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