2017-08-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81633
	Revert
	2015-08-17  Alan Hayward  <alan.hayward@arm.com>

	PR tree-optimization/71752
	* tree-vect-slp.c (vect_get_slp_defs): Handle null operands.

	* gcc.dg/vect/pr81633.c: New testcase.

From-SVN: r250811

From-SVN: r250810

From-SVN: r250805

ix86_frame::outlined_save_offset isn't used and
machine_function::call_ms2sysv_pad_out is an ineffective strategy.

2017-08-01  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.h (ix86_frame::outlined_save_offset): Remove field.
        (machine_function::call_ms2sysv_pad_out): Remove field.
        * config/i386/i386.c (xlogue_layout::get_stack_space_used): Modify.
        (ix86_compute_frame_layout): Likewise.

From-SVN: r250803

	* c-ada-spec.c (has_static_fields): Look only into fields.
	(dump_generic_ada_node): Small tweak.
	(dump_nested_types): Look only into fields.
	(print_ada_declaration): Look only into methods.  Small tweak.
	(print_ada_struct_decl): Look only into fields.  Use DECL_VIRTUAL_P.

From-SVN: r250802

Add some tests for implementing interrupt handlers with naked attribute
and without asm statements.

	* gcc.dg/guality/pr25967-3.c: New test.
	* gcc.dg/guality/pr25967-4.c: Likewise.
	* gcc.dg/torture/pr25967-3.c: Likewise.
	* gcc.dg/torture/pr25967-4.c: Likewise.

From-SVN: r250800

Add some tests for implementing interrupt handlers with naked attribute.

	* gcc.dg/guality/pr25967-1.c: New test.
	* gcc.dg/guality/pr25967-2.c: Likewise.
	* gcc.dg/torture/pr25967-1.c: Likewise.
	* gcc.dg/torture/pr25967-2.c: Likewise.

From-SVN: r250799

	* c-ada-spec.c (print_generic_ada_decl): Pass correctly-typed constant.
	(dump_ada_function_declaration): Likewise.
	(dump_generic_ada_node): Likewise.
	(print_ada_declaration): Add support for const-qualified variables.

From-SVN: r250797

gcc/

	PR target/81654
	* config/i386/i386.c (ix86_set_func_type): Disallow naked
	attribute with interrupt attribute.

gcc/testsuite/

	PR target/81654
	* gcc.target/i386/pr81654.c: New test.

From-SVN: r250793

2017-08-01  Thomas König  <tkoenig@gcc.gnu.org>

	PR fortran/79312
	* intrisic.c (gfc_convert_type_warn):  Only set typespec for
	empty array constructors which don't have it already.

2017-08-01  Thomas König  <tkoenig@gcc.gnu.org>

	PR fortran/79312
	* gfortran.dg/logical_assignment_1.f90:  New test.

From-SVN: r250792

2017-08-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45435
	* lang.opt (fc-prototypes): Add option.
	* gfortran.h (gfc_typespec): Add interop_kind to struct.
	(gfc_dump_c_prototypes): Add prototype.
	* decl.c (gfc_match_kind_spec): Copy symbol used for kind to typespec.
	* parse.c (gfc_parse_file): Call gfc_dump_prototypes.
	* dump-parse-tree.c (gfc_dump_c_prototypes): New function.
	(type_return): New enum.
	(get_c_type_name): New function.
	(write_decl): New function.
	(write_type): New function.
	(write_variable): New function.
	(write_proc): New function.
	(write_interop_decl): New function.
	* invoke.texi: Document -fc-prototypes.

From-SVN: r250791

tree-ssa-scopedtables.c (hashable_expr_equal_p): Check BIT_INSERT_EXPR's operand 1 to see if the types precision matches.

2017-08-01  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-scopedtables.c (hashable_expr_equal_p): Check
        BIT_INSERT_EXPR's operand 1
        to see if the types precision matches.

From-SVN: r250790

2017-08-01  Martin Liska  <mliska@suse.cz>

	PR middle-end/70140
	* gcc.dg/string-opt-1.c: Adjust test-case to scan for memcpy.
2017-08-01  Martin Liska  <mliska@suse.cz>

	PR middle-end/70140
	* builtins.c (expand_builtin_memcpy_args): Remove.
	(expand_builtin_memcpy): Call newly added function
	expand_builtin_memory_copy_args.
	(expand_builtin_memcpy_with_bounds): Likewise.
	(expand_builtin_mempcpy): Remove last argument.
	(expand_builtin_mempcpy_with_bounds): Likewise.
	(expand_builtin_memory_copy_args): New function created from
	expand_builtin_mempcpy_args with small modifications.
	(expand_builtin_mempcpy_args): Remove.
	(expand_builtin_stpcpy): Remove unused argument.
	(expand_builtin): Likewise.
	(expand_builtin_with_bounds): Likewise.

From-SVN: r250789

2017-08-01  Martin Liska  <mliska@suse.cz>

	Revert r250771
	Make mempcpy more optimal (PR middle-end/70140).
2017-08-01  Martin Liska  <mliska@suse.cz>

	Revert r250771
	Make mempcpy more optimal (PR middle-end/70140).

From-SVN: r250788

From-SVN: r250786

	PR target/81622
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): For
	__builtin_vec_cmpne verify both arguments are compatible vectors
	before looking at TYPE_MODE on the element type.  For __builtin_vec_ld
	verify arg1_type is a pointer or array type.  For __builtin_vec_st,
	move computation of aligned to after checking the argument types.
	Formatting fixes.

	* gcc.target/powerpc/pr81622.c: New test.

From-SVN: r250785

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
	* config/rs6000/vsx.md (vextract_fp_from_shorth,
	vextract_fp_from_shortl): Add element mode after mode in gen_vec_init*
	calls.

From-SVN: r250784

2017-08-01  Steve Ellcey  <sellcey@cavium.com>

	PR tree-optimization/80925
	* gcc.dg/vect/vect-28.c: Add
	--param vect-max-peeling-for-alignment=0 option.
	Remove unaligned access and peeling checks.
	* gcc.dg/vect/vect-33-big-array.c: Ditto.
	* gcc.dg/vect/vect-70.c: Ditto.
	* gcc.dg/vect/vect-87.c: Ditto.
	* gcc.dg/vect/vect-88.c: Ditto.
	* gcc.dg/vect/vect-91.c: Ditto.
	* gcc.dg/vect/vect-93.c: Ditto.

From-SVN: r250783

2017-08-01  Jerome Lambourg  <lambourg@adacore.com>
           Doug Rupp  <rupp@adacore.com>
           Olivier Hainque  <hainque@adacore.com>

  	gcc/
   	* config.gcc (arm-wrs-vxworks*): Rework to handle arm-wrs-vxworks7 as
   	well as arm-wrs-vxworks. Update target_cpu_name from arm6 (arch v3) to
   	arm8 (arch v4).
   	* config/arm/vxworks.h (MAYBE_TARGET_BPABI_CPP_BUILTINS): New, helper
   	for TARGET_OS_CPP_BUILTIN.
   	(TARGET_OS_CPP_BUILTIN): Invoke MAYBE_TARGET_BPABI_CPP_BUILTINS(),
   	refine CPU definitions for arm_arch5 and add those for arm_arch6 and
   	arm_arch7.
    	(MAYBE_ASM_ABI_SPEC): New, helper for SUBTARGET_EXTRA_ASM_SPEC,
   	passing required abi options to the assembler for EABI configurations.
   	(EXTRA_CC1_SPEC): New macro, to help prevent the implicit production
   	of .text.hot and .text.unlikely sections for kernel modules when
   	using ARM style exceptions.
   	(CC1_SPEC): Remove obsolete attempt at mimicking Diab toolchain
   	options. Add EXTRA_CC1_SPEC.
   	(VXWORKS_ENDIAN_SPEC): Adjust comment and remove handling of Diab
   	toolchain options.
   	(DWARF2_UNWIND_INFO): Redefine to handle the pre/post VxWorks 7
   	transition.
   	(ARM_TARGET2_DWARF_FORMAT): Define.
   	* config/arm/t-vxworks: Adjust multilib control to removal of the
   	Diab command line options.

   	libgcc/
   	* config.host (arm-wrs-vxworks*): Rework to handle arm-wrs-vxworks7
   	as well as arm-wrs-vxworks.
   	* config/arm/t-vxworks7: New file.  Add unwind-arm-vxworks.c to
   	LIB2ADDEH.
   	* config/arm/unwind-arm-vxworks.c: New file. Provide dummy
   	__exidx_start and __exidx_end for downloadable modules.


Co-Authored-By: Doug Rupp <rupp@adacore.com>
Co-Authored-By: Olivier Hainque <hainque@adacore.com>

From-SVN: r250781

2017-08-01  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/81561
	* gcov.c (unblock): Make unblocking safe as we need to preserve
	index correspondence of blocks and block_lists.

From-SVN: r250780

Use signed loop iteration variable in nvtpx/slp* test-cases to work around
PR tree-optimizaion/81635.

2017-08-01  Tom de Vries  <tom@codesourcery.com>

	* gcc.target/nvptx/slp-2.c (foo): Use signed loop iteration variable.
	* gcc.target/nvptx/slp.c (foo): Same.

From-SVN: r250778

2017-08-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81181
	* tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
	(compute_antic): ... end of iteration here.

	* gcc.dg/torture/pr81181.c: New testcase.

From-SVN: r250777

2017-08-01  Olivier Hainque  <hainque@adacore.com>

	* config/t-vxworks (LIBGCC2_INCLUDES): Start with -I. after -nostdinc.
	* config/t-vxworks7: Likewise.

From-SVN: r250776

2017-08-01  Olivier Hainque  <hainque@adacore.com>

	* config/t-vxworks: Instead of redefining LIB2ADD,
	augment LIB2ADDEH with vxlib.c and vxlib-tls.c.

From-SVN: r250775

gcc/

	* common.opt (ftree-vectorize): No longer set flag_tree_vectorize.
	(ftree-loop-vectorize): Set as EnabledBy ftree-vectorize.
	(ftree-slp-vectorize): Likewise.
	* omp-expand (expand_omp_simd): Remove flag_tree_vectorize, as it
	can no longer be set independent of flag_tree_loop_vectorize.
	* omp-general.c (emp_max_vf): Likewise.
	* opts.c (enable_fdo_optimizations): Remove references to
	flag_tree_vectorize, these are now implicit.
	(common_handle_option): Remove handling for OPT_ftree_vectorize,
	and leave it for the options machinery.

From-SVN: r250774

From-SVN: r250773

2017-08-01  Martin Liska  <mliska@suse.cz>

	PR middle-end/70140
	* gcc.dg/string-opt-1.c: Adjust test-case to scan for memcpy.
2017-08-01  Martin Liska  <mliska@suse.cz>

	PR middle-end/70140
	* builtins.c (expand_builtin_memcpy_args): Remove.
	(expand_builtin_memcpy): Call newly added function
	expand_builtin_memory_copy_args.
	(expand_builtin_memcpy_with_bounds): Likewise.
	(expand_builtin_mempcpy): Remove last argument.
	(expand_builtin_mempcpy_with_bounds): Likewise.
	(expand_builtin_memory_copy_args): New function created from
	expand_builtin_mempcpy_args with small modifications.
	(expand_builtin_mempcpy_args): Remove.
	(expand_builtin_stpcpy): Remove unused argument.
	(expand_builtin): Likewise.
	(expand_builtin_with_bounds): Likewise.

From-SVN: r250771

2017-08-01  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/aarch64/dbl_mov_immediate_1.c:
	Use conditional assembler scans.

From-SVN: r250770

	PR target/81641
	* config/i386/i386.c (ix86_print_operand_address_as): For -masm=intel
	print "ds:" only for immediates in generic address space.

testsuite/ChangeLog:

	PR target/81641
	* gcc.target/i386/pr81641.c: New test.

From-SVN: r250769

	PR target/81639
	* config/i386/i386.c (ix86_funciton_naked): New prototype.
	(ix86_function_ok_for_sibcall): Return false for naked functions.

testsuite/ChangeLog:

	PR target/81639
	* gcc.target/i386/pr81639.c: New test.

From-SVN: r250768

2017-08-01  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (print_pre_expr): Handle NULL expr.
	(compute_antic): Seed worklist with exit block predecessors.
	* cfganal.c (dfs_find_deadend): For a cycle return the source
	of the edge closing it.

	* gcc.dg/tree-ssa/ssa-dce-3.c: Adjust.
	* gcc.dg/tree-ssa/split-path-5.c: Remove case with just dead
	endless loop.
	* gcc.dg/uninit-23.c: Adjust.

From-SVN: r250767

	* config/aarch64/aarch64.c
	(aarch64_can_const_movi_rtx_p): Move 0 check.

From-SVN: r250766

	* tree.h (POINTER_TYPE_OVERFLOW_UNDEFINED): Delete.
	* fold-const.c (fold_comparison, fold_binary_loc): Delete use of
	above macro.
	* match.pd: Ditto in address comparison pattern.

	gcc/testsuite
	* gcc.dg/no-strict-overflow-7.c: Revise comment and test string.
	* gcc.dg/tree-ssa/pr81388-1.c: Ditto.

From-SVN: r250765

re PR tree-optimization/81627 (ICE on valid code at -O3: in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:707)

	PR tree-optimization/81627
	* tree-predcom.c (prepare_finalizers): Always rewrite into loop
	closed ssa form for store-store chain.

	gcc/testsuite
	* gcc.dg/tree-ssa/pr81627.c: New.

From-SVN: r250764

re PR tree-optimization/81620 (ICE in is_inv_store_elimination_chain, at tree-predcom.c:1651 with -O3)

	PR tree-optimization/81620
	* tree-predcom.c (add_ref_to_chain): Don't set has_max_use_after
	for store-store chain.

	gcc/testsuite
	* gcc.dg/tree-ssa/pr81620-1.c: New.
	* gcc.dg/tree-ssa/pr81620-2.c: New.

From-SVN: r250763

re PR fortran/53542 (Diagnostic of USE-associated variables shows original instead of renamed symbol name)

2017-08-01  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/53542
	* expr.c (gfc_check_init_expr): Use the renamed name.

	PR testsuite/53542
	* gfortran.dg/use_30.f90: New test.

From-SVN: r250762

	PR tree-optimization/81588
	* tree-ssa-reassoc.c (optimize_range_tests_var_bound): If
	ranges[i].in_p, invert comparison code ccode.  For >/>=,
	swap rhs1 and rhs2 and comparison code unconditionally,
	for </<= don't do that.  Don't swap rhs1/rhs2 again if
	ranges[i].in_p, instead invert comparison code ccode if
	opcode or oe->rank is BIT_IOR_EXPR.

	* gcc.dg/tree-ssa/pr81588.c: New test.
	* gcc.dg/pr81588.c: New test.
	* gcc.c-torture/execute/pr81588.c: New test.

From-SVN: r250760

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  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81297
	* tree-vrp.c (get_single_symbol): Remove assert, instead drop
	TREE_OVERFLOW from INTEGER_CSTs.

	* gcc.dg/torture/pr81297.c: New testcase.

From-SVN: r250758

	* gcc.target/i386/naked-1.c (dg-options): Add -fno-pic.

From-SVN: r250757