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Author SHA1 Message Date
Richard Sandiford
490d0f6c91 [6/77] Make GET_MODE_WIDER return an opt_mode 
GET_MODE_WIDER previously returned VOIDmode if no wider mode existed.
That would cause problems with stricter mode classes, since VOIDmode
isn't for example a valid scalar integer or floating-point mode.
This patch instead makes it return a new opt_mode<T> class, which
holds either a T or nothing.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* coretypes.h (opt_mode): New class.
	* machmode.h (opt_mode): Likewise.
	(opt_mode::else_void): New function.
	(opt_mode::require): Likewise.
	(opt_mode::exists): Likewise.
	(GET_MODE_WIDER_MODE): Turn into a function and return an opt_mode.
	(GET_MODE_2XWIDER_MODE): Likewise.
	(mode_iterator::get_wider): Update accordingly.
	(mode_iterator::get_2xwider): Likewise.
	(mode_iterator::get_known_wider): Likewise, turning into a template.
	* combine.c (make_extraction): Update use of GET_MODE_WIDER_MODE,
	forcing a wider mode to exist.
	* config/cr16/cr16.h (LONG_REG_P): Likewise.
	* rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
	* config/c6x/c6x.c (c6x_rtx_costs): Update use of
	GET_MODE_2XWIDER_MODE, forcing a wider mode to exist.
	* lower-subreg.c (init_lower_subreg): Likewise.
	* optabs-libfuncs.c (init_sync_libfuncs_1): Likewise, but not
	on the final iteration.
	* config/i386/i386.c (ix86_expand_set_or_movmem): Check whether
	a wider mode exists before asking for a move pattern.
	(get_mode_wider_vector): Update use of GET_MODE_WIDER_MODE,
	forcing a wider mode to exist.
	(expand_vselect_vconcat): Update use of GET_MODE_2XWIDER_MODE,
	returning false if no such mode exists.
	* config/ia64/ia64.c (expand_vselect_vconcat): Likewise.
	* config/mips/mips.c (mips_expand_vselect_vconcat): Likewise.
	* expmed.c (init_expmed_one_mode): Update use of GET_MODE_WIDER_MODE.
	Avoid checking for a MODE_INT if we already know the mode is not a
	SCALAR_INT_MODE_P.
	(extract_high_half): Update use of GET_MODE_WIDER_MODE,
	forcing a wider mode to exist.
	(expmed_mult_highpart_optab): Likewise.
	(expmed_mult_highpart): Likewise.
	* expr.c (expand_expr_real_2): Update use of GET_MODE_WIDER_MODE,
	using else_void.
	* lto-streamer-in.c (lto_input_mode_table): Likewise.
	* optabs-query.c (find_widening_optab_handler_and_mode): Likewise.
	* stor-layout.c (bit_field_mode_iterator::next_mode): Likewise.
	* internal-fn.c (expand_mul_overflow): Update use of
	GET_MODE_2XWIDER_MODE.
	* omp-low.c (omp_clause_aligned_alignment): Likewise.
	* tree-ssa-math-opts.c (convert_mult_to_widen): Update use of
	GET_MODE_WIDER_MODE.
	(convert_plusminus_to_widen): Likewise.
	* tree-switch-conversion.c (array_value_type): Likewise.
	* var-tracking.c (emit_note_insn_var_location): Likewise.
	* tree-vrp.c (simplify_float_conversion_using_ranges): Likewise.
	Return false inside rather than outside the loop if no wider mode
	exists
	* optabs.c (expand_binop): Update use of GET_MODE_WIDER_MODE
	and GET_MODE_2XWIDER_MODE
	(can_compare_p): Use else_void.
	* gdbhooks.py (OptMachineModePrinter): New class.
	(build_pretty_printer): Use it for opt_mode.

gcc/ada/
	* gcc-interface/decl.c (validate_size): Update use of
	GET_MODE_WIDER_MODE, forcing a wider mode to exist.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r251457
 2017-08-30 11:09:01 +00:00
Richard Sandiford
c94843d242 [4/77] Add FOR_EACH iterators for modes 
The new iterators are:

- FOR_EACH_MODE_IN_CLASS: iterate over all the modes in a mode class.

- FOR_EACH_MODE_FROM: iterate over all the modes in a class,
  starting at a given mode.

- FOR_EACH_WIDER_MODE: iterate over all the modes in a class,
  starting at the next widest mode after a given mode.

- FOR_EACH_2XWIDER_MODE: same, but considering only modes that
  are two times wider than the previous mode.

- FOR_EACH_MODE_UNTIL: iterate over all the modes in a class until
  a given mode is reached.

- FOR_EACH_MODE: iterate over all the modes in a class between
  two given modes, inclusive of the first but not the second.

These help with the stronger type checking added by later patches,
since every new mode will be in the same class as the previous one.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

gcc/
	* machmode.h (mode_traits): New structure.
	(get_narrowest_mode): New function.
	(mode_iterator::start): Likewise.
	(mode_iterator::iterate_p): Likewise.
	(mode_iterator::get_wider): Likewise.
	(mode_iterator::get_known_wider): Likewise.
	(mode_iterator::get_2xwider): Likewise.
	(FOR_EACH_MODE_IN_CLASS): New mode iterator.
	(FOR_EACH_MODE): Likewise.
	(FOR_EACH_MODE_FROM): Likewise.
	(FOR_EACH_MODE_UNTIL): Likewise.
	(FOR_EACH_WIDER_MODE): Likewise.
	(FOR_EACH_2XWIDER_MODE): Likewise.
	* builtins.c (expand_builtin_strlen): Use new mode iterators.
	* combine.c (simplify_comparison): Likewise
	* config/i386/i386.c (type_natural_mode): Likewise.
	* cse.c (cse_insn): Likewise.
	* dse.c (find_shift_sequence): Likewise.
	* emit-rtl.c (init_derived_machine_modes): Likewise.
	(init_emit_once): Likewise.
	* explow.c (hard_function_value): Likewise.
	* expmed.c (extract_fixed_bit_field_1): Likewise.
	(extract_bit_field_1): Likewise.
	(expand_divmod): Likewise.
	(emit_store_flag_1): Likewise.
	* expr.c (init_expr_target): Likewise.
	(convert_move): Likewise.
	(alignment_for_piecewise_move): Likewise.
	(widest_int_mode_for_size): Likewise.
	(emit_block_move_via_movmem): Likewise.
	(copy_blkmode_to_reg): Likewise.
	(set_storage_via_setmem): Likewise.
	(compress_float_constant): Likewise.
	* omp-low.c (omp_clause_aligned_alignment): Likewise.
	* optabs-query.c (get_best_extraction_insn): Likewise.
	* optabs.c (expand_binop): Likewise.
	(expand_twoval_unop): Likewise.
	(expand_twoval_binop): Likewise.
	(widen_leading): Likewise.
	(widen_bswap): Likewise.
	(expand_parity): Likewise.
	(expand_unop): Likewise.
	(prepare_cmp_insn): Likewise.
	(prepare_float_lib_cmp): Likewise.
	(expand_float): Likewise.
	(expand_fix): Likewise.
	(expand_sfix_optab): Likewise.
	* postreload.c (move2add_use_add2_insn): Likewise.
	* reg-stack.c (reg_to_stack): Likewise.
	* reginfo.c (choose_hard_reg_mode): Likewise.
	* rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
	* stor-layout.c (mode_for_size): Likewise.
	(smallest_mode_for_size): Likewise.
	(mode_for_vector): Likewise.
	(finish_bitfield_representative): Likewise.
	* tree-ssa-math-opts.c (target_supports_divmod_p): Likewise.
	* tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
	* tree-vect-stmts.c (vectorizable_conversion): Likewise.
	* var-tracking.c (prepare_call_arguments): Likewise.

gcc/ada/
	* gcc-interface/misc.c (fp_prec_to_size): Use new mode iterators.
	(fp_size_to_prec): Likewise.

gcc/c-family/
	* c-common.c (c_common_fixed_point_type_for_size): Use new mode
	iterators.
	* c-cppbuiltin.c (c_cpp_builtins): Likewise.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r251455
 2017-08-30 11:08:44 +00:00
Richard Sandiford
2be65d9e98 Add a type_has_mode_precision_p helper function 
...to replace instances of:

    TYPE_PRECISION (t) == GET_MODE_PRECISION (TYPE_MODE (t))

These conditions would need to be rewritten with variable-sized
modes anyway.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* tree.h (type_has_mode_precision_p): New function.
	* convert.c (convert_to_integer_1): Use it.
	* expr.c (expand_expr_real_2): Likewise.
	(expand_expr_real_1): Likewise.
	* fold-const.c (fold_single_bit_test_into_sign_test): Likewise.
	* match.pd: Likewise.
	* tree-ssa-forwprop.c (simplify_rotate): Likewise.
	* tree-ssa-math-opts.c (convert_mult_to_fma): Likewise.
	* tree-tailcall.c (process_assignment): Likewise.
	* tree-vect-loop.c (vectorizable_reduction): Likewise.
	* tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern)
	(vect_recog_mult_pattern, vect_recog_divmod_pattern): Likewise.
	* tree-vect-stmts.c (vectorizable_conversion): Likewise.
	(vectorizable_assignment): Likewise.
	(vectorizable_shift): Likewise.
	(vectorizable_operation): Likewise.
	* tree-vrp.c (register_edge_assert_for_2): Likewise.

From-SVN: r251231
 2017-08-21 14:50:56 +00:00
Jakub Jelinek
ff03930a11 re PR target/80846 (auto-vectorized AVX2 horizontal sum should narrow to 128b right away, to be more efficient for Ryzen and Intel) 
PR target/80846
	* optabs.def (vec_extract_optab, vec_init_optab): Change from
	a direct optab to conversion optab.
	* optabs.c (expand_vector_broadcast): Use convert_optab_handler
	with GET_MODE_INNER as last argument instead of optab_handler.
	* expmed.c (extract_bit_field_1): Likewise.  Use vector from
	vector extraction if possible and optab is available.
	* expr.c (store_constructor): Use convert_optab_handler instead
	of optab_handler.  Use vector initialization from smaller
	vectors if possible and optab is available.
	* tree-vect-stmts.c (vectorizable_load): Likewise.
	* doc/md.texi (vec_extract, vec_init): Document that the optabs
	now have two modes.
	* config/i386/i386.c (ix86_expand_vector_init): Handle expansion
	of vec_init from half-sized vectors with the same element mode.
	* config/i386/sse.md (ssehalfvecmode): Add V4TI case.
	(ssehalfvecmodelower, ssescalarmodelower): New mode attributes.
	(reduc_plus_scal_v8df, reduc_plus_scal_v4df, reduc_plus_scal_v2df,
	reduc_plus_scal_v16sf, reduc_plus_scal_v8sf, reduc_plus_scal_v4sf,
	reduc_<code>_scal_<mode>, reduc_umin_scal_v8hi): Add element mode
	after mode in gen_vec_extract* calls.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><ssescalarmodelower>): ... this.
	(vec_extract<mode><ssehalfvecmodelower>): New expander.
	(rotl<mode>3, rotr<mode>3, <shift_insn><mode>3, ashrv2di3): Add
	element mode after mode in gen_vec_init* calls.
	(VEC_INIT_HALF_MODE): New mode iterator.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><ssescalarmodelower>): ... this.
	(vec_init<mode><ssehalfvecmodelower>): New expander.
	* config/i386/mmx.md (vec_extractv2sf): Renamed to ...
	(vec_extractv2sfsf): ... this.
	(vec_initv2sf): Renamed to ...
	(vec_initv2sfsf): ... this.
	(vec_extractv2si): Renamed to ...
	(vec_extractv2sisi): ... this.
	(vec_initv2si): Renamed to ...
	(vec_initv2sisi): ... this.
	(vec_extractv4hi): Renamed to ...
	(vec_extractv4hihi): ... this.
	(vec_initv4hi): Renamed to ...
	(vec_initv4hihi): ... this.
	(vec_extractv8qi): Renamed to ...
	(vec_extractv8qiqi): ... this.
	(vec_initv8qi): Renamed to ...
	(vec_initv8qiqi): ... this.
	* config/rs6000/vector.md (VEC_base_l): New mode attribute.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><VEC_base_l>): ... this.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><VEC_base_l>): ... this.
	* config/rs6000/paired.md (vec_initv2sf): Renamed to ...
	(vec_initv2sfsf): ... this.
	* config/rs6000/altivec.md (splitter, altivec_copysign_v4sf3,
	vec_unpacku_hi_v16qi, vec_unpacku_hi_v8hi, vec_unpacku_lo_v16qi,
	vec_unpacku_lo_v8hi, mulv16qi3, altivec_vreve<mode>2): Add
	element mode after mode in gen_vec_init* calls.
	* config/aarch64/aarch64-simd.md (vec_init<mode>): Renamed to ...
	(vec_init<mode><Vel>): ... this.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><Vel>): ... this.
	* config/aarch64/iterators.md (Vel): New mode attribute.
	* config/s390/s390.c (s390_expand_vec_strlen, s390_expand_vec_movstr):
	Add element mode after mode in gen_vec_extract* calls.
	* config/s390/vector.md (non_vec_l): New mode attribute.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><non_vec_l>): ... this.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><non_vec_l>): ... this.
	* config/s390/s390-builtins.def (s390_vlgvb, s390_vlgvh, s390_vlgvf,
	s390_vlgvf_flt, s390_vlgvg, s390_vlgvg_dbl): Add element mode after
	vec_extract mode.
	* config/arm/iterators.md (V_elem_l): New mode attribute.
	* config/arm/neon.md (vec_extract<mode>): Renamed to ...
	(vec_extract<mode><V_elem_l>): ... this.
	(vec_extractv2di): Renamed to ...
	(vec_extractv2didi): ... this.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><V_elem_l>): ... this.
	(reduc_plus_scal_<mode>, reduc_plus_scal_v2di, reduc_smin_scal_<mode>,
	reduc_smax_scal_<mode>, reduc_umin_scal_<mode>,
	reduc_umax_scal_<mode>, neon_vget_lane<mode>, neon_vget_laneu<mode>):
	Add element mode after gen_vec_extract* calls.
	* config/mips/mips-msa.md (vec_init<mode>): Renamed to ...
	(vec_init<mode><unitmode>): ... this.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><unitmode>): ... this.
	* config/mips/loongson.md (vec_init<mode>): Renamed to ...
	(vec_init<mode><unitmode>): ... this.
	* config/mips/mips-ps-3d.md (vec_initv2sf): Renamed to ...
	(vec_initv2sfsf): ... this.
	(vec_extractv2sf): Renamed to ...
	(vec_extractv2sfsf): ... this.
	(reduc_plus_scal_v2sf, reduc_smin_scal_v2sf, reduc_smax_scal_v2sf):
	Add element mode after gen_vec_extract* calls.
	* config/mips/mips.md (unitmode): New mode iterator.
	* config/spu/spu.c (spu_expand_prologue, spu_allocate_stack,
	spu_builtin_extract): Add element mode after gen_vec_extract* calls.
	* config/spu/spu.md (inner_l): New mode attribute.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><inner_l>): ... this.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><inner_l>): ... this.
	* config/sparc/sparc.md (veltmode): New mode iterator.
	(vec_init<VMALL:mode>): Renamed to ...
	(vec_init<VMALL:mode><VMALL:veltmode>): ... this.
	* config/ia64/vect.md (vec_initv2si): Renamed to ...
	(vec_initv2sisi): ... this.
	(vec_initv2sf): Renamed to ...
	(vec_initv2sfsf): ... this.
	(vec_extractv2sf): Renamed to ...
	(vec_extractv2sfsf): ... this.
	* config/powerpcspe/vector.md (VEC_base_l): New mode attribute.
	(vec_init<mode>): Renamed to ...
	(vec_init<mode><VEC_base_l>): ... this.
	(vec_extract<mode>): Renamed to ...
	(vec_extract<mode><VEC_base_l>): ... this.
	* config/powerpcspe/paired.md (vec_initv2sf): Renamed to ...
	(vec_initv2sfsf): ... this.
	* config/powerpcspe/altivec.md (splitter, altivec_copysign_v4sf3,
	vec_unpacku_hi_v16qi, vec_unpacku_hi_v8hi, vec_unpacku_lo_v16qi,
	vec_unpacku_lo_v8hi, mulv16qi3): Add element mode after mode in
	gen_vec_init* calls.

From-SVN: r250759
 2017-08-01 10:26:14 +02:00
Eric Botcazou
3ba358bf20 expr.c (expand_expr): When testing for unaligned objects... 
* expr.c (expand_expr) <normal_inner_ref>: When testing for unaligned
	objects, take into account only the alignment of 'op0' and 'mode1' if
	'op0' is a MEM.

From-SVN: r249811
 2017-06-29 19:21:25 +00:00
Steve Ellcey
f580a969d7 ccmp.c (ccmp_tree_comparison_p): New function. 
2017-06-29  Steve Ellcey  <sellcey@cavium.com>

	* ccmp.c (ccmp_tree_comparison_p): New function.
	(ccmp_candidate_p): Update to use above function.
	(get_compare_parts): New function.
	(expand_ccmp_next): Update to use new functions.
	(expand_ccmp_expr_1): Take tree arg instead of gimple, update to use
	new functions.
	(expand_ccmp_expr): Pass tree instead of gimple to expand_ccmp_expr_1,
	take mode as argument.
	* ccmp.h (expand_ccmp_expr): Add mode as argument.
	* expr.c (expand_expr_real_1): Pass mode as argument.

From-SVN: r249805
 2017-06-29 18:20:14 +00:00
Jan Hubicka
357067f243 asan.c (asan_emit_stack_protection): Update. 
* asan.c (asan_emit_stack_protection): Update.
	(create_cond_insert_point): Update.
	* auto-profile.c (afdo_propagate_circuit): Update.
	* basic-block.h (struct edge_def): Turn probability to
	profile_probability.
	(EDGE_FREQUENCY): Update.
	* bb-reorder.c (find_traces_1_round): Update.
	(better_edge_p): Update.
	(sanitize_hot_paths): Update.
	* cfg.c (unchecked_make_edge): Initialize probability to uninitialized.
	(make_single_succ_edge): Update.
	(check_bb_profile): Update.
	(dump_edge_info): Update.
	(update_bb_profile_for_threading): Update.
	* cfganal.c (connect_infinite_loops_to_exit): Initialize new edge
	probabilitycount to 0.
	* cfgbuild.c (compute_outgoing_frequencies): Update.
	* cfgcleanup.c (try_forward_edges): Update.
	(outgoing_edges_match): Update.
	(try_crossjump_to_edge): Update.
	* cfgexpand.c (expand_gimple_cond): Update make_single_succ_edge.
	(expand_gimple_tailcall): Update.
	(construct_init_block): Use make_single_succ_edge.
	(construct_exit_block): Use make_single_succ_edge.
	* cfghooks.c (verify_flow_info): Update.
	(redirect_edge_succ_nodup): Update.
	(split_edge): Update.
	(account_profile_record): Update.
	* cfgloopanal.c (single_likely_exit): Update.
	* cfgloopmanip.c (scale_loop_profile): Update.
	(set_zero_probability): Remove.
	(duplicate_loop_to_header_edge): Update.
	* cfgloopmanip.h (loop_version): Update prototype.
	* cfgrtl.c (try_redirect_by_replacing_jump): Update.
	(force_nonfallthru_and_redirect): Update.
	(update_br_prob_note): Update.
	(rtl_verify_edges): Update.
	(purge_dead_edges): Update.
	(rtl_lv_add_condition_to_bb): Update.
	* cgraph.c: (cgraph_edge::redirect_call_stmt_to_calle): Update.
	* cgraphunit.c (init_lowered_empty_function): Update.
	(cgraph_node::expand_thunk): Update.
	* cilk-common.c: Include profile-count.h
	* dojump.c (inv): Remove.
	(jumpifnot): Update.
	(jumpifnot_1): Update.
	(do_jump_1): Update.
	(do_jump): Update.
	(do_jump_by_parts_greater_rtx): Update.
	(do_compare_rtx_and_jump): Update.
	* dojump.h (jumpifnot, jumpifnot_1, jumpif_1, jumpif, do_jump,
	do_jump_1. do_compare_rtx_and_jump): Update prototype.
	* dwarf2cfi.c: Include profile-count.h
	* except.c (dw2_build_landing_pads): Use make_single_succ_edge.
	(sjlj_emit_dispatch_table): Likewise.
	* explow.c: Include profile-count.h
	* expmed.c (emit_store_flag_force): Update.
	(do_cmp_and_jump): Update.
	* expr.c (compare_by_pieces_d::generate): Update.
	(compare_by_pieces_d::finish_mode): Update.
	(emit_block_move_via_loop): Update.
	(store_expr_with_bounds): Update.
	(store_constructor): Update.
	(expand_expr_real_2): Update.
	(expand_expr_real_1): Update.
	* expr.h (try_casesi, try_tablejump): Update prototypes.
	* gimple-pretty-print.c (dump_probability): Update.
	(dump_profile): New.
	(dump_gimple_label): Update.
	(dump_gimple_bb_header): Update.
	* graph.c (draw_cfg_node_succ_edges): Update.
	* hsa-gen.c (convert_switch_statements): Update.
	* ifcvt.c (cheap_bb_rtx_cost_p): Update.
	(find_if_case_1): Update.
	(find_if_case_2): Update.
	* internal-fn.c (expand_arith_overflow_result_store): Update.
	(expand_addsub_overflow): Update.
	(expand_neg_overflow): Update.
	(expand_mul_overflow): Update.
	(expand_vector_ubsan_overflow): Update.
	* ipa-cp.c (good_cloning_opportunity_p): Update.
	* ipa-split.c (split_function): Use make_single_succ_edge.
	* ipa-utils.c (ipa_merge_profiles): Update.
	* loop-doloop.c (add_test): Update.
	(doloop_modify): Update.
	* loop-unroll.c (compare_and_jump_seq): Update.
	(unroll_loop_runtime_iterations): Update.
	* lra-constraints.c (lra_inheritance): Update.
	* lto-streamer-in.c (input_cfg): Update.
	* lto-streamer-out.c (output_cfg): Update.
	* mcf.c (adjust_cfg_counts): Update.
	* modulo-sched.c (sms_schedule): Update.
	* omp-expand.c (expand_omp_for_init_counts): Update.
	(extract_omp_for_update_vars): Update.
	(expand_omp_ordered_sink): Update.
	(expand_omp_for_ordered_loops): Update.
	(expand_omp_for_generic): Update.
	(expand_omp_for_static_nochunk): Update.
	(expand_omp_for_static_chunk): Update.
	(expand_cilk_for): Update.
	(expand_omp_simd): Update.
	(expand_omp_taskloop_for_outer): Update.
	(expand_omp_taskloop_for_inner): Update.
	* omp-simd-clone.c (simd_clone_adjust): Update.
	* optabs.c (expand_doubleword_shift): Update.
	(expand_abs): Update.
	(emit_cmp_and_jump_insn_1): Update.
	(expand_compare_and_swap_loop): Update.
	* optabs.h (emit_cmp_and_jump_insns): Update prototype.
	* predict.c (predictable_edge_p): Update.
	(edge_probability_reliable_p): Update.
	(set_even_probabilities): Update.
	(combine_predictions_for_insn): Update.
	(combine_predictions_for_bb): Update.
	(propagate_freq): Update.
	(estimate_bb_frequencies): Update.
	(force_edge_cold): Update.
	* profile-count.c (profile_count::dump): Add missing space into dump.
	(profile_count::debug): Add newline.
	(profile_count::differs_from_p): Explicitly convert to unsigned.
	(profile_count::stream_in): Update.
	(profile_probability::dump): New member function.
	(profile_probability::debug): New member function.
	(profile_probability::differs_from_p): New member function.
	(profile_probability::differs_lot_from_p): New member function.
	(profile_probability::stream_in): New member function.
	(profile_probability::stream_out): New member function.
	* profile-count.h (profile_count_quality): Rename to ...
	(profile_quality): ... this one.
	(profile_probability): New.
	(profile_count): Update.
	* profile.c (compute_branch_probabilities): Update.
	* recog.c (peep2_attempt): Update.
	* sched-ebb.c (schedule_ebbs): Update.
	* sched-rgn.c (find_single_block_region): Update.
	(compute_dom_prob_ps): Update.
	(schedule_region): Update.
	* sel-sched-ir.c (compute_succs_info): Update.
	* stmt.c (struct case_node): Update.
	(do_jump_if_equal): Update.
	(get_outgoing_edge_probs): Update.
	(conditional_probability): Update.
	(emit_case_dispatch_table): Update.
	(expand_case): Update.
	(expand_sjlj_dispatch_table): Update.
	(emit_case_nodes): Update.
	* targhooks.c: Update.
	* tracer.c (better_p): Update.
	(find_best_successor): Update.
	* trans-mem.c (expand_transaction): Update.
	* tree-call-cdce.c: Update.
	* tree-cfg.c (gimple_split_edge): Upate.
	(move_sese_region_to_fn): Upate.
	* tree-cfgcleanup.c (cleanup_control_expr_graph): Upate.
	* tree-eh.c (lower_resx): Upate.
	(cleanup_empty_eh_move_lp): Upate.
	* tree-if-conv.c (version_loop_for_if_conversion): Update.
	* tree-inline.c (copy_edges_for_bb): Update.
	(copy_cfg_body): Update.
	* tree-parloops.c (gen_parallel_loop): Update.
	* tree-profile.c (gimple_gen_ic_func_profiler): Update.
	(gimple_gen_time_profiler): Update.
	* tree-ssa-dce.c (remove_dead_stmt): Update.
	* tree-ssa-ifcombine.c (update_profile_after_ifcombine): Update.
	* tree-ssa-loop-im.c (execute_sm_if_changed): Update.
	* tree-ssa-loop-ivcanon.c (remove_exits_and_undefined_stmts): Update.
	(unloop_loops): Update.
	(try_peel_loop): Update.
	* tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update.
	* tree-ssa-loop-split.c (connect_loops): Update.
	(split_loop): Update.
	* tree-ssa-loop-unswitch.c (tree_unswitch_loop): Update.
	(hoist_guard): Update.
	* tree-ssa-phionlycprop.c (propagate_rhs_into_lhs): Update.
	* tree-ssa-phiopt.c (replace_phi_edge_with_variable): Update.
	(value_replacement): Update.
	* tree-ssa-reassoc.c (branch_fixup): Update.
	* tree-ssa-tail-merge.c (replace_block_by): Update.
	* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Update.
	(create_edge_and_update_destination_phis): Update.
	(compute_path_counts): Update.
	(recompute_probabilities): Update.
	(update_joiner_offpath_counts): Update.
	(freqs_to_counts_path): Update.
	(duplicate_thread_path): Update.
	* tree-switch-conversion.c (hoist_edge_and_branch_if_true): Update.
	(struct switch_conv_info): Update.
	(gen_inbound_check): Update.
	* tree-vect-loop-manip.c (slpeel_add_loop_guard): Update.
	(vect_do_peeling): Update.
	(vect_loop_versioning): Update.
	* tree-vect-loop.c (scale_profile_for_vect_loop): Update.
	(optimize_mask_stores): Update.
	* ubsan.c (ubsan_expand_null_ifn): Update.
	* value-prof.c (gimple_divmod_fixed_value): Update.
	(gimple_divmod_fixed_value_transform): Update.
	(gimple_mod_pow2): Update.
	(gimple_mod_pow2_value_transform): Update.
	(gimple_mod_subtract): Update.
	(gimple_mod_subtract_transform): Update.
	(gimple_ic): Update.
	(gimple_stringop_fixed_value): Update.
	(gimple_stringops_transform): Update.
	* value-prof.h: Update.

From-SVN: r249800
 2017-06-29 16:40:53 +00:00
Jim Wilson
f96bf49a02 Patch for RTL expand bug affecting aarch64 vector code. 
gcc/
	PR middle-end/79794
    	* expmed.c (extract_bit_field_1): Add alt_rtl argument.  Before
	maybe_expand_insn call, set ops[0].target.  If still set after call,
	set alt_rtl.  Add extra arg to recursive calls.
	(extract_bit_field): Add alt_rtl argument.  Pass to
	extract_bit_field.
	* expmed.h (extract_bit_field): Fix prototype.
	* expr.c (emit_group_load_1, copy_blkmode_from_reg)
	(copy_blkmode_to_reg, read_complex_part, store_field): Pass extra NULL
	to extract_bit_field_calls.
	(expand_expr_real_1): Pass alt_rtl to expand_expr_real instead of 0.
	Pass alt_rtl to extract_bit_field calls.
	* calls.c (store_unaligned_arguments_into_psuedos)
	load_register_parameters): Pass extra NULL to extract_bit_field calls.
	* optabs.c (maybe_legitimize_operand): Clear op->target when call
	gen_reg_rtx.
	* optabs.h (struct expand_operand): Add target bitfield.

From-SVN: r248004
 2017-05-12 18:32:40 -07:00
Tamar Christina
22677ff0c4 expr.c (expand_expr_real_2): Re-cost if previous costs are the same. 
2017-04-26  Tamar Christina  <tamar.christina@arm.com>

	* expr.c (expand_expr_real_2): Re-cost if previous costs are the same.

From-SVN: r247505
 2017-05-02 15:20:47 +00:00
Tamar Christina
f138ea5cba re PR middle-end/79665 (gcc's signed (x*x)/200 is slower than clang's) 
2017-04-26  Tamar Christina  <tamar.christina@arm.com>

	PR middle-end/79665
	* expr.c (expand_expr_real_2): Move TRUNC_MOD_EXPR, FLOOR_MOD_EXPR,
	CEIL_MOD_EXPR, ROUND_MOD_EXPR cases.

From-SVN: r247307
 2017-04-27 09:58:27 +00:00
Jakub Jelinek
7687375840 re PR middle-end/80163 (ICE on hopefully valid code) 
PR c/80163
	* expr.c <CASE_CONVERT>: For EXPAND_INITIALIZER determine SIGN_EXTEND
	vs. ZERO_EXTEND based on signedness of treeop0's type rather than
	signedness of the result type.

	* gcc.dg/torture/pr80163.c: New test.

From-SVN: r246876
 2017-04-12 15:57:45 +02:00
Jakub Jelinek
cd5c0aeeae re PR rtl-optimization/79901 (ICE in prepare_cmp_insn, at optabs.c:3904) 
PR rtl-optimization/79901
	* expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no
	min/max expander, expand it using expand_vec_cond_expr.

From-SVN: r245946
 2017-03-07 09:04:38 +01:00
Jakub Jelinek
b607e75e25 re PR middle-end/79665 (gcc's signed (x*x)/200 is slower than clang's) 
PR middle-end/79665
	* internal-fn.c (get_range_pos_neg): Moved to ...
	* tree.c (get_range_pos_neg): ... here.  No longer static.
	* tree.h (get_range_pos_neg): New prototype.
	* expr.c (expand_expr_real_2) <case TRUNC_DIV_EXPR>: If both arguments
	are known to be in between 0 and signed maximum inclusive, try to
	expand both unsigned and signed divmod and use the cheaper one from
	those.

From-SVN: r245676
 2017-02-23 08:49:06 +01:00
Richard Earnshaw
a57c520e2b [expand] Fix for PR rtl-optimization/79121 incorrect expansion of extend plus left shift 
When generating a shift from an extended value moving from one to two
    machine registers, the type of the right shift is for the most
    significant word should be determined by the signedness of the inner
    type, not the signedness of the result type.
    
    gcc:
        PR rtl-optimization/79121
        * expr.c (expand_expr_real_2, case LSHIFT_EXPR): Look at the signedness
        of the inner type when shifting an extended value.
    
    gcc/testsuite:
        * gcc.c-torture/execute/pr79121.c: New test.

From-SVN: r244613
 2017-01-19 10:35:38 +00:00
Eric Botcazou
a34ab4c942 expr.c (store_field): In the bitfield case... 
* expr.c (store_field): In the bitfield case, fetch the return value
	from the registers before applying a single big-endian adjustment.
	Always do a final load for a BLKmode value not larger than a word.

From-SVN: r244299
 2017-01-10 23:05:13 +00:00
Eric Botcazou
a271e41561 expr.c (store_field): In the bitfield case... 
* expr.c (store_field): In the bitfield case, if the value comes from
	a function call and is of an aggregate type returned in registers, do
	not modify the field mode; extract the value in all cases if the mode
	is BLKmode and the size is not larger than a word.

From-SVN: r244249
 2017-01-09 22:17:17 +00:00
Jakub Jelinek
cbe34bb5ed Update copyright years. 
From-SVN: r243994
 2017-01-01 13:07:43 +01:00
Richard Biener
c4d5c5e6ac re PR middle-end/71632 (hang at -O3 on x86_64-linux-gnu) 
2016-12-16  Richard Biener  <rguenther@suse.de>

	PR middle-end/71632
	* expr.c (expand_cond_expr_using_cmove): Bail out early if
	we end up recursing via TER.

	* gcc.dg/pr71632.c: New testcase.

From-SVN: r243737
 2016-12-16 09:38:18 +00:00
Martin Liska
437df9f9d1 Fill bitregion_{start,end} in store_constructor (PR tree-optimization/78428) 
* expr.c (store_constructor_field): Add new arguments to the
	function.
	(store_constructor): Set up bitregion_end and add
	gcc_unreachable to fields that have either non-constant size
	or (and) offset.
	* gcc.dg/tree-ssa/pr78428.c: New test.

From-SVN: r243610
 2016-12-13 15:26:14 +00:00
Trevor Saunders
800dcd865a make recog () take a rtx_insn * 
gcc/ChangeLog:

2016-11-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config/v850/v850.c (expand_prologue): Adjust.
	(expand_epilogue): Likewise.
	* expr.c (init_expr_target): Likewise.
	* genrecog.c (print_subroutine): Always make the argument type
	rtx_insn *.
	* recog.h: Adjust prototype.

From-SVN: r242651
 2016-11-21 06:15:08 +00:00
Richard Sandiford
f079167a30 Use rtx_mode_t instead of std::make_pair 
This change makes the code less sensitive to the exact type of the mode,
i.e. it forces a conversion where necessary.  This becomes important
when wrappers like scalar_int_mode and scalar_mode can also be used
instead of machine_mode.

Using rtx_mode_t also abstracts away the representation.  The fact that
it's a std::pair rather than a custom class isn't important to users of
the interface.

gcc/
2016-11-18  Richard Sandiford  <richard.sandiford@arm.com>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* combine.c (try_combine): Use rtx_mode_t instead of std::make_pair.
	* dwarf2out.c (mem_loc_descriptor, loc_descriptor): Likewise.
	(add_const_value_attribute): Likewise.
	* explow.c (plus_constant): Likewise.
	* expmed.c (expand_mult, make_tree): Likewise.
	* expr.c (convert_modes): Likewise.
	* loop-doloop.c (doloop_optimize): Likewise.
	* postreload.c (reload_cse_simplify_set): Likewise.
	* simplify-rtx.c (simplify_const_unary_operation): Likewise.
	(simplify_binary_operation_1, simplify_const_binary_operation):
	(simplify_const_relational_operation, simplify_immed_subreg): Likewise.
	* wide-int.h: Update documentation to recommend rtx_mode_t
	instead of std::make_pair.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r242586
 2016-11-18 10:04:53 +00:00
Richard Sandiford
024f701ca1 Optimise CONCAT handling in emit_group_load 
The CONCAT handling in emit_group_load chooses between doing
an extraction from a single component or forcing the whole
thing to memory and extracting from there.  The condition for
the former (more efficient) option was:

	  if ((bytepos == 0 && bytelen == slen0)
	      || (bytepos != 0 && bytepos + bytelen <= slen))

On the one hand this seems dangerous, since the second line
allows bit ranges that start in the first component and leak
into the second.  On the other hand it seems strange to allow
references that start after the first byte of the second
component but not those that start after the first byte
of the first component.  This led to a pessimisation of
things like gcc.dg/builtins-54.c for hppa64-hp-hpux11.23.

This patch simply checks whether the reference is contained
within a single component.  It also makes sure that we do
an extraction on anything that doesn't span the whole
component (even if it's constant).

gcc/
2016-11-15  Richard Sandiford  <richard.sandiford@arm.com>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* expr.c (emit_group_load_1): Tighten check for whether an
	access involves only one operand of a CONCAT.  Use extract_bit_field
	for constants if the bit range does span the whole operand.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r242477
 2016-11-16 10:21:22 +00:00
Richard Biener
6fa161dc80 common.opt (flag_evaluation_order): Remove. 
2016-11-09  Richard Biener  <rguenther@suse.de>

	* common.opt (flag_evaluation_order): Remove.
	* expr.c (expand_operands): Remove code guarded by
	flag_evaluation_order.
	* fold-const.c (reorder_operands_p): Remove, it always returns
	true.
	(negate_expr_p): Remove calls to reorder_operands_p.
	(fold_negate_expr): Likewise.
	(tree_swap_operands_p): Likewise.
	(fold_binary_loc): Likewise.

From-SVN: r241998
 2016-11-09 12:37:10 +00:00
Eric Botcazou
b53f8c22f0 expr.h (copy_blkmode_from_reg): Delete. 
* expr.h (copy_blkmode_from_reg): Delete.
	* expr.c (copy_blkmode_from_reg): Make static.

From-SVN: r241856
 2016-11-04 17:44:48 +00:00
Jakub Jelinek
205b9ed14e re PR rtl-optimization/77919 (ICE converting DC to V2DF mode) 
PR rtl-optimization/77919
	* expr.c (expand_expr_real_1) <normal_inner_ref>: Only avoid forcing
	into memory if both modes are complex and their inner modes have the
	same precision.  If the two modes are different complex modes, convert
	each part separately and generate a new CONCAT.

	* g++.dg/torture/pr77919-2.C: New test.

From-SVN: r241681
 2016-10-29 22:22:36 +02:00
Jakub Jelinek
c19066a769 re PR rtl-optimization/77919 (ICE converting DC to V2DF mode) 
PR rtl-optimization/77919
	* expr.c (expand_expr_real_1) <normal_inner_ref>: Force CONCAT into
	MEM if mode1 is not a complex mode.

	* g++.dg/torture/pr77919.C: New test.

From-SVN: r241642
 2016-10-28 10:11:57 +02:00
Jakub Jelinek
96592eeda1 re PR target/78102 (GCC refuses to generate PCMPEQQ instruction for SSE4.1) 
PR target/78102
	* optabs.def (vcondeq_optab, vec_cmpeq_optab): New optabs.
	* optabs.c (expand_vec_cond_expr): For comparison codes
	EQ_EXPR and NE_EXPR, attempt vcondeq_optab as fallback.
	(expand_vec_cmp_expr): For comparison codes
	EQ_EXPR and NE_EXPR, attempt vec_cmpeq_optab as fallback.
	* optabs-tree.h (expand_vec_cmp_expr_p, expand_vec_cond_expr_p):
	Add enum tree_code argument.
	* optabs-query.h (get_vec_cmp_eq_icode, get_vcond_eq_icode): New
	inline functions.
	* optabs-tree.c (expand_vec_cmp_expr_p): Add CODE argument.  For
	CODE EQ_EXPR or NE_EXPR, attempt to use vec_cmpeq_optab as
	fallback.
	(expand_vec_cond_expr_p): Add CODE argument.  For CODE EQ_EXPR or
	NE_EXPR, attempt to use vcondeq_optab as fallback.
	* tree-vect-generic.c (expand_vector_comparison,
	expand_vector_divmod, expand_vector_condition): Adjust
	expand_vec_cmp_expr_p and expand_vec_cond_expr_p callers.
	* tree-vect-stmts.c (vectorizable_condition,
	vectorizable_comparison): Likewise.
	* tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern,
	check_bool_pattern, search_type_for_mask_1): Likewise.
	* expr.c (do_store_flag): Likewise.
	* doc/md.texi (@code{vec_cmpeq@var{m}@var{n}},
	@code{vcondeq@var{m}@var{n}}): Document.
	* config/i386/sse.md (vec_cmpeqv2div2di, vcondeq<VI8F_128:mode>v2di):
	New expanders.
testsuite/
	* gcc.target/i386/pr78102.c: New test.

From-SVN: r241525
 2016-10-25 18:26:12 +02:00
Jakub Jelinek
9a822fc79d re PR middle-end/77959 (ICE in ix86_decompose_address, at i386/i386.c:14954) 
PR middle-end/77959
	* expr.c (expand_expr_real_1) <case CONST_DECL>: For EXPAND_WRITE
	return a MEM.

	* gfortran.dg/pr77959.f90: New test.

From-SVN: r241182
 2016-10-14 21:36:58 +02:00
Thomas Preud'homme
4d0cdd0ce6 Move MEMMODEL_* from coretypes.h to memmodel.h 
2016-10-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * coretypes.h: Move MEMMODEL_* macros and enum memmodel definition
    into ...
    * memmodel.h: This file.
    * alias.c, asan.c, auto-inc-dec.c, bb-reorder.c, bt-load.c,
      caller-save.c, calls.c, ccmp.c, cfgbuild.c, cfgcleanup.c,
      cfgexpand.c, cfgloopanal.c, cfgrtl.c, cilk-common.c, combine.c,
      combine-stack-adj.c, common/config/aarch64/aarch64-common.c,
      common/config/arm/arm-common.c, common/config/bfin/bfin-common.c,
      common/config/c6x/c6x-common.c, common/config/i386/i386-common.c,
      common/config/ia64/ia64-common.c, common/config/nvptx/nvptx-common.c,
      compare-elim.c, config/aarch64/aarch64-builtins.c,
      config/aarch64/aarch64-c.c, config/aarch64/cortex-a57-fma-steering.c,
      config/arc/arc.c, config/arc/arc-c.c, config/arm/arm-builtins.c,
      config/arm/arm-c.c, config/avr/avr.c, config/avr/avr-c.c,
      config/avr/avr-log.c, config/bfin/bfin.c, config/c6x/c6x.c,
      config/cr16/cr16.c, config/cris/cris.c, config/darwin-c.c,
      config/darwin.c, config/epiphany/epiphany.c,
      config/epiphany/mode-switch-use.c,
      config/epiphany/resolve-sw-modes.c, config/fr30/fr30.c,
      config/frv/frv.c, config/ft32/ft32.c, config/h8300/h8300.c,
      config/i386/i386-c.c, config/i386/winnt.c, config/iq2000/iq2000.c,
      config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c,
      config/m68k/m68k.c, config/mcore/mcore.c,
      config/microblaze/microblaze.c, config/mmix/mmix.c,
      config/mn10300/mn10300.c, config/moxie/moxie.c,
      config/msp430/msp430.c, config/nds32/nds32-cost.c,
      config/nds32/nds32-intrinsic.c, config/nds32/nds32-md-auxiliary.c,
      config/nds32/nds32-memory-manipulation.c,
      config/nds32/nds32-predicates.c, config/nds32/nds32.c,
      config/nios2/nios2.c, config/nvptx/nvptx.c, config/pa/pa.c,
      config/pdp11/pdp11.c, config/rl78/rl78.c, config/rs6000/rs6000-c.c,
      config/rx/rx.c, config/s390/s390-c.c, config/s390/s390.c,
      config/sh/sh.c, config/sh/sh-c.c, config/sh/sh-mem.cc,
      config/sh/sh_treg_combine.cc, config/sol2.c, config/spu/spu.c,
      config/stormy16/stormy16.c, config/tilegx/tilegx.c,
      config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c,
      config/visium/visium.c, config/vms/vms-c.c, config/xtensa/xtensa.c,
      coverage.c, cppbuiltin.c, cprop.c, cse.c, cselib.c, dbxout.c, dce.c,
      df-core.c, df-problems.c, df-scan.c, dojump.c, dse.c, dwarf2asm.c,
      dwarf2cfi.c, dwarf2out.c, emit-rtl.c, except.c, explow.c, expmed.c,
      expr.c, final.c, fold-const.c, function.c, fwprop.c, gcse.c,
      ggc-page.c, haifa-sched.c, hsa-brig.c, hsa-gen.c, hw-doloop.c,
      ifcvt.c, init-regs.c, internal-fn.c, ira-build.c, ira-color.c,
      ira-conflicts.c, ira-costs.c, ira-emit.c, ira-lives.c, ira.c, jump.c,
      loop-doloop.c, loop-invariant.c, loop-iv.c, loop-unroll.c,
      lower-subreg.c, lra.c, lra-assigns.c, lra-coalesce.c,
      lra-constraints.c, lra-eliminations.c, lra-lives.c, lra-remat.c,
      lra-spills.c, mode-switching.c, modulo-sched.c, omp-low.c, passes.c,
      postreload-gcse.c, postreload.c, predict.c, print-rtl-function.c,
      recog.c, ree.c, reg-stack.c, regcprop.c, reginfo.c, regrename.c,
      reload.c, reload1.c, reorg.c, resource.c, rtl-chkp.c, rtl-tests.c,
      rtlanal.c, rtlhooks.c, sched-deps.c, sched-rgn.c, sdbout.c,
      sel-sched-ir.c, sel-sched.c, shrink-wrap.c, simplify-rtx.c,
      stack-ptr-mod.c, stmt.c, stor-layout.c, target-globals.c,
      targhooks.c, toplev.c, tree-nested.c, tree-outof-ssa.c,
      tree-profile.c, tree-ssa-coalesce.c, tree-ssa-ifcombine.c,
      tree-ssa-loop-ivopts.c, tree-ssa-loop.c, tree-ssa-reassoc.c,
      tree-ssa-sccvn.c, tree-vect-data-refs.c, ubsan.c, valtrack.c,
      var-tracking.c, varasm.c: Include memmodel.h.
    * genattrtab.c (write_header): Include memmodel.h in generated file.
    * genautomata.c (main): Likewise.
    * gengtype.c (open_base_files): Likewise.
    * genopinit.c (main): Likewise.
    * genconditions.c (write_header): Include memmodel.h earlier in
    generated file.
    * genemit.c (main): Likewise.
    * genoutput.c (output_prologue): Likewise.
    * genpeep.c (main): Likewise.
    * genpreds.c (write_insn_preds_c): Likewise.
    * genrecog.c (write_header): Likewise.
    * Makefile.in (PLUGIN_HEADERS): Include memmodel.h

    gcc/ada/
    * gcc-interface/utils2.c: Include memmodel.h.

    gcc/c-family/
    * c-cppbuiltin.c: Include memmodel.h.
    * c-opts.c: Likewise.
    * c-pragma.c: Likewise.
    * c-warn.c: Likewise.

    gcc/c/
    * c-typeck.c: Include memmodel.h.

    gcc/cp/
    * decl2.c: Include memmodel.h.
    * rtti.c: Likewise.

    gcc/fortran/
    * trans-intrinsic.c: Include memmodel.h.

    gcc/go/
    * go-backend.c: Include memmodel.h.

    libgcc/
    * libgcov-profiler.c: Replace MEMMODEL_* macros by their __ATOMIC_*
    equivalent.
    * config/tilepro/atomic.c: Likewise and stop casting model to
    enum memmodel.

From-SVN: r241121
 2016-10-13 14:17:52 +00:00
Jakub Jelinek
8813a647b5 tree-ssa.c (target_for_debug_bind, [...]): Use VAR_P and/or VAR_OR_FUNCTION_DECL_P macros. 
* tree-ssa.c (target_for_debug_bind, verify_phi_args,
	ssa_undefined_value_p, maybe_optimize_var): Use VAR_P and/or
	VAR_OR_FUNCTION_DECL_P macros.
	* tree-chkp.c (chkp_register_var_initializer, chkp_make_static_bounds,
	chkp_get_bounds_for_decl_addr, chkp_parse_array_and_component_ref,
	chkp_find_bounds_1): Likewise.
	* ipa-polymorphic-call.c (decl_maybe_in_construction_p): Likewise.
	* hsa-gen.c (get_symbol_for_decl): Likewise.
	* cgraphunit.c (check_global_declaration, analyze_functions,
	handle_alias_pairs, thunk_adjust, cgraph_node::expand_thunk):
	Likewise.
	* gimple-fold.c (can_refer_decl_in_current_unit_p,
	canonicalize_constructor_val, gimple_get_virt_method_for_vtable):
	Likewise.
	* tree.c (set_decl_section_name, copy_node_stat,
	need_assembler_name_p, free_lang_data_in_decl, find_decls_types_r,
	merge_dllimport_decl_attributes, handle_dll_attribute,
	decl_init_priority_insert, auto_var_in_fn_p, array_at_struct_end_p,
	verify_type): Likewise.
	* gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior,
	find_explicit_erroneous_behavior): Likewise.
	* sdbout.c (sdbout_toplevel_data, sdbout_late_global_decl): Likewise.
	* ipa.c (process_references): Likewise.
	* tree-chkp-opt.c (chkp_get_check_result): Likewise.
	* varasm.c (get_block_for_decl, use_blocks_for_decl_p, make_decl_rtl,
	notice_global_symbol, assemble_variable, mark_decl_referenced,
	build_constant_desc, output_constant_def_contents, do_assemble_alias,
	make_decl_one_only, default_section_type_flags,
	categorize_decl_for_section, default_encode_section_info): Likewise.
	* trans-mem.c (requires_barrier): Likewise.
	* gimple-expr.c (mark_addressable): Likewise.
	* cfgexpand.c (add_scope_conflicts_1, expand_one_var,
	expand_used_vars_for_block, clear_tree_used, stack_protect_decl_p,
	expand_debug_expr): Likewise.
	* tree-dump.c (dequeue_and_dump): Likewise.
	* ubsan.c (instrument_bool_enum_load): Likewise.
	* tree-pretty-print.c (print_declaration): Likewise.
	* simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.
	* tree-ssa-uninit.c (warn_uninitialized_vars): Likewise.
	* asan.c (asan_protect_global, instrument_derefs): Likewise.
	* tree-into-ssa.c (rewrite_stmt, maybe_register_def,
	pass_build_ssa::execute): Likewise.
	* var-tracking.c (var_debug_decl, track_expr_p): Likewise.
	* tree-ssa-loop-ivopts.c (force_expr_to_var_cost, split_address_cost):
	Likewise.
	* ipa-split.c (test_nonssa_use, consider_split, mark_nonssa_use):
	Likewise.
	* tree-inline.c (insert_debug_decl_map, remap_ssa_name,
	can_be_nonlocal, remap_decls, copy_debug_stmt,
	initialize_inlined_parameters, add_local_variables,
	reset_debug_binding, replace_locals_op): Likewise.
	* dse.c (can_escape): Likewise.
	* ipa-devirt.c (compare_virtual_tables, referenced_from_vtable_p):
	Likewise.
	* tree-diagnostic.c (default_tree_printer): Likewise.
	* tree-streamer-in.c (unpack_ts_decl_common_value_fields,
	unpack_ts_decl_with_vis_value_fields,
	lto_input_ts_decl_common_tree_pointers): Likewise.
	* builtins.c (builtin_save_expr, fold_builtin_expect,
	readonly_data_expr): Likewise.
	* tree-ssa-structalias.c (new_var_info, get_constraint_for_ssa_var,
	create_variable_info_for, set_uids_in_ptset, visit_loadstore):
	Likewise.
	* gimple-streamer-out.c (output_gimple_stmt): Likewise.
	* gimplify.c (force_constant_size, gimplify_bind_expr,
	gimplify_decl_expr, gimplify_var_or_parm_decl,
	gimplify_compound_lval, gimplify_init_constructor,
	gimplify_modify_expr, gimplify_asm_expr, gimplify_oacc_declare,
	gimplify_type_sizes): Likewise.
	* cgraphbuild.c (record_reference, record_type_list, mark_address,
	mark_load, mark_store, pass_build_cgraph_edges::execute): Likewise.
	* tree-ssa-live.c (mark_all_vars_used_1, remove_unused_scope_block_p,
	remove_unused_locals): Likewise.
	* tree-ssa-alias.c (ptr_deref_may_alias_decl_p, ptrs_compare_unequal,
	ref_maybe_used_by_call_p_1, call_may_clobber_ref_p_1): Likewise.
	* function.c (instantiate_expr, instantiate_decls_1,
	setjmp_vars_warning, add_local_decl): Likewise.
	* alias.c (ao_ref_from_mem, get_alias_set, compare_base_symbol_refs):
	Likewise.
	* tree-stdarg.c (find_va_list_reference, va_list_counter_struct_op,
	va_list_ptr_read, va_list_ptr_write, check_all_va_list_escapes,
	optimize_va_list_gpr_fpr_size): Likewise.
	* tree-nrv.c (pass_nrv::execute): Likewise.
	* tsan.c (instrument_expr): Likewise.
	* tree-ssa-dce.c (remove_dead_stmt): Likewise.
	* vtable-verify.c (verify_bb_vtables): Likewise.
	* tree-dfa.c (ssa_default_def, set_ssa_default_def,
	get_ref_base_and_extent): Likewise.
	* toplev.c (wrapup_global_declaration_1, wrapup_global_declaration_2):
	Likewise.
	* tree-sra.c (static bool constant_decl_p, find_var_candidates,
	analyze_all_variable_accesses): Likewise.
	* tree-nested.c (get_nonlocal_debug_decl,
	convert_nonlocal_omp_clauses, note_nonlocal_vla_type,
	note_nonlocal_block_vlas, convert_nonlocal_reference_stmt,
	get_local_debug_decl, convert_local_omp_clauses,
	convert_local_reference_stmt, nesting_copy_decl, remap_vla_decls):
	Likewise.
	* tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Likewise.
	* stmt.c (decl_overlaps_hard_reg_set_p): Likewise.
	* dbxout.c (dbxout_late_global_decl, dbxout_type_fields,
	dbxout_symbol, dbxout_common_check): Likewise.
	* expr.c (expand_assignment, expand_expr_real_2, expand_expr_real_1,
	string_constant): Likewise.
	* hsa.c (hsa_get_declaration_name): Likewise.
	* passes.c (rest_of_decl_compilation): Likewise.
	* tree-ssanames.c (make_ssa_name_fn): Likewise.
	* tree-streamer-out.c (pack_ts_decl_common_value_fields,
	pack_ts_decl_with_vis_value_fields,
	write_ts_decl_common_tree_pointers): Likewise.
	* stor-layout.c (place_field): Likewise.
	* symtab.c (symtab_node::maybe_create_reference,
	symtab_node::verify_base, symtab_node::make_decl_local,
	symtab_node::copy_visibility_from,
	symtab_node::can_increase_alignment_p): Likewise.
	* dwarf2out.c (add_var_loc_to_decl, tls_mem_loc_descriptor,
	decl_by_reference_p, reference_to_unused, rtl_for_decl_location,
	fortran_common, add_location_or_const_value_attribute,
	add_scalar_info, add_linkage_name, set_block_abstract_flags,
	local_function_static, gen_variable_die, dwarf2out_late_global_decl,
	optimize_one_addr_into_implicit_ptr,
	optimize_location_into_implicit_ptr): Likewise.
	* gimple-low.c (record_vars_into): Likewise.
	* ipa-visibility.c (update_vtable_references): Likewise.
	* tree-ssa-address.c (fixed_address_object_p, copy_ref_info):
	Likewise.
	* lto-streamer-out.c (tree_is_indexable, get_symbol_initial_value,
	DFS::DFS_write_tree_body, write_symbol): Likewise.
	* langhooks.c (lhd_warn_unused_global_decl,
	lhd_set_decl_assembler_name): Likewise.
	* attribs.c (decl_attributes): Likewise.
	* except.c (output_ttype): Likewise.
	* varpool.c (varpool_node::get_create, ctor_for_folding,
	varpool_node::assemble_decl, varpool_node::create_alias): Likewise.
	* fold-const.c (fold_unary_loc): Likewise.
	* ipa-prop.c (ipa_compute_jump_functions_for_edge,
	ipa_find_agg_cst_from_init): Likewise.
	* omp-low.c (expand_omp_regimplify_p, expand_omp_taskreg,
	expand_omp_target, lower_omp_regimplify_p,
	grid_reg_assignment_to_local_var_p, grid_remap_prebody_decls,
	find_link_var_op): Likewise.
	* tree-chrec.c (chrec_contains_symbols): Likewise.
	* tree-cfg.c (verify_address, verify_expr, verify_expr_location_1,
	gimple_duplicate_bb, move_stmt_op, replace_block_vars_by_duplicates,
	execute_fixup_cfg): Likewise.

From-SVN: r240900
 2016-10-09 13:19:48 +02:00
Bernd Schmidt
1edfde32a8 re PR tree-optimization/77880 (out of memory building recent LLVM on ppc64le with -O3) 
PR tree-optimization/77880
	* expr.c (by_pieces_ninsns): Use unsigned HOST_WIDE_INT where
	necessary.

From-SVN: r240862
 2016-10-07 12:16:55 +00:00
Jakub Jelinek
aaa1b10f54 * hsa-gen.c (hsa_op_immed::hsa_op_immed Use CONSTRUCTOR_NELTS (...) 
instead of vec_safe_length (CONSTRUCTOR_ELTS (...)).
	(gen_hsa_ctor_assignment): Likewise.
	* print-tree.c (print_node): Likewise.
	* tree-dump.c (dequeue_and_dump): Likewise.
	* tree-sra.c (sra_modify_constructor_assign): Likewise.
	* expr.c (store_constructor): Likewise.
	* fold-const.c (operand_equal_p): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* hsa-brig.c (hsa_op_immed::emit_to_buffer): Likewise.
	* ipa-icf-gimple.c (func_checker::compare_operand): Likewise.
cp/
	* typeck2.c (process_init_constructor_record): Use
	CONSTRUCTOR_NELTS (...) instead of
	vec_safe_length (CONSTRUCTOR_ELTS (...)).
	* decl.c (reshape_init_r): Likewise.
	(check_initializer): Likewise.
ada/
	* gcc-interface/decl.c (gnat_to_gnu_entity): Use
	CONSTRUCTOR_NELTS (...) instead of
	vec_safe_length (CONSTRUCTOR_ELTS (...)).

From-SVN: r240390
 2016-09-23 09:34:43 +02:00
Richard Biener
c813f2686a re PR fortran/77678 (ICE in fold_read_from_constant_string, at fold-const.c:13706) 
2016-09-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/77678
	* expr.c (expand_expr_real_1): Guard array access against negative
	offset.

From-SVN: r240351
 2016-09-22 12:15:38 +00:00
Jason Merrill
146ec50fd5 Add inline functions for various bitwise operations. 
* hwint.h (least_bit_hwi, pow2_or_zerop, pow2p_hwi, ctz_or_zero):
	New.
	* hwint.c (exact_log2): Use pow2p_hwi.
	(ctz_hwi, ffs_hwi): Use least_bit_hwi.
	* alias.c (memrefs_conflict_p): Use pow2_or_zerop.
	* builtins.c (get_object_alignment_2, get_object_alignment)
	(get_pointer_alignment, fold_builtin_atomic_always_lock_free): Use
	least_bit_hwi.
	* calls.c (compute_argument_addresses, store_one_arg): Use
	least_bit_hwi.
	* cfgexpand.c (expand_one_stack_var_at): Use least_bit_hwi.
	* combine.c (force_to_mode): Use least_bit_hwi.
	* emit-rtl.c (set_mem_attributes_minus_bitpos, adjust_address_1):
	Use least_bit_hwi.
	* expmed.c (synth_mult, expand_divmod): Use ctz_or_zero, ctz_hwi.
	(init_expmed_one_conv): Use pow2p_hwi.
	* fold-const.c (round_up_loc, round_down_loc): Use pow2_or_zerop.
	(fold_binary_loc): Use pow2p_hwi.
	* function.c (assign_parm_find_stack_rtl): Use least_bit_hwi.
	* gimple-fold.c (gimple_fold_builtin_memory_op): Use pow2p_hwi.
	* gimple-ssa-strength-reduction.c (replace_ref): Use least_bit_hwi.
	* hsa-gen.c (gen_hsa_addr_with_align, hsa_bitmemref_alignment):
	Use least_bit_hwi.
	* ipa-cp.c (ipcp_alignment_lattice::meet_with_1): Use least_bit_hwi.
	* ipa-prop.c (ipa_modify_call_arguments): Use least_bit_hwi.
	* omp-low.c (oacc_loop_fixed_partitions)
	(oacc_loop_auto_partitions): Use least_bit_hwi.
	* rtlanal.c (nonzero_bits1): Use ctz_or_zero.
	* stor-layout.c (place_field): Use least_bit_hwi.
	* tree-pretty-print.c (dump_generic_node): Use pow2p_hwi.
	* tree-sra.c (build_ref_for_offset): Use least_bit_hwi.
	* tree-ssa-ccp.c (ccp_finalize): Use least_bit_hwi.
	* tree-ssa-math-opts.c (bswap_replace): Use least_bit_hwi.
	* tree-ssa-strlen.c (handle_builtin_memcmp): Use pow2p_hwi.
	* tree-vect-data-refs.c (vect_analyze_group_access_1)
	(vect_grouped_store_supported, vect_grouped_load_supported)
	(vect_permute_load_chain, vect_shift_permute_load_chain)
	(vect_transform_grouped_load): Use pow2p_hwi.
	* tree-vect-generic.c (expand_vector_divmod): Use ctz_or_zero.
	* tree-vect-patterns.c (vect_recog_divmod_pattern): Use ctz_or_zero.
	* tree-vect-stmts.c (vectorizable_mask_load_store): Use
	least_bit_hwi.
	* tsan.c (instrument_expr): Use least_bit_hwi.
	* var-tracking.c (negative_power_of_two_p): Use pow2_or_zerop.

From-SVN: r240194
 2016-09-16 15:20:44 -04:00
Marek Polacek
191816a36b re PR c/7652 (-Wswitch-break : Warn if a switch case falls through) 
PR c/7652
gcc/
	* alias.c (find_base_value): Adjust fall through comment.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* combine.c (find_split_point): Likewise.
	(expand_compound_operation): Likewise.  Add FALLTHRU.
	(make_compound_operation): Adjust fall through comment.
	(canon_reg_for_combine): Add FALLTHRU.
	(force_to_mode): Adjust fall through comment.
	(simplify_shift_const_1): Likewise.
	(simplify_comparison): Likewise.
	* config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Add
	FALLTHRU.
	* config/aarch64/predicates.md: Likewise.
	* config/i386/i386.c (function_arg_advance_32): Likewise.
	(ix86_gimplify_va_arg): Likewise.
	(print_reg): Likewise.
	(ix86_print_operand): Likewise.
	(ix86_build_const_vector): Likewise.
	(ix86_expand_branch): Likewise.
	(ix86_sched_init_global): Adjust fall through comment.
	(ix86_expand_args_builtin): Add FALLTHRU.
	(ix86_expand_builtin): Likewise.
	(ix86_expand_vector_init_one_var): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.
	(rs6000_adjust_cost): Likewise.
	(insn_must_be_first_in_group): Likewise.
	* config/rs6000/rs6000.md: Likewise.  Adjust fall through comment.
	* dbxout.c (dbxout_symbol): Adjust fall through comment.
	* df-scan.c (df_uses_record): Likewise.
	* dojump.c (do_jump): Add FALLTHRU.
	* dwarf2out.c (mem_loc_descriptor): Likewise.  Adjust fall through
	comment.
	(resolve_args_picking_1): Adjust fall through comment.
	(loc_list_from_tree_1): Likewise.
	* expmed.c (make_tree): Likewise.
	* expr.c (expand_expr_real_2): Add FALLTHRU.
	(expand_expr_real_1): Likewise.  Adjust fall through comment.
	* fold-const.c (const_binop): Adjust fall through comment.
	(fold_truth_not_expr): Likewise.
	(fold_cond_expr_with_comparison): Add FALLTHRU.
	(fold_binary_loc): Likewise.
	(contains_label_1): Adjust fall through comment.
	(multiple_of_p): Likewise.
	* gcov-tool.c (process_args): Add FALLTHRU.
	* genattrtab.c (check_attr_test): Likewise.
	(write_test_expr): Likewise.
	* genconfig.c (walk_insn_part): Likewise.
	* genpreds.c (validate_exp): Adjust fall through comment.
	(needs_variable): Likewise.
	* gensupport.c (get_alternatives_number): Add FALLTHRU.
	(subst_dup): Likewise.
	* gimple-pretty-print.c (dump_gimple_assign): Likewise.
	* gimplify.c (gimplify_addr_expr): Adjust fall through comment.
	(gimplify_scan_omp_clauses): Add FALLTHRU.
	(goa_stabilize_expr): Likewise.
	* graphite-isl-ast-to-gimple.c (substitute_ssa_name): Adjust fall
	through comment.
	* hsa-gen.c (get_address_from_value): Likewise.
	* ipa-icf.c (sem_function::hash_stmt): Likewise.
	* ira.c (ira_setup_alts): Add FALLTHRU.
	* lra-eliminations.c (lra_eliminate_regs_1): Adjust fall through
	comment.
	* lto-streamer-out.c (lto_output_tree_ref): Add FALLTHRU.
	* opts.c (common_handle_option): Likewise.
	* read-rtl.c (read_rtx_code): Likewise.
	* real.c (round_for_format): Likewise.
	* recog.c (asm_operand_ok): Likewise.
	* reginfo.c (reg_scan_mark_refs): Adjust fall through comment.
	* reload1.c (set_label_offsets): Likewise.
	(eliminate_regs_1): Likewise.
	(reload_reg_reaches_end_p): Likewise.
	* rtlanal.c (commutative_operand_precedence): Add FALLTHRU.
	(rtx_cost): Likewise.
	* sched-rgn.c (is_exception_free): Likewise.
	* simplify-rtx.c (simplify_rtx): Adjust fall through comment.
	* stor-layout.c (int_mode_for_mode): Likewise.
	* toplev.c (print_to_asm_out_file): Likewise.
	(print_to_stderr): Likewise.
	* tree-cfg.c (gimple_verify_flow_info): Likewise.
	* tree-chrec.c (chrec_fold_plus_1): Add FALLTHRU.
	(chrec_fold_multiply): Likewise.
	(evolution_function_is_invariant_rec_p): Likewise.
	(for_each_scev_op): Likewise.
	* tree-data-ref.c (siv_subscript_p): Likewise.
	(get_references_in_stmt): Likewise.
	* tree.c (find_placeholder_in_expr): Adjust fall through comment.
	(substitute_in_expr): Likewise.
	(type_cache_hasher::equal): Likewise.
	(walk_type_fields): Likewise.
	* var-tracking.c (adjust_mems): Add FALLTHRU.
	(set_dv_changed): Adjust fall through comment.
	* varasm.c (default_function_section): Add FALLTHRU.
gcc/c-family/
	* c-common.c (scalar_to_vector): Adjust fall through comment.
	* c-opts.c (c_common_handle_option): Likewise.
	* c-pragma.c (handle_pragma_pack): Add FALLTHRU.
	* c-pretty-print.c (c_pretty_printer::postfix_expression): Adjust
	fall through comment.
	* cilk.c (extract_free_variables): Add FALLTHRU.
gcc/c/
	* c-parser.c (c_parser_external_declaration): Add FALLTHRU.
	(c_parser_postfix_expression): Likewise.
	* c-typeck.c (build_unary_op): Adjust fall through comment.
	(c_mark_addressable): Likewise.
gcc/cp/
	* call.c (add_builtin_candidate): Add FALLTHRU.
	(build_integral_nontype_arg_conv): Adjust fall through comment.
	(build_new_op_1): Add FALLTHRU.
	(convert_like_real): Adjust fall through comment.
	* class.c (fixed_type_or_null): Likewise.
	* constexpr.c (cxx_eval_constant_expression): Likewise.
	(potential_constant_expression_1): Likewise.  Add FALLTHRU.
	* cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment.
	(cp_fold): Add FALLTHRU.
	* cvt.c (build_expr_type_conversion): Adjust fall through comment.
	* cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU.
	(pp_cxx_qualified_id): Likewise.
	(cxx_pretty_printer::constant): Adjust fall through comment.
	(cxx_pretty_printer::primary_expression): Add FALLTHRU.
	(pp_cxx_pm_expression): Adjust fall through comment.
	(cxx_pretty_printer::expression): Add FALLTHRU.
	(cxx_pretty_printer::declaration_specifiers): Reformat code.
	(pp_cxx_type_specifier_seq): Adjust fall through comment.
	(pp_cxx_ptr_operator): Likewise.  Add FALLTHRU.
	* error.c (dump_type): Adjust fall through comment.
	(dump_decl): Likewise.
	* mangle.c (write_type): Likewise.
	* method.c (synthesized_method_walk): Add FALLTHRU.
	* name-lookup.c (arg_assoc_type): Likewise.
	* parser.c (cp_lexer_print_token): Adjust fall through comment.
	(cp_parser_primary_expression): Add FALLTHRU.
	(cp_parser_operator): Likewise.
	* pt.c (find_parameter_packs_r): Likewise.
	(tsubst_aggr_type): Adjust fall through comment.
	* semantics.c (finish_omp_clauses): Add FALLTHRU.
	* tree.c (lvalue_kind): Likewise.
gcc/fortran/
	* decl.c (match_attr_spec): Add FALLTHRU.
	* primary.c (match_arg_list_function): Likewise.
	* resolve.c (resolve_operator): Adjust fall through comment.
	(fixup_charlen): Add FALLTHRU.
	(resolve_allocate_expr): Adjust fall through comment.
	* trans-array.c (gfc_conv_ss_startstride): Add FALLTHRU.
	* trans-intrinsic.c (gfc_conv_intrinsic_len): Adjust fall through
	comment.
gcc/java/
	* expr.c (java_truthvalue_conversion): Adjust fall through comment.
	* jcf-io.c (verify_constant_pool): Likewise.
	* typeck.c (promote_type): Likewise.
gcc/objc/
	* objc-encoding.c (encode_type): Add FALLTHRU.
libcpp/
	* lex.c (search_line_fast): Add FALLTHRU.
	(_cpp_lex_direct): Likewise.
	(cpp_token_val_index): Adjust fall through comment.
	* macro.c (parse_params): Add FALLTHRU.
	* pch.c (count_defs): Adjust fall through comment.
	(write_defs): Likewise.
libiberty/
	* cp-demangle.c (d_print_mod): Add FALLTHRU.

From-SVN: r239410
 2016-08-12 10:30:47 +00:00
Bernd Edlinger
ec1e2a4097 defaults.h (LOG2_BITS_PER_UNIT): Move from here... 
2016-07-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * defaults.h (LOG2_BITS_PER_UNIT): Move from here...
        * tree.h (LOG2_BITS_PER_UNIT): ...to here.
        (BITS_PER_UNIT_LOG): Remove.
        (int_bit_position): Use LOG2_BITS_PER_UNIT instead of BITS_PER_UNIT_LOG.
        * expr.c (expand_assignment): Likewise. 
        * stor-layout.c (initialize_sizetypes): Likewise.

c-family:
2016-07-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (check_user_alignment): Use LOG2_BITS_PER_UNIT instead of
        BITS_PER_UNIT_LOG.

From-SVN: r238800
 2016-07-27 20:35:35 +00:00
Uros Bizjak
fecfbfa4a2 builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1... 
* builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1,
	HOST_WIDE_INT_1U instead of (unsigned HOST_WIDE_INT) 1,
	HOST_WIDE_INT_M1 instead of (HOST_WIDE_INT) -1 and
	HOST_WIDE_INT_M1U instead of (unsigned HOST_WIDE_INT) -1.
	* combine.c: Ditto.
	* cse.c: Ditto.
	* dojump.c: Ditto.
	* double-int.c: Ditto.
	* dse.c: Ditto.
	* dwarf2out.c: Ditto.
	* expmed.c: Ditto.
	* expr.c: Ditto.
	* fold-const.c: Ditto.
	* function.c: Ditto.
	* fwprop.c: Ditto.
	* genmodes.c: Ditto.
	* hwint.c: Ditto.
	* hwint.h: Ditto.
	* ifcvt.c: Ditto.
	* loop-doloop.c: Ditto.
	* loop-invariant.c: Ditto.
	* loop-iv.c: Ditto.
	* match.pd: Ditto.
	* optabs.c: Ditto.
	* real.c: Ditto.
	* reload.c: Ditto.
	* rtlanal.c: Ditto.
	* simplify-rtx.c: Ditto.
	* stor-layout.c: Ditto.
	* toplev.c: Ditto.
	* tree-ssa-loop-ivopts.c: Ditto.
	* tree-vect-generic.c: Ditto.
	* tree-vect-patterns.c: Ditto.
	* tree.c: Ditto.
	* tree.h: Ditto.
	* ubsan.c: Ditto.
	* varasm.c: Ditto.
	* wide-int-print.cc: Ditto.
	* wide-int.cc: Ditto.
	* wide-int.h: Ditto.

From-SVN: r238481
 2016-07-19 18:40:55 +02:00
Kyrylo Tkachov
d6f7c125d8 [expr.c] PR middle-end/71700: zero-extend sub-word value when widening constructor element 
PR middle-end/71700
	* expr.c (store_constructor): Mask sign-extended bits when widening
	sub-word constructor element at the start of a word.

	* gcc.c-torture/execute/pr71700.c: New test.

From-SVN: r238248
 2016-07-12 15:00:28 +00:00
Bernd Edlinger
25b75a48d2 Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG. 
2016-07-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG.
        * tree-core.h (tree_base::nothrow_flag): Adjust comment.
        (tree_type_common::lang_flag_7): New.
        (tree_type_common::spare): Reduce size.
        * tree.h (TYPE_ALIGN_OK): Remove.
        (TYPE_LANG_FLAG_7): New.
        (get_inner_reference): Adjust header.
        * print-tree.c (print_node): Adjust.
        * expr.c (get_inner_reference): Remove parameter keep_aligning.
        (get_bit_range, expand_assignment, expand_expr_addr_expr_1): Adjust
        calls to get_inner_reference.
        (expand_expr_real_1): Adjust call to get_inner_reference.  Remove
        handling of TYPE_ALIGN_OK.
        * builtins.c (get_object_alignment_2): Adjust call to
        get_inner_reference.  Remove handling of VIEW_CONVERT_EXPR.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Remove handling of
        TYPE_ALIGN_OK.
        * asan.c (instrument_derefs): Adjust calls to get_inner_reference.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * dbxout.c (dbxout_expand_expr): Likewise.
        * dwarf2out.c (loc_list_for_address_of_addr_expr_of_indirect_ref,
        loc_list_from_tree, fortran_common): Likewise.
        * fold-const.c (optimize_bit_field_compare,
        decode_field_reference, fold_unary_loc, fold_comparison,
        split_address_to_core_and_offset): Likewise.
        * gimple-laddress.c (execute): Likewise.
        * gimple-ssa-strength-reduction.c (slsr_process_ref): Likewise.
        * gimplify.c (gimplify_scan_omp_clauses): Likewise.
        * hsa-gen.c (gen_hsa_addr): Likewise.
        * simplifx-rtx.c (delegitimize_mem_from_attrs): Likewise.
        * tsan.c (instrument_expr): Likewise.
        * ubsan.c (instrument_bool_enum_load, instrument_object_size): Likewise.
        * tree.c (verify_type_variant): Remove handling of TYPE_ALIGN_OK.
        * tree-affine.c (tree_to_aff_combination,
        get_inner_reference_aff): Adjust calls to get_inner_reference.
        * tree-data-ref.c (split_constant_offset_1,
        dr_analyze_innermost): Likewise.
        * tree-scalar-evolution.c (interpret_rhs_expr): Likewise.
        * tree-sra.c (ipa_sra_check_caller): Likewise.
        * tree-ssa-loop-ivopts.c (split_address_cost): Likewise.
        * tree-ssa-math-opts.c (find_bswap_or_nop_load,
        bswap_replace): Likewise.
        * tree-vect-data-refs.c (vect_check_gather,
        vect_analyze_data_refs): Likewise.
        * config/mips/mips.c (r10k_safe_mem_expr_p): Likewise.
        * config/pa/pa.c (pa_emit_move_sequence): Remove handling of
        TYPE_ALIGN_OK.

ada:
2016-07-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG.
        * gcc-interface/ada-tree.h (TYPE_ALIGN_OK): Define.
        * gcc-interface/trans.c (Attribute_to_gnu): Adjust call to
        get_inner_reference.
        * gcc-interface/utils2.c (build_unary_op): Likewise.

From-SVN: r238210
 2016-07-11 15:02:12 +00:00
Richard Biener
585334d41d re PR middle-end/71310 (Bitfields cause load hit store with smaller store and larger load) 
2016-06-14  Richard Biener  <rguenther@suse.de>

	PR middle-end/71310
	PR bootstrap/71510
	* expr.h (get_bit_range): Declare.
	* expr.c (get_bit_range): Export.
	* fold-const.c (optimize_bit_field_compare): Use get_bit_range and
	word_mode again to constrain the bitfield access.

From-SVN: r237426
 2016-06-14 07:26:52 +00:00
John David Anglin
603e5a828b expr.c (move_by_pieces_d::generate): Mark mode parameter with ATTRIBUTE_UNUSED. 
* expr.c (move_by_pieces_d::generate): Mark mode parameter with
	ATTRIBUTE_UNUSED.

From-SVN: r237110
 2016-06-05 20:42:40 +00:00
Bernd Schmidt
36b85e4328 re PR tree-optimization/52171 (memcmp/strcmp/strncmp can be optimized when the result is tested for [in]equality with 0) 
PR tree-optimization/52171
        * builtins.c (expand_cmpstrn_or_cmpmem): Delete, moved elsewhere.
        (expand_builtin_memcmp): New arg RESULT_EQ.  All callers changed.
        Look for constant strings.  Move some code to emit_block_cmp_hints
        and use it.
        * builtins.def (BUILT_IN_MEMCMP_EQ): New.
        * defaults.h (COMPARE_MAX_PIECES): New macro.
        * expr.c (move_by_pieces_d, store_by_pieces_d): Remove old structs.
        (move_by_pieces_1, store_by_pieces_1, store_by_pieces_2): Remvoe.
        (clear_by_pieces_1): Don't declare.  Move definition before use.
        (can_do_by_pieces): New static function.
        (can_move_by_pieces): Use it.  Return bool.
        (by_pieces_ninsns): Renamed from move_by_pieces_ninsns.  New arg
        OP.  All callers changed.  Handle COMPARE_BY_PIECES.
        (class pieces_addr); New.
        (pieces_addr::pieces_addr, pieces_addr::decide_autoinc,
        pieces_addr::adjust, pieces_addr::increment_address,
        pieces_addr::maybe_predec, pieces_addr::maybe_postinc): New member
        functions for it.
        (class op_by_pieces_d): New.
        (op_by_pieces_d::op_by_pieces_d, op_by_pieces_d::run): New member
        functions for it.
        (class move_by_pieces_d, class compare_by_pieces_d,
        class store_by_pieces_d): New subclasses of op_by_pieces_d.
        (move_by_pieces_d::prepare_mode, move_by_pieces_d::generate,
        move_by_pieces_d::finish_endp, store_by_pieces_d::prepare_mode,
        store_by_pieces_d::generate, store_by_pieces_d::finish_endp,
        compare_by_pieces_d::generate, compare_by_pieces_d::prepare_mode,
        compare_by_pieces_d::finish_mode): New member functions.
        (compare_by_pieces, emit_block_cmp_via_cmpmem): New static
        functions.
        (expand_cmpstrn_or_cmpmem): Moved here from builtins.c.
        (emit_block_cmp_hints): New function.
        (move_by_pieces, store_by_pieces, clear_by_pieces): Rewrite to just
        use the newly defined classes.
        * expr.h (by_pieces_constfn): New typedef.
        (can_store_by_pieces, store_by_pieces): Use it in arg declarations.
        (emit_block_cmp_hints, expand_cmpstrn_or_cmpmem): Declare.
        (move_by_pieces_ninsns): Don't declare.
        (can_move_by_pieces): Change return value to bool.
        * target.def (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Update docs.
        (compare_by_pieces_branch_ratio): New hook.
        * target.h (enum by_pieces_operation): Add COMPARE_BY_PIECES.
        (by_pieces_ninsns): Declare.
        * targethooks.c (default_use_by_pieces_infrastructure_p): Handle
        COMPARE_BY_PIECES.
        (default_compare_by_pieces_branch_ratio): New function.
        * targhooks.h (default_compare_by_pieces_branch_ratio): Declare.
        * doc/tm.texi.in (STORE_MAX_PIECES, COMPARE_MAX_PIECES): Document.
        * doc/tm.texi: Regenerate.
        * tree-ssa-strlen.c: Include "builtins.h".
        (handle_builtin_memcmp): New static function.
        (strlen_optimize_stmt): Call it for BUILT_IN_MEMCMP.
        * tree.c (build_common_builtin_nodes): Create __builtin_memcmp_eq.

testsuite/
        PR tree-optimization/52171
        * gcc.dg/pr52171.c: New test.
        * gcc.target/i386/pr52171.c: New test.

From-SVN: r237069
 2016-06-03 14:20:53 +00:00
Richard Guenther
483c642948 re PR target/29756 (SSE intrinsics hard to use without redundant temporaries appearing) 
2016-05-20  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/29756
	* tree.def (BIT_INSERT_EXPR): New tcc_expression tree code.
	* expr.c (expand_expr_real_2): Handle BIT_INSERT_EXPR.
	* fold-const.c (operand_equal_p): Likewise.
	(fold_ternary_loc): Add constant folding of BIT_INSERT_EXPR.
	* gimplify.c (gimplify_expr): Handle BIT_INSERT_EXPR.
	* tree-inline.c (estimate_operator_cost): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-operands.c (get_expr_operands): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* gimple-pretty-print.c (dump_ternary_rhs): Likewise.
	* gimple.c (get_gimple_rhs_num_ops): Handle BIT_INSERT_EXPR.
	* tree-cfg.c (verify_gimple_assign_ternary): Verify BIT_INSERT_EXPR.

	* tree-ssa.c (non_rewritable_lvalue_p): We can rewrite
	vector inserts using BIT_FIELD_REF or MEM_REF on the lhs.
	(execute_update_addresses_taken): Do it.

	* gcc.dg/tree-ssa/vector-6.c: New testcase.

From-SVN: r236501
 2016-05-20 09:17:16 +00:00
Eric Botcazou
ee516de9b3 builtins.c (expand_builtin_memcmp): Do not emit the call here. 
* builtins.c (expand_builtin_memcmp): Do not emit the call here.
	(expand_builtin_trap): Emit a regular call.
	(set_builtin_user_assembler_name): Remove obsolete cases.
	* dse.c (scan_insn): Adjust.
	* except.c: Include calls.h.
	(sjlj_emit_function_enter): If DONT_USE_BUILTIN_SETJMP is defined,
	emit a regular call to setjmp.
	* expr.c (emit_block_move_hints): Call emit_block_copy_via_libcall.
	(block_move_libcall_safe_for_call_parm): Use memcpy builtin.
	(emit_block_move_via_libcall): Delete.
	(block_move_fn): Delete.
	(init_block_move_fn): Likewise.
	(emit_block_move_libcall_fn): Likewise.
	(emit_block_op_via_libcall): New function.
	(set_storage_via_libcall): Tidy up and use memset builtin.
	(block_clear_fn): Delete.
	(init_block_clear_fn): Likewise.
	(clear_storage_libcall_fn): Likewise.
	(expand_assignment): Call emit_block_move_via_libcall.
	Do not include gt-expr.h.
	* expr.h (emit_block_op_via_libcall): Declare.
	(emit_block_copy_via_libcall): New inline function.
	(emit_block_move_via_libcall): Likewise.
	(emit_block_comp_via_libcall): Likewise.
	(block_clear_fn): Delete.
	(init_block_move_fn): Likewise.
	(init_block_clear_fn): Likewise.
	(emit_block_move_via_libcall): Likewise.
	(set_storage_via_libcall): Add default parameter value.
	* libfuncs.h (enum libfunc_index): Remove obsolete values.
	(abort_libfunc): Delete.
	(memcpy_libfunc): Likewise.
	(memmove_libfunc): Likewise.
	(memcmp_libfunc): Likewise.
	(memset_libfunc): Likewise.
	(setbits_libfunc): Likewise.
	(setjmp_libfunc): Likewise.
	(longjmp_libfunc): Likewise.
	(profile_function_entry_libfunc): Likewise.
	(profile_function_exit_libfunc): Likewise.
	(gcov_flush_libfunc): Likewise.
	* optabs-libfuncs.c (build_libfunc_function): Set DECL_ARTIFICIAL
	and DECL_VISIBILITY on the declaration.
	(init_optabs): Do not initialize obsolete libfuncs.
	* optabs.c (prepare_cmp_insn): Call emit_block_comp_via_libcall.
	* tree-core.h (ECF_RET1): Define.
	(ECF_TM_PURE): Adjust.
	(ECF_TM_BUILTIN): Likewise.
	* tree.c (set_call_expr_flags): Deal with ECF_RET1.
	(build_common_builtin_nodes): Initialize abort builtin.
	Add ECF_RET1 on memcpy, memmove and memset builtins.
	Pass final flags for alloca and alloca_with_align builtins.
	* config/alpha/alpha.c (alpha_init_libfuncs): Do not initialize
	obsolete builtins.
	* config/ia64/ia64.c (ia64_vms_init_libfuncs): Likewise.
	* config/i386/i386.c (ix86_expand_set_or_movmem): Adjust call to
	set_storage_via_libcall and call emit_block_copy_via_libcall.

From-SVN: r236195
 2016-05-13 08:49:20 +00:00
Richard Sandiford
697e0b28cc Add a wi::to_wide helper function 
As Richard says, we ought to have a convenient way of converting
an INTEGER_CST to a wide_int of a particular precision without
having to extract the sign of the INTEGER_CST's type each time.
This patch adds a wi::to_wide helper for that, alongside the
existing wi::to_offset and wi::to_widest.

Tested on x86_64-linux-gnu and aarch64-linux-gnu.

gcc/
	* tree.h (wi::to_wide): New function.
	* expr.c (expand_expr_real_1): Use wi::to_wide.
	* fold-const.c (int_const_binop_1): Likewise.
	(extract_muldiv_1): Likewise.

gcc/c-family/
	* c-common.c (shorten_compare): Use wi::to_wide.

From-SVN: r235721
 2016-05-02 09:40:09 +00:00
Richard Sandiford
8de73453a4 Support << and >> for offset_int and widest_int 
Following on from the comparison patch, I think it makes sense to
support << and >> for offset_int (int128_t) and widest_int (intNNN_t),
with >> being arithmetic shift.  It doesn't make sense to use
logical right shift on a potentially negative offset_int, since
the precision of 128 bits has no meaning on the target.

Tested on x86_64-linux-gnu and aarch64-linux-gnu.

gcc/
	* wide-int.h: Update offset_int and widest_int documentation.
	(WI_SIGNED_SHIFT_RESULT): New macro.
	(wi::binary_shift): Define signed_shift_result_type for
	shifts on offset_int- and widest_int-like types.
	(generic_wide_int): Support <<= and >>= if << and >> are supported.
	* tree.h (int_bit_position): Use shift operators instead of wi::
	 shifts.
	* alias.c (adjust_offset_for_component_ref): Likewise.
	* expr.c (get_inner_reference): Likewise.
	* fold-const.c (fold_comparison): Likewise.
	* gimple-fold.c (fold_nonarray_ctor_reference): Likewise.
	* gimple-ssa-strength-reduction.c (restructure_reference): Likewise.
	* tree-dfa.c (get_ref_base_and_extent): Likewise.
	* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise.
	(stmt_kills_ref_p): Likewise.
	* tree-ssa-ccp.c (bit_value_binop_1): Likewise.
	* tree-ssa-math-opts.c (find_bswap_or_nop_load): Likewise.
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
	(ao_ref_init_from_vn_reference): Likewise.

gcc/cp/
	* init.c (build_new_1): Use shift operators instead of wi:: shifts.

From-SVN: r235720
 2016-05-02 09:39:38 +00:00
Michael Matz
fe37c7afd1 tree.h (TYPE_ALIGN, DECL_ALIGN): Return shifted amount. 
* tree.h (TYPE_ALIGN, DECL_ALIGN): Return shifted amount.
	(SET_TYPE_ALIGN, SET_DECL_ALIGN): New.
	* tree-core.h (tree_type_common.align): Use bit-field.
	(tree_type_common.spare): New.
	(tree_decl_common.off_align): Make smaller.
	(tree_decl_common.align): Use bit-field.

	* expr.c (expand_expr_addr_expr_1): Use SET_TYPE_ALIGN.
	* omp-low.c (install_var_field): Use SET_DECL_ALIGN.
	(scan_sharing_clauses): Ditto.
	(finish_taskreg_scan): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
	(omp_finish_file): Ditto.
	* stor-layout.c (do_type_align): Use SET_DECL_ALIGN.
	(layout_decl): Ditto.
	(relayout_decl): Ditto.
	(finalize_record_size): Use SET_TYPE_ALIGN.
	(finalize_type_size): Ditto.
	(finish_builtin_struct): Ditto.
	(layout_type): Ditto.
	(initialize_sizetypes): Ditto.
	* targhooks.c (std_gimplify_va_arg_expr): Use SET_TYPE_ALIGN.
	* tree-nested.c (insert_field_into_struct): Use SET_TYPE_ALIGN.
	(lookup_field_for_decl): Use SET_DECL_ALIGN.
	(get_chain_field): Ditto.
	(get_trampoline_type): Ditto.
	(get_nl_goto_field): Ditto.
	* tree-streamer-in.c (unpack_ts_decl_common_value_fields): Use
	SET_DECL_ALIGN.
	(unpack_ts_type_common_value_fields): Use SET_TYPE_ALIGN.
	* gimple-expr.c (copy_var_decl): Use SET_DECL_ALIGN.
	* tree.c (make_node_stat): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
	(build_qualified_type): Use SET_TYPE_ALIGN.
	(build_aligned_type, build_range_type_1): Ditto.
	(build_atomic_base): Ditto.
	(build_common_tree_nodes): Ditto.
	* cfgexpand.c (align_local_variable): Use SET_DECL_ALIGN.
	(expand_one_stack_var_at): Ditto.
	* coverage.c (build_var): Use SET_DECL_ALIGN.
	* except.c (init_eh): Ditto.
	* function.c (assign_parm_setup_block): Ditto.
	* symtab.c (increase_alignment_1): Ditto.
	* tree-ssa-ccp.c (fold_builtin_alloca_with_align): Ditto.
	* tree-vect-stmts.c (ensure_base_align): Ditto.
	* varasm.c (align_variable): Ditto.
	(assemble_variable): Ditto.
	(build_constant_desc): Ditto.
	(output_constant_def_contents): Ditto.

	* config/arm/arm.c (arm_relayout_function): Use SET_DECL_ALIGN.
	* config/avr/avr.c (avr_adjust_type_node): Use SET_TYPE_ALIGN.
	* config/mips/mips.c (mips_std_gimplify_va_arg_expr): Ditto.
	* config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Ditto.
	* config/spu/spu.c (spu_build_builtin_va_list): Use SET_DECL_ALIGN.

ada/
	* gcc-interface/decl.c (gnat_to_gnu_entity): Use SET_TYPE_ALIGN.
	(gnat_to_gnu_field): Ditto.
	(components_to_record): Ditto.
	(create_variant_part_from): Ditto.
	(copy_and_substitute_in_size): Ditto.
	(substitute_in_type): Ditto.
	* gcc-interface/utils.c (make_aligning_type): Use SET_TYPE_ALIGN.
	(make_packable_type): Ditto.
	(maybe_pad_type): Ditto.
	(finish_fat_pointer_type): Ditto.
	(finish_record_type): Ditto and use SET_DECL_ALIGN.
	(rest_of_record_type_compilation): Use SET_TYPE_ALIGN.
	(create_field_decl): Use SET_DECL_ALIGN.

c-family/
	* c-common.c (handle_aligned_attribute): Use SET_TYPE_ALIGN
	and SET_DECL_ALIGN.

c/
	* c-decl.c (merge_decls): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
	(grokdeclarator, parser_xref_tag, finish_enum): Use SET_TYPE_ALIGN.

cp/
	* class.c (build_vtable): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
	(layout_class_type): Ditto.
	(build_base_field): Use SET_DECL_ALIGN.
	(fixup_attribute_variants): Use SET_TYPE_ALIGN.
	* decl.c (duplicate_decls): Use SET_DECL_ALIGN.
	(record_unknown_type): Use SET_TYPE_ALIGN.
	(cxx_init_decl_processing): Ditto.
	(copy_type_enum): Ditto.
	(grokfndecl): Use SET_DECL_ALIGN.
	(copy_type_enum): Use SET_TYPE_ALIGN.
	* pt.c (instantiate_class_template_1): Use SET_TYPE_ALIGN.
	(tsubst): Ditto.
	* tree.c (cp_build_qualified_type_real): Use SET_TYPE_ALIGN.
	* lambda.c (maybe_add_lambda_conv_op): Use SET_DECL_ALIGN.
	* method.c (implicitly_declare_fn): Use SET_DECL_ALIGN.
	* rtti.c (emit_tinfo_decl): Ditto.

fortran/
	* trans-io.c (gfc_build_io_library_fndecls): Use SET_TYPE_ALIGN.
	* trans-common.c (build_common_decl): Use SET_DECL_ALIGN.
	* trans-types.c (gfc_add_field_to_struct): Use SET_DECL_ALIGN.

go/
	* go-gcc.cc (Gcc_backend::implicit_variable): Use SET_DECL_ALIGN.

java/
	* class.c (add_method_1): Use SET_DECL_ALIGN.
	(make_class_data): Ditto.
	(emit_register_classes_in_jcr_section): Ditto.
	* typeck.c (build_java_array_type): Ditto.

objc/
	* objc-act.c (objc_build_struct): Use SET_DECL_ALIGN.

libcc1/
	* plugin.cc (plugin_finish_record_or_union): Use SET_TYPE_ALIGN.

From-SVN: r235172
 2016-04-18 20:36:27 +00:00
Jason Merrill
9f285ccb77 Revert empty class parameter passing ABI changes. 
From-SVN: r234977
 2016-04-14 12:23:06 -04:00
Jason Merrill
2ee35bea2e Warn about empty parameter ABI with -Wabi=9. 
* call.c (empty_class_msg, mark_for_abi_warning)
	(warn_empty_class_abi): New.
	(build_call_a): Use them.
	* decl.c (store_parm_decls): Use mark_for_abi_warning.
	* error.c (pp_format_to_string): New.

From-SVN: r234960
 2016-04-13 16:11:29 -04:00
Jakub Jelinek
340fd4c9ce re PR middle-end/69909 (wrong code with -Os and vectors @ x86_64) 
PR middle-end/69909
	* expr.c (expand_expr_real_1) <normal_inner_ref>: Avoid
	set_mem_attributes if tem is SSA_NAME which got expanded
	as a MEM.

	* gcc.dg/torture/pr69909.c: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r233656
 2016-02-24 09:36:16 +01:00