybe_negate_const_int to output insn mnemonic.
1745
1746 2010-04-06  Jan Hubicka  <jh@suse.cz>
1747
1748         PR tree-optimization/42906
1749         * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add
1750         IGNORE_SELF argument.  Set visited_control_parents for fully
1751         processed BBs.
1752         (find_obviously_necessary_stmts): Update call of
1753         mark_control_dependent_edges_necessary.
1754         (propagate_necessity): Likewise.  Handle PHI edges more curefully.
1755
1756 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
1757
1758         * config/i386/i386.md: Remove comment about 'e' and 'E'
1759         operand modifier.
1760
1761 2010-04-06  Richard Guenther  <rguenther@suse.de>
1762
1763         PR tree-optimization/43627
1764         * tree-vrp.c (extract_range_from_unary_expr): Widenings
1765         of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type,
1766         not varying.
1767
1768 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
1769
1770         * BASE-VER: Change to 4.6.0.
1771
1772         PR target/43638
1773         * config/i386/i386.c (print_operand): Remove 'e' and 'E' code
1774         handling.
1775
1776 2010-04-06  Richard Guenther  <rguenther@suse.de>
1777
1778         PR middle-end/43661
1779         * fold-const.c (fold_comparison): Handle X * 0 CMP 0.
1780
1781 2010-04-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1782
1783         * doc/invoke.texi (Optimize Options): Document that LTO
1784         won't remove object access purely due to incompatible
1785         declarations.
1786
1787 2010-04-04  Matthias Klose  <doko@ubuntu.com>
1788
1789         * graphite-sese-to-poly.c (translate_scalar_reduction_to_array):
1790         Initialize variable.
1791
1792 2010-04-03  Richard Guenther  <rguenther@suse.de>
1793
1794         PR middle-end/42509
1795         * alias.c (nonoverlapping_memrefs_p): For spill-slot accesses
1796         require a non-NULL MEM_OFFSET.
1797
1798 2010-04-02  Steven Bosscher  <steven@gcc.gnu.org>
1799
1800         * ada/gcc-interface/Make-lang.in, alias.c, attribs.c, auto-inc-dec.c,
1801         basic-block.h, bb-reorder.c, calls.c, c-common.c, cgraph.h,
1802         collect2.h, config/alpha/alpha.c, config/alpha/alpha.md,
1803         config/alpha/predicates.md, config/arm/arm.md,
1804         config/arm/lib1funcs.asm, config/arm/neon-schedgen.ml,
1805         config/avr/avr.c, config/avr/avr.md, config/bfin/bfin.c,
1806         config/darwin9.h, config/darwin.c, config/darwin.h,
1807         config/h8300/h8300.c, config/i386/cpuid.h, config/i386/cygming.h,
1808         config/i386/cygwin.h, config/i386/mingw32.h, config/i386/msformat-c.c,
1809         config/i386/sol2-10.h, config/i386/xopintrin.h, config/ia64/ia64.c,
1810         config/ia64/ia64.md, config/ia64/sync.md, config/mep/mep.c,
1811         config/mips/mips.md, config/mn10300/mn10300.c,
1812         config/mn10300/mn10300.h, config/pa/pa.c, config/pa/pa.md,
1813         config/rs6000/aix.h, config/rs6000/dfp.md,
1814         config/rs6000/rs6000-builtin.def, config/rs6000/rs6000-c.c,
1815         config/rs6000/vector.md, config/rtems.h, config/rx/rx.md,
1816         config/s390/s390.md, config/sol2-c.c, config/sparc/sol2-bi.h,
1817         config/sparc/sol2-gas.h, config/sparc/sparc.h, config/sparc/sparc.md,
1818         config/sparc/sparc-protos.h, config/spu/spu.c, config/spu/spu-c.c,
1819         config/t-darwin, convert.c, c.opt, c-opts.c, cp/Make-lang.in,
1820         c-pretty-print.c, c-typeck.c, df-core.c, df-scan.c, diagnostic.c,
1821         diagnostic.h, doc/cppopts.texi, doc/cpp.texi, doc/extend.texi,
1822         doc/gimple.texi, doc/languages.texi, doc/plugins.texi, doc/rtl.texi,
1823         doc/standards.texi, doc/tree-ssa.texi, doc/trouble.texi, dominance.c,
1824         fold-const.c, fortran/Make-lang.in, fwprop.c, gcc-plugin.h,
1825         gensupport.c, gimple.h, gimple-iterator.c, graphite.c,
1826         graphite-clast-to-gimple.c, graphite-clast-to-gimple.h,
1827         graphite-dependences.c, graphite-poly.c, graphite-poly.h,
1828         graphite-ppl.c, graphite-ppl.h, graphite-scop-detection.c,
1829         graphite-sese-to-poly.c, graphite-sese-to-poly.h, ifcvt.c, intl.c,
1830         intl.h, ipa.c, ipa-cp.c, ipa-inline.c, ipa-prop.c, ipa-prop.h,
1831         ipa-pure-const.c, ipa-reference.c, ipa-type-escape.c, ira-color.c,
1832         ira-conflicts.c, ira-lives.c, java/Make-lang.in, lambda-code.c,
1833         loop-invariant.c, lto/Make-lang.in, lto-streamer.h, lto-streamer-in.c,
1834         objc/Make-lang.in, objcp/Make-lang.in, omp-low.c, optc-gen.awk,
1835         opt-functions.awk, opth-gen.awk, params.def, passes.c,
1836         postreload-gcse.c, print-tree.c, recog.c, regrename.c, reload.h,
1837         rtl.def, sched-int.h, sched-rgn.c, sel-sched-dump.c, sese.c, sese.h,
1838         store-motion.c, stor-layout.c, tree-cfgcleanup.c, tree-chrec.c,
1839         tree-complex.c, tree-data-ref.c, tree.def, tree-eh.c, tree-flow.h,
1840         tree-flow-inline.h, tree.h, tree-loop-distribution.c, tree-outof-ssa.c,
1841         tree-parloops.c, tree-pass.h, tree-predcom.c, tree-profile.c,
1842         tree-scalar-evolution.c, tree-ssa-address.c, tree-ssa-alias.c,
1843         tree-ssa-coalesce.c, tree-ssa-copy.c, tree-ssa-dce.c, tree-ssa-dom.c,
1844         tree-ssa-dse.c, tree-ssa-loop-im.c, tree-ssa-loop-ivcanon.c,
1845         tree-ssa-loop-manip.c, tree-ssa-math-opts.c, tree-ssa-operands.c,
1846         tree-ssa-pre.c, tree-ssa-sccvn.c, tree-ssa-structalias.c,
1847         tree-ssa-uncprop.c, tree-tailcall.c, tree-vect-data-refs.c,
1848         tree-vect-loop.c, tree-vectorizer.h, tree-vect-slp.c, tree-vrp.c,
1849         unwind-dw2-fde-darwin.c, varpool.c: Update copyright years.
1850
1851 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1852
1853         PR other/43620
1854         * doc/install.texi (Prerequisites): Bump Automake version to 1.11.1.
1855         * aclocal.m4: Regenerate.
1856
1857 2010-04-02  Richard Guenther  <rguenther@suse.de>
1858
1859         PR tree-optimization/43629
1860         * tree-ssa-ccp.c (likely_value): Reset all_undefined_operands
1861         if we have seen a constant value.
1862
1863 2010-04-02  Joseph Myers  <joseph@codesourcery.com>
1864
1865         * read-rtl.c (read_rtx_1): Give an error for EOF while looking for ']'.
1866
1867 2010-04-02  Richard Earnshaw  <rearnsha@arm.com>
1868
1869         PR target/43469
1870         * arm.c (legitimize_tls_address): Adjust call to
1871         gen_tls_load_dot_plus_four.
1872         (arm_note_pic_base): New function.
1873         (arm_cannot_copy_insn_p): Use it.
1874         * thumb2.md (tls_load_dot_plus_four): Rework to avoid use of '+' in
1875         constraint.
1876
1877 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1878
1879         PR bootstrap/43531
1880
1881         Revert:
1882         2009-09-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1883
1884         * Makefile.in ($(out_object_file)): Depend on
1885         gt-$(basename $(notdir $(out_file))).h.
1886
1887 2010-04-01  Ralf Corsépius <ralf.corsepius@rtems.org>
1888
1889         * config.gcc (lm32-*-rtems*): Add t-lm32.
1890
1891 2010-04-01  Joel Sherrill <joel.sherrill@oarcorp.com>
1892
1893         * config.gcc: Add lm32-*-rtems*.
1894         * config/lm32/rtems.h: New file.
1895
1896 2010-04-01  Dave Korn  <dave.korn.cygwin@gmail.com>
1897
1898         PR target/42609
1899         * config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.
1900
1901 2010-04-01  Jakub Jelinek  <jakub@redhat.com>
1902
1903         * dwarf2out.c (output_compilation_unit_header): For
1904         -gdwarf-4 use version 4 instead of version 3.
1905         (output_line_info): For version 4 and above emit additional
1906         maximum ops per insn header field.
1907         (DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN): Define.
1908
1909         * dwarf2out.c (is_c_family, is_java): Remove.
1910         (lower_bound_default): New function.
1911         (add_bound_info, gen_descr_array_type_die): Use it.
1912
1913 2010-04-01  Dodji Seketeli  <dodji@redhat.com>
1914
1915         PR debug/43325
1916         * dwarf2out.c (gen_variable_die): Allow debug info for variable
1917         re-declaration when it happens in a function.
1918
1919 2010-04-01  Aldy Hernandez  <aldyh@redhat.com>
1920
1921         * cgraph.c (cgraph_add_function_insertion_hook): Update comment.
1922         (cgraph_remove_function_insertion_hook): Same.
1923         (cgraph_call_function_insertion_hooks): Same.
1924
1925 2010-04-01  Richard Guenther  <rguenther@suse.de>
1926
1927         PR middle-end/43614
1928         * tree-ssa-address.c (copy_mem_ref_info): Copy TREE_SIDE_EFFECTS
1929         and TREE_THIS_VOLATILE.
1930         (copy_ref_info): Likewise.
1931         * tree-ssa-operands.c (get_tmr_operands): Check TREE_THIS_VOLATILE.
1932         * tree.c (build6_stat): Ignore side-effects of all but arg5
1933         for TARGET_MEM_REF.  Set TREE_THIS_VOLATILE from arg5 of
1934         TARGET_MEM_REF.
1935
1936 2010-04-01  Richard Guenther  <rguenther@suse.de>
1937
1938         PR tree-optimization/43607
1939         * ipa-type-escape.c (check_call): Do not access non-existing
1940         arguments.
1941
1942 2010-04-01  Richard Guenther  <rguenther@suse.de>
1943
1944         PR middle-end/43602
1945         Revert
1946         2010-03-30  Seongbae Park <seongbae.park@gmail.com>
1947                     Jack Howarth <howarth@bromo.med.uc.edu>
1948
1949         * tree-profile.c (tree_init_ic_make_global_vars): Make static
1950         variables TLS.
1951
1952 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1953
1954         * doc/install.texi (Prerequisites): Document libelf usability on
1955         IRIX 5/6 and Solaris 2.
1956         (Specific, i?86-*-solaris2.10): No 64-bit default configuration.
1957         Update GNU as, GNU ld requirements.
1958         (Specific, *-*-solaris2*): Document Solaris 7 obsoletion, removal.
1959         Document Sun Studio compiler download.
1960         Update and simplify as, ld recommendations.
1961         (Specific, *-*-solaris2.7): Note obsoletion, removal.
1962
1963 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1964
1965         * config.gcc (i[34567]86-*-solaris2*): Default with_arch_32,
1966         with_tune_32 to pentium4.
1967
1968 2010-04-01  Uros Bizjak  <ubizjak@gmail.com>
1969
1970         * config/i386/cpuid.h (__get_cpuid_max): Move misplaced comment.
1971
1972 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1973
1974         * doc/install.texi (Specific, mips-sgi-irix5): Document IRIX 5
1975         obsoletion, removal.
1976         Update IDO URL.
1977         Document GNU as requirement.
1978         Update configure requirements.
1979         (Specific, mips-sgi-irix6): Document IRIX 6 < 6.5 obsoletion, removal.
1980         Recomment IRIX 6.5.18+.
1981         Document IDF/IDL requirement.
1982         Document GNU as requirement.
1983         Document GNU ld bootstrap failure.
1984         Remove freeware.sgi.com reference.
1985
1986 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1987
1988         * doc/install.texi (Specific, alpha*-dec-osf*): Document Tru64
1989         UNIX V4.0, V5.0 obsoletion, removal.
1990         Remove --with-gc=simple reference.
1991         Update VM requirements during bootstrap.
1992         Remove -oldas bootstrap description.
1993         Update binutils reference.
1994         Remove comparison failure note.
1995
1996 2010-03-31  Richard Guenther  <rguenther@suse.de>
1997             Zdenek Dvorak  <ook@ucw.cz>
1998             Sebastian Pop  <sebastian.pop@amd.com>
1999
2000         PR middle-end/43464
2001         * tree-ssa-copy.c (init_copy_prop): Handle loop close phi nodes
2002         with multiple arguments.
2003         (execute_copy_prop): Remove call to rewrite_into_loop_closed_ssa.
2004
2005 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2006
2007         * graphite-dependences.c (print_pddr): Call print_pdr with an
2008         extra argument.
2009         * graphite-poly.c (debug_pdr): Add an extra argument for the
2010         verbosity level.
2011         (print_pdr): Same.
2012         (print_pbb_domain): Same.
2013         (print_pbb): Same.
2014         (print_scop_context): Same.
2015         (print_scop): Same.
2016         (print_cloog): Same.
2017         (debug_pbb_domain): Same.
2018         (debug_pbb): Same.
2019         (print_pdrs): Same.
2020         (debug_pdrs): Same.
2021         (debug_scop_context): Same.
2022         (debug_scop): Same.
2023         (debug_cloog): Same.
2024         (print_scop_params): Same.
2025         (debug_scop_params): Same.
2026         (print_iteration_domain): Same.
2027         (print_iteration_domains): Same.
2028         (debug_iteration_domain): Same.
2029         (debug_iteration_domains): Same.
2030         (print_scattering_function): Same.
2031         (print_scattering_functions): Same.
2032         (debug_scattering_function): Same.
2033         (debug_scattering_functions): Same.
2034         * graphite-poly.h (debug_pdr): Update declaration.
2035         (print_pdr): Same.
2036         (print_pbb_domain): Same.
2037         (print_pbb): Same.
2038         (print_scop_context): Same.
2039         (print_scop): Same.
2040         (print_cloog): Same.
2041         (debug_pbb_domain): Same.
2042         (debug_pbb): Same.
2043         (print_pdrs): Same.
2044         (debug_pdrs): Same.
2045         (debug_scop_context): Same.
2046         (debug_scop): Same.
2047         (debug_cloog): Same.
2048         (print_scop_params): Same.
2049         (debug_scop_params): Same.
2050         (print_iteration_domain): Same.
2051         (print_iteration_domains): Same.
2052         (debug_iteration_domain): Same.
2053         (debug_iteration_domains): Same.
2054         (print_scattering_function): Same.
2055         (print_scattering_functions): Same.
2056         (debug_scattering_function): Same.
2057         (debug_scattering_functions): Same.
2058
2059 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2060
2061         * graphite-poly.c (print_scattering_function_1): New.
2062         (print_scattering_function): Call it.
2063         (print_scop_params): Remove spaces at the end of lines.
2064         (print_cloog): New.
2065         (debug_cloog): New.
2066         * graphite-poly.h (print_cloog): Declared.
2067         (debug_cloog): Declared.
2068
2069 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2070
2071         * graphite-sese-to-poly.c (graphite_loop_normal_form): Add the IV bump
2072         in loop->header.
2073         * tree-flow.h (canonicalize_loop_ivs): Updated declaration.
2074         * tree-parloops.c (gen_parallel_loop): Add the IV bump in loop->latch.
2075         * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Add a new parameter
2076         to switch between adding the IV bump in loop->latch or in loop->header.
2077
2078 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
2079
2080         * graphite-poly.c (print_scattering_function): Pretty print following
2081         the scoplib format.
2082         (print_pdr): Same.
2083         (print_pbb_domain): Same.
2084         (dump_gbb_cases): Same.
2085         (dump_gbb_conditions): Same.
2086         (print_pdrs): Same.
2087         (print_pbb): Same.
2088         (print_scop_params): Same.
2089         (print_scop_context): Same.
2090         (print_scop): Same.
2091         (print_pbb_body): New.
2092         (lst_indent_to): New.
2093         (print_lst): Start new lines with a #.
2094         * graphite-poly.h (pbb_bb): New.
2095         (pbb_index): Use pbb_bb.
2096         * graphite-ppl.c (ppl_print_powerset_matrix): Print the number of
2097         disjuncts.
2098         * tree-data-ref.c (dump_data_reference): Start new lines with a #.
2099
2100 2010-03-31  Jakub Jelinek  <jakub@redhat.com>
2101
2102         * dwarf2out.c (size_of_die): For -gdwarf-4 use
2103         uleb128 size instead of fixed 1 or 2 for dw_val_class_loc
2104         and 0 instead of 1 for dw_val_class_flag.
2105         (value_format): For -gdwarf-4 use DW_FORM_sec_offset for
2106         dw_val_class_range_list, dw_val_class_loc_list,
2107         dw_val_class_lineptr and dw_val_class_macptr, use
2108         DW_FORM_flag_present for dw_val_class_flag and
2109         DW_FORM_exprloc for dw_val_class_loc.
2110         (output_die): For -gdwarf-4 print dw_val_class_loc
2111         size as uleb128 instead of 1 or 2 bytes and don't print
2112         anything for dw_val_class_flag.
2113
2114         * var-tracking.c (vt_init_cfa_base): Use cselib_lookup_from_insn
2115         instead of cselib_lookup following by tweaking locs->setting_insn.
2116
2117         PR bootstrap/43596
2118         * cselib.c (cselib_process_insn): Clear cselib_current_insn
2119         even before returning from label, setjmp call or volatile asm
2120         handling.
2121
2122 2010-03-31  Richard Guenther  <rguenther@suse.de>
2123
2124         PR middle-end/43600
2125         * cgraphunit.c (cgraph_output_in_order): Do not allocate
2126         temporary data on stack.
2127
2128 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2129
2130         * config/sparc/sysv4.h (PUSHSECTION_FORMAT): Remove undef.
2131         (PUSHSECTION_ASM_OP): Remove.
2132         (POPSECTION_ASM_OP): Remove.
2133         (PUSHSECTION_FORMAT): Remove.
2134         * config/sol2.h (PUSHSECTION_FORMAT): Define.
2135         * config/sparc/sol2.h [!USE_GAS] (PUSHSECTION_FORMAT): Redefine.
2136         * config/sol2.c (solaris_output_init_fini): Use it.
2137
2138 2010-03-31  Jie Zhang  <jie@codesourcery.com>
2139
2140         PR 43574
2141         * opt-functions.awk (var_type_struct): Use signed char type
2142         for simple variables.
2143
2144 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2145
2146         * config/sol2.c: Include output.h.
2147         (solaris_assemble_visibility): New function.
2148         * config/t-sol2 (sol2.o): Add output.h dependency.
2149         * config/sol2-protos.h (solaris_assemble_visibility): Declare.
2150         * config/sol2.h [!USE_GAS] (TARGET_ASM_ASSEMBLE_VISIBILITY):
2151         Redefine.
2152
2153 2010-03-31  Jakub Jelinek  <jakub@redhat.com>
2154
2155         PR target/43580
2156         * config/arm/arm.c (arm_save_coproc_regs): Use Pmode instead of
2157         V2SImode or XFmode on PRE_DEC.
2158
2159         PR debug/43557
2160         * cfgexpand.c (expand_debug_expr): Handle VOIDmode mode like
2161         BLKmode.
2162
2163 2010-03-31  Jie Zhang  <jie@codesourcery.com>
2164
2165         PR 43562
2166         * reload.h (caller_save_initialized_p): Declare.
2167         * toplev.c (backend_init_target): Don't call
2168         init_caller_save but set caller_save_initialized_p to false.
2169         * caller-save.c (caller_save_initialized_p): Define.
2170         (init_caller_save): Check caller_save_initialized_p.
2171         * ira.c (ira): Call init_caller_save if flag_caller_saves.
2172
2173 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2174
2175         PR target/39048
2176         * config.gcc (i[34567]86-*-solaris2*): Add i386/t-fprules-softfp
2177         and soft-fp/t-softfp to tmake_file.
2178         * config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Redefine.
2179         (LIBGCC2_TF_CEXT): Define.
2180         (TF_SIZE): Define.
2181
2182 2010-03-30  Alexandre Oliva  <aoliva@redhat.com>
2183
2184         PR debug/42977
2185         * cselib.c (n_useless_values): Document handling of debug locs.
2186         (n_useless_debug_values, n_debug_values): New variables.
2187         (new_elt_loc_list): Don't add to debug values, keep count.
2188         (promote_debug_loc): New.
2189         (cselib_reset_table): Zero new variables.
2190         (entry_and_rtx_equal_p): Promote debug locs.
2191         (discard_useless_locs): Increment n_useless_debug_values for
2192         debug values.
2193         (remove_useless_values): Adjust n_useless_values and n_debug_values
2194         with n_useless_debug_values.
2195         (add_mem_for_addr): Promote debug locs.
2196         (cselib_lookup_mem): Likewise.
2197         (cselib_lookup_addr): Renamed to...
2198         (cselib_lookup_addr_1): ... this.  Promote debug locs.  Don't call...
2199         (cselib_log_lookup): ... this.  Turn into...
2200         (cselib_lookup_addr): ... new wrapper.
2201         (cselib_lookup_from_insn): New.
2202         (cselib_invalidate_regno): Increment n_useless_debug_values for
2203         debug values.
2204         (cselib_invalidate_mem): Likewise.
2205         (cselib_process_insn): Take n_deleted and n_debug_values into
2206         account to guard remove_useless_value call.
2207         (cselib_finish): Zero n_useless_debug_values.
2208         * cselib.h (cselib_lookup_from_insn): Declare.
2209         * sched-deps.c (sched_analyze_1): Use cselib_lookup_from_insn.
2210         (sched_analyze_2): Likewise.
2211
2212 2010-03-30  Jakub Jelinek  <jakub@redhat.com>
2213
2214         * var-tracking.c (use_narrower_mode_test, use_narrower_mode): New
2215         functions.
2216         (adjust_mems): Replace narrowing SUBREG of expression containing
2217         just PLUS, MINUS, MULT and ASHIFT of registers and constants
2218         with operations in the narrower mode.
2219
2220         PR debug/43593
2221         * var-tracking.c (dataflow_set_clear_at_call): Invalidate just
2222         regs_invalidated_by_call instead all call_used_reg_set registers.
2223
2224 2010-03-30  Sebastian Pop  <sebastian.pop@amd.com>
2225
2226         PR middle-end/43430
2227         * tree-vect-slp.c (vect_get_and_check_slp_defs): Replace type
2228         pointer comparisons with types_compatible_p.
2229         * tree-vect-stmts.c (vectorizable_call): Same.
2230         (vectorizable_condition): Same.
2231
2232 2010-03-30  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2233
2234         * config/s390/s390.c (s390_emit_prologue): Omit issuing a dynamic
2235         stack check if the mask would be zero.
2236
2237 2010-03-30  Seongbae Park <seongbae.park@gmail.com>
2238             Jack Howarth <howarth@bromo.med.uc.edu>
2239
2240         * tree-profile.c (tree_init_ic_make_global_vars): Make static
2241         variables TLS.
2242
2243 2010-03-30  Joseph Myers  <joseph@codesourcery.com>
2244
2245         PR other/25232
2246         * libgcc-std.ver (GCC_4.5.0): Define version.  Include __unordxf2
2247         and __unordtf2.
2248         * config/bfin/libgcc-bfin.ver (GCC_4.5.0): Define version.
2249         Include ___unordxf2 and ___unordtf2.
2250         * config/i386/libgcc-glibc.ver: Do not define inheritance from
2251         GCC_4.4.0 here.
2252
2253 2010-03-30  Tarik Graba  <tarik.graba@telecom-paristech.fr>
2254
2255         * config/lm32/t-lm32: New file.
2256         * config.gcc: Use the above file when targetting lm32.
2257
2258 2010-03-28  Duncan Sands  <baldrick@free.fr>
2259
2260         * Makefile.in (PLUGIN_HEADERS): Add except.h.
2261
2262 2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>
2263
2264         PR middle-end/43431
2265         * tree-vect-loop.c (vect_estimate_min_profitable_iters):
2266         Improve vectorization cost model diagnostic.
2267
2268 2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>
2269
2270         PR middle-end/43436
2271         * tree-vect-data-refs.c (vect_analyze_data_refs): When
2272         compute_data_dependences_for_loop returns false, early exit
2273         and output an extra diagnostic for the failed data reference
2274         analysis.
2275
2276 2010-03-29  Richard Guenther  <rguenther@suse.de>
2277
2278         PR tree-optimization/43560
2279         * tree-ssa-loop-im.c (ref_always_accessed_p): Add store_p parameter.
2280         (can_sm_ref_p): Treat stores to readonly locations as trapping.
2281
2282 2010-03-29  Jie Zhang  <jie@codesourcery.com>
2283
2284         PR 43564
2285         * toplev.c (process_options): Set optimization_default_node
2286         and optimization_current_node.
2287         * opts.c (decode_options): Don't set optimization_default_node
2288         and optimization_current_node.
2289
2290 2010-03-29  Ralf Corsépius  <ralf.corsepius@rtems.org>
2291
2292         * config/rtems.h: Abandon -qrtems_debug.
2293
2294 2010-03-28  Jan Hubicka  <jh@suse.cz>
2295
2296         PR tree-optimization/43505
2297         * cgraph.c (cgraph_clone_node): When clonning a clone, replacement
2298         map should not be copied.
2299
2300 2010-03-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2301
2302         PR middle-end/41674
2303         * cgraphunit.c (cgraph_build_static_cdtor): If target doesn't have
2304         cdtors, set DECL_PRESERVE_P.
2305         * ipa.c (cgraph_externally_visible_p): Return true if declaration
2306         should be preseved.
2307
2308 2010-03-27  Uros Bizjak  <ubizjak@gmail.com>
2309
2310         PR tree-optimization/43528
2311         * stor-layout.c (place_field): Check that constant fits into
2312         unsigned HWI when skipping calculation of MS bitfield layout.
2313
2314 2010-03-27  Jan Hubicka  <jh@suse.cz>
2315
2316         PR middle-end/43391
2317         * varasm.c (make_decl_rtl): Deal with COMMON flag to make
2318         notice_global_symbol work.
2319
2320 2010-03-27  Jakub Jelinek  <jakub@redhat.com>
2321
2322         * dwarf2out.c (dwarf2_debug_hooks): Use dwarf2out_function_decl
2323         instead of dwarf2out_decl.
2324         (struct var_loc_node): Remove section_label field.
2325         (dwarf2out_function_decl): New function.
2326         (dwarf2out_var_location): Don't set section_label field.
2327         (dwarf2out_begin_function): Don't empty decl_loc_table here.
2328
2329 2010-03-26  Michael Meissner  <meissner@linux.vnet.ibm.com>
2330
2331         PR tree-optimization/43544
2332         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION):
2333         First argument for builtin vectorized function hook is now a
2334         tree to be able to distinguish between machine specific and
2335         standard builtins.
2336         * targhooks.c (default_builtin_vectorized_function): Ditto.
2337         * targhooks.h (default_builtin_vectorized_function): Ditto.
2338         * target.h (struct gcc_target): Ditto.
2339         * tree-vect-stmts.c (vectorizable_function): Ditto.
2340         * config/i386/i386.c (ix86_builtin_vectorized_function): Ditto.
2341         * config/rs6000/rs6000.c (rs6000_builtin_vectorized_function):
2342         Ditto.
2343
2344 2010-03-26  Joseph Myers  <joseph@codesourcery.com>
2345
2346         PR c/43381
2347         * c-decl.c (get_parm_info): Assert that decl going in OTHERS has a
2348         nested binding iff it is a FUNCTION_DECL.
2349         (store_parm_decls_newstyle): Pass nested=true to bind for
2350         FUNCTION_DECLs amongst parameters.
2351
2352 2010-03-26  Jakub Jelinek  <jakub@redhat.com>
2353
2354         * var-tracking.c (vt_expand_loc_callback): Don't run
2355         cselib_expand_value_rtx_cb in dummy mode if
2356         cselib_dummy_expand_value_rtx_cb returned false.
2357
2358         * var-tracking.c (emit_note_insn_var_location): For one part
2359         notes with offset 0, don't add EXPR_LIST around the location.
2360         * dwarf2out.c (loc_descriptor, dw_loc_list_1,
2361         add_location_or_const_value_attribute): Adjust for that change.
2362
2363         PR debug/43540
2364         * dwarf2out.c (reg_save): For DW_CFA_expression put regnum
2365         into first operand and location into second.
2366         (dw_cfi_oprnd1_desc): Return dw_cfi_oprnd_reg_num instead of
2367         dw_cfi_oprnd_loc for DW_CFA_expression.
2368         (dw_cfi_oprnd2_desc): Return dw_cfi_oprnd_loc for DW_CFA_expression.
2369         (output_cfa_loc, output_cfa_loc_raw): For DW_CFA_expression
2370         assume first argument is regnum and second argument is location.
2371
2372 2010-03-26  Uros Bizjak  <ubizjak@gmail.com>
2373
2374         PR target/42113
2375         * config/alpha/alpha.md (*cmp_sadd_si): Change mode
2376         of scratch register to DImode.  Split to DImode comparison operator.
2377         Use SImode subreg of scratch register in the multiplication.
2378         (*cmp_sadd_sidi): Ditto.
2379         (*cmp_ssub_si): Ditto.
2380         (*cmp_ssub_sidi): Ditto.
2381
2382 2010-03-26  Uros Bizjak  <ubizjak@gmail.com>
2383
2384         PR target/43524
2385         * config/i386/i386.c (ix86_expand_prologue) [TARGET_STACK_PROBE]:
2386         Remove invalid assert and wrong comment.
2387
2388 2010-03-26  Jakub Jelinek  <jakub@redhat.com>
2389
2390         PR debug/43516
2391         * flags.h (final_insns_dump_p): New extern.
2392         * final.c (final_insns_dump_p): New variable.
2393         (rest_of_clean_state): Set it before -fdump-final-insns=
2394         dumping, clear afterwards.
2395         * print-rtl.c (print_rtx): If final_insns_dump_p don't dump
2396         MEM_ALIAS_SET on MEMs.
2397
2398 2010-03-26  David S. Miller  <davem@davemloft.net>
2399
2400         * configure.ac: Fix sparc GOTDATA_OP bug check.
2401         * configure: Rebuild.
2402
2403 2010-03-26  Alan Modra  <amodra@gmail.com>
2404
2405         * config/rs6000/rs6000.md (cmptf_internal2): Correct comparison.
2406
2407 2010-03-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2408
2409         * doc/tm.texi (Sections): Document TLS_COMMON_ASM_OP,
2410         TLS_SECTION_ASM_FLAG.
2411
2412 2010-03-25  Jakub Jelinek  <jakub@redhat.com>
2413
2414         PR bootstrap/43511
2415         * config/i386/i386.c (ix86_code_end): Set DECL_WEAK if TARGET_MACHO.
2416         Clear first_function_block_is_cold.
2417
2418         PR c/43385
2419         * gimplify.c (gimple_boolify): Only recurse on __builtin_expect
2420         argument if the argument is truth_value_p.
2421
2422 2010-03-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
2423
2424         * config/rs6000/constraints.md: Update copyright year for my changes.
2425
2426         PR target/43484
2427         * config/rs6000/rs6000.c (rs6000_split_multireg_move): If r0 is
2428         used in reg+reg addressing, swap registers.
2429
2430 2010-03-24  Jakub Jelinek  <jakub@redhat.com>
2431
2432         PR debug/43293
2433         * target.h (struct gcc_target): Add code_end hook.
2434         * target-def.h (TARGET_ASM_CODE_END): Define to hook_void_void
2435         if not yet defined.
2436         (TARGET_ASM_OUT): Add TARGET_ASM_CODE_END.
2437         * toplev.c (compile_file): Call targetm.asm_out.code_end
2438         hook before unwind info/debug info output.
2439         * config/i386/winnt.c (i386_pe_file_end): Don't call ix86_file_end.
2440         * config/i386/linux.h (NEED_INDICATE_EXEC_STACK): Don't define.
2441         (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
2442         * config/i386/linux64.h (NEED_INDICATE_EXEC_STACK): Don't define.
2443         (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
2444         * config/i386/i386.c (ix86_file_end): Renamed to...
2445         (ix86_code_end): ... this.  Make static.  Don't call
2446         file_end_indicate_exec_stack.  Emit unwind info using
2447         final_start_function/final_end_function.
2448         (darwin_x86_file_end): Remove.
2449         (TARGET_ASM_CODE_END): Define.
2450         * config/i386/i386.h (TARGET_ASM_FILE_END,
2451         NEED_INDICATE_EXEC_STACK): Don't define.
2452         * config/i386/darwin.h (darwin_x86_file_end): Remove prototype.
2453         (TARGET_ASM_FILE_END): Define to darwin_file_end.
2454         * config/i386/i386-protos.h (ix86_file_end): Remove prototype.
2455         * doc/tm.texi (TARGET_ASM_CODE_END): Document.
2456
2457         PR target/43498
2458         * config/i386/i386.c (x86_output_mi_thunk): Call final_start_function
2459         at the beginning and final_end_function at the end.
2460         * config/s390/s390.c (s390_output_mi_thunk): Likewise.
2461
2462 2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2463
2464         * configure.ac (i[34567]86-*-*): Handle Solaris 2/x86 TLS support
2465         and Sun as TLS syntax.
2466         (TLS_SECTION_ASM_FLAG) [on_solaris && !gas_flag]: Define.
2467         * configure: Regenerate.
2468         * config.in: Regenerate.
2469         * varasm.c (TLS_SECTION_ASM_FLAG): Define default.
2470         (default_elf_asm_named_section): Use it.
2471         * config/i386/i386.c (output_pic_addr_const): Lowercase @DTPOFF.
2472         (i386_output_dwarf_dtprel): Likewise.
2473         (output_addr_const_extra): Likewise.
2474         (output_pic_addr_const): Lowercase @GOTTPOFF.
2475         (output_addr_const_extra): Likewise.
2476         (output_pic_addr_const): Lowercase @GOTNTPOFF.
2477         (output_addr_const_extra): Likewise.
2478         (output_pic_addr_const): Lowercase @INDNTPOFF.
2479         (output_addr_const_extra): Likewise.
2480         (output_pic_addr_const): Lowercase @NTPOFF.
2481         (output_addr_const_extra): Likewise.
2482         (output_pic_addr_const): Lowercase @TPOFF.
2483         (output_addr_const_extra): Likewise.
2484         * config/i386/i386.md (*tls_global_dynamic_32_gnu): Lowercase @TLSGD.
2485         (*tls_global_dynamic_64): Likewise.
2486         (*tls_local_dynamic_base_32_gnu): Lowercase @TLSLDM.
2487         (*tls_local_dynamic_base_64): Lowercase @TLSLD.
2488
2489         * defaults.h (TLS_COMMON_ASM_OP): Provide default.
2490         (ASM_OUTPUT_TLS_COMMON): Use it.
2491         * config/i386/sol2-gas.h (TLS_COMMON_ASM_OP): Undef.
2492
2493         PR target/38118
2494         * config.gcc (sparc*-*-solaris2*) [$gas=yes]: Add usegas.h to tm_file.
2495         * config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Move ...
2496         * config/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): ... here.
2497         * config/i386/sol2-10.h (ASM_OUTPUT_ALIGNED_COMMON): Redefine.
2498         * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.
2499         (ASM_DECLARE_OBJECT_NAME) [!USE_GAS]: Redefine.
2500
2501 2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2502
2503         * config/i386/i386.c (override_options): Don't accept
2504         -mtls-dialect=sun any longer.
2505         * config/i386/i386.h (TARGET_SUN_TLS): Define as 0.
2506         * config/i386/i386.md (*tls_global_dynamic_32_sun): Remove.
2507         (*tls_local_dynamic_base_32_sun): Likewise.
2508         * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.
2509
2510 2010-03-24  Jakub Jelinek  <jakub@redhat.com>
2511
2512         PR debug/43508
2513         * dwarf2out.c (mem_loc_descriptor): Don't ICE on
2514         VEC_{MERGE,SELECT,CONCAT,DUPLICATE}.
2515
2516         PR debug/43479
2517         * ira.c (adjust_cleared_regs): New function.
2518         (update_equiv_regs): Adjust cleared_regs in DEBUG_INSNs.
2519
2520         PR debug/19192
2521         PR debug/43479
2522         * cfgexpand.c (gimple_assign_rhs_to_tree): Also set TREE_BLOCK
2523         from gimple_block.
2524         * expr.c (expand_expr_real): Restore previous
2525         curr_insn_source_location and curr_insn_block after
2526         expand_expr_real_1 call.
2527         (expand_expr_real_1) <case SSA_NAME>: Call expand_expr_real
2528         instead of expand_expr_real_1.
2529
2530 2010-03-23  Vladimir Makarov  <vmakarov@redhat.com>
2531
2532         PR rtl-optimization/43413
2533         * ira-color.c (setup_allocno_available_regs_num): Count prohibited
2534         hard regs too.
2535
2536 2010-03-22  James E. Wilson  <wilson@codesourcery.com>
2537
2538         PR target/43348
2539         * ia64.md (call_nogp, call_value_nogp, sibcall_nogp, call_gp,
2540         call_value_gp, sibcall_gp): Use 's' constraint not 'i'.
2541
2542 2010-03-22  H.J. Lu  <hongjiu.lu@intel.com>
2543
2544         * config/i386/i386.c (ix86_target_string): Add -mfma.
2545         Fix a typo in comment.
2546
2547 2010-03-22  Mike Stump  <mikestump@comcast.net>
2548
2549         PR target/23071
2550         * config/rs6000/rs6000.c (darwin_rs6000_special_round_type_align):
2551         Don't overly align based upon packed packed fields.
2552
2553 2010-03-22  Jason Merrill  <jason@redhat.com>
2554
2555         * c-pretty-print.c (pp_c_specifier_qualifier_list) [VECTOR_TYPE]:
2556         Use () rather than [], and move before the element type.
2557
2558 2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2559
2560         * doc/configfiles.texi (Configuration Files): Removed
2561         fixinc/Makefile*, intl/Makefile.*.
2562         * doc/makefile.texi: Fixed markup. Abstract from version
2563         control system used.
2564         (Makefile): Removed obsolete gcc/java/parse.y example.
2565         * doc/sourcebuild.texi: Likewise.
2566         (Top Level): Added config, gnattools, libdecnumber, libgcc,
2567         libgomp, libssp.  Removed fastjar.
2568         (Miscellaneous Docs): Clarify location.
2569         Added COPYING3, COPYING3.LIB.
2570         (Front End Directory): Moved Make-lang.in entry to new subsubsection.
2571
2572 2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2573
2574         PR target/38085
2575         * config/i386/i386.c (x86_function_profiler)
2576         [!NO_PROFILE_COUNTERS]: Fix typo.
2577         * config/i386/gmon-sol2.c (_mcleanup) [__x86_64__]: Use call
2578         instead of callq.
2579
2580 2010-03-22  Janis Johnson  <janis187@us.ibm.com>
2581             Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2582
2583         * doc/sourcebuild.texi (Test Directives): Split into six
2584         subsections, with most of the current text in new subsections
2585         Directives, Selectors, and Final Actions.
2586         (Directives): Split list of test directives into multiple
2587         subsubsections.
2588         (Selectors): Describe use and syntax of selectors.
2589         (Effective-Target Keywords): Describe all existing keywords.
2590         (Add Options): Describe features for dg-add-options.
2591         (Require Support): Describe variants of dg-require-support.
2592         (Final Actions): Describe commands to use in dg-final.
2593
2594 2010-03-22  Michael Matz  <matz@suse.de>
2595
2596         PR middle-end/43475
2597         * recog.c (validate_replace_rtx_group): Replace also in
2598         REG_EQUAL and REG_EQUIV notes.
2599
2600 2010-03-22  Richard Guenther  <rguenther@suse.de>
2601
2602         PR tree-optimization/43390
2603         * tree-vect-stmts.c (get_vectype_for_scalar_type): Make
2604         sure vector extracts are type correct.
2605
2606 2010-03-22  Richard Guenther  <rguenther@suse.de>
2607
2608         PR middle-end/40106
2609         * builtins.c (expand_builtin_pow): Expand pow (x, 1.5) as
2610         x * sqrt (x) even when optimizing for size if the target
2611         has native support for sqrt.
2612
2613 2010-03-22  Jakub Jelinek  <jakub@redhat.com>
2614
2615         * varasm.c (make_decl_rtl_for_debug): Also clear
2616         flag_mudflap for the duration of make_decl_rtl call.
2617
2618         PR debug/43443
2619         * var-tracking.c (add_cselib_value_chains): Remove ASM_OPERANDS
2620         locs from preserved VALUEs.
2621
2622 2010-03-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2623
2624         PR middle-end/42718
2625         * pa.md (movmemsi): Set align to one if zero.
2626         (movmemdi): Likewise.
2627
2628 2010-03-21  Richard Earnshaw  <rearnsha@arm.com>
2629
2630         PR target/42321
2631         * arm.c (arm_output_epilogue): Correctly match VFP pop instructions
2632         with their corresponding prologue pushes.
2633
2634 2010-03-20  Andrew Pinski  <pinskia@gmail.com>
2635
2636         PR target/43156
2637         * config/spu/spu.c (spu_expand_prologue): Don't emit NOTE_INSN_DELETED
2638         at the begining or end.
2639         (spu_expand_epilogue): Likewise.
2640
2641 2010-03-20  Richard Guenther  <rguenther@suse.de>
2642
2643         PR rtl-optimization/43438
2644         * combine.c (make_extraction): Properly zero-/sign-extend an
2645         extraction of the low part of a CONST_INT.  Also handle
2646         CONST_DOUBLE.
2647
2648 2010-03-19  Mike Stump  <mikestump@comcast.net>
2649
2650         * config/i386/darwin.h (SUBTARGET32_DEFAULT_CPU): Add.
2651         * config/i386/i386.c (SUBTARGET32_DEFAULT_CPU): Add.
2652         (override_options): Use SUBTARGET32_DEFAULT_CPU.
2653
2654 2010-03-19  Andrew Pinski  <andrew_pinski@caviumnetworks.com>
2655
2656         PR c/43211
2657         * c-decl.c (grokparms): Set arg_types to NULL_TREE if there was
2658         an error.
2659
2660 2010-03-19  Bernd Schmidt  <bernds@codesourcery.com>
2661
2662         PR rtl-optimization/42258
2663         * ira-lives.c (check_and_make_def_conflict): Ignore conflict for a
2664         use that may match DEF.
2665
2666         PR target/40697
2667         * optabs.c (avoid_expensive_constant): Use rtx_cost to find out
2668         the cost of loading the constant rather than assuming
2669         COSTS_N_INSNS (1).
2670         * config/arm/arm.c (thumb1_rtx_costs) <case CONST_INT>: If the
2671         outer code is AND, do the same tests as the andsi3 expander and
2672         return COSTS_N_INSNS (1) if and is cheap.
2673
2674         * optabs.c (avoid_expensive_constant): Fix formatting.
2675
2676 2010-03-19  Michael Matz  <matz@suse.de>
2677
2678         PR c++/43116
2679         * attribs.c (decl_attributes): When rebuilding a function pointer
2680         type use the same qualifiers as the original pointer type.
2681
2682 2010-03-19  Martin Jambor  <mjambor@suse.cz>
2683
2684         * doc/gimple.texi (Logical Operators): Describe is_gimple_ip_invariant
2685         and is_gimple_ip_invariant_address.
2686
2687 2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2688
2689         Revert
2690         2009-10-01  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2691
2692         * config/arm/arm.c (arm_override_options): Turn off
2693         flag_dwarf2_cfi_asm for AAPCS variants.
2694
2695 2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2696
2697         PR target/43399
2698         * config/arm/arm.c (emit_multi_reg_push): Update comments.
2699         Use PRE_MODIFY instead of PRE_DEC.
2700         (emit_sfm): Use PRE_MODIFY instead of PRE_DEC.
2701         (vfp_emit_fstmd): Likewise.
2702
2703 2010-03-19  Michael Matz  <matz@suse.de>
2704
2705         PR target/43305
2706         * builtins.c (expand_builtin_interclass_mathfn,
2707         expand_builtin_signbit): Use maybe_emit_unop_insn, emit libcalls
2708         if that fails.
2709
2710 2010-03-19  Richard Guenther  <rguenther@suse.de>
2711
2712         PR tree-optimization/43415
2713         * tree-ssa-pre.c (phi_translate): Split out worker to ...
2714         (phi_translate_1): ... this.
2715         (phi_translate): Move all caching here.  Cache all NARY
2716         and REFERENCE translations.
2717
2718 2010-03-19  David S. Miller  <davem@davemloft.net>
2719
2720         With help from Eric Botcazou.
2721         * config/sparc/sparc.c: Include dwarf2out.h.
2722         (emit_pic_helper): Delete.
2723         (pic_helper_symbol_name): Delete.
2724         (pic_helper_emitted_p): Delete.
2725         (pic_helper_needed): New.
2726         (USE_HIDDEN_LINKONCE): Define to '1' if HAVE_GAS_HIDDEN else '0'.
2727         (get_pc_thunk_name): New.
2728         (load_pic_register): Remove 'delay_pic_helper' arg.  Use
2729         get_thunk_pc_name and ggc_strdup to generate PIC thunk symbol.
2730         Set pic_helper_needed to true.  Don't call emit_pic_helper.
2731         (sparc_expand_prologue): Update load_pic_register call.
2732         (sparc_output_mi_thunk): Likewise.
2733         (sparc_file_end): Emit a hidden comdat symbol for the PIC
2734         thunk if possible.  Output CFI information as needed.
2735
2736 2010-03-18  Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
2737             Jack Howarth <howarth@bromo.med.uc.edu>
2738
2739         PR target/36399
2740         * config/i386/i386.h: Fix ABI on darwin x86-32.
2741
2742 2010-03-18  Aldy Hernandez  <aldyh@redhat.com>
2743
2744         * tree.h: Declare make_decl_rtl_for_debug.
2745         * varasm.c (make_decl_rtl_for_debug): New.
2746         * dwarf2out.c (rtl_for_decl_location): Call it.
2747         * cfgexpand.c (expand_debug_expr): Call it.
2748
2749 2010-03-18  Jakub Jelinek  <jakub@redhat.com>
2750
2751         PR bootstrap/43399
2752         * var-tracking.c (adjust_mems) <case POST_MODIFY>: Allow BLKmode
2753         mem_mode.
2754
2755         PR bootstrap/43403
2756         * var-tracking.c (vt_init_cfa_base): Do nothing if
2757         cfa_base_rtx would be hard_frame_pointer_rtx or non-fixed register.
2758
2759 2010-03-18  Alexandre Oliva  <aoliva@redhat.com>
2760
2761         PR debug/42873
2762         * var-tracking.c (canonicalize_vars_star): New.
2763         (dataflow_post_merge_adjust): Use it.
2764
2765 2010-03-18  Jakub Jelinek  <jakub@redhat.com>
2766
2767         PR debug/43058
2768         * var-tracking.c (non_suitable_const): New function.
2769         (add_uses): For DEBUG_INSNs with constants, don't record any
2770         value, instead just the constant value itself.
2771         (compute_bb_dataflow) <case MO_VAL_LOC>: If PAT_VAR_LOCATION_LOC
2772         is not VAR_LOC_UNKNOWN_P, set var to the constant.
2773         (emit_notes_in_bb): Likewise.
2774         (emit_note_insn_var_location): For onepart variables if
2775         cur_loc is a VOIDmode constant, use DECL_MODE.
2776
2777 2010-03-18  Martin Jambor  <mjambor@suse.cz>
2778
2779         PR middle-end/42450
2780         * cgraph.h (cgraph_redirect_edge_call_stmt_to_callee): Declare.
2781         * cgraphunit.c (cgraph_materialize_all_clones): Update calls in
2782         all non-clones.  Moved call redirection...
2783         (cgraph_redirect_edge_call_stmt_to_callee): ...to this new function.
2784         (cgraph_materialize_all_clones): Dispose of all
2785         combined_args_to_skip bitmaps.
2786         (verify_cgraph_node): Do not check for edges pointing to wrong
2787         nodes in inline clones.
2788         * tree-inline.c (copy_bb): Call
2789         cgraph_redirect_edge_call_stmt_to_callee.
2790         * ipa.c (cgraph_remove_unreachable_nodes): Call
2791         cgraph_node_remove_callees even when there are used clones.
2792
2793 2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>
2794
2795         * config/i386/libgcc-glibc.ver: Make GCC_4.5.0 inherit GCC_4.4.0.
2796
2797 2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>
2798
2799         PR target/43383
2800         * config/i386/libgcc-glibc.ver: Add __extendxftf2 to GCC_4.5.0
2801         for 32bit.
2802
2803 2010-03-18  Michael Matz  <matz@suse.de>
2804
2805         PR middle-end/43419
2806         * builtins.c (expand_builtin_pow): Don't transform pow(x, 0.5)
2807         into sqrt(x) if we need to preserve signed zeros.
2808
2809 2010-03-18  Steven Bosscher  <steven@gcc.gnu.org>
2810             Eric Botcazou  <ebotcazou@adacore.com>
2811
2812         PR rtl-optimization/43360
2813         * loop-invariant.c (move_invariant_reg): Remove the REG_EQUAL
2814         note if we don't know its invariant status.
2815
2816 2010-03-18  Michael Matz  <matz@suse.de>
2817
2818         PR tree-optimization/43402
2819         * tree-cfgcleanup.c (cleanup_control_expr_graph): Don't follow
2820         PHI chains of ssa names registered for update.
2821
2822 2010-03-17  Peter Bergner  <bergner@vnet.ibm.com>
2823
2824         PR target/42427
2825         * config/rs6000/rs6000.c (rs6000_split_multireg_move): Add support for
2826         non-offsettable and pre_modify update addressing.
2827         * config/rs6000/dfp.md (*movdd_hardfloat32): Make the "0", "1"
2828         and "2" alternatives "#".
2829         (*movdd_softfloat32): Make all alternatives "#";
2830         * config/rs6000/rs6000.md (DIFD): New define_mode_iterator.
2831         (*movdf_hardfloat32): Make the "0", "1" and "2" alternatives "#".
2832         (*movdf_softfloat32): Make all alternatives "#";
2833         (movdi): Use the new DIFD mode iterator to create a common splitter
2834         for movdi, movdf and movdd patterns.
2835
2836 2010-03-18  Shujing Zhao  <pearly.zhao@oracle.com>
2837
2838         * common.opt (dumpdir): Remove redundant tab.
2839
2840 2010-03-17  Martin Jambor  <mjambor@suse.cz>
2841
2842         PR tree-optimization/43347
2843         * tree-sra.c (create_access_replacement): Set TREE_NO_WARNING when the
2844         original base is DECL_ARTIFICIAL or DECL_IGNORED_P.
2845
2846 2010-03-17  Bernd Schmidt  <bernd.schmidt@analog.com>
2847
2848         PR rtl-optimization/42216
2849         * regrename.c (create_new_chain): New function, broken out from...
2850         (scan_rtx_reg): ... here.  Call it.  Handle the case where we are
2851         appending a use to an empty chain.
2852         (build_def_use): Remove previous changes that convert OP_INOUT to
2853         OP_OUT operands; instead detect the case where an OP_INOUT operand
2854         uses a previously untracked register and create an empty chain for it.
2855
2856 2010-03-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2857
2858         * doc/extend.texi (Function Attributes): Rewrite unfinished
2859         sentence in ms_abi documentation.
2860
2861 2010-03-17  Alan Modra  <amodra@gmail.com>
2862
2863         * config/rs6000/linux64.opt (mprofile-kernel): Use profile_kernel var.
2864         * config/rs6000/linux64.h (TARGET_PROFILE_KERNEL): Define.
2865         (SUBSUBTARGET_OVERRIDE_OPTIONS): Don't use SET_PROFILE_KERNEL.
2866         * config/rs6000/rs6000.c (SET_PROFILE_KERNEL): Don't define.
2867
2868 2010-03-16  Richard Henderson  <rth@redhat.com>
2869
2870         PR middle-end/43365
2871         * tree-eh.c (replace_goto_queue): Also replace in the eh_seq.
2872         (lower_try_finally): Save and restore eh_seq around the expansion
2873         of the try-finally.
2874
2875 2010-03-16  Aldy Hernandez  <aldyh@redhat.com>
2876
2877         * graphite-sese-to-poly.c (split_reduction_stmt): Skip debug
2878         statements before splitting block.
2879
2880 2010-03-16  Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2881
2882         * doc/sourcebuild.texi (Testsuites): Fix markup.
2883         Use pathnames relative to gcc/testsuite.
2884         (Test Directives): Move description of how timeout is determined.
2885         (Ada Tests): Favor gnat.exp over ada/acats/tests/gcc.
2886         (C Tests): Correct gcc.misc-tests directory.
2887         Framework tests now live in gcc.test-framework.
2888
2889 2010-03-16  Richard Guenther  <rguenther@suse.de>
2890
2891         PR middle-end/43379
2892         * tree-cfg.c (gimple_merge_blocks): When propagating virtual PHI
2893         operands make sure to merge SSA_NAME_OCCURS_IN_ABNORMAL_PHI properly.
2894
2895 2010-03-16  Aldy Hernandez  <aldyh@redhat.com>
2896             Alexandre Oliva  <aoliva@redhat.com>
2897
2898         PR tree-optimization/42917
2899         * lambda-code.c (remove_iv): Skip debug statements.
2900         (lambda_loopnest_to_gcc_loopnest): Likewise.
2901         (not_interesting_stmt): Debug statements are not interesting.
2902
2903 2010-03-16  Jakub Jelinek  <jakub@redhat.com>
2904
2905         PR debug/43051
2906         PR debug/43092
2907         * cselib.c (cselib_preserve_constants,
2908         cfa_base_preserved_val): New static variables.
2909         (preserve_only_constants): New function.
2910         (cselib_reset_table): If cfa_base_preserved_val is non-NULL, don't
2911         clear its REG_VALUES.  If cselib_preserve_constants, don't
2912         empty the whole hash table, but preserve there VALUEs with constants,
2913         cfa_base_preserved_val and cfa_base_preserved_val plus constant.
2914         (cselib_preserve_cfa_base_value): New function.
2915         (cselib_invalidate_regno): Don't invalidate cfa_base_preserved_val.
2916         (cselib_init): Change argument to int bitfield.  Set
2917         cselib_preserve_constants to whether CSELIB_PRESERVE_CONSTANTS
2918         is in it.
2919         (cselib_finish): Clear cselib_preserve_constants and
2920         cfa_base_preserved_val.
2921         * cselib.h (enum cselib_record_what): New enum.
2922         (cselib_init): Change argument to int.
2923         (cselib_preserve_cfa_base_value): New prototype.
2924         * postreload.c (reload_cse_regs_1): Adjust cselib_init caller.
2925         * dse.c (dse_step1): Likewise.
2926         * cfgcleanup.c (thread_jump): Likewise.
2927         * sched-deps.c (sched_analyze): Likewise.
2928         * gcse.c (local_cprop_pass): Likewise.
2929         * simplify-rtx.c (simplify_replace_fn_rtx): Add argument to callback.
2930         If FN is non-NULL, call the callback always and whenever it returns
2931         non-NULL just return that.  Only do rtx_equal_p if FN is NULL.
2932         * rtl.h (simplify_replace_fn_rtx): Add argument to callback.
2933         * combine.c (propagate_for_debug_subst): Add old_rtx argument,
2934         compare from with old_rtx and if it isn't rtx_equal_p, return NULL.
2935         * Makefile.in (var-tracking.o): Depend on $(RECOG_H).
2936         * var-tracking.c: Include recog.h.
2937         (bb_stack_adjust_offset): Remove.
2938         (vt_stack_adjustments): Don't call it, instead just gather the
2939         adjustments using insn_stack_adjust_offset_pre_post on each bb insn.
2940         (adjust_stack_reference): Remove.
2941         (compute_cfa_pointer): New function.
2942         (hard_frame_pointer_adjustment, cfa_base_rtx): New static variables.
2943         (struct adjust_mem_data): New type.
2944         (adjust_mems, adjust_mem_uses, adjust_mem_stores, adjust_insn): New
2945         functions.
2946         (get_address_mode): New function.
2947         (replace_expr_with_values): Use it.
2948         (use_type): Don't do cselib_lookup for VAR_LOC_UNKNOWN_P.
2949         Use get_address_mode.  For cfa_base_rtx return MO_CLOBBER.
2950         (adjust_sets): Remove.
2951         (add_uses): Don't add extra MO_VAL_USE for cfa_base_rtx plus constant.
2952         Use get_address_mode.
2953         (get_adjusted_src): Remove.
2954         (add_stores): Don't call it.  Never reuse expr SET.  Don't add extra
2955         MO_VAL_USE for cfa_base_rtx plus constant.  Use get_address_mode.
2956         (add_with_sets): Don't call adjust_sets.
2957         (fp_setter, vt_init_cfa_base): New functions.
2958         (vt_initialize): Change return type to bool.  Move most of pool etc.
2959         initialization to the beginning of the function from end.  Pass
2960         CSELIB_RECORD_MEMORY | CSELIB_PRESERVE_CONSTANTS to cselib_init.
2961         If !frame_pointer_needed, call vt_stack_adjustment before mos
2962         vector is filled, call vt_init_cfa_base if argp/framep has been
2963         eliminated to sp.  If frame_pointer_needed and argp/framep has
2964         been eliminated to hard frame pointer, set
2965         hard_frame_pointer_adjustment and call vt_init_cfa_base after
2966         encountering fp setter in the prologue.  For MO_ADJUST, call
2967         log_op_type before pusing the op into mos vector, not afterwards.
2968         Call adjust_insn before cselib_process_insn/add_with_sets,
2969         call cancel_changes (0) afterwards.
2970         (variable_tracking_main_1): Adjust for vt_initialize calling
2971         vt_stack_adjustments and returning whether it succeeded or not.
2972
2973 2010-03-15  Aldy Hernandez  <aldyh@redhat.com>
2974
2975         * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_deps): Skip
2976         debug statements.
2977
2978 2010-03-15  Jakub Jelinek  <jakub@redhat.com>
2979
2980         * dwarf2out.c (dwarf2out_frame_debug): Don't assert drap_reg
2981         has been set.
2982         (based_loc_descr): Use DW_OP_fbreg for vdrap_reg even when
2983         drap_reg has not been set.
2984
2985 2010-03-15  Michael Matz  <matz@suse.de>
2986
2987         PR middle-end/43300
2988         * tree-outof-ssa.c (emit_partition_copy): New argument sizeexp,
2989         use it to expand block copies.
2990         (insert_partition_copy_on_edge, insert_rtx_to_part_on_edge,
2991         insert_part_to_rtx_on_edge): Adjust callers of emit_partition_copy.
2992         (insert_value_copy_on_edge): Use store_expr for BLKmode values.
2993
2994 2010-03-15  Richard Guenther  <rguenther@suse.de>
2995
2996         PR tree-optimization/43367
2997         * tree-cfg.c (gimple_can_merge_blocks_p): Simplify PHI
2998         elimination check.
2999
3000 2010-03-15  Richard Guenther  <rguenther@suse.de>
3001
3002         PR tree-optimization/43317
3003         * ipa-struct-reorg.c (create_new_general_access): Update stmt.
3004
3005 2010-03-15  Martin Jambor  <mjambor@suse.cz>
3006
3007         PR tree-optimization/43141
3008         * tree-sra.c (create_abstract_origin): New function.
3009         (modify_function): Call create_abstract_origin.
3010
3011 2010-03-15  Chris Demetriou  <cgd@google.com>
3012
3013         * Makefile.in (stmp-int-hdrs): Don't chmod include/stdint.h if it
3014         wasn't copied.
3015
3016 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3017
3018         PR middle-end/43354
3019         * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Do not
3020         call insert_out_of_ssa_copy for default definitions.
3021
3022 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3023
3024         * graphite-clast-to-gimple.c (my_long_long): Defined.
3025         (gcc_type_for_cloog_iv): Use it instead of long_long_integer_type_node.
3026         * graphite-sese-to-poly.c (my_long_long): Defined.
3027         (scop_ivs_can_be_represented): Use it.
3028
3029 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3030
3031         * doc/invoke.texi: Fix documentation of graphite-max-nb-scop-params,
3032         graphite-max-bbs-per-function, and loop-block-tile-size.
3033         * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Replace "maximal"
3034         with "maximum".
3035         (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Same.
3036
3037 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3038
3039         * graphite-clast-to-gimple.c (gcc_type_for_iv_of_clast_loop): Remove
3040         forward declaration.
3041         * graphite-sese-to-poly.c (reduction_phi_p): Remove FIXME comment.
3042         (add_upper_bounds_from_estimated_nit): New.
3043         (build_loop_iteration_domains): Use it.
3044
3045 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3046
3047         * doc/invoke.texi (PARAM_LOOP_BLOCK_TILE_SIZE): Document.
3048
3049 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3050
3051         PR middle-end/43306
3052         * tree-chrec.c (evolution_function_right_is_integer_cst): CHREC_RIGHT
3053         should be an INTEGER_CST.  Also handle CASE_CONVERT.
3054
3055 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3056
3057         * graphite.c (graphite_initialize): To bound the number of bbs per
3058         function, use PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION.
3059         * params.def (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Declared.
3060         * doc/invoke.texi: Document it.
3061
3062 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3063
3064         * graphite-sese-to-poly.c (build_poly_scop): Do not return bool.
3065         * graphite-sese-to-poly.h (build_poly_scop): Same.
3066
3067 2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>
3068
3069         * graphite-sese-to-poly.c (build_poly_scop): Limit scops following
3070         the number of parameters in the scop.  Use as an upper bound
3071         PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS.
3072         * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Declared.
3073         * doc/invoke.texi: Document it.
3074
3075 2010-03-13  Jerry Quinn  <jlquinn@optonline.net>
3076
3077         * Makefile.in (TEXI_GCCINT_FILES): Remove c-tree.texi.
3078         * doc/c-tree.texi: Remove.
3079         * doc/generic.texi: Merge c-tree.texi here.
3080         * doc/gccint.texi (Trees): Remove menu entry.
3081         (c-tree.texi): Remove @include.
3082         * doc/rtl.texi (Reading RTL): Update pxref from Trees to GENERIC.
3083         * doc/languages.texi (Reading RTL): Ditto.
3084
3085 2010-03-12  Steve Ellcey  <sje@cup.hp.com>
3086
3087         PR target/42869
3088         * config/ia64/sync.md (sync_compare_and_swap): Move memory fence.
3089
3090 2010-03-12  Michael Meissner  <meissner@linux.vnet.ibm.com>
3091
3092         PR middle-end/42431
3093         * gcc/config/rs6000/rs6000.c (rs6000_emit_move): Delete band-aid
3094         code added to work around reload clobbering CONST insns.
3095
3096 2010-03-12  Jakub Jelinek  <jakub@redhat.com>
3097
3098         * cselib.c (LONG_TERM_PRESERVED_VALUE_P): Remove.
3099         (cselib_preserve_definitely, cselib_clear_preserve): Remove.
3100         (cselib_preserve_only_values): Remove retain argument, don't
3101         traverse hash table with cselib_{preserve_definitely,clear_preserve}.
3102         * cselib.h (cselib_preserve_only_values): Remove retain argument.
3103         * var-tracking.c (micro_operation): Move insn field before union.
3104         Add DEF_VEC_O and DEF_VEC_ALLOC_O for this type.
3105         (struct variable_tracking_info_def): Remove n_mos field, change
3106         mos into a vector of micro_operations.
3107         (count_uses, count_uses_1, count_stores, count_with_sets): Remove.
3108         (bb_stack_adjust_offset, log_op_type, add_uses, add_stores,
3109         compute_bb_dataflow, emit_notes_in_bb): Adjust for VTI (bb)->mos
3110         changing into a vector.
3111         (add_with_sets): Likewise.  Ensure MO_VAL_USE uops from add_stores
3112         come before all other uops generated by add_stores.
3113         (vt_add_function_parameters): Adjust for cselib_preserve_only_values
3114         argument removal.
3115         (vt_initialize): Likewise.  Adjust for VTI (bb)->mos changing into
3116         a vector.  Run just one pass over the bbs instead of separate counting
3117         and computation phase.
3118         (vt_finalize): Free VTI (bb)->mos vector instead of array.
3119
3120         PR debug/43329
3121         * tree-inline.c (remap_decls): Put old_var rather than origin_var
3122         into *nonlocalized_list vector.
3123         * dwarf2out.c (gen_formal_parameter_die): Call decl_ultimate_origin
3124         even if origin is non-NULL.
3125         (gen_variable_die): Likewise.
3126         (process_scope_var): Don't change origin.
3127         (gen_decl_die): Likewise.
3128         * tree-cfgcleanup.c (remove_forwarder_block): Check single_pred_p
3129         before adding new edges instead of after it, fix moving over
3130         debug stmts.
3131
3132 2010-03-11  David S. Miller  <davem@davemloft.net>
3133
3134         * configure.ac (gcc_cv_as_cfi_advance_working): Skip a multiple
3135         of four.
3136         * configure: Rebuild.
3137
3138 2010-03-11  Martin Jambor  <mjambor@suse.cz>
3139
3140         PR tree-optimization/43257
3141         * tree.c (assign_assembler_name_if_neeeded): New function.
3142         (free_lang_data_in_cgraph): Assembler name assignment moved to the
3143         above new function.
3144         * tree.h (assign_assembler_name_if_neeeded): Declare.
3145         * cgraphunit.c (cgraph_analyze_function): Create an assembler name for
3146         the function if needed.
3147
3148 2010-03-11  Chris Demetriou  <cgd@google.com>
3149
3150         * Makefile.in (stmp-int-hdrs): Make include/unwind.h,
3151         include/stdint-gcc.h, and include/stdint.h world-readable.
3152
3153 2010-03-11  Richard Guenther  <rguenther@suse.de>
3154
3155         PR tree-optimization/43255
3156         * tree-vrp.c (process_assert_insertions_for): Do not insert
3157         asserts for trivial conditions.
3158
3159 2010-03-11  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3160
3161         PR tree-optimization/43280
3162         * tree-ssa-math-opts.c (find_bswap_1): Modify symbolic number
3163         generation.  Move calculation of size out of the if branch.
3164         (find_bswap): Modify compare number generation.
3165
3166 2010-03-11  Richard Guenther  <rguenther@suse.de>
3167
3168         PR lto/43200
3169         * lto-streamer-in.c (maybe_fixup_decls): Simplify.
3170         (input_gimple_stmt): Fixup handled component types during
3171         operand read.  Also fix up decls in ADDR_EXPRs.
3172
3173 2010-03-10  Eric Botcazou  <ebotcazou@adacore.com>
3174
3175         * config/sparc/sol2-bi.h (CC1_SPEC): Default to -mcpu=v9 for -m32.
3176         * config/sparc/t-sol2-64 (MULTILIB_DIRNAMES): Use sparcv8plus.
3177
3178 2010-03-10  Jan Hubicka  <jh@suse.cz>
3179
3180         PR c/43288
3181         * ipa.c (function_and_variable_visibility) Normalize COMMON bits.
3182         * varasm.c (get_variable_section): Don't do that here...
3183         (make_decl_rtl): ... and here.
3184         (do_assemble_alias): Produce decl RTL.
3185         (assemble_alias): Likewise.
3186
3187 2010-03-10  Jakub Jelinek  <jakub@redhat.com>
3188
3189         PR debug/43290
3190         * reg-notes.def (REG_CFA_SET_VDRAP): New note.
3191         * dwarf2out.c (dwarf2out_frame_debug_expr): Remove rule 20 - setting
3192         of fde->vdrap_reg.
3193         (dwarf2out_frame_debug): Handle REG_CFA_SET_VDRAP note.
3194         (based_loc_descr): Only express drap or vdrap regno based expressions
3195         using DW_OP_fbreg when not optimizing.
3196         * config/i386/i386.c (ix86_get_drap_rtx): When not optimizing,
3197         make the vDRAP = DRAP assignment RTX_FRAME_RELATED_P and add
3198         REG_CFA_SET_VDRAP note.
3199
3200 2010-03-10  Alexander Monakov  <amonakov@ispras.ru>
3201
3202         PR tree-optimization/43236
3203         * tree-loop-distribution.c (generate_memset_zero): Fix off-by-one
3204         error in calculation of base address in reverse iteration case.
3205         (generate_builtin): Take number of latch executions if the statement
3206         is in the latch.
3207
3208 2010-03-10  Andrey Belevantsev  <abel@ispras.ru>
3209
3210         PR middle-end/42859
3211         * tree-eh.c: Include pointer-set.h.
3212         (lower_eh_dispatch): Filter out duplicate case labels and
3213         remove the unneeded edge when the label is unused.  Return
3214         true when some edges are removed.
3215         (execute_lower_eh_dispatch): When any lowering resulted in
3216         removing an edge, also delete unreachable blocks.
3217
3218 2010-03-10  Jakub Jelinek  <jakub@redhat.com>
3219
3220         PR bootstrap/43287
3221         * config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
3222         UNSPEC_MACHOPIC_OFFSET.
3223
3224 2010-03-09  Andreas Schwab  <schwab@linux-m68k.org>
3225
3226         PR target/43294
3227         * config/m68k/m68k.c (TARGET_DELEGITIMIZE_ADDRESS): Define.
3228         (m68k_delegitimize_address): New function.
3229
3230 2010-03-09  Jakub Jelinek  <jakub@redhat.com>
3231
3232         PR debug/43299
3233         * dwarf2out.c (const_ok_for_output_1): Return 1 for UNSPECs.
3234
3235         PR debug/43299
3236         * var-tracking.c (adjust_sets): New function.
3237         (count_with_sets, add_with_sets): Use it.
3238         (get_adjusted_src): New inline function.
3239         (add_stores): Use it.
3240
3241         PR debug/43304
3242         * var-tracking.c (vt_expand_loc_callback) <case SUBREG>: If dummy,
3243         call cselib_dummy_expand_value_rtx_cb instead of
3244         cselib_expand_value_rtx_cb.
3245
3246         PR debug/43293
3247         * config/i386/t-i386 (i386.o): Depend on debug.h and dwarf2out.h.
3248         * config/i386/i386.c: Include debug.h and dwarf2out.h.
3249         (ix86_file_end): If dwarf2out_do_cfi_asm (), emit .cfi_startproc
3250         and .cfi_endproc around the pic thunks.
3251         (output_set_got): For TARGET_DEEP_BRANCH_PREDICTION pic, ensure
3252         all queued unwind info register saves are saved before the call.
3253         For !TARGET_DEEP_BRANCH_PREDICTION pic, ensure the call is
3254         considered as sp-=4 for unwind info and the pop as sp+=4 which
3255         also clobbers dest, but doesn't actually restore it.
3256
3257         PR debug/43290
3258         * config/i386/i386.c (ix86_get_drap_rtx): Don't set
3259         RTX_FRAME_RELATED_P.
3260
3261 2010-03-09  Jie Zhang  <jie@codesourcery.com>
3262
3263         * config/arm/arm.md (thumb_mulsi3_v6): Remove trailing
3264         whitespaces in output template.
3265
3266 2010-03-09  Jie Zhang  <jie@codesourcery.com>
3267
3268         * ira-lives.c (check_and_make_def_use_conflict): Don't fall
3269         out array boundary.
3270
3271 2010-03-08  Jakub Jelinek  <jakub@redhat.com>
3272
3273         * Makefile.in (check_gcc_parallelize): Run dg-torture.exp and
3274         builtins.exp in a separate job.
3275
3276 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3277
3278         * graphite-sese-to-poly.c (add_param_constraints): Use
3279         lower_bound_in_type and upper_bound_in_type.
3280
3281 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3282
3283         * graphite-sese-to-poly.c (add_param_constraints): Use sizetype
3284         instead of unsigned_type_node.
3285
3286 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3287             Reza Yazdani  <reza.yazdani@amd.com>
3288
3289         PR middle-end/43065
3290         * graphite-sese-to-poly.c (add_param_constraints): Insert bounds
3291         on pointer type parameters.
3292
3293 2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>
3294
3295         PR middle-end/42644
3296         PR middle-end/42130
3297         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Also
3298         handle conversions from pointer to integers.
3299         (gcc_type_for_cloog_iv): Choose the smalles signed integer as an
3300         induction variable, to be able to work with code generated by CLooG.
3301         * graphite-sese-to-poly.c (scop_ivs_can_be_represented): New.
3302         (build_poly_scop): Bail out if we cannot codegen a loop.
3303
3304 2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>
3305
3306         * graphite-clast-to-gimple.c (translate_clast): Do not short-cut
3307         code generation with gloog_error.
3308
3309 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3310
3311         * sese.c (expand_scalar_variables_ssa_name): Add new argument for type.
3312         Call fold_convert on all the returned values.
3313         (expand_scalar_variables_expr): Pass to
3314         expand_scalar_variables_ssa_name the type of the resulting expression.
3315
3316 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3317
3318         * graphite-ppl.c (ppl_min_for_le_polyhedron): Renamed
3319         ppl_min_for_le_pointset.
3320         Use ppl_Pointset_Powerset_C_Polyhedron_minimize.
3321         * graphite-ppl.h (ppl_min_for_le_polyhedron): Update declaration.
3322
3323 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3324
3325         * graphite-dependences.c (map_into_dep_poly): Removed.
3326         (dependence_polyhedron_1): Use combine_context_id_scat.
3327
3328 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3329
3330         * graphite-poly.h (struct poly_scattering): Add layout documentation.
3331         (struct poly_bb): Same.
3332         (combine_context_id_scat): New.
3333
3334 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3335
3336         PR middle-end/42326
3337         * sese.c (name_defined_in_loop_p): Return false for default
3338         definitions.
3339
3340 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3341
3342         * graphite-clast-to-gimple.c (find_cloog_iv_in_expr): Simplify
3343         and clean up the logic.
3344
3345 2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
3346
3347         * graphite-sese-to-poly.c (add_param_constraints): Enabled: remove
3348         early return.
3349
3350 2010-03-08  Jakub Jelinek  <jakub@redhat.com>
3351
3352         * var-tracking.c (remove_cselib_value_chains): Define only for
3353         ENABLE_CHECKING.
3354         (dataflow_set_preserve_mem_locs, dataflow_set_remove_mem_locs,
3355         delete_slot_part, emit_notes_for_differences_1): Don't call
3356         remove_cselib_value_chains here.
3357         (set_slot_part, emit_notes_for_differences_2): Don't call
3358         add_cselib_value_chains here.
3359         (preserved_values): New vector.
3360         (preserve_value): New function.
3361         (add_uses, add_stores, vt_add_function_parameters): Use it
3362         instead of cselib_preserve_value.
3363         (changed_values_stack): New vector.
3364         (check_changed_vars_0): New function.
3365         (check_changed_vars_1, check_changed_vars_2): Use it.
3366         (emit_notes_for_changes): Call set_dv_changed (*, false) on all
3367         changed_values_stack VALUEs.
3368         (vt_emit_notes): For all preserved_values call
3369         add_cselib_value_chains.  If ENABLE_CHECKING call
3370         remove_cselib_value_chains before verifying value_chains is empty.
3371         Initialize and free changed_values_stack.
3372         (vt_initialize): Initialize preserved_values.
3373         (vt_finalize): Free preserved_values.
3374
3375 2010-03-08  Richard Guenther  <rguenther@suse.de>
3376
3377         PR tree-optimization/43269
3378         * tree-ssa-dse.c (dse_possible_dead_store_p): Fix post-dom
3379         region detection.
3380
3381 2010-03-08  Martin Jambor  <mjambor@suse.cz>
3382
3383         * ipa-prop.h (struct ipa_param_descriptor): Removed the called field.
3384         (ipa_is_param_called): Removed.
3385         * ipa-prop.c (ipa_note_param_call): Do not set the called flag.
3386         (ipa_print_node_params): Do not print the called flag.
3387         (ipa_write_node_info): Do not stream the called flag.
3388         (ipa_read_node_info): Likewise.
3389
3390 2010-03-07  Jakub Jelinek  <jakub@redhat.com>
3391
3392         PR debug/43176
3393         * Makefile.in (var-tracking.o): Depend on pointer-set.h.
3394         * cselib.c (struct expand_value_data): Add dummy field.
3395         (cselib_expand_value_rtx, cselib_expand_value_rtx_cb): Initialize
3396         dummy to false.
3397         (cselib_dummy_expand_value_rtx_cb): New function.
3398         (cselib_expand_value_rtx_1): If evd->dummy is true, don't allocate
3399         any rtl.
3400         * cselib.h (cselib_dummy_expand_value_rtx_cb): New prototype.
3401         * var-tracking.c: Include pointer-set.h.
3402         (variable): Change n_var_parts to char from int.  Add
3403         cur_loc_changed and in_changed_variables fields.
3404         (variable_canonicalize): Remove.
3405         (shared_var_p): New inline function.
3406         (unshare_variable): Maintain cur_loc_changed and
3407         in_changed_variables fields.  If var was in changed_variables,
3408         replace it there with new_var.  Just copy cur_loc instead of
3409         resetting it to something else.
3410         (variable_union): Don't recompute cur_loc.  Use shared_var_p.
3411         (dataflow_set_union): Don't call variable_canonicalize.
3412         (loc_cmp): If both x and y are DEBUG_EXPRs, compare uids
3413         of their DEBUG_EXPR_TREE_DECLs.
3414         (canonicalize_loc_order_check): Verify that cur_loc is NULL
3415         and in_changed_variables and cur_loc_changed is false.
3416         (variable_merge_over_cur): Clear cur_loc, in_changed_variables
3417         and cur_loc_changed.  Don't update cur_loc here.
3418         (variable_merge_over_src): Don't call variable_canonicalize.
3419         (dataflow_set_preserve_mem_locs): Use shared_var_p.  When
3420         removing loc that is equal to cur_loc, clear cur_loc,
3421         set cur_loc_changed and ensure variable_was_changed is called.
3422         (dataflow_set_remove_mem_locs): Use shared_var_p.  Only
3423         compare pointers in cur_loc check, if it is equal to loc,
3424         clear cur_loc and set cur_loc_changed.  Don't recompute cur_loc here.
3425         (variable_different_p): Remove compare_current_location argument,
3426         don't compare cur_loc.
3427         (dataflow_set_different_1): Adjust variable_different_p caller.
3428         (variable_was_changed): If dv had some var in changed_variables
3429         already, reset in_changed_variables flag for it and propagate
3430         cur_loc_changed over to the new variable.  On empty var
3431         always set cur_loc_changed.  Set in_changed_variables on whatever
3432         var is added to changed_variables.
3433         (set_slot_part): Clear cur_loc_changed and in_changed_variables.
3434         Use shared_var_p.  When removing loc that is equal to cur_loc,
3435         clear cur_loc and set cur_loc_changed.  If cur_loc is NULL at the
3436         end, don't set it to something else, just call variable_was_changed.
3437         (delete_slot_part): Use shared_var_p.  When cur_loc equals to
3438         loc being removed, clear cur_loc and set cur_loc_changed.
3439         Set cur_loc_changed if all locations have been removed.
3440         (struct expand_loc_callback_data): New type.
3441         (vt_expand_loc_callback): Add dummy mode in which no rtxes are
3442         allocated.  Always create SUBREGs if simplify_subreg failed.
3443         Prefer to use cur_loc, when that fails and still in