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2012-02-20 Richard Guenther <rguenther@suse.de>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-02-20  Richard Guenther  <rguenther@suse.de>
2
3         PR tree-optimization/52298
4         * tree-vect-stmts.c (vectorizable_store): Properly use
5         STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
6         outer loops.
7         (vectorizable_load): Likewise.
8         * tree-vect-data-refs.c (vect_analyze_data_ref_access):
9         Access DR_STEP after ensuring it is not NULL.
10
11 2012-02-20  Jakub Jelinek  <jakub@redhat.com>
12
13         PR tree-optimization/52286
14         * fold-const.c (fold_binary_loc): For (X & C1) | C2
15         optimization use double_int_to_tree instead of build_int_cst_wide,
16         rewrite to use double_int vars.
17
18 2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
19
20         PR target/50166
21         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
22         Define _start.
23         Remove -e 0 from $gcc_cv_ld invocation.
24         Only use __GLIBC_PREREQ if defined.
25         Enable on Solaris since Solaris 8 patch.
26         (gcc_SUN_LD_VERSION): New macro.
27         * configure.ac (ld_ver) <*-*-solaris2*>: Refer to
28         gcc_SUN_LD_VERSION for version number format.
29         * configure: Regenerate.
30         * varasm.c (get_elf_initfini_array_priority_section): Set
31         SECTION_NOTYPE for non-default priority.
32         Use get_section instead of get_unnamed_section to emit
33         .init_array/.fini_array with default priority.
34
35 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
36
37         * config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
38         (mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
39         (mips_start_unique_function, mips_output_mips16_rdhwr)
40         (mips_code_end): New functions.
41         (TARGET_ASM_CODE_END): Define.
42
43 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
44
45         * config/mips/mips.c (mips16_build_call_stub): Add CFI information
46         to stubs with non-sibling calls.
47
48 2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>
49
50         * doc/invoke.texi (-fira-* options): Copy-edit.
51         (ira-* parameters): Copy-edit.
52
53 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
54
55         * doc/invoke.texi: Minor copy-edits to bring into conformance with
56         GCC coding conventions.
57
58 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
59
60         * doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
61         when used as adjectives.
62
63 2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>
64
65         * doc/invoke.texi: Clean up "that"/"which" confusion.
66
67 2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>
68
69         * system.h: Poison SMALL_REGISTER_CLASSES
70         * config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
71         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.
72
73 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
74
75         PR tree-optimization/52285
76         * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
77         when deciding if a call is a tail call or tail recursion.
78
79 2012-02-16  Kai Tietz  <ktietz@redhat.com>
80
81         * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
82         interger-constant displacement for UNSPEC_PCREL.
83
84 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
85
86         PR rtl-optimization/52208
87         * ira-costs.c (scan_one_insn): Don't decrease mem_cost
88         for MEMs with REG_EQUIV, if the MEM isn't general_operand.
89
90         PR tree-optimization/52255
91         * tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
92         loop->header has virtual PHI, but exit_e->dest doesn't, add
93         virtual PHI to exit_e->dest and adjust all uses after the loop.
94
95         PR debug/52260
96         * dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
97         children with clone_tree_hash, not after it.
98
99 2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>
100
101         * config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
102         extended identifiers.
103
104 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
105
106         PR middle-end/51929
107         * cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
108         a same_body_alias, also test whether e->callee isn't a former
109         or current clone of the decl this is a same body alias of.
110
111         PR translation/52264
112         * cgraphunit.c (verify_cgraph_node): Fix a typo.
113
114 2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>
115
116         * doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.
117
118 2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>
119
120         PR target/52199
121         * config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
122         force_reg instead of copy_to_reg for better optimization.  Force
123         non-register or memory operands into a register.
124
125 2012-02-15  Andrew MacLeod  <amacleod@redhat.com>
126
127         * extend.texi: Reserve upper bits of memory model for future use.
128
129 2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
130             Anatoly Sokolov <aesok@post.ru>
131             Eric Weddington <eric.weddington@atmel.com>
132
133         PR target/52261
134         * config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
135         avrxmega4, avrxmega5, avrxmega6, avrxmega7.
136         Rewrite initializers for .macro.
137         * config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
138         avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
139         atxmega32d4, atxmega32x1.
140         avrxmega4: atxmega64a3, atxmega64d3.
141         avrxmega5: atxmega64a1, atxmega64a1u.
142         avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
143         atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
144         avrxmega7: atxmega128a1, atxmega128a1u.
145         * config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
146         ARCH_AVRXMEGA4, ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
147         (struct base_arch_s): Rename reserved to xmega_p.
148         Rename reserved2 to have_rampd.
149         (AVR_XMEGA): New define.
150         (AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
151         (AVR_HAVE_RAMPZ): Change definition to fit xmega.
152         * config/avr/predicates.md (io_address_operand): Take into
153         account SFR offset.
154         (low_io_address_operand): Ditto.
155         (high_io_address_operand): Ditto.
156         * config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
157         (enabled, movhi_sp_r): Use them.
158         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
159         cpp_define_formatted to built-in define __AVR_ARCH__.
160         (__AVR_XMEGA__): New built-in define.
161         (__AVR_HAVE_RAMPD__): New built-in define.
162         (__AVR_HAVE_RAMPX__): New built-in define.
163         (__AVR_HAVE_RAMPY__): New built-in define.
164         (__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.
165
166         * config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
167         (avr_option_override): Initialize them.
168         (sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
169         (avr_init_expanders): Initialize them. No more block several calls.
170         (emit_push_sfr): New static function.
171         (avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
172         Handle AVR_XMEGA.
173         (expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
174         (avr_print_operand): Print addreeses as symbols for
175         RAMPX, RAMPY, RAMPD, CCP.
176         (output_movhi): Handle AVR_XMEGA when writing to SP.
177         (avr_out_movhi_mr_r_xmega): New static function.
178         (out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
179         (avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
180         __RAMPD__,  __CCP__ as needed.
181
182         * config/avr/multilib.h: Regenerate.
183         * config/avr/t-multilib: Regenerate.
184         * config/avr/avr-tables.opt: Regenerate.
185
186 2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>
187
188         PR tree-optimization/50561
189         * graphite-flattening.c (lst_project_loop): Do not
190         remove old scattering dimensions after flattening.
191         (lst_do_flatten): Likewise.
192
193 2012-02-15  Georg-Johann Lay  <avr@gjlay.de>
194
195         * doc/extend.texi (AVR Built-in Functions): Remove doc for
196         __builtin_avr_map8, __builtin_avr_map16.
197         Document __builtin_avr_insert_bits.
198
199         * config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
200         (insert_bits): New insn.
201         (adjust_len.map_bits): Rename to insert_bits.
202         (UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
203         * avr-protos.h (avr_out_map_bits): Remove.
204         (avr_out_insert_bits, avr_has_nibble_0xf): New.
205         * config/avr/constraints.md (Cxf,C0f): New.
206         * config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
207         defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
208         New built-in define __BUILTIN_AVR_INSERT_BITS.
209         * config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
210         (enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
211         (avr_move_bits): Rewrite.
212         (avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
213         functions.
214         (avr_map_op_t): New typedef.
215         (avr_map_op): New static variable.
216         (avr_out_insert_bits, avr_has_nibble_0xf): New functions.
217         (adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
218         (avr_init_builtins): Add definition for __builtin_avr_insert_bits.
219         (bdesc_3arg, avr_expand_triop_builtin): New.
220         (avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
221         (avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
222         (avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
223         (avr_map_equal_p, avr_map_sig_p): Remove.
224         (avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
225         (bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
226         (adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
227         (enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
228         (avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
229         (avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
230
231 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
232
233         * config/c6x/c6x.md (reserve_cycles): New attribute.
234         * config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
235         don't reserve functional units after the branch occurs.
236
237 2012-02-14  Aldy Hernandez  <aldyh@redhat.com>
238
239         PR middle-end/52142
240         * ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
241         functions into non-tm_pure functions.
242
243 2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>
244
245         PR lto/52178
246         * gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
247         (iterative_hash_canonical_type): Likewise.
248         * tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
249         the dead edges.
250
251 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
252
253         * haifa-sched.c (prune_ready_list): Ensure that if there is a
254         sched-group insn, it either remains alone or the entire list is
255         pruned.
256
257 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
258
259         * doc/install.texi (Prerequisites): Fix grammar.
260         (Configuration): Likewise.
261
262 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
263
264         * doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
265         MPC as part of GCC before describing configuring with --with-gmp etc.
266         (Installing GCC: Configuration): --with-gmp etc. aren't needed if
267         sources are present.
268
269 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
270
271         PR debug/51950
272         * dwarf2out.c (clone_tree_hash): New function.
273         (copy_decls_walk): Use it instead of clone_tree.
274
275 2012-02-14  Richard Guenther  <rguenther@suse.de>
276
277         PR tree-optimization/52244
278         PR tree-optimization/51528
279         * tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
280         replacements for integral types.
281
282 2012-02-14  Walter Lee  <walt@tilera.com>
283
284         * config.gcc: Handle tilegx and tilepro.
285         * configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
286         tilegx and tilepro.
287         Add HAVE_AS_TLS check for tilegx and tilepro.
288         * configure: Regenerate.
289         * doc/contrib.texi: Add Mat Hostetter and self.
290         * doc/extend.texi (TILE-Gx Built-in Functions): New node.
291         Document instruction intrinsics and network accessing intrinsics.
292         (TILEPro Built-in Functions): New node.  Document instruction
293         intrinsics and network accessing intrinsics.
294         * doc/install.texi (Specific, tilegx-*-linux*): Document it.
295         (Specific, tilepro-*-linux*): Likewise.
296         * doc/invoke.texi (TILE-Gx Options): New section.
297         (TILEPro Options): New section.
298         * doc/md.texi (TILE-Gx): New section.
299         (TILEPro): New section.
300         * common/config/tilegx/tilegx-common.c: New file.
301         * common/config/tilepro/tilepro-common.c: New file.
302         * config/tilegx/constraints.md: New file.
303         * config/tilegx/linux.h: New file.
304         * config/tilegx/mul-tables.c: New file.
305         * config/tilegx/predicates.md: New file.
306         * config/tilegx/sync.md: New file.
307         * config/tilegx/t-tilegx: New file.
308         * config/tilegx/tilegx-builtins.h: New file.
309         * config/tilegx/tilegx-c.c: New file.
310         * config/tilegx/tilegx-generic.md: New file.
311         * config/tilegx/tilegx-modes.def: New file.
312         * config/tilegx/tilegx-multiply.h: New file.
313         * config/tilegx/tilegx-protos.h: New file.
314         * config/tilegx/tilegx.c: New file.
315         * config/tilegx/tilegx.h: New file.
316         * config/tilegx/tilegx.md: New file.
317         * config/tilegx/tilegx.opt: New file.
318         * config/tilepro/constraints.md: New file.
319         * config/tilepro/gen-mul-tables.cc: New file.
320         * config/tilepro/linux.h: New file.
321         * config/tilepro/mul-tables.c: New file.
322         * config/tilepro/predicates.md: New file.
323         * config/tilepro/t-tilepro: New file.
324         * config/tilepro/tilepro-builtins.h: New file.
325         * config/tilepro/tilepro-c.c: New file.
326         * config/tilepro/tilepro-generic.md: New file.
327         * config/tilepro/tilepro-modes.def: New file.
328         * config/tilepro/tilepro-multiply.h: New file.
329         * config/tilepro/tilepro-protos.h: New file.
330         * config/tilepro/tilepro.c: New file.
331         * config/tilepro/tilepro.h: New file.
332         * config/tilepro/tilepro.md: New file.
333         * config/tilepro/tilepro.opt: New file.
334
335 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
336
337         PR tree-optimization/52210
338         * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
339         vect_model_simple_cost with two entry vect_def_type array instead
340         of an address of dt.
341
342 2012-02-14  Richard Guenther  <rguenther@suse.de>
343
344         PR lto/52178
345         * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
346         Do not stream DECL_QUALIFIER.
347         * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
348         * tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
349         (find_decls_types_r): Do not walk DECL_QUALIFIER.
350
351 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
352
353         PR c/52181
354         * c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
355         newdecl.
356
357 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
358
359         PR bootstrap/52172
360         * cselib.h (cselib_subst_to_values_from_insn): New prototype.
361         * cselib.c (cselib_subst_to_values_from_insn): New function.
362         * sched-deps.c (add_insn_mem_dependence,
363         sched_analyze_1, sched_analyze_2): Use it.
364
365 2012-02-13  Jan Hubicka  <jh@suse.cz>
366
367         PR middle-end/52214
368         * predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.
369
370 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
371
372         * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
373         (GTM_SELF_SPECS): Define if not already defined.
374         (driver_self_specs): Add GTM_SELF_SPECS.
375         * config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
376         (GTM_SELF_SPECS): Define.
377         * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
378         * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.
379
380 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
381
382         * cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
383         away if seen.
384
385         * cselib.c (dump_cselib_val): Don't assume l->setting_insn is
386         non-NULL.
387
388         PR middle-end/52230
389         * omp-low.c (expand_omp_for): If a static schedule without
390         chunk size has NULL region->cont, force fd.chunk_size to be
391         integer_zero_node.
392
393 2012-02-13  Andrew MacLeod  <amacleod@redhat.com>
394
395         PR c/52190
396         * doc/extend.texi : Fix another __atomic_compare_exchange typo.
397
398 2012-02-13  Richard Guenther  <rguenther@suse.de>
399
400         PR translation/52211
401         * passes.c (enable_disable_pass): Fix typo.
402
403 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
404
405         PR middle-end/52209
406         * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
407         XOR for reduce_bit_field if type is unsigned.
408
409 2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>
410
411         * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
412         disallow changes from SFmode to mode with different size in FP regs.
413
414 2012-02-12  Robert Millan  <rmh@gnu.org>
415             Gerald Pfeifer <gerald@pfeifer.com>
416
417         * ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
418         Tweak comment.
419
420 2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>
421
422         PR rtl-optimization/52175
423         * reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
424         to frame-related instructions.
425
426 2012-02-10  Jason Merrill  <jason@redhat.com>
427
428         PR c++/51910
429         * tlink.c (demangled_hash_entry): Change mangled to a VEC.
430         (demangle_new_symbols): Fill it.
431         (scan_linker_output): Walk it.
432         (start_tweaking): Split out from scan_linker_output.
433         (maybe_tweak): Update sym->chosen.
434         * Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o
435
436 2012-02-11  Jakub Jelinek  <jakub@redhat.com>
437
438         PR debug/52132
439         * reg-stack.c (subst_stack_regs_in_debug_insn): Don't use
440         get_true_reg.
441
442 2012-02-11  Uros Bizjak  <ubizjak@gmail.com>
443
444         * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
445         having the same mode as previous compare.
446
447 2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>
448
449         * config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
450         * config/sparc/sparc.md (UNSPECV_GOTO): Delete.
451         (nonlocal_goto_internal): Likewise.
452         (nonlocal_goto): Emit a use and an indirect jump directly.
453
454 2012-02-10  Andrew MacLeod  <amacleod@redhat.com>
455
456         PR c/52190
457         * doc/extend.texi : Update comments for __atomic_compare_exchange and
458         __atomic_{is,always}_lock_free.
459
460 2012-02-10  Uros Bizjak  <ubizjak@gmail.com>
461
462         PR target/52146
463         * config/i386/i386.c (ix86_legitimate_address_p): Disallow
464         negative constant address for x32.
465
466 2012-02-10  Richard Henderson  <rth@redhat.com>
467
468         * tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
469         * tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
470         for GIMPLE_TRANSACTION.  Tidy if's into a switch.
471
472 2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
473             Ira Rosen  <irar@il.ibm.com>
474
475         PR tree-optimization/50031
476         * targhooks.c (default_builtin_vectorization_cost): Handle
477         vec_promote_demote.
478         * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
479         * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
480         all types of reduction and pattern statements.
481         (vect_estimate_min_profitable_iters): Likewise.
482         * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
483         (vect_get_load_cost): Use vec_perm for permutations; add dump logic
484         for explicit realigns.
485         (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
486         * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
487         vec_promote_demote.
488         * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
489         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
490         vec_perm for VSX and handle vec_promote_demote.
491
492 2012-02-10  Jakub Jelinek  <jakub@redhat.com>
493
494         PR middle-end/52177
495         * builtins.c (fold_builtin_atomic_always_lock_free,
496         expand_builtin_atomic_always_lock_free,
497         fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
498         Return and/or test boolean_true_node/boolean_false_node instead of
499         integer_one_node/integer_zero_node.
500
501 2012-02-10  Jan Hubicka  <jh@suse.cz>
502
503         PR middle-end/48600
504         * predict.c (predict_paths_for_bb): Prevent looping.
505         (predict_paths_leading_to_edge, predict_paths_leading_to): Update.
506
507 2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>
508
509         * config/arm/arm.c (output_move_double): In one case properly
510         count number of instructions that will be emitted.
511
512 2012-02-10  Richard Guenther  <rguenther@suse.de>
513
514         PR translation/52193
515         * cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.
516
517 2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>
518
519         PR middle-end/52140
520         * dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.
521
522 2012-02-09  Jakub Jelinek  <jakub@redhat.com>
523
524         PR debug/52165
525         * var-tracking.c (emit_note_insn_var_location): If
526         EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
527         emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
528         non-NOTE_DURING_CALL_P insn.
529
530 2012-02-09  Bin Cheng  <bin.cheng@arm.com>
531
532         PR middle-end/51867
533         * builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.
534
535 2012-02-08  Magnus Granberg  <zorry@gentoo.org>
536
537         PR driver/48524
538         * gcc.c (switch_matches) Support switches with separated form,
539         -D and -U.
540
541 2012-02-08  Georg-Johann Lay  <avr@gjlay.de>
542
543         * config/avr/avr.md (SREG_ADDR): Remove constant definition.
544         (SP_ADDR): Ditto.
545         (RAMPZ_ADDR): Ditto.
546         * config/avr/avr.c (avr_addr_t): New typedef.
547         (avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
548         (avr_init_expanders): Initialize it.
549         (expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
550         SREG_ADDR.
551         (expand_epilogue): Ditto.
552         (avr_print_operand): Ditto.
553         (avr_file_start): Ditto.
554         (avr_emit_movmemhi): Ditto.
555
556 2012-02-08  Richard Guenther  <rguenther@suse.de>
557
558         PR tree-optimization/46886
559         * tree-flow.h (do_while_loop_p): Declare.
560         * tree-ssa-loop-ch.c (do_while_loop_p): Export.
561         * tree-parloops.c (parallelize_loops): Only parallelize do-while loops.
562
563 2012-02-08  Andrew MacLeod  <amacleod@redhat.com>
564
565         * optabs.c (expand_atomic_load): Do not assume compare_and_swap will
566         always succeed for integers larger than a native word.
567
568 2012-02-08  Richard Guenther  <rguenther@suse.de>
569
570         PR rtl-optimization/52170
571         * simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
572         properly handle integer vector modes.
573
574 2012-02-08  Jakub Jelinek  <jakub@redhat.com>
575
576         PR gcov-profile/52150
577         * coverage.c: Include target.h.
578         (build_var): Call targetm.strip_name_encoding on the assembler name.
579         Change one _ into . or $ if the target allows it.
580         * Makefile.in (coverage.o): Depend on $(TARGET_H).
581
582         PR rtl-optimization/52139
583         * cfgrtl.c (cfg_layout_merge_blocks): If BB_END
584         is a BARRIER after emit_insn_after_noloc, move BB_END
585         to the last non-BARRIER insn before it.
586
587 2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>
588
589         PR middle-end/24306
590         * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
591         (mips_gimplify_va_arg_expr): Call it instead of
592         std_gimplify_va_arg_expr.
593
594 2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
595
596         * config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
597         message for -mno-pointers-to-nested-function.
598
599 2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>
600
601         PR middle-end/51994
602         * expr.c (get_inner_reference): If there is an offset, add a negative
603         bit position to it (if any).
604
605 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
606
607         PR rtl-optimization/52060
608         * combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
609         copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
610         before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
611         and/or i0src_copy2 when needed.
612
613 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
614
615         * gcc.c (main): Don't look for lto-wrapper or lto-wrapper
616         or LTOPLUGINSONAME if have_c.
617
618         * config/freebsd-spec.h: Add comment about what macros can be defined
619         in this header.
620         (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
621         * config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
622         here instead.
623
624 2012-02-07  Richard Guenther  <rguenther@suse.de>
625
626         * gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
627         newline in -alias dumps.
628
629 2012-02-07  Kai Tietz  <ktietz@redhat.com>
630             Dave Korn  <dave.korn.cygwin@gmail.com>
631
632         PR target/40068
633         * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
634         Take care that typinfo gets dllexport-attribute.
635
636 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
637
638         PR middle-end/52074
639         * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
640         if modifier < EXPAND_SUM call force_operand on the result.
641
642 2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>
643
644         * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
645         adding __forwarder_dst__ prefix if a forwarder_section attribute is
646         present.
647         (epiphany_function_type): Replace types for specific interrupts with
648         EPIPHANY_FUNCTION_INTERRUPT.
649         (EPIPHANY_INTERRUPT_P): Update.
650         * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
651         New static function.
652         (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
653         <disinterrupt>: Affects type identity.
654         (epiphany_handle_interrupt_attribute): Handle variable number of
655         arguments.
656         (epiphany_compute_function_type): Update for new
657         epiphany_function_type definition.
658         (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
659         handlers with a longcall forwarder.
660         (epiphany_start_function): Handle multiple interrupt arguments and/or
661         forwarder_section attribute.
662
663         * config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
664         libgloss.
665
666 2012-02-07  Alan Modra  <amodra@gmail.com>
667
668         PR target/52107
669         * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
670         subregs of TFmode.
671
672 2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
673
674         PR tree-optimization/50969
675         * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
676         use vec_perm rather than vector_stmt.
677         (vect_model_load_cost): Likewise.
678         * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
679         vec_perm to be the same as other vector statements.
680         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
681         cost of vec_perm for TARGET_VSX.
682
683 2012-02-06  Richard Guenther  <rguenther@suse.de>
684
685         PR tree-optimization/52115
686         * tree-sra.c (access_has_replacements_p): New function.
687         (sra_modify_assign): Use it to decide whether a use is uninitialized.
688
689 2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>
690
691         PR middle-end/52047
692         * trans-mem.c (expand_call_tm): Add an assertion.
693         * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
694         functions.
695
696 2012-02-06  Richard Guenther  <rguenther@suse.de>
697
698         PR tree-optimization/50955
699         * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
700         raise cost of expressions that replace an address with an
701         expression based on a different pointer.
702
703 2012-02-06  Jakub Jelinek  <jakub@redhat.com>
704
705         PR target/52129
706         * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
707         CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.
708
709 2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>
710
711         PR c++/48680
712         * doc/invoke.texi (C++ Dialect Options): Use @option markup for
713         -Weffc++ and specify guidelines come from second edition.
714
715 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
716
717         * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
718         (sibcall_value_multiple_internal, call_split, call_internal_direct)
719         (call_direct_split, call_value_split, call_value_internal_direct)
720         (call_value_direct_split, call_value_multiple_split): Use jal and
721         jal_macro attributes.
722
723 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
724
725         * reload1.c (reload_regs_reach_end_p): Replace with...
726         (reload_reg_rtx_reaches_end_p): ...this function.
727         (new_spill_reg_store): Update commentary.
728         (emit_input_reload_insns): Don't clear new_spill_reg_store here.
729         (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
730         before setting new_spill_reg_store.
731         (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
732         Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
733         Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
734         for non-spill reload registers.
735
736 2012-02-05  Ira Rosen  <irar@il.ibm.com>
737
738         PR tree-optimization/52091
739         * tree-vectorizer.h (vect_is_simple_use): Add an argument.
740         (vect_is_simple_use_1): Likewise.
741         * tree-vect-loop.c (vectorizable_reduction): Update calls
742         to vect_is_simple_use_1 and vect_is_simple_use.
743         (vectorizable_live_operation): Likewise.
744         * tree-vect-patterns.c (widened_name_p,
745         vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
746         * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
747         vectorizable_call, vectorizable_conversion, vectorizable_assignment,
748         vectorizable_shift,vectorizable_operation, vectorizable_store,
749         vectorizable_load): Likewise.
750         (vect_is_simple_cond): Add an argument, pass it to
751         vect_is_simple_use_1.
752         (vectorizable_condition): Update calls to vect_is_simple_cond,
753         vect_is_simple_use.
754         (vect_is_simple_use): Add an argument, the statement in which
755         OPERAND is used.  Check that if OPERAND's def stmt is a double
756         reduction phi node, the use is a phi node too.
757         (vect_is_simple_use_1): Add an argument, pass it to
758         vect_is_simple_use.
759         * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
760         to vect_is_simple_use.
761
762 2012-02-04  Jakub Jelinek  <jakub@redhat.com>
763
764         PR rtl-optimization/52095
765         * modulo-sched.c (dump_insn_locator): New function.
766         (loop_canon_p, sms_schedule): Use it.
767
768         PR rtl-optimization/52113
769         * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
770         even for decomposable shift/zext insns.
771
772 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
773             Zdenek Dvorak  <ook@ucw.cz>
774
775         PR rtl-optimization/52092
776         * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
777         on get_iv_value result.
778
779 2012-02-02  Andrew Pinski  <apinski@cavium.com>
780
781         PR middle-end/47982
782         PR middle-end/43967
783         * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.
784
785 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
786
787         PR middle-end/48071
788         * diagnostic.c (diagnostic_finish): Remove trailing newlines.
789
790 2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>
791
792         PR rtl-optimization/49800
793         * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
794         (sched_finish): Call regstat_free_n_sets_and_refs.
795
796 2012-02-02  Jia Liu  <proljc@gmail.com>
797
798         * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
799         than operand 2.
800
801 2012-02-02 Jan Hubicka  <jh@suse.cz>
802            Tom de Vries  <tom@codesourcery.com>
803
804         PR middle-end/51998
805         * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
806         * varpool.c (varpool_analyze_pending_decls): Likewise.
807
808 2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
809             Jayant R Sonar <jayant.sonar@kpitcummins.com>
810
811         * config.gcc: Add cr16-* support.
812
813         * doc/extend.texi: Document cr16 extensions.
814         * doc/install.texi: Document cr16 install.
815         * doc/invoke.texi: Document cr16 options.
816         * doc/md.texi: Document cr16 constraints.
817
818         * common/config/cr16/cr16-common.c: New file.
819         * config/cr16/cr16.c: New file.
820         * config/cr16/cr16.h: New file.
821         * config/cr16/cr16.md: New file.
822         * config/cr16/cr16.opt: New file.
823         * config/cr16/cr16-protos.h: New file.
824         * config/cr16/predicates.md: New file.
825         * config/cr16/constraints.md: New file.
826         * config/cr16/t-cr16: New file.
827
828 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
829
830         PR target/52086
831         * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
832         that operands[2] is either immediate, or q_regs_operand.
833
834         PR tree-optimization/52073
835         * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
836         a pattern stmt for pattern uses, ignore uses outside of the loop.
837
838 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
839
840         * config/avr/avr.c: Resolve all AS1 and AS2 macros.
841         * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
842         (OUT_AS1, OUT_AS2): Remove.
843
844 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
845
846         PR rtl-optimization/51374
847         * combine.c (can_combine_p): Don't allow volatile_refs_p insns
848         to cross other volatile_refs_p insns.
849
850 2012-02-01  Richard Guenther  <rguenther@suse.de>
851
852         * doc/invoke.texi (fno-inline): Clarify documentation.
853         (finline-small-functions): Likewise.
854         (finline-functions): Likewise.
855         * common.opt (finline): Adjust comment and documentation.
856         (finline-small-functions): Clarify documentation.
857         (finline-functions): Likewise.
858         (finline-functions-called-once): Likewise.
859
860 2012-02-01  Tristan Gingold  <gingold@adacore.com>
861
862         * c-typeck.c (composite_type): Keep mode for pointers.
863
864 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
865
866         * function.h (regno_reg_rtx): Adjust comment.
867         * reginfo.c (init_reg_modes_target): Only use the previous mode
868         if it fits within one register.  Remove MIPS comment.
869
870 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
871
872         PR bootstrap/52058
873         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
874
875 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
876
877         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
878         to srak instruction.
879
880 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
881
882         * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.
883
884 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
885
886         PR bootstrap/52041
887         PR bootstrap/52039
888         PR target/51974
889         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
890
891 2012-01-31  Richard Guenther  <rguenther@suse.de>
892
893         PR tree-optimization/51528
894         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
895         assigns.
896
897 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
898
899         PR bootstrap/52041
900         PR bootstrap/52039
901         PR target/51974
902         * ree.c (add_removable_extension): Change def_map argument
903         to unsigned *, store in def_map 1 + offset into *insn_list vector
904         instead of pointers into the vector.
905         (find_removable_extensions): Adjust caller.
906
907 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
908
909         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
910         Transform all "* quoted-c-code" to { c-code }.
911         Remove redundant test for "optimize" in combine patterns.
912         Move (include "avr-dimode.md") to end of file.
913
914 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
915
916         PR target/51835
917         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
918         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
919
920 2012-01-30  Richard Guenther  <rguenther@suse.de>
921
922         PR tree-optimization/52028
923         * tree-loop-distribution.c (ldist_gen): Properly update
924         virtual SSA form.
925
926 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
927
928         PR debug/52027
929         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
930         set_cur_line_info_table if not emitting debug info.
931
932         PR tree-optimization/52046
933         * tree-vect-patterns.c (check_bool_pattern): Give up if
934         a comparison could throw.
935
936         PR debug/52048
937         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
938
939 2012-01-30  Richard Guenther  <rguenther@suse.de>
940
941         PR tree-optimization/52045
942         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
943         SSA form if cfgcleanup did anything.
944
945 2012-01-30  Richard Guenther  <rguenther@suse.de>
946
947         PR tree-optimization/52045
948         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
949         before computing final todo.
950
951 2012-01-30  Richard Guenther  <rguenther@suse.de>
952
953         PR tree-optimization/51528
954         * tree-sra.c (sra_modify_assign): Re-factor in preparation
955         for PR51528 fix.
956
957 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
958
959         * df-problems.c (df_kill_notes): Check that the use refers
960         to the note under examination.
961
962 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
963
964         PR target/51920
965         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
966         parameter and use short-lived pseudos.
967         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
968         (sparc_expand_vector_init): Const-ify local variables and adjust
969         calls to above functions.
970
971 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
972
973         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
974
975 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
976
977         * doc/invoke.texi: Make usage of "compile time" and
978         "run time"/"runtime" consistent throughout the file.
979
980 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
981
982         * config/alpha/alpha.c (alpha_option_override): Default to
983         full IEEE compliance mode for Go language.
984
985 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
986
987         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
988         (LINK_SSP_SPEC): Define.
989
990 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
991
992         PR target/51871
993         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
994         stubs.
995
996 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
997
998         * doc/invoke.texi: Correct hyphenation of "floating point",
999         "double precision", and related terminology throughout the file.
1000
1001 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
1002
1003         PR target/52006
1004         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
1005         arm_general_register_operand predicate for operand 2 instead of
1006         register_operand.
1007
1008 2012-01-27  Ian Lance Taylor  <iant@google.com>
1009
1010         PR go/47656
1011         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
1012         * builtins.c (expand_builtin_init_trampoline): Add onstack
1013         parameter.  Change caller.
1014         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
1015         * tree.c (build_common_builtin_nodes): Declare
1016         __builtin_init_heap_trampoline.
1017
1018 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
1019
1020         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
1021         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
1022         * config/avr/avr.c: Ditto.
1023         (avr_regnames): Remove because unused.
1024         * config/avr/avr.md (*cpse.ne): New peephole.
1025         (*cpse.eq): New peephole from former cpse peepholes.
1026
1027 2012-01-27  Michael Eager  <eager@eagercon.com>
1028
1029         * config/microblaze.c (microblaze_emit_compare): Correct
1030         test after pcmp instruction.
1031
1032 2012-01-27  Richard Guenther  <rguenther@suse.de>
1033
1034         PR tree-optimization/52020
1035         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
1036
1037 2012-01-27  Richard Guenther  <rguenther@suse.de>
1038
1039         * ipa-pure-const.c (check_stmt): Clobbers do not make a
1040         function non-const/pure.
1041
1042 2012-01-27  Richard Guenther  <rguenther@suse.de>
1043
1044         PR tree-optimization/50444
1045         * tree-sra.c (build_ref_for_offset): Properly adjust the
1046         MEM_REF type for unaligned accesses.
1047
1048 2012-01-27  Richard Guenther  <rguenther@suse.de>
1049
1050         PR tree-optimization/50444
1051         * expr.c (mem_ref_refers_to_non_mem_p): New function.
1052         (expand_assignment): Use it.  Properly handle misaligned
1053         bases when expanding stores to component references.
1054         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
1055         refactor that case.
1056
1057 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
1058
1059         PR middle-end/51389
1060         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
1061         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
1062         * tree-data-ref.c (find_data_references_in_loop): Make static.
1063         (compute_all_dependences): Change return type to bool.  Bail out
1064         for too many datarefs in a loop.  Move the hunk resetting the data
1065         dependences vector from ...
1066         (compute_data_dependences_for_loop): ... here.  Account for
1067         compute_all_dependences returning false.
1068         (compute_data_dependences_for_bb): Likewise.
1069         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
1070         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
1071
1072 2012-01-27  Richard Guenther  <rguenther@suse.de>
1073
1074         PR middle-end/51959
1075         * expr.c (store_field): Use the alias-set of the scratch memory
1076         for storing to it.
1077
1078 2012-01-27  Tom de Vries  <tom@codesourcery.com>
1079
1080         PR tree-optimization/51990
1081         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
1082         WITH_SIZE_EXPR.
1083         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
1084
1085 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
1086
1087         PR debug/52001
1088         * var-tracking.c (reverse_op): Don't add any reverse operation
1089         if V already has any constant locations.
1090
1091 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
1092
1093         * doc/invoke.texi: Correct usage of "command line" (noun)
1094         vs "command-line" (adjective) throughout.
1095
1096 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
1097
1098         * doc/invoke.texi (Language Independent Options): Move
1099         -Wcoverage-mismatch blurb from here....
1100         (Warning Options): ...to here.
1101
1102 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
1103
1104         * config/rs6000/rs6000.c (rs6000_option_override_internal):
1105         Set rs6000_always_hint to false for 476.
1106
1107 2012-01-27  Matthias Klose  <doko@ubuntu.com>
1108
1109         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
1110           system root.
1111         * incpath.c (add_standard_paths): Likewise.
1112
1113 2012-01-27  Richard Henderson  <rth@redhat.com>
1114
1115         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1116         * config/m68k/sync.md (atomic_test_and_set): Rename from
1117         sync_test_and_setqi and adjust the operands.
1118         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
1119         and unconditionally enable.
1120
1121 2012-01-27  Richard Henderson  <rth@redhat.com>
1122
1123         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1124         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
1125         (ldstub): Rename from ldstubqi.
1126         (ldstub<I24MODE>): Remove.
1127
1128 2012-01-27  Richard Henderson  <rth@redhat.com>
1129
1130         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1131         * c-cppbuiltin.c (cpp_atomic_builtins): Define
1132         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
1133         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
1134         * doc/tm.texi: Rebuild.
1135
1136 2012-01-27  Richard Henderson  <rth@redhat.com>
1137
1138         * optabs.c (gen_atomic_test_and_set): Remove default.
1139         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
1140
1141 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
1142
1143         PR rtl-optimization/51978
1144         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
1145         (combine_reaching_defs): Likewise.
1146         (struct re_info): Remove.
1147         (add_removable_extension): Remove x and data arguments,
1148         add insn, insn_list and def_map.  Use the arguments directly
1149         instead of using struct re_info.
1150         (find_removable_extensions): Don't call add_removable_extension
1151         through note_stores, instead just call it with single_set
1152         result if non-NULL.
1153         (find_and_remove_re): Pass curr_cand->expr instead of
1154         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
1155
1156 2012-01-26  Michael Matz  <matz@suse.de>
1157
1158         PR tree-optimization/46590
1159         * cfgexpand.c: Revert last change (r183305).
1160         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
1161         regs.
1162         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
1163         checking for emptiness.
1164
1165 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
1166
1167         PR middle-end/51895
1168         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
1169         non-addressable non-BLKmode base correctly.
1170
1171 2012-01-26  Michael Matz  <matz@suse.de>
1172
1173         PR tree-optimization/48794
1174         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
1175         regions referenced from RESX/EH_DISPATCH.
1176
1177 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1178
1179         * config/s390/s390.h: Make BRANCH_COST an option.
1180         * config/s390/s390.opt: New option -mbranch-cost.
1181
1182 2012-01-26  Richard Henderson  <rth@redhat.com>
1183
1184         Revert 2012-01-24 change:
1185         * trans-mem.c (requires_barrier): Do not instrument thread local
1186         variables and emit save/restore for them.
1187
1188 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
1189
1190         PR middle-end/51986
1191         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
1192         for pat == 0.
1193
1194 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
1195
1196         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
1197         ASM_OPERANDS.
1198
1199 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
1200
1201         PR target/49868
1202         Rename __pgm to __flash.
1203         Rename __pgm1 to __flash1.
1204         Rename __pgm2 to __flash2.
1205         Rename __pgm3 to __flash3.
1206         Rename __pgm4 to __flash4.
1207         Rename __pgm5 to __flash5.
1208         Rename __pgmx to __memx.
1209         * doc/extend.texi (AVR Named Address Spaces)
1210         Rename address space names as indicated above.
1211         * config/avr/avr.c (avr_addrspace): Ditto.
1212
1213         * config/avr/avr-protos.h
1214         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
1215         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
1216         * config/avr/predicates.md: Ditto.
1217         * config/avr/avr.c Ditto, and
1218         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
1219         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
1220
1221         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
1222         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
1223         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
1224         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
1225         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
1226         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
1227         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
1228         * config/avr/avr.c: Ditto.
1229         * config/avr/avr.md: Ditto.
1230
1231 2012-01-25  Jason Merrill  <jason@redhat.com>
1232
1233         PR c++/51992
1234         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
1235
1236 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
1237
1238         PR tree-optimization/51987
1239         * tree-data-ref.c (get_references_in_stmt): Handle references in
1240         non-volatile GIMPLE_ASM.
1241
1242 2012-01-25  Richard Guenther  <rguenther@suse.de>
1243
1244         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
1245         bases are dereferenced.
1246
1247 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
1248
1249         PR rtl-optimization/48374
1250         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
1251
1252 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
1253
1254         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
1255         compute_data_dependences_for_loop returns false.
1256         * tree-parloops.c (loop_parallel_p): Likewise.
1257
1258 2012-01-25  Richard Guenther  <rguenther@suse.de>
1259
1260         * tree.h (get_pointer_alignment_1): Declare.
1261         * builtins.c (get_pointer_alignment_1): New function.
1262         (get_pointer_alignment): Use it.
1263
1264 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
1265
1266         PR rtl-optimization/48308
1267         * combine.c (enum undo_kind): Add UNDO_LINKS.
1268         (struct undo): Add member l to other_contents and where.
1269         (do_SUBST_LINK): New.
1270         (SUBST_LINK): New.
1271         (try_combine): Handle LOG_LINKS for the dummy i1 case.
1272         (undo_all): Handle UNDO_LINKS.
1273
1274 2012-01-25  Richard Henderson  <rth@redhat.com>
1275
1276         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
1277         mem inputs.
1278
1279 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1280
1281         * optabs.c (gen_atomic_test_and_set): Use each argument.
1282
1283 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1284
1285         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
1286         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
1287         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
1288         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
1289         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
1290         TARGET_PAIRED_SINGLE_FLOAT.
1291
1292 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1293
1294         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
1295         (in_struct, return_val): Remove MEM documentation.
1296         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
1297         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
1298         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
1299         and MEM_SCALAR.
1300         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1301         * cfgexpand.c (add_alias_set_conflicts): Likewise.
1302         * expr.c (store_field): Likewise.
1303         * function.c (assign_stack_temp_for_type): Likewise.
1304         * ifcvt.c (noce_try_cmove_arith): Likewise.
1305         * reload1.c (reload): Likewise.
1306         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
1307         (alpha_set_memflags): Likewise.
1308         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
1309
1310 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1311
1312         * rtl.h (true_dependence, canon_true_dependence): Remove varies
1313         parameter.
1314         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
1315         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
1316         (true_dependence_1, true_dependence, canon_true_dependence): Remove
1317         varies parameter.
1318         * cselib.c (cselib_rtx_varies_p): Delete.
1319         (cselib_invalidate_mem): Update call to canon_true_dependence.
1320         * dse.c (record_store, check_mem_read_rtx): Likewise.
1321         (scan_reads_nospill): Likewise.
1322         * cse.c (check_dependence): Likewise.
1323         (cse_rtx_varies_p): Delete.
1324         * expr.c (safe_from_p): Update call to true_dependence.
1325         * ira.c (validate_equiv_mem_from_store): Likewise.
1326         (memref_referenced_p): Likewise.
1327         * postreload-gcse.c (find_mem_conflicts): Likewise.
1328         * sched-deps.c (sched_analyze_2): Likewise.
1329         * store-motion.c (load_kills_store): Likewise.
1330         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
1331         * gcse.c (mems_conflict_for_gcse_p): Likewise.
1332         (compute_transp): Update call to canon_true_dependence.
1333
1334 2012-01-25  Richard Henderson  <rth@redhat.com>
1335
1336         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
1337         (maybe_emit_atomic_test_and_set): New.
1338         (expand_sync_lock_test_and_set): Use it.
1339         (expand_atomic_test_and_set): Likewise.
1340         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
1341         the implementation; clarify implementation defined details.
1342         * doc/md.texi (atomic_test_and_set): Document.
1343
1344 2012-01-25  Richard Henderson  <rth@redhat.com>
1345
1346         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
1347
1348 2012-01-25  Richard Henderson  <rth@redhat.com>
1349
1350         PR target/51968
1351         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
1352         to effect no-op split.
1353
1354 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
1355
1356         PR lto/51698
1357         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
1358         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
1359         (BT_FN_VOID_PTR_INT_SIZE): New.
1360         (BT_FN_UINT_UINT_VAR): Remove.
1361         (BT_FN_UINT32_UINT32_VAR): New.
1362         (BT_FN_DOUBLE_VPTR): Remove.
1363         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
1364
1365         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
1366         (_ITM_changeTransactionMode): Same.
1367         (_ITM_memmoveRtWt): Change return type to void.
1368         (_ITM_memcpyRtWt): Same.
1369         (_ITM_memsetW): Same.
1370         (_ITM_RaRD): Change types to double.
1371         (_ITM_RD): Same.
1372         (_ITM_RaWD): Same.
1373         (_ITM_RfWD): Same.
1374
1375         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
1376
1377 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
1378             Patrick Marlier  <patrick.marlier@gmail.com>
1379
1380         * trans-mem.c (requires_barrier): Do not instrument thread local
1381         variables and emit save/restore for them.
1382
1383 2012-01-24  Jason Merrill  <jason@redhat.com>
1384
1385         PR c++/51812
1386         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
1387         output static aliases.
1388
1389 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
1390
1391         PR driver/47249
1392         * common.opt (-pie, -shared, pie, shared): Change from Common to
1393         Driver.
1394         * gcc.c (display_help): Display help for -pie and -shared.
1395
1396 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
1397
1398         PR target/49868
1399         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
1400         Remove note on size/offset limitation.
1401         (AVR Variable Attributes): Add example how to read data located
1402         with progmem.  Refer to named address spaces.
1403         * doc/invoke.texi (AVR Options): Fix typo.
1404
1405 2012-01-24  Richard Guenther  <rguenther@suse.de>
1406
1407         Forward-port to trunk
1408         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
1409
1410         PR middle-end/45678
1411         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
1412         op0 isn't sufficiently aligned and there is movmisalignM
1413         insn for mode, use it to load op0 into a temporary register.
1414
1415 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
1416
1417         PR target/51957
1418         * target.def (const_not_ok_for_debug_p): New hook.
1419         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
1420         documentation.
1421         * doc/tm.texi: Regenerated.
1422         * dwarf2out.c (const_ok_for_output_1): If
1423         targetm.const_not_ok_for_debug_p returns true, fail.
1424         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
1425         function.
1426         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
1427
1428 2012-01-23  Kai Tietz  <ktietz@redhat.com>
1429
1430         PR target/51900
1431         * config/i386/predicates.md (symbolic_operand): Allow
1432         UNSPEC_PCREL as PIC expression for lea.
1433         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
1434         * config/i386/i386.c (ix86_delegitimize_address): Handle
1435         UNSPEC_PCREL for none-MEM, too.
1436
1437 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
1438
1439         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
1440         (ipa_tm_create_version_alias): Same.
1441
1442 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
1443
1444         PR libitm/51830
1445         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
1446         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
1447
1448 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
1449             Patrick Marlier  <patrick.marlier@gmail.com>
1450             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
1451
1452         PR lto/51916
1453         * lto-wrapper.c (run_gcc): Pass the LTO section name to
1454         simple_object_start_read.
1455
1456 2012-01-23  Richard Guenther  <rguenther@suse.de>
1457
1458
1459         PR tree-optimization/51895
1460         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
1461         parameter decomposition into BLKmode components.
1462
1463 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
1464
1465         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
1466         fake variables for restrict-qualified pointers whose pointed-to type
1467         contains a placeholder.
1468
1469 2012-01-23  Richard Guenther  <rguenther@suse.de>
1470
1471         PR tree-optimization/51949
1472         * ipa-split.c (execute_split_functions): Do not split malloc functions.
1473
1474 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
1475
1476         PR rtl-optimization/51933
1477         * ree.c (transform_ifelse): Return true right away if dstreg is
1478         already wider or equal to cand->mode.
1479         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
1480         (make_defs_and_copies_lists): Remove defs_list and copies_list
1481         arguments, add state argument, just truncate state->work_list
1482         instead of always allocating and freeing the vector.  Assert that
1483         get_defs succeeds instead of returning 2.  Changed return type to bool.
1484         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
1485         have ext_src_mode, see if it has been modified already with the
1486         right kind of extension and has been extended before from the
1487         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
1488         just return true.  Remember the original mode in state->modified array.
1489         (combine_reaching_defs): Add state argument.  Don't allocate and
1490         free here def_list, copied_list and vec vectors, instead just
1491         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
1492         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
1493         Add state variable, clear vectors in it, initialize state.modified
1494         if needed.  Free all the vectors at the end and state.modified too.
1495         Don't skip a candidate if the extension expression has been modified.
1496
1497 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
1498
1499         PR target/47096
1500         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
1501          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
1502         (extra_options) interix.opt -> i386/interix.opt"
1503         (extra_objs):Add winnt-stubs.o
1504         * configure.ac: Add interix to target_os .comm on PE check.
1505         * configure: Regenerate.
1506         * config/interix3.h: Delete and move bits to..
1507         * config/interix.h: Delete and move bits to..
1508         * config/i386/i386-interix3.h: Delete and move bits to..
1509         * config/i386/i386-interix.h: ..here.
1510         (TARGET_CPU_DEFAULT): Remove redefinition.
1511         (TARGET_ASM_CONSTRUCTOR): Undefine.
1512         (SUBTARGET_SWITCHES): Define for ms-bitfields.
1513         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
1514         (PTRDIFF_TYPE): Define.
1515         (LONG_DOUBLE_TYPE_SIZE): Define.
1516         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
1517         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
1518         (TARGET_SECTION_TYPE_FLAGS): Define.
1519         (ASM_DECLARE_FUNCTION_NAME): Define.
1520         (ASM_OUTPUT_EXTERNAL): Define.
1521         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
1522         (ASM_OUTPUT_ALIGNED_BSS): Define.
1523         (PCC_BITFIELD_TYPE_MATTERS): Define.
1524         (USE_CONST_SECTION): Define.
1525         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
1526         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
1527         (SUPPORTS_ONE_ONLY): Remove.
1528         (I386_PE_STRIP_ENCODING): Define.
1529         * config/interix.opt: Delete and move bits to..
1530         * config/i386/interix.opt: ..here. New.
1531         (mpe-aligned-commons): Add.
1532         * config/i386/t-interix: Add copyright header.
1533         (winnt-stubs.o): Add rule.
1534
1535 2012-01-22  Jason Merrill  <jason@redhat.com>
1536
1537         PR c++/51832
1538         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
1539         for extra name aliases.
1540
1541 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
1542
1543         PR rtl-optimization/51924
1544         * ree.c (combine_set_extension): Improve debugging message.
1545         (combine_reaching_defs): Likewise.
1546         (get_defs): Rename confusingly named variable.
1547         (find_and_remove_re): Skip a candidate if the extension expression has
1548         been modified.
1549
1550 2012-01-21  Robert Millan  <rmh@gnu.org>
1551             Gerald Pfeifer  <gerald@pfeifer.com>
1552
1553         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
1554         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
1555
1556 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
1557
1558         PR tree-optimization/51914
1559         * tree-vect-stmts.c (vectorizable_conversion): For
1560         cvt_type && modifier == WIDEN, put temporary with cvt_type
1561         at the beginning of vec_dsts and set vec_dest to temporary
1562         with vectype_out.
1563
1564 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
1565
1566         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
1567
1568 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
1569
1570         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
1571         * config/rs6000/rs6000.c: Likewise.
1572
1573 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
1574
1575         PR target/51915
1576         * config/arm/arm.c (arm_count_output_move_double_insns): Call
1577         output_move_double on a copy of operands array.
1578
1579 2012-01-20  Cary Coutant  <ccoutant@google.com>
1580             Dodji Seketeli  <dodji@redhat.com>
1581
1582         PR debug/45682
1583         * dwarf2out.c (copy_declaration_context): Return ref to parent
1584         of declaration DIE, if necessary.
1585         (remove_child_or_replace_with_skeleton): Add new parameter; update
1586         caller.  Place skeleton DIE under parent DIE of original declaration.
1587         Move call to copy_declaration_context to here ...
1588         (break_out_comdat_types): ... from here.
1589
1590 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1591
1592         PR rtl-optimization/51856
1593         * reload.c (find_reloads_subreg_address): Set the address_reloaded
1594         flag to reloaded.
1595
1596 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
1597
1598         PR target/51819
1599         * config/arm/arm.c (arm_print_operand): Correct output of alignment
1600         hints for neon loads and stores.
1601
1602 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
1603
1604         PR target/49868
1605         PR target/50887
1606         * doc/extend.texi (Named Address Spaces): Split into subsections.
1607         (AVR Named Address Spaces): New subsection.
1608         (M32C Named Address Spaces): New subsection.
1609         (RL78 Named Address Spaces): New subsection.
1610         (SPU Named Address Spaces): New subsection.
1611         (Variable Attributes): New anchor "AVR Variable Attributes".
1612         (AVR Variable Attributes): Rewrite and avoid wording
1613         "address space" in this context.
1614         * doc/invoke.texi (AVR Options): Rewrite and add documentation
1615         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
1616         (AVR Built-in Macros): New subsubsection therein.
1617         * doc/md.texi (AVR constraints): Remove "C04", "R".
1618
1619 2012-01-20  Richard Guenther  <rguenther@suse.de>
1620
1621         PR tree-optimization/51903
1622         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
1623         when removing stmts.
1624
1625 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
1626
1627         PR target/50313
1628         * config/arm/arm.c (arm_load_pic_register): Use
1629         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
1630         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
1631         (arm_pic_static_addr): Likewise.
1632         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
1633         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
1634         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
1635         (pic_load_addr_unified): New.
1636
1637 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
1638
1639         PR target/51106
1640         * function.c (instantiate_virtual_regs_in_insn): Use
1641         delete_insn_and_edges when removing a wrong asm insn.
1642
1643 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
1644
1645         PR rtl-optimization/40761
1646         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
1647         Add new member loop_num.
1648         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
1649         (ira_build): Remove the parameter.
1650
1651         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
1652         (ira.c): Do not build CFG loops for one region allocation.  Remove
1653         argument from ira_build call.
1654
1655         * ira-build.c (init_loop_tree_node): New function.
1656         (create_loop_tree_nodes): Use it.  Separate the case when CFG
1657         loops are not built.
1658         (more_one_region_p): Check current_loops.
1659         (finish_loop_tree_nodes): Separate the case when CFG loops are not
1660         built.
1661         (add_loop_to_tree): Process loop equal to NULL too.
1662         (form_loop_tree): Separate the case when CFG loops are not built.
1663         Use explicitly number for the root.
1664         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
1665         an assertion.
1666         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
1667         instead of loop->num.
1668         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
1669         (mark_all_loops_for_removal): Ditto.
1670         (remove_unnecessary_regions): Separate the case when CFG loops
1671         are not built.
1672         (ira_build): Remove the parameter.  Use explicit number of regions
1673         when CFG loops are not built.
1674
1675         * ira-color.c (print_loop_title): Separate the case for the root node.
1676         Use loop_num instead of loop->num.
1677         (move_spill_restore): Use loop_num instead of loop->num.
1678
1679         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
1680         (change_loop): Ditto.
1681         (change_loop): Use loop_num instead of loop->num.
1682
1683         * ira-lives.c (process_bb_node_lives): Ditto.
1684
1685         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
1686
1687         * ira-conflicts.c (print_allocno_conflicts): Ditto.
1688
1689 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
1690
1691         PR libmudflap/40778
1692         * tree-mudflap.c (mf_artificial): New function.
1693         (execute_mudflap_function_ops, execute_mudflap_function_decls,
1694         mx_register_decls, mudflap_enqueue_decl): Use it.
1695
1696         PR target/51876
1697         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
1698         numbers in the insn pattern.
1699
1700 2012-01-19  Michael Matz  <matz@suse.de>
1701
1702         PR tree-optimization/46590
1703         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
1704         use it in remembering which conflicts we already created.
1705         (add_scope_conflicts): Adjust call to above, (de)allocate helper
1706         bitmap.
1707
1708 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
1709
1710         PR lto/51280
1711         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
1712         (merge_and_complain): Same.
1713
1714 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
1715
1716         PR bootstrap/50237
1717         * config/initfini-array.h: Guard content of the header
1718         with #ifdef HAVE_INITFINI_ARRAY.
1719         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
1720         Add initfini-array.h to tm_file here.
1721         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
1722         * config.gcc: Don't add initfini-array.h to tm_file here.
1723         * configure: Regenerated.
1724
1725 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
1726
1727         PR rtl-optimization/51505
1728         * df-problems.c (df_kill_notes): New parameter live. Update comment.
1729         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
1730         (df_note_bb_compute): Update the call to df_kill_notes.
1731
1732 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
1733
1734         * trans-mem.c (requires_barrier): Remove call to is_global_var.
1735
1736 2012-01-18  Richard Guenther  <rguenther@suse.de>
1737
1738         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
1739         of conversions to void *.
1740
1741 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1742             Richard Sandiford  <rdsandiford@googlemail.com>
1743
1744         PR middle-end/50325
1745         PR middle-end/51192
1746         * optabs.h (simplify_expand_binop): Declare.
1747         * optabs.c (simplify_expand_binop): Make global.
1748         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
1749         endian targets if the source cannot be exactly covered by word
1750         mode chunks.
1751
1752 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
1753
1754         PR bootstrap/51872
1755         * hard-reg-set.h (struct hard_reg_set_container): New type.
1756         * target.h (struct hard_reg_set_container): Forward declare.
1757         * target.def (set_up_by_prologue): New target hook.
1758         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
1759         * doc/tm.texi: Regenerated.
1760         * function.c (thread_prologue_and_epilogue_insns): Change
1761         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
1762         Call targetm.set_up_by_prologue on it.
1763         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
1764         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
1765
1766 2012-01-17  Nick Clifton  <nickc@redhat.com>
1767
1768         * config/rx/rx.c (rx_can_use_simple_return): New function.
1769         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
1770         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
1771
1772 2012-01-17  Richard Guenther  <rguenther@suse.de>
1773
1774         PR middle-end/51782
1775         * expr.c (expand_assignment): Take address-space information
1776         from the address operand of MEM_REF and TARGET_MEM_REF.
1777         (expand_expr_real_1): Likewise.
1778
1779 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1780
1781         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
1782         reload dump is requested.
1783
1784 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
1785
1786         PR other/51165
1787         * trans-mem.c (requires_barrier): Call may_be_aliased.
1788
1789 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
1790
1791         PR tree-optimization/51877
1792         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
1793         call arguments and fndecls compare equal, instead return false if they
1794         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
1795         both SSA_NAMEs that are valueized the same, or they satisfy
1796         operand_equal_p.
1797
1798 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1799
1800         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
1801         Solaris 11+.
1802         * configure: Regenerate.
1803
1804 2012-01-16  Jan Hubicka  <jh@suse.cz>
1805
1806         PR c/12245
1807         PR c++/14179
1808         * convert.c (convert_to_integer): Use fold_convert for
1809         converting an INTEGER_CST to integer type.
1810
1811 2012-01-16  Jason Merrill  <jason@redhat.com>
1812
1813         PR c++/14179
1814         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
1815
1816 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
1817
1818         PR bootstrap/51860
1819         * config/s390/s390.c (s390_chunkify_start): Don't skip
1820         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
1821         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
1822         If insn is followed by NOTE_INSN_VAR_LOCATION or
1823         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
1824         Don't use location of note insns.
1825
1826         PR tree-optimization/51865
1827         * tree-inline.c (tree_function_versioning): Call remap_decl
1828         on DECL_RESULT whenever it has VOID_TYPE_P type.
1829
1830 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
1831
1832         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
1833         for calls to locally-binding MIPS16 functions if only the return
1834         type uses float regs.
1835
1836 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
1837             Richard Sandiford  <rdsandiford@googlemail.com>
1838
1839         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
1840         (SYMBOL_32_HIGH): Likewise.
1841         (mips_output_tls_reloc_directive): Declare.
1842         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
1843         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
1844         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
1845         (mips_lo_relocs, mips_hi_relocs): Make extern.
1846         (mips16_stub_function): Move up file.
1847         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
1848         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
1849         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
1850         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
1851         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
1852         (mips_get_tp): Add MIPS16 support.
1853         (mips_legitimize_tls_address): Remove MIPS16 sorry().
1854         Generalize DTPREL and TPREL handling.
1855         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
1856         Add MIPS16 TLS support.
1857         (mips_output_tls_reloc_directive): New function.
1858         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
1859         * config/mips/predicates.md (symbolic_operand_with_high)
1860         (tls_reloc_operand): New predicates.
1861         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
1862         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
1863         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
1864         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
1865         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
1866         (*tls_get_tp_mips16_call_<mode>): Likewise.
1867
1868 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
1869
1870         PR rtl-optimization/51821
1871         * recog.c (peep2_find_free_register): Determine clobbered registers
1872         from insn pattern.
1873
1874 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
1875
1876         PR target/50925
1877         * config/avr/avr-protos.h: Revert change of 2012-01-09.
1878         * config/avr/avr.c: Likewise.
1879         * config/avr/avr.h: Likewise.
1880
1881 2012-01-13  Ian Lance Taylor  <iant@google.com>
1882
1883         PR c++/50012
1884         * tree.h (TYPE_QUALS): Add cast to int.
1885         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
1886
1887 2012-01-13  Ian Lance Taylor  <iant@google.com>
1888
1889         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
1890         comparing param_index to VEC_length result.
1891
1892 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
1893
1894         * c-decl.c: Do not include tree-mudflap.h
1895         * tree-optimize.c: Likewise.
1896         * Makefile.in: Update dependencies.
1897
1898 2012-01-13  Richard Guenther  <rguenther@suse.de>
1899
1900         PR middle-end/8081
1901         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
1902         variable-sized result always use RSO.
1903
1904 2012-01-12  DJ Delorie  <dj@redhat.com>
1905
1906         * cfgexpand.c (convert_debug_memory_address): Allow any valid
1907         pointer type, not just the default pointer type.
1908
1909 2012-01-09  Richard Henderson  <rth@redhat.com>
1910             Denis Chertykov  <chertykov@gmail.com>
1911
1912         PR target/50925
1913         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
1914         * config/avr/avr.c (avr_can_eliminate): Simplify.
1915         (avr_initial_elimination_offset): Likewise.
1916         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
1917         (expand_epilogue): Likewise.
1918         (avr_legitimize_address): Gut.
1919         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
1920         (avr_hard_regno_nregs): New.
1921         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
1922         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
1923         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
1924         add soft frame pointer.
1925         (CALL_USED_REGISTERS): Likewise.
1926         (REG_CLASS_CONTENTS): Likewise.
1927         (REGISTER_NAMES): Likewise.
1928         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
1929         (HARD_FRAME_POINTER_REGNUM): New.
1930         (FRAME_POINTER_REGNUM): Use soft frame pointer.
1931         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
1932         remove the HARD_FRAME_POINTER self-elimination.
1933
1934 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
1935
1936         PR target/51756
1937         * config/avr/avr.c (avr_encode_section_info): Test for absence of
1938         DECL_EXTERNAL when checking for initializers of progmem variables.
1939
1940 2012-01-12  Ira Rosen  <irar@il.ibm.com>
1941
1942         PR tree-optimization/51799
1943         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
1944         that the last operation is a type demotion.
1945
1946 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
1947
1948         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
1949         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
1950
1951 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
1952
1953         PR bootstrap/51796
1954         * combine.c (distribute_notes): If i3 is a noreturn call,
1955         allow old_size to be equal to args_size and make sure the
1956         noreturn call gets REG_ARGS_SIZE note.
1957         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
1958         on noreturn calls even when the delta is 0.
1959
1960 2012-01-11  Nathan Sidwell  <nathan@acm.org>
1961
1962         * gcov.c (STRING_SIZE): Remove.
1963         (generate_results): Erase annotations for source files with no
1964         coverage information.
1965         (read_line): New.
1966         (output_lines): Use it.
1967
1968 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1969
1970         * gimple.h (gimplify_body): Remove first argument.
1971         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
1972         pointer set here, instead just pass DATA to walk_tree.
1973         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
1974         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
1975         (unvisit_body): Likewise, but with unmark_visited.
1976         (gimplify_body): Remove BODY_P argument and adjust.
1977         (gimplify_function_tree): Adjust call to gimplify_body.
1978         * omp-low.c (finalize_task_copyfn): Likewise.
1979
1980 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1981
1982         * tree.h (build_function_decl_skip_args): Add boolean parameter.
1983         (build_function_type_skip_args): Delete.
1984         * tree.c (build_function_type_skip_args): Make static and add
1985         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
1986         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
1987         pass it to build_function_type_skip_args.
1988         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
1989         (tree_function_versioning): Likewise.
1990         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
1991         build_function_decl_skip_args.
1992         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
1993         and pass it to build_function_decl_skip_args/tree_function_versioning.
1994         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
1995         * ipa-inline-transform.c (save_inline_function_body): Likewise.
1996         * trans-mem.c (ipa_tm_create_version): Likewise.
1997         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
1998         * tree-inline.c (declare_return_variable): Remove always-true test.
1999         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
2000         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
2001         * ipa-split.c (split_function): Skip the return value for the split
2002         part if it doesn't return.
2003
2004 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2005
2006         PR tree-optimization/49642
2007         * ipa-split.c (forbidden_dominators): New variable.
2008         (check_forbidden_calls): New function.
2009         (dominated_by_forbidden): Likewise.
2010         (consider_split): Check for forbidden dominators.
2011         (execute_split_functions): Initialize and free forbidden
2012         dominators info; call check_forbidden_calls.
2013
2014 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
2015
2016         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
2017
2018 2012-01-11  Nick Clifton  <nickc@redhat.com>
2019
2020         * config/rx/rx.md (return): Define pattern.
2021
2022 2012-01-11  Richard Guenther  <rguenther@suse.de>
2023
2024         * doc/extend.texi (malloc attribute): Adjust according to
2025         implementation.
2026
2027 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
2028             Patrick Marlier  <patrick.marlier@gmail.com>
2029
2030         PR middle-end/51516
2031         * trans-mem.c (get_cg_data): Traverse aliases if requested.
2032         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
2033         (ipa_tm_note_irrevocable): Same.
2034         (ipa_tm_scan_irr_block): Same.
2035         (ipa_tm_decrement_clone_counts): Same.
2036         (ipa_tm_scan_irr_function): Same.
2037         (ipa_tm_create_version_alias): Same.
2038         (ipa_tm_create_version): Same.
2039         (ipa_tm_transform_calls_redirect): Same.
2040         (ipa_tm_transform_calls): Same.
2041         (ipa_tm_transform_transaction): Same.
2042         (ipa_tm_execute): Same.
2043
2044 2012-01-10  Richard Guenther  <rguenther@suse.de>
2045
2046         PR middle-end/51806
2047         * opts.c (common_handle_option): Handle -Werror.
2048
2049 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
2050
2051         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
2052         operand number.
2053
2054 2012-01-10  Jason Merrill  <jason@redhat.com>
2055
2056         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
2057         information.
2058
2059 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2060
2061         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
2062         supports R_386_TLS_GD_PLT reloc.
2063         (gcc_cv_as_ix86_tlsldmplt): Check if linker
2064         supports R_386_TLS_LDM_PLT reloc.
2065         * configure: Regenerate.
2066         * config.in: Regenerate.
2067
2068 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
2069
2070         PR target/49868
2071         Extend __pgmx semantics to linearize memory.
2072         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
2073         determine if code comes inline or from libgcc.
2074         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
2075         (movmem_qi, movmem_qi): Set constraint #2 to "n".
2076         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
2077         (movmemx_qi, movmemx_hi): New insns.
2078         (xload_<mode>_libgcc): Rewrite to new insn condition.
2079         (xload_<mode>): Remove insns.
2080         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
2081         cases that don't satisfy avr_xload_libgcc_p().
2082         (avr_addr_space_convert): Allow converting in any direction.
2083         (avr_addr_space_subset_p): Return always true.
2084         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
2085         (avr_emit_movmemhi): Ditto.
2086         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
2087         (avr_out_movmem): Ditto.
2088         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
2089         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
2090         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
2091         (avr_encode_section_info): Encode 'progmem' in symbol flags.
2092         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
2093
2094 2012-01-10  Richard Guenther  <rguenther@suse.de>
2095
2096         PR tree-optimization/50913
2097         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
2098         Require data-refs to be representable by Graphite with respect
2099         to any loop nest.
2100
2101 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
2102
2103         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
2104         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
2105
2106 2012-01-10  Tom de Vries  <tom@codesourcery.com>
2107
2108         PR rtl-optimization/51271
2109         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
2110         handling annulled branch.
2111
2112 2012-01-10  Richard Henderson  <rth@redhat.com>
2113
2114         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
2115         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
2116         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
2117         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
2118         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
2119         arm_expand_vec_perm_const): New.
2120         * config/arm/arm-protos.h: Update.
2121         * config/arm/neon.md (UNSPEC_VCONCAT): New.
2122         (*neon_vswp<VDQX>): New.
2123         (neon_vcombine<VDX>): Use neon_split_vcombine.
2124         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
2125         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
2126         (vec_perm<VE>): New.
2127
2128 2012-01-10  Richard Henderson  <rth@redhat.com>
2129
2130         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
2131         use it if reload_completed.
2132         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
2133         arm_output_asm_insn, arm_process_output_memory_barrier,
2134         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
2135         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
2136         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
2137         arm_process_output_sync_insn, arm_output_sync_insn,
2138         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
2139         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
2140         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
2141         (emit_unlikely_jump): New.
2142         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
2143         (arm_split_atomic_op): New.
2144         * config/arm/arm-protos.h: Update.
2145         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
2146         (struct arm_sync_generator): Remove.
2147         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
2148         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
2149         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
2150         (VUNSPEC_LL, VUNSPEC_SC): New.
2151         (sync_result, sync_memory, sync_required_value, sync_new_value,
2152         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
2153         (attr length): Don't use arm_sync_loop_insns.
2154         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
2155         (movsfcc, movdfcc): Likewise.
2156         * config/arm/constraints.md (Ua): New.
2157         * config/arm/prediates.md (mem_noofs_operand): New.
2158         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
2159         (sync_clobber, sync_t2_reqd): Remove.
2160         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
2161         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
2162         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
2163         (arm_sync_compare_and_swap<SIDI>): Remove.
2164         (arm_sync_compare_and_swap<NARROW>): Remove.
2165         (arm_sync_lock_test_and_set<SIDI>): Remove.
2166         (arm_sync_lock_test_and_set<NARROW>): Remove.
2167         (arm_sync_new_<syncop><SIDI>): Remove.
2168         (arm_sync_new_<syncop><NARROW>): Remove.
2169         (arm_sync_new_nand<SIDI>): Remove.
2170         (arm_sync_new_nand<NARROW>): Remove.
2171         (arm_sync_old_<syncop><SIDI>): Remove.
2172         (arm_sync_old_<syncop><NARROW>): Remove.
2173         (arm_sync_old_nand<SIDI>): Remove.
2174         (arm_sync_old_nand<NARROW>): Remove.
2175         (*memory_barrier): Merge arm_output_memory_barrier.
2176         (atomic_compare_and_swap<QHSD>): New.
2177         (atomic_compare_and_swap<NARROW>_1): New.
2178         (atomic_compare_and_swap<SIDI>_1): New.
2179         (atomic_exchange<QHSD>): New.
2180         (cas_cmp_operand, cas_cmp_str): New.
2181         (atomic_op_operand, atomic_op_str): New.
2182         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
2183         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
2184         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
2185         (arm_load_exclusive<NARROW>): New.
2186         (arm_load_exclusivesi, arm_load_exclusivedi): New.
2187         (arm_store_exclusive<QHSD>): New.
2188
2189 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
2190
2191         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
2192         reload patterns if -mvsx-scalar-memory.
2193
2194         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
2195         generated, even -mno-vsx-scalar-double was used.
2196         (vsx_xscvdpsp_scalar): Likewise.
2197         (vsx_xscvspdp_scalar2): Likewise.
2198
2199 2012-01-09  Tom de Vries  <tom@codesourcery.com>
2200             Andrew Pinski  <apinski@cavium.com>
2201
2202         PR debug/51471
2203         * reorg.c (fill_slots_from_thread): Don't speculate
2204         frame-related insns.
2205
2206 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
2207
2208         * sched-int.h (bb_note): Move to...
2209         * basic-block.h: ...here.
2210         * haifa-sched.c (bb_note): Move to...
2211         * cfgrtl.c: ...here.
2212         * function.c (next_block_for_reg): New function.
2213         (move_insn_for_shrink_wrap): Likewise.
2214         (prepare_shrink_wrap): Rewrite to use the above.
2215
2216 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
2217
2218         * gimple.c (is_gimple_non_addressable): Remove.
2219         * gimple.h: Remove is_gimple_non_addressable.
2220         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
2221         is_gimple_non_addressable.
2222         * trans-mem.c (expand_assign_tm): Same.
2223
2224 2012-01-09  Richard Guenther  <rguenther@suse.de>
2225
2226         PR tree-optimization/51775
2227         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
2228         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
2229
2230 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
2231
2232         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
2233         tuning parameters.
2234         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
2235
2236 2012-01-09  Richard Guenther  <rguenther@suse.de>
2237
2238         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
2239
2240 2012-01-08  Jan Hubicka  <jh@suse.cz>
2241
2242         PR tree-optimize/51680
2243         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
2244         on when known_vals needs to be computed; cleanup.
2245
2246 2012-01-08  Jan Hubicka  <jh@suse.cz>
2247
2248         PR tree-optimize/51694
2249         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
2250
2251 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
2252
2253         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
2254         for -std=c++98 and -std=c++11 too.
2255
2256 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
2257
2258         * cfgloop.c (cancel_loop): Add free() of bbs array.
2259
2260 2012-01-07  Jan Hubicka  <jh@suse.cz>
2261
2262         PR tree-optimization/51600
2263         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
2264         that benefits small functions.
2265
2266 2012-01-07  Jan Hubicka  <jh@suse.cz>
2267
2268         * ipa-inline.c (want_inline_small_function_p): Fix formating.
2269
2270 2012-01-07  Jan Hubicka  <jh@suse.cz>
2271
2272         PR tree-optimization/51680
2273         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
2274         whose inlining reduce unit size.
2275
2276 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
2277
2278         PR bootstrap/51725
2279         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
2280         Add canonical node to containing_mem chain after the non-canonical
2281         one, even if there weren't any locs to propagate.
2282         (remove_useless_values): Keep only canonical values.
2283         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
2284         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
2285         canonicalize mem_chain elements that are not discarded.
2286
2287 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
2288
2289         PR target/47333
2290         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
2291         before emitting functions.
2292
2293         PR gcov-profile/50127
2294         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
2295         clear_aux_for_blocks.
2296
2297 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
2298
2299         PR debug/51746
2300         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
2301
2302 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
2303
2304         * c-decl.c (ext_block): Moved up.
2305         (collect_all_refs, for_each_global_decl): Take ext_block into account.
2306
2307 2012-01-06  Han Shen  <shenhan@google.com>
2308
2309         Translate built-in include paths for sysroot.
2310         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
2311         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
2312
2313         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
2314         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
2315
2316         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
2317         control whether sysroot should be prepended to gxx include dir.
2318
2319         * configure: Regenerate.
2320
2321 2012-01-06  Torvald Riegel  <triegel@redhat.com>
2322
2323         PR rtl-optimization/51771
2324         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
2325         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
2326
2327 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
2328
2329         PR tree-optimization/51315
2330         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
2331         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
2332
2333 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
2334
2335         PR target/51681
2336         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
2337         for shrp pattern.  Correctly handle and fixup shift variable.
2338         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
2339
2340 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2341
2342         PR debug/51762
2343         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
2344         note when !ACCUMULATE_OUTGOING_ARGS.
2345
2346 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
2347
2348         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
2349         condition.
2350         (extract_range_from_unary_expr_1): Avoid useless computations.
2351
2352 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2353
2354         PR rtl-optimization/51767
2355         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
2356         of jump_block and add an extra edge for degenerated asm gotos.
2357
2358         PR middle-end/51768
2359         * stmt.c (check_unique_operand_names): Don't ICE during error
2360         reporting if i is from labels chain.
2361
2362         PR middle-end/44777
2363         * profile.c (branch_prob): Split bbs that have exit edge
2364         and need a fake entry edge too.
2365
2366 2012-01-05  Jan Hubicka  <jh@suse.cz>
2367
2368         PR middle-end/49710
2369         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
2370         unlooping loops.
2371
2372 2012-01-05  Richard Guenther  <rguenther@suse.de>
2373
2374         PR lto/50490
2375         * tree-streamer-out.c (write_ts_optimization): New function.
2376         (streamer_write_tree_body): Call it.
2377         * tree-streamer-in.c (lto_input_ts_optimization): New function.
2378         (streamer_read_tree_body): Call it.
2379         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
2380
2381 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2382
2383         PR middle-end/51761
2384         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
2385         * gimplify.c (gimplify_cleanup_point_expr): Save and set
2386         in_cleanup_point_expr before gimplify_stmt call and restore it
2387         afterwards.
2388         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
2389         in_cleanup_point_expr is false.
2390
2391 2012-01-05  Richard Guenther  <rguenther@suse.de>
2392
2393         PR middle-end/51764
2394         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
2395         to c.opt.
2396         * toplev.c (process_options): Reject combining mudflap and LTO.
2397         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
2398
2399 2012-01-05  Richard Guenther  <rguenther@suse.de>
2400
2401         PR tree-optimization/51760
2402         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
2403         not VARYING.
2404         (bit_value_unop): Handle UNDEFINED operands.
2405         (bit_value_binop): Likewise.
2406
2407 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
2408
2409         * config/avr/avr.c (avr_replace_prefix): Remove.
2410         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
2411         (avr_asm_function_rodata_section): Ditto.
2412         (avr_asm_select_section): Ditto.
2413
2414 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
2415
2416         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
2417         insertion.
2418
2419 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2420
2421         PR bootstrap/51648
2422         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
2423         calls that have any non-fake successor edges.
2424
2425         PR debug/51746
2426         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
2427
2428 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
2429
2430         PR tree-optimization/51624
2431         * tree-sra.c (build_ref_for_model): When replicating a chain of
2432         COMPONENT_REFs, stop as soon as the offset would become negative.
2433
2434 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
2435
2436         PR debug/51695
2437         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
2438         in .debug_loc on the floor.
2439
2440 2012-01-04  Andrew Pinski  <apinski@cavium.com>
2441
2442         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
2443
2444 2012-01-04  Andrew Pinski  <apinski@cavium.com>
2445             Adam Nemet  <anemet@caviumnetworks.com>
2446
2447         * config/mips/mips.md (size): Add SI and DI.
2448         (SIZE): New mode attribute.
2449         (U): New code attribute.
2450         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
2451         (mips_lbux_<mode>): Delete.
2452         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
2453         (mips_lhx): Use gen_mips_lhx_extsi.
2454         (mips_lhx_<mode>): Delete.
2455         (mips_lwx): Delete.
2456         (mips_l<size>x): New expand.
2457         (mips_lwx_<mode>): Delete.
2458         (mips_l<GPR:size>x_<P:mode>): New pattern.
2459         (*mips_lw<u>x_<P:mode>_ext): Likewise.
2460         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
2461         * config/mips/mips.c (mips_lx_address_p): New function.
2462         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
2463         (dsp64): New availability predicate.
2464         (mips_builtins): Add an entry for __builtin_mips_ldx.
2465         * config/mips/mips.h (ISA_HAS_LBX): New define.
2466         (ISA_HAS_LBUX): Likewise.
2467         (ISA_HAS_LHX): Likewise.
2468         (ISA_HAS_LHUX): Likewise.
2469         (ISA_HAS_LWX): Likewise.
2470         (ISA_HAS_LWUX): Likewise.
2471         (ISA_HAS_LDX): Likewise.
2472         * doc/extend.texi (__builtin_mips_ldx): Document.
2473
2474 2012-01-04  Tristan Gingold  <gingold@adacore.com>
2475
2476         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
2477         when long pointers are used.
2478         * config.build (*-*-*vms*): Handle all OpenVMS targets.
2479         (alpha64-dec-*vms*, alpha*-dec-*vms*)
2480         (ia64-hp-*vms*): Remove.
2481         * config/vms/xm-vms64.h: Delete.
2482
2483 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2484
2485         PR middle-end/51472
2486         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
2487
2488 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2489
2490         * opts.c (finish_options): Remove duplicate sorry.
2491
2492 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2493
2494         PR middle-end/51696
2495         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
2496         correctly.
2497
2498 2012-01-04  Richard Guenther  <rguenther@suse.de>
2499
2500         PR middle-end/51750
2501         * tree.c (size_low_cst): New function.
2502         * tree.h (size_low_cst): Declare.
2503         * fold-const.c (fold_comparison): Use it to extract the low
2504         part of the POINTER_PLUS_EXPR offset.
2505
2506 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
2507
2508         Fix clearing ZERO_REG
2509         * config/avr/avr.md (cc): Add alternative "ldi".
2510         (movqi_insn): Use it in cc attribute.
2511         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
2512         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
2513         (output_reload_insisf): Use ZERO_REG to pre-clear register.
2514
2515 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2516
2517         * configure: Regenerate.
2518
2519 2012-01-04  Richard Guenther  <rguenther@suse.de>
2520
2521         PR tree-optimization/49651
2522         * tree-ssa-structalias.c (type_can_have_subvars): New function.
2523         (var_can_have_subvars): Use it.
2524         (get_constraint_for_1): Only consider subfields if there can be any.
2525
2526 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
2527
2528         PR bootstrap/51725
2529         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
2530         to its new canonical_cselib_val and the cselib_val was in
2531         first_containing_mem chain, but the canonical_cselib_val was not,
2532         add the latter into the chain.
2533         (cselib_invalidate_mem): Compare canonical_cselib_val of
2534         addr_list chain elt with v.
2535
2536         PR pch/51722
2537         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
2538         dwarf2out_undef): Allocate e.info using ggc_strdup instead
2539         of xstrdup.
2540         (output_macinfo_op): Don't ggc_strdup fd->filename.
2541         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
2542         then ggc_strdup it.  Don't free inc->info or cur->info.
2543         (output_macinfo): Don't free ref->info or file->info.
2544
2545 2012-01-03  Ira Rosen  <irar@il.ibm.com>
2546
2547         PR tree-optimization/51269
2548         * tree-vect-loop-manip.c (set_prologue_iterations): Make
2549         first_niters a pointer.
2550         (slpeel_tree_peel_loop_to_edge): Likewise.
2551         (vect_do_peeling_for_loop_bound): Update call to
2552         slpeel_tree_peel_loop_to_edge.
2553         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
2554         here.  Remove it from the parameters list.
2555         (vect_do_peeling_for_alignment): Update calls and compute
2556         wide_prolog_niters.
2557
2558 2012-01-03  Richard Guenther  <rguenther@suse.de>
2559
2560         PR tree-optimization/51070
2561         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
2562         Properly handle calls.
2563
2564 2012-01-03  Richard Guenther  <rguenther@suse.de>
2565
2566         PR tree-optimization/51692
2567         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
2568         the LHS of allocation stmts.
2569
2570 2012-01-03  Olivier Hainque  <hainque@adacore.com>
2571
2572         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
2573
2574 2012-01-03  Olivier Hainque  <hainque@adacore.com>
2575
2576         * collect2.c (main): In AIX specific computations for vector
2577         insertions, use CONST_CAST2 to cast from char ** to const char **.
2578
2579 2012-01-03  Richard Guenther  <rguenther@suse.de>
2580
2581         PR debug/51650
2582         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
2583         the context of a limbo DIE when it does not already exist.
2584
2585 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
2586
2587         PR tree-optimization/51719
2588         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
2589         but direct call is, clear direct call's lhs and don't add fallthrough
2590         edge from dcall_bb to join_bb and PHIs.
2591
2592 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2593
2594         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
2595         the instructions emitted by the pattern.
2596         ("*TDC_insn_<mode>"): Add comment.
2597
2598 2012-01-03  Richard Guenther  <rguenther@suse.de>
2599
2600         PR middle-end/51730
2601         * fold-const.c (fold_comparison): Properly canonicalize
2602         tree offset and HOST_WIDE_INT bit position.
2603
2604 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
2605
2606         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
2607         operands for extzv pattern.
2608
2609 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
2610
2611         PR bootstrap/51725
2612         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
2613         on mem_elt first.
2614
2615 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
2616
2617         * doc/invoke.texi (-flto and related options): Copy-edit.
2618
2619 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
2620
2621         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
2622
2623 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
2624
2625         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
2626         New patterns.
2627
2628 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
2629
2630         * expr.h (move_by_pieces_ninsns): Declare.
2631         * expr.c (move_by_pieces_ninsns): Make external.
2632         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
2633         (mips_store_by_pieces_p): Likewise.
2634         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
2635         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
2636         * config/mips/mips.c (mips_move_by_pieces_p): New function.
2637         (mips_store_by_pieces_p): Likewise.
2638
2639 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
2640
2641         * passes.c (register_one_dump_file): Free full_name.
2642
2643         * reload1.c (reload): Don't allocate reg_max_ref_width here.
2644         (calculate_elim_costs_all_insns): Free offsets_at and
2645         offsets_known_at at the end and clear the pointers.
2646
2647 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2648
2649         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
2650         this option introduced in r180739.
2651
2652 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2653
2654         PR target/51345
2655         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
2656         (tmake_file target=avr): Add avr/t-multilib.
2657
2658         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
2659         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
2660         * config/avr/genmultilib.awk: New file.
2661         * config/avr/t-multilib: New auto-generated file.
2662         * config/avr/multilib.h: New auto-generated file.
2663         * config/avr/t-avr (AVR_MCUS): New variable.
2664         (genopt.sh): Use it.
2665         (s-mlib): Depend on t-multilib.
2666         (t-multilib, multilib.h): New dependencies.
2667         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
2668         (MULTILIB_OPTIONS): Remove.
2669         (MULTILIB_MATCHES): Remove.
2670         (MULTILIB_DIRNAMES): Remove.
2671         (MULTILIB_EXCEPTIONS): Remove:
2672         * config/avr/genopt.sh: Don't use hard coded file name;
2673         pass AVR_MCUS from t-avr instead.
2674
2675 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2676
2677         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
2678
2679 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2680
2681         Implement light-weight DImode support.
2682         * config/avr/avr-dimode.md: New file.
2683         * config/avr/avr.md: Include it.
2684         (adjust_len): Add plus64, compare64.
2685         (HIDI): Remove code iterator.
2686         (code_stdname): New code attribute.
2687         (rotx, rotsmode): Remove DI.
2688         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
2689         as code iterator.
2690         * config/avr/avr-protos.h (avr_have_dimode): New.
2691         (avr_out_plus64, avr_out_compare64): New.
2692         * config/avr/avr.c (avr_out_compare): Handle DImode.
2693         (avr_have_dimode): New variable definition and initialization.
2694         (avr_out_compare64, avr_out_plus64): New functions.
2695         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
2696         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
2697         (avr_compare_pattern): Skip DImode comparisons.
2698
2699 2012-01-02  Revital Eres  <revital.eres@linaro.org>
2700
2701         * ddg.c (def_has_ccmode_p): New function.
2702         (add_cross_iteration_register_deps,
2703         create_ddg_dep_from_intra_loop_link): Call it.
2704
2705 2012-01-02  Richard Guenther  <rguenther@suse.de>
2706
2707         PR other/51679
2708         * invoke.texi (fassociative-math): Remove spurious paranthesis.
2709
2710 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
2711
2712         * gcc.c (process_command): Update copyright notice dates.
2713         * gcov.c (print_version): Likewise.
2714         * gcov-dump.c (print_version): Likewise.
2715         * mips-tfile.c (main): Likewise.
2716         * mips-tdump.c (main): Likewise.
2717
2718 2012-01-01  Ira Rosen  <irar@il.ibm.com>
2719
2720         PR tree-optimization/51704
2721         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
2722         a use is inside the basic block or loop before accessing its vect info.
2723
2724 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
2725
2726         PR rtl-optimization/51069
2727         * cfgloopmanip.c (remove_path): Removing path making irreducible
2728         region unconditional makes BB part of the region.
2729
2730 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
2731
2732         PR tree-optimization/51683
2733         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
2734         calls with side-effects.
2735         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
2736 \f
2737 Copyright (C) 2012 Free Software Foundation, Inc.
2738
2739 Copying and distribution of this file, with or without modification,
2740 are permitted in any medium without royalty provided the copyright
2741 notice and this notice are preserved.