2018-01-08 Richard Biener <rguenther@suse.de>
[official-gcc.git] / gcc / ChangeLog
blobb91925a712892bca6514b777cff6d758f4e2b52f
1 2018-01-08  Richard Biener  <rguenther@suse.de>
3         PR middle-end/83713
4         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
6 2018-01-08  Richard Biener  <rguenther@suse.de>
8         PR tree-optimization/83685
9         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
10         references to abnormals.
12 2018-01-08  Richard Biener  <rguenther@suse.de>
14         PR lto/83719
15         * dwarf2out.c (output_indirect_strings): Handle empty
16         skeleton_debug_str_hash.
17         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
19 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
21         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
22         (emit_store_direct): Likewise.
23         (arc_trampoline_adjust_address): Likewise.
24         (arc_asm_trampoline_template): New function.
25         (arc_initialize_trampoline): Use asm_trampoline_template.
26         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
27         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
28         * config/arc/arc.md (flush_icache): Delete pattern.
30 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
32         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
33         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
34         munaligned-access.
36 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
38         PR target/83681
39         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
40         by not USED_FOR_TARGET.
41         (make_pass_resolve_sw_modes): Likewise.
43 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
45         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
46         USED_FOR_TARGET.
48 2018-01-08  Richard Biener  <rguenther@suse.de>
50         PR middle-end/83580
51         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
53 2018-01-08  Richard Biener  <rguenther@suse.de>
55         PR middle-end/83517
56         * match.pd ((t * 2) / 2) -> t): Add missing :c.
58 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
60         PR middle-end/81897
61         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
62         basic blocks with a small number of successors.
63         (convert_control_dep_chain_into_preds): Improve handling of
64         forwarder blocks.
65         (dump_predicates): Split apart into...
66         (dump_pred_chain): ...here...
67         (dump_pred_info): ...and here.
68         (can_one_predicate_be_invalidated_p): Add debugging printfs.
69         (can_chain_union_be_invalidated_p): Improve check for invalidation
70         of paths.
71         (uninit_uses_cannot_happen): Avoid unnecessary if
72         convert_control_dep_chain_into_preds yielded nothing.
74 2018-01-06  Martin Sebor  <msebor@redhat.com>
76         PR tree-optimization/83640
77         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
78         subtracting negative offset from size.
79         (builtin_access::overlap): Adjust offset bounds of the access to fall
80         within the size of the object if possible.
82 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
84         PR rtl-optimization/83699
85         * expmed.c (extract_bit_field_1): Restrict the vector usage of
86         extract_bit_field_as_subreg to cases in which the extracted
87         value is also a vector.
89         * lra-constraints.c (process_alt_operands): Test for the equivalence
90         substitutions when detecting a possible reload cycle.
92 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
94         PR debug/83480
95         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
96         by default if flag_selective_schedling{,2}.  Formatting fixes.
98         PR rtl-optimization/83682
99         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
100         if it has non-VECTOR_MODE element mode.
101         (vec_duplicate_p): Likewise.
103         PR middle-end/83694
104         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
105         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
107 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
109         PR target/83604
110         * config/i386/i386-builtin.def
111         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
112         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
113         Require also OPTION_MASK_ISA_AVX512F in addition to
114         OPTION_MASK_ISA_GFNI.
115         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
116         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
117         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
118         to OPTION_MASK_ISA_GFNI.
119         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
120         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
121         OPTION_MASK_ISA_AVX512BW.
122         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
123         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
124         addition to OPTION_MASK_ISA_GFNI.
125         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
126         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
127         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
128         to OPTION_MASK_ISA_GFNI.
129         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
130         a requirement for all ISAs rather than any of them with a few
131         exceptions.
132         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
133         processing.
134         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
135         bitmasks to be enabled with 3 exceptions, instead of requiring any
136         enabled ISA with lots of exceptions.
137         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
138         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
139         Change avx512bw in isa attribute to avx512f.
140         * config/i386/sgxintrin.h: Add license boilerplate.
141         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
142         to __AVX512F__ and __AVX512VL to __AVX512VL__.
143         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
144         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
145         defined.
146         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
147         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
148         temporarily sse2 rather than sse if not enabled already.
150         PR target/83604
151         * config/i386/sse.md (VI248_VLBW): Rename to ...
152         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
153         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
154         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
155         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
156         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
157         mode iterator instead of VI248_VLBW.
159 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
161         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
162         (record_modified): Skip clobbers; add debug output.
163         (param_change_prob): Use sreal frequencies.
165 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
167         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
168         punt for user-aligned variables.
170 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
172         * tree-chrec.c (chrec_contains_symbols): Return true for
173         POLY_INT_CST.
175 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
177         PR target/82439
178         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
179         of (x|y) == x for BICS pattern.
181 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
183         PR tree-optimization/83605
184         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
185         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
186         can throw.
188 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
190         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
191         * config/epiphany/rtems.h: New file.
193 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
194             Uros Bizjak  <ubizjak@gmail.com>
196         PR target/83554
197         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
198         QIreg_operand instead of register_operand predicate.
199         * config/i386/i386.c (ix86_rop_should_change_byte_p,
200         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
201         comments instead of -fmitigate[-_]rop.
203 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
205         PR bootstrap/81926
206         * cgraphunit.c (symbol_table::compile): Switch to text_section
207         before calling assembly_start debug hook.
208         * run-rtl-passes.c (run_rtl_passes): Likewise.
209         Include output.h.
211 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
213         * tree-vrp.c (extract_range_from_binary_expr_1): Check
214         range_int_cst_p rather than !symbolic_range_p before calling
215         extract_range_from_multiplicative_op_1.
217 2017-01-04  Jeff Law  <law@redhat.com>
219         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
220         redundant test in assertion.
222 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
224         * doc/rtl.texi: Document machine_mode wrapper classes.
226 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
228         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
229         using tree_to_uhwi.
231 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
233         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
234         the VEC_PERM_EXPR fold to fail.
236 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
238         PR debug/83585
239         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
240         to switched_sections.
242 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
244         PR target/83680
245         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
246         test for d.testing.
248 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
250         PR target/83387
251         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
252         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
254 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
256         PR debug/83666
257         * cfgexpand.c (expand_dbeug_expr) <case BIT_FIELD_REF>: Punt if mode
258         is BLKmode and bitpos not zero or mode change is needed.
260 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
262         PR target/83675
263         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
264         TARGET_VIS2.
266 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
268         PR target/83628
269         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
270         instead of MULT rtx.  Update all corresponding splitters.
271         (*saddl_se): Ditto.
272         (*ssub<modesuffix>): Ditto.
273         (*ssubl_se): Ditto.
274         (*cmp_sadd_di): Update split patterns.
275         (*cmp_sadd_si): Ditto.
276         (*cmp_sadd_sidi): Ditto.
277         (*cmp_ssub_di): Ditto.
278         (*cmp_ssub_si): Ditto.
279         (*cmp_ssub_sidi): Ditto.
280         * config/alpha/predicates.md (const23_operand): New predicate.
281         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
282         Look for ASHIFT, not MULT inner operand.
283         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
285 2018-01-04  Martin Liska  <mliska@suse.cz>
287         PR gcov-profile/83669
288         * gcov.c (output_intermediate_file): Add version to intermediate
289         gcov file.
290         * doc/gcov.texi: Document new field 'version' in intermediate
291         file format. Fix location of '-k' option of gcov command.
293 2018-01-04  Martin Liska  <mliska@suse.cz>
295         PR ipa/82352
296         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
298 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
300         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
302 2018-01-03  Martin Sebor  <msebor@redhat.com>
304         PR tree-optimization/83655
305         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
306         checking calls with invalid arguments.
308 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
310         * tree-vect-stmts.c (vect_get_store_rhs): New function.
311         (vectorizable_mask_load_store): Delete.
312         (vectorizable_call): Return false for masked loads and stores.
313         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
314         instead of gimple_assign_rhs1.
315         (vectorizable_load): Handle IFN_MASK_LOAD.
316         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
318 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
320         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
321         split out from..,
322         (vectorizable_mask_load_store): ...here.
323         (vectorizable_load): ...and here.
325 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
327         * tree-vect-stmts.c (vect_build_all_ones_mask)
328         (vect_build_zero_merge_argument): New functions, split out from...
329         (vectorizable_load): ...here.
331 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
333         * tree-vect-stmts.c (vect_check_store_rhs): New function,
334         split out from...
335         (vectorizable_mask_load_store): ...here.
336         (vectorizable_store): ...and here.
338 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
340         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
341         split out from...
342         (vectorizable_mask_load_store): ...here.
344 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
346         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
347         (vect_model_store_cost): Take a vec_load_store_type instead of a
348         vect_def_type.
349         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
350         (vect_model_store_cost): Take a vec_load_store_type instead of a
351         vect_def_type.
352         (vectorizable_mask_load_store): Update accordingly.
353         (vectorizable_store): Likewise.
354         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
356 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
358         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
359         IFN_MASK_LOAD calls here rather than...
360         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
362 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
363             Alan Hayward  <alan.hayward@arm.com>
364             David Sherwood  <david.sherwood@arm.com>
366         * expmed.c (extract_bit_field_1): For vector extracts,
367         fall back to extract_bit_field_as_subreg if vec_extract
368         isn't available.
370 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
371             Alan Hayward  <alan.hayward@arm.com>
372             David Sherwood  <david.sherwood@arm.com>
374         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
375         they are variable or constant sized.
376         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
377         slots for constant-sized data.
379 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
380             Alan Hayward  <alan.hayward@arm.com>
381             David Sherwood  <david.sherwood@arm.com>
383         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
384         handling COND_EXPRs with boolean comparisons, try to find a better
385         basis for the mask type than the boolean itself.
387 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
389         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
390         is calculated and how it can be overridden.
391         * genmodes.c (max_bitsize_mode_any_mode): New variable.
392         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
393         if defined.
394         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
395         if nonzero.
397 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
398             Alan Hayward  <alan.hayward@arm.com>
399             David Sherwood  <david.sherwood@arm.com>
401         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
402         Remove the mode argument.
403         (aarch64_simd_valid_immediate): Remove the mode and inverse
404         arguments.
405         * config/aarch64/iterators.md (bitsize): New iterator.
406         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
407         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
408         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
409         aarch64_simd_valid_immediate.
410         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
411         (aarch64_reg_or_bic_imm): Likewise.
412         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
413         with an insn_type enum and msl with a modifier_type enum.
414         Replace element_width with a scalar_mode.  Change the shift
415         to unsigned int.  Add constructors for scalar_float_mode and
416         scalar_int_mode elements.
417         (aarch64_vect_float_const_representable_p): Delete.
418         (aarch64_can_const_movi_rtx_p)
419         (aarch64_simd_scalar_immediate_valid_for_move)
420         (aarch64_simd_make_constant): Update call to
421         aarch64_simd_valid_immediate.
422         (aarch64_advsimd_valid_immediate_hs): New function.
423         (aarch64_advsimd_valid_immediate): Likewise.
424         (aarch64_simd_valid_immediate): Remove mode and inverse
425         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
426         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
427         and aarch64_float_const_representable_p on the result.
428         (aarch64_output_simd_mov_immediate): Remove mode argument.
429         Update call to aarch64_simd_valid_immediate and use of
430         simd_immediate_info.
431         (aarch64_output_scalar_simd_mov_immediate): Update call
432         accordingly.
434 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
435             Alan Hayward  <alan.hayward@arm.com>
436             David Sherwood  <david.sherwood@arm.com>
438         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
439         (mode_nunits): Likewise CONST_MODE_NUNITS.
440         * machmode.def (ADJUST_NUNITS): Document.
441         * genmodes.c (mode_data::need_nunits_adj): New field.
442         (blank_mode): Update accordingly.
443         (adj_nunits): New variable.
444         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
445         parameter.
446         (emit_mode_size_inline): Set need_bytesize_adj for all modes
447         listed in adj_nunits.
448         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
449         listed in adj_nunits.  Don't emit case statements for such modes.
450         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
451         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
452         nothing if adj_nunits is nonnull.
453         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
454         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
455         (emit_mode_fbit): Update use of print_maybe_const_decl.
456         (emit_move_size): Likewise.  Treat the array as non-const
457         if adj_nunits.
458         (emit_mode_adjustments): Handle adj_nunits.
460 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
462         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
463         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
464         (VECTOR_MODES): Use it.
465         (make_vector_modes): Take the prefix as an argument.
467 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
468             Alan Hayward  <alan.hayward@arm.com>
469             David Sherwood  <david.sherwood@arm.com>
471         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
472         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
473         for MODE_VECTOR_BOOL.
474         * machmode.def (VECTOR_BOOL_MODE): Document.
475         * genmodes.c (VECTOR_BOOL_MODE): New macro.
476         (make_vector_bool_mode): New function.
477         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
478         MODE_VECTOR_BOOL.
479         * lto-streamer-in.c (lto_input_mode_table): Likewise.
480         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
481         Likewise.
482         * stor-layout.c (int_mode_for_mode): Likewise.
483         * tree.c (build_vector_type_for_mode): Likewise.
484         * varasm.c (output_constant_pool_2): Likewise.
485         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
486         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
487         for MODE_VECTOR_BOOL.
488         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
489         of mode class checks.
490         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
491         instead of a list of mode class checks.
492         (expand_vector_scalar_condition): Likewise.
493         (type_for_widest_vector_mode): Handle BImode as an inner mode.
495 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
496             Alan Hayward  <alan.hayward@arm.com>
497             David Sherwood  <david.sherwood@arm.com>
499         * machmode.h (mode_size): Change from unsigned short to
500         poly_uint16_pod.
501         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
502         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
503         or if measurement_type is not polynomial.
504         (fixed_size_mode::includes_p): Check for constant-sized modes.
505         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
506         return a poly_uint16 rather than an unsigned short.
507         (emit_mode_size): Change the type of mode_size from unsigned short
508         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
509         (emit_mode_adjustments): Cope with polynomial vector sizes.
510         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
511         for GET_MODE_SIZE.
512         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
513         for GET_MODE_SIZE.
514         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
515         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
516         * caller-save.c (setup_save_areas): Likewise.
517         (replace_reg_with_saved_mem): Likewise.
518         * calls.c (emit_library_call_value_1): Likewise.
519         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
520         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
521         (gen_lowpart_for_combine): Likewise.
522         * convert.c (convert_to_integer_1): Likewise.
523         * cse.c (equiv_constant, cse_insn): Likewise.
524         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
525         (cselib_subst_to_values): Likewise.
526         * dce.c (word_dce_process_block): Likewise.
527         * df-problems.c (df_word_lr_mark_ref): Likewise.
528         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
529         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
530         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
531         (rtl_for_decl_location): Likewise.
532         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
533         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
534         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
535         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
536         (expand_expr_real_1): Likewise.
537         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
538         (pad_below): Likewise.
539         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
540         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
541         * ira.c (get_subreg_tracking_sizes): Likewise.
542         * ira-build.c (ira_create_allocno_objects): Likewise.
543         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
544         (ira_sort_regnos_for_alter_reg): Likewise.
545         * ira-costs.c (record_operand_costs): Likewise.
546         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
547         (resolve_simple_move): Likewise.
548         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
549         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
550         (lra_constraints): Likewise.
551         (CONST_POOL_OK_P): Reject variable-sized modes.
552         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
553         (add_pseudo_to_slot, lra_spill): Likewise.
554         * omp-low.c (omp_clause_aligned_alignment): Likewise.
555         * optabs-query.c (get_best_extraction_insn): Likewise.
556         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
557         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
558         (expand_mult_highpart, valid_multiword_target_p): Likewise.
559         * recog.c (offsettable_address_addr_space_p): Likewise.
560         * regcprop.c (maybe_mode_change): Likewise.
561         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
562         * regrename.c (build_def_use): Likewise.
563         * regstat.c (dump_reg_info): Likewise.
564         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
565         (find_reloads, find_reloads_subreg_address): Likewise.
566         * reload1.c (eliminate_regs_1): Likewise.
567         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
568         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
569         (simplify_binary_operation_1, simplify_subreg): Likewise.
570         * targhooks.c (default_function_arg_padding): Likewise.
571         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
572         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
573         (verify_gimple_assign_ternary): Likewise.
574         * tree-inline.c (estimate_move_cost): Likewise.
575         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
576         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
577         (get_address_cost_ainc): Likewise.
578         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
579         (vect_supportable_dr_alignment): Likewise.
580         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
581         (vectorizable_reduction): Likewise.
582         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
583         (vectorizable_operation, vectorizable_load): Likewise.
584         * tree.c (build_same_sized_truth_vector_type): Likewise.
585         * valtrack.c (cleanup_auto_inc_dec): Likewise.
586         * var-tracking.c (emit_note_insn_var_location): Likewise.
587         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
588         (ADDR_VEC_ALIGN): Likewise.
590 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
591             Alan Hayward  <alan.hayward@arm.com>
592             David Sherwood  <david.sherwood@arm.com>
594         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
595         unsigned short.
596         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
597         or if measurement_type is polynomial.
598         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
599         * combine.c (make_extraction): Likewise.
600         * dse.c (find_shift_sequence): Likewise.
601         * dwarf2out.c (mem_loc_descriptor): Likewise.
602         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
603         (extract_bit_field, extract_low_bits): Likewise.
604         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
605         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
606         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
607         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
608         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
609         * reload.c (find_reloads): Likewise.
610         * reload1.c (alter_reg): Likewise.
611         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
612         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
613         * tree-if-conv.c (predicate_mem_writes): Likewise.
614         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
615         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
616         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
617         * valtrack.c (dead_debug_insert_temp): Likewise.
618         * varasm.c (mergeable_constant_section): Likewise.
619         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
621 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
622             Alan Hayward  <alan.hayward@arm.com>
623             David Sherwood  <david.sherwood@arm.com>
625         * expr.c (expand_assignment): Cope with polynomial mode sizes
626         when assigning to a CONCAT.
628 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
629             Alan Hayward  <alan.hayward@arm.com>
630             David Sherwood  <david.sherwood@arm.com>
632         * machmode.h (mode_precision): Change from unsigned short to
633         poly_uint16_pod.
634         (mode_to_precision): Return a poly_uint16 rather than an unsigned
635         short.
636         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
637         or if measurement_type is not polynomial.
638         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
639         in which the mode is already known to be a scalar_int_mode.
640         * genmodes.c (emit_mode_precision): Change the type of mode_precision
641         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
642         initializer.
643         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
644         for GET_MODE_PRECISION.
645         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
646         for GET_MODE_PRECISION.
647         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
648         as polynomial.
649         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
650         (expand_field_assignment, make_extraction): Likewise.
651         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
652         (get_last_value): Likewise.
653         * convert.c (convert_to_integer_1): Likewise.
654         * cse.c (cse_insn): Likewise.
655         * expr.c (expand_expr_real_1): Likewise.
656         * lra-constraints.c (simplify_operand_subreg): Likewise.
657         * optabs-query.c (can_atomic_load_p): Likewise.
658         * optabs.c (expand_atomic_load): Likewise.
659         (expand_atomic_store): Likewise.
660         * ree.c (combine_reaching_defs): Likewise.
661         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
662         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
663         * tree.h (type_has_mode_precision_p): Likewise.
664         * ubsan.c (instrument_si_overflow): Likewise.
666 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
667             Alan Hayward  <alan.hayward@arm.com>
668             David Sherwood  <david.sherwood@arm.com>
670         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
671         polynomial numbers of units.
672         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
673         (valid_vector_subparts_p): New function.
674         (build_vector_type): Remove temporary shim and take the number
675         of units as a poly_uint64 rather than an int.
676         (build_opaque_vector_type): Take the number of units as a
677         poly_uint64 rather than an int.
678         * tree.c (build_vector_from_ctor): Handle polynomial
679         TYPE_VECTOR_SUBPARTS.
680         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
681         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
682         (build_vector_from_val): If the number of units is variable,
683         use build_vec_duplicate_cst for constant operands and
684         VEC_DUPLICATE_EXPR otherwise.
685         (make_vector_type): Remove temporary is_constant ().
686         (build_vector_type, build_opaque_vector_type): Take the number of
687         units as a poly_uint64 rather than an int.
688         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
689         VECTOR_CST_NELTS.
690         * cfgexpand.c (expand_debug_expr): Likewise.
691         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
692         (store_constructor, expand_expr_real_1): Likewise.
693         (const_scalar_mask_from_tree): Likewise.
694         * fold-const-call.c (fold_const_reduction): Likewise.
695         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
696         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
697         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
698         (fold_relational_const): Likewise.
699         (native_interpret_vector): Likewise.  Change the size from an
700         int to an unsigned int.
701         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
702         TYPE_VECTOR_SUBPARTS.
703         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
704         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
705         duplicating a non-constant operand into a variable-length vector.
706         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
707         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
708         * ipa-icf.c (sem_variable::equals): Likewise.
709         * match.pd: Likewise.
710         * omp-simd-clone.c (simd_clone_subparts): Likewise.
711         * print-tree.c (print_node): Likewise.
712         * stor-layout.c (layout_type): Likewise.
713         * targhooks.c (default_builtin_vectorization_cost): Likewise.
714         * tree-cfg.c (verify_gimple_comparison): Likewise.
715         (verify_gimple_assign_binary): Likewise.
716         (verify_gimple_assign_ternary): Likewise.
717         (verify_gimple_assign_single): Likewise.
718         * tree-pretty-print.c (dump_generic_node): Likewise.
719         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
720         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
721         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
722         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
723         (vect_shift_permute_load_chain): Likewise.
724         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
725         (expand_vector_condition, optimize_vector_constructor): Likewise.
726         (lower_vec_perm, get_compute_type): Likewise.
727         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
728         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
729         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
730         (vect_recog_mask_conversion_pattern): Likewise.
731         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
732         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
733         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
734         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
735         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
736         (vectorizable_shift, vectorizable_operation, vectorizable_store)
737         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
738         (supportable_widening_operation): Likewise.
739         (supportable_narrowing_operation): Likewise.
740         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
741         Likewise.
742         * varasm.c (output_constant): Likewise.
744 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
745             Alan Hayward  <alan.hayward@arm.com>
746             David Sherwood  <david.sherwood@arm.com>
748         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
749         so that both the length == 3 and length != 3 cases set up their
750         own permute vectors.  Add comments explaining why we know the
751         number of elements is constant.
752         (vect_permute_load_chain): Likewise.
754 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
755             Alan Hayward  <alan.hayward@arm.com>
756             David Sherwood  <david.sherwood@arm.com>
758         * machmode.h (mode_nunits): Change from unsigned char to
759         poly_uint16_pod.
760         (ONLY_FIXED_SIZE_MODES): New macro.
761         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
762         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
763         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
764         New typedefs.
765         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
766         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
767         or if measurement_type is not polynomial.
768         * genmodes.c (ZERO_COEFFS): New macro.
769         (emit_mode_nunits_inline): Make mode_nunits_inline return a
770         poly_uint16.
771         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
772         Use ZERO_COEFFS when emitting initializers.
773         * data-streamer.h (bp_pack_poly_value): New function.
774         (bp_unpack_poly_value): Likewise.
775         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
776         for GET_MODE_NUNITS.
777         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
778         for GET_MODE_NUNITS.
779         * tree.c (make_vector_type): Remove temporary shim and make
780         the real function take the number of units as a poly_uint64
781         rather than an int.
782         (build_vector_type_for_mode): Handle polynomial nunits.
783         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
784         * emit-rtl.c (const_vec_series_p_1): Likewise.
785         (gen_rtx_CONST_VECTOR): Likewise.
786         * fold-const.c (test_vec_duplicate_folding): Likewise.
787         * genrecog.c (validate_pattern): Likewise.
788         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
789         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
790         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
791         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
792         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
793         * rtlanal.c (subreg_get_info): Likewise.
794         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
795         (vect_grouped_load_supported): Likewise.
796         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
797         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
798         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
799         (simplify_const_unary_operation, simplify_binary_operation_1)
800         (simplify_const_binary_operation, simplify_ternary_operation)
801         (test_vector_ops_duplicate, test_vector_ops): Likewise.
802         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
803         instead of CONST_VECTOR_NUNITS.
804         * varasm.c (output_constant_pool_2): Likewise.
805         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
806         explicit-encoded elements in the XVEC for variable-length vectors.
808 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
810         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
812 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
813             Alan Hayward  <alan.hayward@arm.com>
814             David Sherwood  <david.sherwood@arm.com>
816         * coretypes.h (fixed_size_mode): Declare.
817         (fixed_size_mode_pod): New typedef.
818         * builtins.h (target_builtins::x_apply_args_mode)
819         (target_builtins::x_apply_result_mode): Change type to
820         fixed_size_mode_pod.
821         * builtins.c (apply_args_size, apply_result_size, result_vector)
822         (expand_builtin_apply_args_1, expand_builtin_apply)
823         (expand_builtin_return): Update accordingly.
825 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
827         * cse.c (hash_rtx_cb): Hash only the encoded elements.
828         * cselib.c (cselib_hash_rtx): Likewise.
829         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
830         CONST_VECTOR encoding.
832 2017-01-03  Jakub Jelinek  <jakub@redhat.com>
833             Jeff Law  <law@redhat.com>
835         PR target/83641
836         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
837         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
838         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
839         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
841         PR target/83641
842         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
843         explicitly probe *sp in a noreturn function if there were any callee
844         register saves or frame pointer is needed.
846 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
848         PR debug/83621
849         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
850         BLKmode for ternary, binary or unary expressions.
852         PR debug/83645
853         * var-tracking.c (delete_vta_debug_insn): New inline function.
854         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
855         insns from get_insns () to NULL instead of each bb separately.
856         Use delete_vta_debug_insn.  No longer static.
857         (vt_debug_insns_local, variable_tracking_main_1): Adjust
858         delete_vta_debug_insns callers.
859         * rtl.h (delete_vta_debug_insns): Declare.
860         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
861         instead of variable_tracking_main.
863 2018-01-03  Martin Sebor  <msebor@redhat.com>
865         PR tree-optimization/83603
866         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
867         arguments past the endof the argument list in functions declared
868         without a prototype.
869         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
870         Avoid checking when arguments are null.
872 2018-01-03  Martin Sebor  <msebor@redhat.com>
874         PR c/83559
875         * doc/extend.texi (attribute const): Fix a typo.
876         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
877         issuing -Wsuggest-attribute for void functions.
879 2018-01-03  Martin Sebor  <msebor@redhat.com>
881         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
882         offset_int::from instead of wide_int::to_shwi.
883         (maybe_diag_overlap): Remove assertion.
884         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
885         * gimple-ssa-sprintf.c (format_directive): Same.
886         (parse_directive): Same.
887         (sprintf_dom_walker::compute_format_length): Same.
888         (try_substitute_return_value): Same.
890 2017-01-03  Jeff Law  <law@redhat.com>
892         PR middle-end/83654
893         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
894         non-constant residual for zero at runtime and avoid probing in
895         that case.  Reorganize code for trailing problem to mirror handling
896         of the residual.
898 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
900         PR tree-optimization/83501
901         * tree-ssa-strlen.c (get_string_cst): New.
902         (handle_char_store): Call get_string_cst.
904 2018-01-03  Martin Liska  <mliska@suse.cz>
906         PR tree-optimization/83593
907         * tree-ssa-strlen.c: Include tree-cfg.h.
908         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
909         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
910         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
911         to false.
912         (strlen_dom_walker::before_dom_children): Call
913         gimple_purge_dead_eh_edges. Dump tranformation with details
914         dump flags.
915         (strlen_dom_walker::before_dom_children): Update call by adding
916         new argument cleanup_eh.
917         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
919 2018-01-03  Martin Liska  <mliska@suse.cz>
921         PR ipa/83549
922         * cif-code.def (VARIADIC_THUNK): New enum value.
923         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
924         thunks.
926 2018-01-03  Jan Beulich  <jbeulich@suse.com>
928         * sse.md (mov<mode>_internal): Tighten condition for when to use
929         vmovdqu<ssescalarsize> for TI and OI modes.
931 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
933         Update copyright years.
935 2018-01-03  Martin Liska  <mliska@suse.cz>
937         PR ipa/83594
938         * ipa-visibility.c (function_and_variable_visibility): Skip
939         functions with noipa attribure.
941 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
943         * gcc.c (process_command): Update copyright notice dates.
944         * gcov-dump.c (print_version): Ditto.
945         * gcov.c (print_version): Ditto.
946         * gcov-tool.c (print_version): Ditto.
947         * gengtype.c (create_file): Ditto.
948         * doc/cpp.texi: Bump @copying's copyright year.
949         * doc/cppinternals.texi: Ditto.
950         * doc/gcc.texi: Ditto.
951         * doc/gccint.texi: Ditto.
952         * doc/gcov.texi: Ditto.
953         * doc/install.texi: Ditto.
954         * doc/invoke.texi: Ditto.
956 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
958         * vector-builder.h (vector_builder::m_full_nelts): Change from
959         unsigned int to poly_uint64.
960         (vector_builder::full_nelts): Update prototype accordingly.
961         (vector_builder::new_vector): Likewise.
962         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
963         (vector_builder::operator ==): Likewise.
964         (vector_builder::finalize): Likewise.
965         * int-vector-builder.h (int_vector_builder::int_vector_builder):
966         Take the number of elements as a poly_uint64 rather than an
967         unsigned int.
968         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
969         from unsigned int to poly_uint64.
970         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
971         (vec_perm_indices::new_vector): Likewise.
972         (vec_perm_indices::length): Likewise.
973         (vec_perm_indices::nelts_per_input): Likewise.
974         (vec_perm_indices::input_nelts): Likewise.
975         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
976         number of elements per input as a poly_uint64 rather than an
977         unsigned int.  Use the original encoding for variable-length
978         vectors, rather than clamping each individual element.
979         For the second and subsequent elements in each pattern,
980         clamp the step and base before clamping their sum.
981         (vec_perm_indices::series_p): Handle polynomial element counts.
982         (vec_perm_indices::all_in_range_p): Likewise.
983         (vec_perm_indices_to_tree): Likewise.
984         (vec_perm_indices_to_rtx): Likewise.
985         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
986         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
987         (tree_vector_builder::new_binary_operation): Handle polynomial
988         element counts.  Return false if we need to know the number
989         of elements at compile time.
990         * fold-const.c (fold_vec_perm): Punt if the number of elements
991         isn't known at compile time.
993 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
995         * vec-perm-indices.h (vec_perm_builder): Change element type
996         from HOST_WIDE_INT to poly_int64.
997         (vec_perm_indices::element_type): Update accordingly.
998         (vec_perm_indices::clamp): Handle polynomial element_types.
999         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
1000         (vec_perm_indices::all_in_range_p): Likewise.
1001         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
1002         than shwi trees.
1003         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
1004         polynomial vec_perm_indices element types.
1005         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
1006         * fold-const.c (fold_vec_perm): Likewise.
1007         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
1008         * tree-vect-generic.c (lower_vec_perm): Likewise.
1009         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
1010         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
1011         element type to HOST_WIDE_INT.
1013 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1014             Alan Hayward  <alan.hayward@arm.com>
1015             David Sherwood  <david.sherwood@arm.com>
1017         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
1018         rather than an int.  Use plus_constant.
1019         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
1020         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
1022 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1023             Alan Hayward  <alan.hayward@arm.com>
1024             David Sherwood  <david.sherwood@arm.com>
1026         * calls.c (emit_call_1, expand_call): Change struct_value_size from
1027         a HOST_WIDE_INT to a poly_int64.
1029 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1030             Alan Hayward  <alan.hayward@arm.com>
1031             David Sherwood  <david.sherwood@arm.com>
1033         * calls.c (load_register_parameters): Cope with polynomial
1034         mode sizes.  Require a constant size for BLKmode parameters
1035         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
1036         forces a parameter to be padded at the lsb end in order to
1037         fill a complete number of words, require the parameter size
1038         to be ordered wrt UNITS_PER_WORD.
1040 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1041             Alan Hayward  <alan.hayward@arm.com>
1042             David Sherwood  <david.sherwood@arm.com>
1044         * reload1.c (spill_stack_slot_width): Change element type
1045         from unsigned int to poly_uint64_pod.
1046         (alter_reg): Treat mode sizes as polynomial.
1048 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1049             Alan Hayward  <alan.hayward@arm.com>
1050             David Sherwood  <david.sherwood@arm.com>
1052         * reload.c (complex_word_subreg_p): New function.
1053         (reload_inner_reg_of_subreg, push_reload): Use it.
1055 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1056             Alan Hayward  <alan.hayward@arm.com>
1057             David Sherwood  <david.sherwood@arm.com>
1059         * lra-constraints.c (process_alt_operands): Reject matched
1060         operands whose sizes aren't ordered.
1061         (match_reload): Refer to this check here.
1063 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1064             Alan Hayward  <alan.hayward@arm.com>
1065             David Sherwood  <david.sherwood@arm.com>
1067         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
1068         that the mode size is in the set {1, 2, 4, 8, 16}.
1070 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1071             Alan Hayward  <alan.hayward@arm.com>
1072             David Sherwood  <david.sherwood@arm.com>
1074         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
1075         Use plus_constant instead of gen_rtx_PLUS.
1077 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1078             Alan Hayward  <alan.hayward@arm.com>
1079             David Sherwood  <david.sherwood@arm.com>
1081         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
1082         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
1083         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
1084         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
1085         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
1086         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
1087         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
1088         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
1089         * config/i386/i386.c (ix86_push_rounding): ...this new function.
1090         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
1091         a poly_int64.
1092         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
1093         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
1094         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
1095         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
1096         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
1097         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
1098         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
1099         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
1100         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
1101         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
1102         function.
1103         * expr.c (emit_move_resolve_push): Treat the input and result
1104         of PUSH_ROUNDING as a poly_int64.
1105         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
1106         (emit_push_insn): Likewise.
1107         * lra-eliminations.c (mark_not_eliminable): Likewise.
1108         * recog.c (push_operand): Likewise.
1109         * reload1.c (elimination_effects): Likewise.
1110         * rtlanal.c (nonzero_bits1): Likewise.
1111         * calls.c (store_one_arg): Likewise.  Require the padding to be
1112         known at compile time.
1114 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1115             Alan Hayward  <alan.hayward@arm.com>
1116             David Sherwood  <david.sherwood@arm.com>
1118         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
1119         Use plus_constant instead of gen_rtx_PLUS.
1121 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1122             Alan Hayward  <alan.hayward@arm.com>
1123             David Sherwood  <david.sherwood@arm.com>
1125         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
1126         rather than an int.
1128 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1129             Alan Hayward  <alan.hayward@arm.com>
1130             David Sherwood  <david.sherwood@arm.com>
1132         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
1133         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
1134         via stack temporaries.  Treat the mode size as polynomial too.
1136 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1137             Alan Hayward  <alan.hayward@arm.com>
1138             David Sherwood  <david.sherwood@arm.com>
1140         * expr.c (expand_expr_real_2): When handling conversions involving
1141         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
1142         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
1143         as a poly_uint64 too.
1145 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1146             Alan Hayward  <alan.hayward@arm.com>
1147             David Sherwood  <david.sherwood@arm.com>
1149         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
1151 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1152             Alan Hayward  <alan.hayward@arm.com>
1153             David Sherwood  <david.sherwood@arm.com>
1155         * combine.c (can_change_dest_mode): Handle polynomial
1156         REGMODE_NATURAL_SIZE.
1157         * expmed.c (store_bit_field_1): Likewise.
1158         * expr.c (store_constructor): Likewise.
1159         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
1160         and polynomial REGMODE_NATURAL_SIZE.
1161         (gen_lowpart_common): Likewise.
1162         * reginfo.c (record_subregs_of_mode): Likewise.
1163         * rtlanal.c (read_modify_subreg_p): Likewise.
1165 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1166             Alan Hayward  <alan.hayward@arm.com>
1167             David Sherwood  <david.sherwood@arm.com>
1169         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
1170         numbers of elements.
1172 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1173             Alan Hayward  <alan.hayward@arm.com>
1174             David Sherwood  <david.sherwood@arm.com>
1176         * match.pd: Cope with polynomial numbers of vector elements.
1178 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1179             Alan Hayward  <alan.hayward@arm.com>
1180             David Sherwood  <david.sherwood@arm.com>
1182         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
1183         in a POINTER_PLUS_EXPR.
1185 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1186             Alan Hayward  <alan.hayward@arm.com>
1187             David Sherwood  <david.sherwood@arm.com>
1189         * omp-simd-clone.c (simd_clone_subparts): New function.
1190         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
1191         (ipa_simd_modify_function_body): Likewise.
1193 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1194             Alan Hayward  <alan.hayward@arm.com>
1195             David Sherwood  <david.sherwood@arm.com>
1197         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
1198         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
1199         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
1200         (expand_vector_condition, vector_element): Likewise.
1201         (subparts_gt): New function.
1202         (get_compute_type): Use subparts_gt.
1203         (count_type_subparts): Delete.
1204         (expand_vector_operations_1): Use subparts_gt instead of
1205         count_type_subparts.
1207 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1208             Alan Hayward  <alan.hayward@arm.com>
1209             David Sherwood  <david.sherwood@arm.com>
1211         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
1212         (vect_compile_time_alias): ...this new function.  Do the calculation
1213         on poly_ints rather than trees.
1214         (vect_prune_runtime_alias_test_list): Update call accordingly.
1216 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1217             Alan Hayward  <alan.hayward@arm.com>
1218             David Sherwood  <david.sherwood@arm.com>
1220         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
1221         numbers of units.
1222         (vect_schedule_slp_instance): Likewise.
1224 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1225             Alan Hayward  <alan.hayward@arm.com>
1226             David Sherwood  <david.sherwood@arm.com>
1228         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
1229         constant and extern definitions for variable-length vectors.
1230         (vect_get_constant_vectors): Note that the number of units
1231         is known to be constant.
1233 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1234             Alan Hayward  <alan.hayward@arm.com>
1235             David Sherwood  <david.sherwood@arm.com>
1237         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
1238         of units as polynomial.  Choose between WIDE and NARROW based
1239         on multiple_p.
1241 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1242             Alan Hayward  <alan.hayward@arm.com>
1243             David Sherwood  <david.sherwood@arm.com>
1245         * tree-vect-stmts.c (simd_clone_subparts): New function.
1246         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
1248 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1249             Alan Hayward  <alan.hayward@arm.com>
1250             David Sherwood  <david.sherwood@arm.com>
1252         * tree-vect-stmts.c (vectorizable_call): Treat the number of
1253         vectors as polynomial.  Use build_index_vector for
1254         IFN_GOMP_SIMD_LANE.
1256 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1257             Alan Hayward  <alan.hayward@arm.com>
1258             David Sherwood  <david.sherwood@arm.com>
1260         * tree-vect-stmts.c (get_load_store_type): Treat the number of
1261         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
1262         for variable-length vectors.
1263         (vectorizable_mask_load_store): Treat the number of units as
1264         polynomial, asserting that it is constant if the condition has
1265         already been enforced.
1266         (vectorizable_store, vectorizable_load): Likewise.
1268 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1269             Alan Hayward  <alan.hayward@arm.com>
1270             David Sherwood  <david.sherwood@arm.com>
1272         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
1273         of units as polynomial.  Punt if we can't tell at compile time
1274         which vector contains the final result.
1276 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1277             Alan Hayward  <alan.hayward@arm.com>
1278             David Sherwood  <david.sherwood@arm.com>
1280         * tree-vect-loop.c (vectorizable_induction): Treat the number
1281         of units as polynomial.  Punt on SLP inductions.  Use an integer
1282         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
1283         cast of such a series for variable-length floating-point
1284         reductions.
1286 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1287             Alan Hayward  <alan.hayward@arm.com>
1288             David Sherwood  <david.sherwood@arm.com>
1290         * tree.h (build_index_vector): Declare.
1291         * tree.c (build_index_vector): New function.
1292         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
1293         of units as polynomial, forcibly converting it to a constant if
1294         vectorizable_reduction has already enforced the condition.
1295         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
1296         to create a {1,2,3,...} vector.
1297         (vectorizable_reduction): Treat the number of units as polynomial.
1298         Choose vectype_in based on the largest scalar element size rather
1299         than the smallest number of units.  Enforce the restrictions
1300         relied on above.
1302 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1303             Alan Hayward  <alan.hayward@arm.com>
1304             David Sherwood  <david.sherwood@arm.com>
1306         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
1307         number of units as polynomial.
1309 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1310             Alan Hayward  <alan.hayward@arm.com>
1311             David Sherwood  <david.sherwood@arm.com>
1313         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
1314         * target.def (autovectorize_vector_sizes): Return the vector sizes
1315         by pointer, using vector_sizes rather than a bitmask.
1316         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
1317         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
1318         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
1319         Likewise.
1320         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
1321         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
1322         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
1323         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
1324         * omp-general.c (omp_max_vf): Likewise.
1325         * omp-low.c (omp_clause_aligned_alignment): Likewise.
1326         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
1327         * tree-vect-loop.c (vect_analyze_loop): Likewise.
1328         * tree-vect-slp.c (vect_slp_bb): Likewise.
1329         * doc/tm.texi: Regenerate.
1330         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
1331         to a poly_uint64.
1332         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
1333         the vector size as a poly_uint64 rather than an unsigned int.
1334         (current_vector_size): Change from an unsigned int to a poly_uint64.
1335         (get_vectype_for_scalar_type): Update accordingly.
1336         * tree.h (build_truth_vector_type): Take the size and number of
1337         units as a poly_uint64 rather than an unsigned int.
1338         (build_vector_type): Add a temporary overload that takes
1339         the number of units as a poly_uint64 rather than an unsigned int.
1340         * tree.c (make_vector_type): Likewise.
1341         (build_truth_vector_type): Take the number of units as a poly_uint64
1342         rather than an unsigned int.
1344 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1345             Alan Hayward  <alan.hayward@arm.com>
1346             David Sherwood  <david.sherwood@arm.com>
1348         * target.def (get_mask_mode): Take the number of units and length
1349         as poly_uint64s rather than unsigned ints.
1350         * targhooks.h (default_get_mask_mode): Update accordingly.
1351         * targhooks.c (default_get_mask_mode): Likewise.
1352         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
1353         * doc/tm.texi: Regenerate.
1355 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1356             Alan Hayward  <alan.hayward@arm.com>
1357             David Sherwood  <david.sherwood@arm.com>
1359         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
1360         * omp-general.c (omp_max_vf): Likewise.
1361         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
1362         (expand_omp_simd): Handle polynomial safelen.
1363         * omp-low.c (omplow_simd_context): Add a default constructor.
1364         (omplow_simd_context::max_vf): Change from int to poly_uint64.
1365         (lower_rec_simd_input_clauses): Update accordingly.
1366         (lower_rec_input_clauses): Likewise.
1368 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1369             Alan Hayward  <alan.hayward@arm.com>
1370             David Sherwood  <david.sherwood@arm.com>
1372         * tree-vectorizer.h (vect_nunits_for_cost): New function.
1373         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
1374         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
1375         (vect_analyze_slp_cost): Likewise.
1376         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
1377         (vect_model_load_cost): Likewise.
1379 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1380             Alan Hayward  <alan.hayward@arm.com>
1381             David Sherwood  <david.sherwood@arm.com>
1383         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
1384         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
1385         from an unsigned int * to a poly_uint64_pod *.
1386         (calculate_unrolling_factor): New function.
1387         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
1389 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1390             Alan Hayward  <alan.hayward@arm.com>
1391             David Sherwood  <david.sherwood@arm.com>
1393         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
1394         from an unsigned int to a poly_uint64.
1395         (_loop_vec_info::slp_unrolling_factor): Likewise.
1396         (_loop_vec_info::vectorization_factor): Change from an int
1397         to a poly_uint64.
1398         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
1399         (vect_get_num_vectors): New function.
1400         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
1401         (vect_get_num_copies): Use vect_get_num_vectors.
1402         (vect_analyze_data_ref_dependences): Change max_vf from an int *
1403         to an unsigned int *.
1404         (vect_analyze_data_refs): Change min_vf from an int * to a
1405         poly_uint64 *.
1406         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
1407         than an unsigned HOST_WIDE_INT.
1408         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
1409         (vect_analyze_data_ref_dependence): Change max_vf from an int *
1410         to an unsigned int *.
1411         (vect_analyze_data_ref_dependences): Likewise.
1412         (vect_compute_data_ref_alignment): Handle polynomial vf.
1413         (vect_enhance_data_refs_alignment): Likewise.
1414         (vect_prune_runtime_alias_test_list): Likewise.
1415         (vect_shift_permute_load_chain): Likewise.
1416         (vect_supportable_dr_alignment): Likewise.
1417         (dependence_distance_ge_vf): Take the vectorization factor as a
1418         poly_uint64 rather than an unsigned HOST_WIDE_INT.
1419         (vect_analyze_data_refs): Change min_vf from an int * to a
1420         poly_uint64 *.
1421         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
1422         vfm1 as a poly_uint64 rather than an int.  Make the same change
1423         for the returned bound_scalar.
1424         (vect_gen_vector_loop_niters): Handle polynomial vf.
1425         (vect_do_peeling): Likewise.  Update call to
1426         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
1427         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
1428         be constant.
1429         * tree-vect-loop.c (vect_determine_vectorization_factor)
1430         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
1431         (vect_get_known_peeling_cost): Likewise.
1432         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
1433         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
1434         (vect_transform_loop): Likewise.  Use the lowest possible VF when
1435         updating the upper bounds of the loop.
1436         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
1437         rather than an int.
1438         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
1439         polynomial unroll factors.
1440         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
1441         (vect_make_slp_decision): Likewise.
1442         (vect_supported_load_permutation_p): Likewise, and polynomial
1443         vf too.
1444         (vect_analyze_slp_cost): Handle polynomial vf.
1445         (vect_slp_analyze_node_operations): Likewise.
1446         (vect_slp_analyze_bb_1): Likewise.
1447         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
1448         than an unsigned HOST_WIDE_INT.
1449         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
1450         (vectorizable_load): Handle polynomial vf.
1451         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
1452         a poly_uint64.
1453         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
1455 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1456             Alan Hayward  <alan.hayward@arm.com>
1457             David Sherwood  <david.sherwood@arm.com>
1459         * match.pd: Handle bit operations involving three constants
1460         and try to fold one pair.
1462 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
1464         * tree-vect-loop-manip.c: Include gimple-fold.h.
1465         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
1466         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
1467         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
1468         Add a path that uses a step of VF instead of 1, but disable it
1469         for now.
1470         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
1471         and niters_no_overflow parameters.  Update calls to
1472         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
1473         Create a new SSA name if the latter choses to use a ste other
1474         than zero, and return it via niters_vector_mult_vf_var.
1475         * tree-vect-loop.c (vect_transform_loop): Update calls to
1476         vect_do_peeling, vect_gen_vector_loop_niters and
1477         slpeel_make_loop_iterate_ntimes.
1478         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
1479         (vect_gen_vector_loop_niters): Update declarations after above changes.
1481 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
1483         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
1484         128-bit round to integer instructions.
1485         (ceil<mode>2): Likewise.
1486         (btrunc<mode>2): Likewise.
1487         (round<mode>2): Likewise.
1489 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
1491         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
1492         unaligned VSX load/store on P8/P9.
1493         (expand_block_clear): Allow the use of unaligned VSX
1494         load/store on P8/P9.
1496 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1498         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
1499         New function.
1500         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
1501         swap associated with both a load and a store.
1503 2018-01-02  Andrew Waterman  <andrew@sifive.com>
1505         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
1506         * config/riscv/riscv.md (clear_cache): Use it.
1508 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
1510         * web.c: Remove out-of-date comment.
1512 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1514         * expr.c (fixup_args_size_notes): Check that any existing
1515         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
1516         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
1517         (emit_single_push_insn): ...here.
1519 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1521         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
1522         (const_vector_encoded_nelts): New function.
1523         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
1524         (const_vector_int_elt, const_vector_elt): Declare.
1525         * emit-rtl.c (const_vector_int_elt_1): New function.
1526         (const_vector_elt): Likewise.
1527         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
1528         of CONST_VECTOR_ELT.
1530 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1532         * expr.c: Include rtx-vector-builder.h.
1533         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
1534         directly on the tree encoding.
1535         (const_vector_from_tree): Likewise.
1536         * optabs.c: Include rtx-vector-builder.h.
1537         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
1538         sequence of "u" values.
1539         * vec-perm-indices.c: Include rtx-vector-builder.h.
1540         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
1541         directly on the vec_perm_indices encoding.
1543 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1545         * doc/rtl.texi (const_vector): Describe new encoding scheme.
1546         * Makefile.in (OBJS): Add rtx-vector-builder.o.
1547         * rtx-vector-builder.h: New file.
1548         * rtx-vector-builder.c: Likewise.
1549         * rtl.h (rtx_def::u2): Add a const_vector field.
1550         (CONST_VECTOR_NPATTERNS): New macro.
1551         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
1552         (CONST_VECTOR_DUPLICATE_P): Likewise.
1553         (CONST_VECTOR_STEPPED_P): Likewise.
1554         (CONST_VECTOR_ENCODED_ELT): Likewise.
1555         (const_vec_duplicate_p): Check for a duplicated vector encoding.
1556         (unwrap_const_vec_duplicate): Likewise.
1557         (const_vec_series_p): Check for a non-duplicated vector encoding.
1558         Say that the function only returns true for integer vectors.
1559         * emit-rtl.c: Include rtx-vector-builder.h.
1560         (gen_const_vec_duplicate_1): Delete.
1561         (gen_const_vector): Call gen_const_vec_duplicate instead of
1562         gen_const_vec_duplicate_1.
1563         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
1564         (gen_const_vec_duplicate): Use rtx_vector_builder.
1565         (gen_const_vec_series): Likewise.
1566         (gen_rtx_CONST_VECTOR): Likewise.
1567         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
1568         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
1569         Build a new vector rather than modifying a CONST_VECTOR in-place.
1570         (handle_special_swappables): Update call accordingly.
1571         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
1572         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
1573         Build a new vector rather than modifying a CONST_VECTOR in-place.
1574         (handle_special_swappables): Update call accordingly.
1576 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1578         * simplify-rtx.c (simplify_const_binary_operation): Use
1579         CONST_VECTOR_ELT instead of XVECEXP.
1581 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1583         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
1584         the selector elements to be different from the data elements
1585         if the selector is a VECTOR_CST.
1586         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
1587         ssizetype for the selector.
1589 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1591         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
1592         before testing each element individually.
1593         * tree-vect-generic.c (lower_vec_perm): Likewise.
1595 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1597         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
1598         * selftest-run-tests.c (selftest::run_tests): Call it.
1599         * vector-builder.h (vector_builder::operator ==): New function.
1600         (vector_builder::operator !=): Likewise.
1601         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
1602         (vec_perm_indices::all_from_input_p): New function.
1603         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
1604         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
1605         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
1606         instead of reading the VECTOR_CST directly.  Detect whether both
1607         vector inputs are the same before constructing the vec_perm_indices,
1608         and update the number of inputs argument accordingly.  Use the
1609         utility functions added above.  Only construct sel2 if we need to.
1611 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1613         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
1614         the broadcast of the low byte.
1615         (expand_mult_highpart): Use an explicit encoding for the permutes.
1616         * optabs-query.c (can_mult_highpart_p): Likewise.
1617         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
1618         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
1619         (vectorizable_bswap): Likewise.
1620         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
1621         explicit encoding for the power-of-2 permutes.
1622         (vect_permute_store_chain): Likewise.
1623         (vect_grouped_load_supported): Likewise.
1624         (vect_permute_load_chain): Likewise.
1626 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1628         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
1629         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
1630         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
1631         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
1632         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
1633         (vect_gen_perm_mask_any): Likewise.
1635 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1637         * int-vector-builder.h: New file.
1638         * vec-perm-indices.h: Include int-vector-builder.h.
1639         (vec_perm_indices): Redefine as an int_vector_builder.
1640         (auto_vec_perm_indices): Delete.
1641         (vec_perm_builder): Redefine as a stand-alone class.
1642         (vec_perm_indices::vec_perm_indices): New function.
1643         (vec_perm_indices::clamp): Likewise.
1644         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
1645         (vec_perm_indices::new_vector): New function.
1646         (vec_perm_indices::new_expanded_vector): Update for new
1647         vec_perm_indices class.
1648         (vec_perm_indices::rotate_inputs): New function.
1649         (vec_perm_indices::all_in_range_p): Operate directly on the
1650         encoded form, without computing elided elements.
1651         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
1652         encoding.  Update for new vec_perm_indices class.
1653         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
1654         the given vec_perm_builder.
1655         (expand_vec_perm_var): Update vec_perm_builder constructor.
1656         (expand_mult_highpart): Use vec_perm_builder instead of
1657         auto_vec_perm_indices.
1658         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
1659         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
1660         or double series encoding as appropriate.
1661         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
1662         vec_perm_indices instead of auto_vec_perm_indices.
1663         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
1664         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
1665         (vect_permute_store_chain): Likewise.
1666         (vect_grouped_load_supported): Likewise.
1667         (vect_permute_load_chain): Likewise.
1668         (vect_shift_permute_load_chain): Likewise.
1669         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
1670         (vect_transform_slp_perm_load): Likewise.
1671         (vect_schedule_slp_instance): Likewise.
1672         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
1673         (vectorizable_mask_load_store): Likewise.
1674         (vectorizable_bswap): Likewise.
1675         (vectorizable_store): Likewise.
1676         (vectorizable_load): Likewise.
1677         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
1678         vec_perm_indices instead of auto_vec_perm_indices.  Use
1679         tree_to_vec_perm_builder to read the vector from a tree.
1680         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
1681         vec_perm_builder instead of a vec_perm_indices.
1682         (have_whole_vector_shift): Use vec_perm_builder and
1683         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
1684         truncation to calc_vec_perm_mask_for_shift.
1685         (vect_create_epilog_for_reduction): Likewise.
1686         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
1687         from auto_vec_perm_indices to vec_perm_indices.
1688         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
1689         instead of changing individual elements.
1690         (aarch64_vectorize_vec_perm_const): Use new_vector to install
1691         the vector in d.perm.
1692         * config/arm/arm.c (expand_vec_perm_d::perm): Change
1693         from auto_vec_perm_indices to vec_perm_indices.
1694         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
1695         instead of changing individual elements.
1696         (arm_vectorize_vec_perm_const): Use new_vector to install
1697         the vector in d.perm.
1698         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
1699         Update vec_perm_builder constructor.
1700         (rs6000_expand_interleave): Likewise.
1701         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
1702         (rs6000_expand_interleave): Likewise.
1704 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1706         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
1707         to qimode could truncate the indices.
1708         * optabs.c (expand_vec_perm_var): Likewise.
1710 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1712         * Makefile.in (OBJS): Add vec-perm-indices.o.
1713         * vec-perm-indices.h: New file.
1714         * vec-perm-indices.c: Likewise.
1715         * target.h (vec_perm_indices): Replace with a forward class
1716         declaration.
1717         (auto_vec_perm_indices): Move to vec-perm-indices.h.
1718         * optabs.h: Include vec-perm-indices.h.
1719         (expand_vec_perm): Delete.
1720         (selector_fits_mode_p, expand_vec_perm_var): Declare.
1721         (expand_vec_perm_const): Declare.
1722         * target.def (vec_perm_const_ok): Replace with...
1723         (vec_perm_const): ...this new hook.
1724         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
1725         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
1726         * doc/tm.texi: Regenerate.
1727         * optabs.def (vec_perm_const): Delete.
1728         * doc/md.texi (vec_perm_const): Likewise.
1729         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
1730         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
1731         expand_vec_perm for constant permutation vectors.  Assert that
1732         the mode of variable permutation vectors is the integer equivalent
1733         of the mode that is being permuted.
1734         * optabs-query.h (selector_fits_mode_p): Declare.
1735         * optabs-query.c: Include vec-perm-indices.h.
1736         (selector_fits_mode_p): New function.
1737         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
1738         is defined, instead of checking whether the vec_perm_const_optab
1739         exists.  Use targetm.vectorize.vec_perm_const instead of
1740         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
1741         fit in the vector mode before using a variable permute.
1742         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
1743         vec_perm_indices instead of an rtx.
1744         (expand_vec_perm): Replace with...
1745         (expand_vec_perm_const): ...this new function.  Take the selector
1746         as a vec_perm_indices rather than an rtx.  Also take the mode of
1747         the selector.  Update call to shift_amt_for_vec_perm_mask.
1748         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
1749         Use vec_perm_indices::new_expanded_vector to expand the original
1750         selector into bytes.  Check whether the indices fit in the vector
1751         mode before using a variable permute.
1752         (expand_vec_perm_var): Make global.
1753         (expand_mult_highpart): Use expand_vec_perm_const.
1754         * fold-const.c: Includes vec-perm-indices.h.
1755         * tree-ssa-forwprop.c: Likewise.
1756         * tree-vect-data-refs.c: Likewise.
1757         * tree-vect-generic.c: Likewise.
1758         * tree-vect-loop.c: Likewise.
1759         * tree-vect-slp.c: Likewise.
1760         * tree-vect-stmts.c: Likewise.
1761         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
1762         Delete.
1763         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
1764         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
1765         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
1766         (aarch64_vectorize_vec_perm_const): ...this new function.
1767         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
1768         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
1769         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
1770         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
1771         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
1772         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
1773         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
1774         into...
1775         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
1776         check for NEON modes.
1777         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
1778         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
1779         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
1780         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
1781         into...
1782         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
1783         the old VEC_PERM_CONST conditions.
1784         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
1785         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
1786         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
1787         (ia64_vectorize_vec_perm_const_ok): Merge into...
1788         (ia64_vectorize_vec_perm_const): ...this new function.
1789         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
1790         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
1791         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
1792         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
1793         * config/mips/mips.c (mips_expand_vec_perm_const)
1794         (mips_vectorize_vec_perm_const_ok): Merge into...
1795         (mips_vectorize_vec_perm_const): ...this new function.
1796         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
1797         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
1798         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
1799         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
1800         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
1801         (rs6000_expand_vec_perm_const): Delete.
1802         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
1803         Delete.
1804         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
1805         (altivec_expand_vec_perm_const_le): Take each operand individually.
1806         Operate on constant selectors rather than rtxes.
1807         (altivec_expand_vec_perm_const): Likewise.  Update call to
1808         altivec_expand_vec_perm_const_le.
1809         (rs6000_expand_vec_perm_const): Delete.
1810         (rs6000_vectorize_vec_perm_const_ok): Delete.
1811         (rs6000_vectorize_vec_perm_const): New function.
1812         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
1813         an element count and rtx array.
1814         (rs6000_expand_extract_even): Update call accordingly.
1815         (rs6000_expand_interleave): Likewise.
1816         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
1817         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
1818         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
1819         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
1820         (rs6000_expand_vec_perm_const): Delete.
1821         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
1822         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
1823         (altivec_expand_vec_perm_const_le): Take each operand individually.
1824         Operate on constant selectors rather than rtxes.
1825         (altivec_expand_vec_perm_const): Likewise.  Update call to
1826         altivec_expand_vec_perm_const_le.
1827         (rs6000_expand_vec_perm_const): Delete.
1828         (rs6000_vectorize_vec_perm_const_ok): Delete.
1829         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
1830         reference to the SPE evmerge intructions.
1831         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
1832         an element count and rtx array.
1833         (rs6000_expand_extract_even): Update call accordingly.
1834         (rs6000_expand_interleave): Likewise.
1835         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
1836         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
1837         new function.
1838         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
1840 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1842         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
1843         vector mode and that that mode matches the mode of the data
1844         being permuted.
1845         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
1846         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
1847         directly using expand_vec_perm_1 when forcing selectors into
1848         registers.
1849         (expand_vec_perm_var): New function, split out from expand_vec_perm.
1851 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1853         * optabs-query.h (can_vec_perm_p): Delete.
1854         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
1855         * optabs-query.c (can_vec_perm_p): Split into...
1856         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
1857         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
1858         particular selector is valid.
1859         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
1860         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
1861         (vect_grouped_load_supported): Likewise.
1862         (vect_shift_permute_load_chain): Likewise.
1863         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
1864         (vect_transform_slp_perm_load): Likewise.
1865         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
1866         (vectorizable_bswap): Likewise.
1867         (vect_gen_perm_mask_checked): Likewise.
1868         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
1869         implementations of variable permutation vectors into account
1870         when deciding which selector to use.
1871         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
1872         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
1873         with a false third argument.
1874         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
1875         to test whether the constant selector is valid and can_vec_perm_var_p
1876         to test whether a variable selector is valid.
1878 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1880         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
1881         * optabs-query.c (can_vec_perm_p): Likewise.
1882         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
1883         instead of vec_perm_indices.
1884         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
1885         (vect_gen_perm_mask_checked): Likewise,
1886         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
1887         (vect_gen_perm_mask_checked): Likewise,
1889 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
1891         * optabs-query.h (qimode_for_vec_perm): Declare.
1892         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
1893         (qimode_for_vec_perm): ...this new function.
1894         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
1896 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
1898         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
1899         does not have a conditional at the top.
1901 2018-01-02  Richard Biener  <rguenther@suse.de>
1903         * ipa-inline.c (big_speedup_p): Fix expression.
1905 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
1907         PR target/81616
1908         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
1909         for generic 4->6.
1911 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
1913         PR target/81616
1914         Generic tuning.
1915         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
1916         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
1917         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
1918         cond_taken_branch_cost 3->4.
1920 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
1922         PR tree-optimization/83581
1923         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
1924         TODO_cleanup_cfg if any changes have been made.
1926         PR middle-end/83608
1927         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
1928         convert_modes if target mode has the right side, but different mode
1929         class.
1931         PR middle-end/83609
1932         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
1933         last argument when extracting from CONCAT.  If either from_real or
1934         from_imag is NULL, use expansion through memory.  If result is not
1935         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
1936         the parts directly to inner mode, if even that fails, use expansion
1937         through memory.
1939         PR middle-end/83623
1940         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
1941         check for bswap in mode rather than HImode and use that in expand_unop
1942         too.
1944 Copyright (C) 2018 Free Software Foundation, Inc.
1946 Copying and distribution of this file, with or without modification,
1947 are permitted in any medium without royalty provided the copyright
1948 notice and this notice are preserved.