The current frame code combines the separate concepts of a frame chain
(saving old FP,LR in a record and pointing new FP to it) and a frame
pointer used to access locals.  Add emit_frame_chain to the aarch64_frame
descriptor and use it in the prolog and epilog code.  For now just
initialize it as before, so generated code is identical.

Also correctly set EXIT_IGNORE_STACK.  The current AArch64 epilog code 
restores SP from FP if alloca is used.  If a frame pointer is used but
there is no alloca, SP must remain valid for the epilog to work correctly.

    gcc/
	* config/aarch64/aarch64.h (EXIT_IGNORE_STACK): Set if alloca is used.
	(aarch64_frame): Add emit_frame_chain boolean.
	* config/aarch64/aarch64.c (aarch64_frame_pointer_required)
	Move eh_return case to aarch64_layout_frame.
	(aarch64_layout_frame): Initialize emit_frame_chain.
	(aarch64_expand_prologue): Use emit_frame_chain.

From-SVN: r254114

* include/bits/stl_iterator.h (__iter_key_t)
(__iter_val_t, __iter_to_alloc_t): New.
* include/bits/stl_map.h: Add deduction guides.
* include/bits/stl_multimap.h: Likewise.
* include/bits/stl_multiset.h: Likewise.
* include/bits/stl_set.h: Likewise.
* include/bits/unordered_map.h: Likewise.
* include/bits/unordered_set.h: Likewise.
* include/debug/deque: Likewise.
* include/debug/forward_list: Likewise.
* include/debug/list: Likewise.
* include/debug/map.h: Likewise.
* include/debug/multimap.h: Likewise.
* include/debug/multiset.h: Likewise.
* include/debug/set.h: Likewise.
* include/debug/unordered_map: Likewise.
* include/debug/unordered_set: Likewise.
* include/debug/vector: Likewise.
* testsuite/23_containers/map/cons/deduction.cc: New.
* testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
* testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
* testsuite/23_containers/set/cons/deduction.cc: Likewise.
* testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
* testsuite/23_containers/unordered_multimap/cons/deduction.cc:
Likewise.
* testsuite/23_containers/unordered_multiset/cons/deduction.cc:
Likewise.
* testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.

From-SVN: r254113

This patch makes some changes to the frame layout in order to simplify
stack probing.  We want to use the save of LR as a probe in any non-leaf
function.  With shrinkwrapping we may only save LR before a call, so it
is useful to define a fixed location in the callee-saves. So force LR at
the bottom of the callee-saves even with -fomit-frame-pointer.

Also remove a rarely used frame layout that saves the callee-saves first
with -fomit-frame-pointer.  Doing so allows the store of LR to be used as
a valid stack probe in all frames.

    gcc/
	* config/aarch64/aarch64.c (aarch64_layout_frame):
        Ensure LR is always stored at the bottom of the callee-saves.
        Remove rarely used frame layout which saves callee-saves at top of
        frame, so the store of LR can be used as a valid probe in all cases.

From-SVN: r254112

In https://gcc.gnu.org/ml/gcc-patches/2017-06/msg01125.html Jiong
pointed out some addressing inefficiencies due to a recent change in
regcprop (https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00775.html).

This patch improves aarch64_legitimize_address_displacement to split
unaligned offsets of TImode and TFmode accesses.  The resulting code
is better and no longer relies on the original regcprop optimization.

For the test we now produce:

	add	x1, sp, 4
	stp	xzr, xzr, [x1, 24]

rather than:

        mov     x1, sp
        add     x1, x1, 28
        stp     xzr, xzr, [x1]

    gcc/
	* config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
	Improve unaligned TImode/TFmode base/offset split.

    testsuite/
	* gcc.target/aarch64/ldp_stp_unaligned_2.c: New file.

From-SVN: r254111

This patch uses df_read_modify_subreg_p to check whether writing
to a subreg would preserve some of the existing contents.

This has the effect of putting more emphasis on the
REGMODE_NATURAL_SIZE-based definition of whether something can be
partially modified, instead of using UNITS_PER_WORD unconditionally.
This becomes important for SVE, where UNITS_PER_WORD has no
significance for subregs of multi-register LD2/ST2, LD3/ST3 and
LD4/ST4 tuples.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* caller-save.c (mark_referenced_regs):  Use read_modify_subreg_p.
	* combine.c (find_single_use_1): Likewise.
	(expand_field_assignment): Likewise.
	(move_deaths): Likewise.
	* lra-constraints.c (simplify_operand_subreg): Likewise.
	(curr_insn_transform): Likewise.
	* lra.c (collect_non_operand_hard_regs): Likewise.
	(add_regs_to_insn_regno_info): Likewise.
	* rtlanal.c (reg_referenced_p): Likewise.
	(covers_regno_no_parallel_p): Likewise.

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

From-SVN: r254110

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* wide-int-print.cc (print_hex): Loop based on extract_uhwi.
	Don't print any bits outside the precision of the value.
	* wide-int.cc (test_printing): Add some new tests.

From-SVN: r254109

After r254010 we now add -gcolumn-info by default, that means the tests
in gcc.target/arm/require-pic-register-loc.c need adjusting to not expect
to see column zero.

gcc/testsuite/

	* gcc.target/arm/require-pic-register-loc.c: Use wider regex for
	column information.

From-SVN: r254106

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg01935.html
	* decl.c (sort_labels): Restore function.
	(pop_labels): Sort labels
	(identify_goto): Add translation markup.

From-SVN: r254104

	* configure.ac (gcc_cv_as_ix86_xbrace_comment): Check if assembler
	supports -xbrace_comment option.
	* configure: Regenerate.
	* config.in: Regenerate.
	* config/i386/sol2.h (ASM_XBRACE_COMMENT_SPEC): Define.
	(ASM_CPU_SPEC): Use it.

From-SVN: r254103

TARGET_STATIC_RTX_ALIGNMENT

This patch adds a new hook that gives the preferred alignment for
a static rtx, so that we don't need to query the front end in
force_const_mem.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* target.def (static_rtx_alignment): New hook.
	* targhooks.h (default_static_rtx_alignment): Declare.
	* targhooks.c (default_static_rtx_alignment): New function.
	* doc/tm.texi.in (TARGET_STATIC_RTX_ALIGNMENT): New hook.
	* doc/tm.texi: Regenerate.
	* varasm.c (force_const_mem): Use targetm.static_rtx_alignment
	instead of targetm.constant_alignment.  Remove call to
	set_mem_attributes.
	* config/cris/cris.c (TARGET_STATIC_RTX_ALIGNMENT): Redefine.
	(cris_preferred_mininum_alignment): New function, split out from...
	(cris_constant_alignment): ...here.
	(cris_static_rtx_alignment): New function.
	* config/i386/i386.c (ix86_static_rtx_alignment): New function,
	split out from...
	(ix86_constant_alignment): ...here.
	(TARGET_STATIC_RTX_ALIGNMENT): Redefine.
	* config/mmix/mmix.c (TARGET_STATIC_RTX_ALIGNMENT): Redefine.
	(mmix_static_rtx_alignment): New function.
	* config/spu/spu.c (spu_static_rtx_alignment): New function.
	(TARGET_STATIC_RTX_ALIGNMENT): Redefine.

From-SVN: r254102

	* gcc.dg/vect/vect-reduc-dot-s8a.c
	(dg-additional-options, dg-require-effective-target): Add +dotprod.
	* gcc.dg/vect/vect-reduc-dot-u8a.c
	(dg-additional-options, dg-require-effective-target): Add +dotprod.

From-SVN: r254101

	* lib/target-supports.exp
	(check_effective_target_arm_v8_2a_dotprod_neon_ok_nocache): New.
	(check_effective_target_arm_v8_2a_dotprod_neon_ok): New.
	(add_options_for_arm_v8_2a_dotprod_neon): New.
	(check_effective_target_arm_v8_2a_dotprod_neon_hw): New.
	(check_effective_target_vect_sdot_qi): Add ARM && AArch64.
	(check_effective_target_vect_udot_qi): Likewise.
	* gcc.target/arm/simd/vdot-exec.c: New.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-exec.c: New.
	* gcc/doc/sourcebuild.texi: Document arm_v8_2a_dotprod_neon.

From-SVN: r254100

2017-10-26  Tamar Christina  <tamar.christina@arm.com>

	* gcc.dg/vect/vect-multitypes-1.c: Correct target selector.

From-SVN: r254099

2017-10-26  Tamar Christina  <tamar.christina@arm.com>

	PR target/81800
	* config/aarch64/aarch64.md (lrint<GPF:mode><GPI:mode>2): Add flag_trapping_math
	and flag_fp_int_builtin_inexact.

gcc/testsuite/
2017-10-26  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/aarch64/inline-lrint_2.c (dg-options): Add -fno-trapping-math.

From-SVN: r254098

2017-10-26  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/aarch64/advsimd-intrinsics/vect-dot-qi.h: New.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile.c: New.
	* gcc.target/aarch64/advsimd-intrinsics/vect-dot-s8.c: New.
	* gcc.target/aarch64/advsimd-intrinsics/vect-dot-u8.c: New.

From-SVN: r254097

From-SVN: r254096

c_parser_declaration_or_fndef has logic for parsing what might be
either a declaration or a function definition.

This patch adds a test to detect cases where a semicolon would have
terminated the decls as a declaration, where the token that follows
would start a new declaration specifier, and updates the error message
accordingly, with a fix-it hint.

This addresses PR c/7356, fixing the case of a stray token before a
#include that previously gave inscrutable output, and improving e.g.:

  int i
  int j;

from:

  t.c:2:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
   int j;
   ^~~

to:

  t.c:1:6: error: expected ';' before 'int'
   int i
        ^
        ;
   int j;
   ~~~

gcc.dg/noncompile/920923-1.c needs a slight update, as the output for
the first line changes from:

  920923-1.c:2:14: error: expected '=', ',', ';', 'asm' or
  '__attribute__' before 'unsigned'
   typedef BYTE unsigned char; /* { dg-error "expected" } */
                ^~~~~~~~

to:
  920923-1.c:2:13: error: expected ';' before 'unsigned'
   typedef BYTE unsigned char; /* { dg-error "expected" } */
               ^~~~~~~~~
               ;
  920923-1.c:2:1: warning: useless type name in empty declaration
   typedef BYTE unsigned char; /* { dg-error "expected" } */
   ^~~~~~~

The patch also adds a test for PR c/44515 as a baseline.

gcc/c/ChangeLog:
	PR c/7356
	* c-parser.c (c_parser_declaration_or_fndef): Detect missing
	semicolons.

gcc/testsuite/ChangeLog:
	PR c/7356
	PR c/44515
	* c-c++-common/pr44515.c: New test case.
	* gcc.dg/pr7356-2.c: New test case.
	* gcc.dg/pr7356.c: New test case.
	* gcc.dg/spellcheck-typenames.c: Update the "singed" char "TODO"
	case to reflect changes to output.
	* gcc.dg/noncompile/920923-1.c: Add dg-warning to reflect changes
	to output.

From-SVN: r254093

Loads on RISC-V are sign-extending by default, but we weren't telling
GCC this in our PIC load patterns.  This corrects the problem, and adds
a zero-extending pattern as well.

gcc/ChangeLog

2017-10-25  Palmer Dabbelt  <palmer@dabbelt.com>

       * config/riscv/riscv.md (ZERO_EXTEND_LOAD): Define.
       * config/riscv/pic.md (local_pic_load): Rename to local_pic_load_s,
       mark as a sign-extending load.
       (local_pic_load_u): Define.

From-SVN: r254092

	* Makefile.am (check-go-tool): Output colon after ${fl}.
	(check-runtime, check-cgo-test, check-carchive-test): Likewise.
	* Makefile.in: Rebuild.

From-SVN: r254090

	PR middle-end/82062
	* fold-const.c (operand_equal_for_comparison_p): Also return true
	if ARG0 is a simple variant of ARG1 with narrower precision.
	(fold_ternary_loc): Always pass unstripped operands to the predicate.

From-SVN: r254089

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg01854.html
	Kill IDENTIFIER_LABEL_VALUE.
	* cp-tree.h (lang_identifier): Delete label_value slot.
	(IDENTIFIER_LABEL_VALUE, SET_IDENTIFIER_LABEL_VALUE): Delete.
	(struct named_label_hasher): Rename to ...
	(struct named_label_hash): ... here.  Reimplement.
	(struct language_function): Adjust x_named_labels.
	* name-lookup.h (struct cp_label_binding): Delete.
	(struct cp_binding_level): Delete shadowed_labels slot.
	* decl.c (struct named_label_entry): Add name and outer slots.
	(pop_label): Rename to ...
	(check_label_used): ... here.  Don't pop.
	(note_label, sort_labels): Delete.
	(pop_labels, pop_local_label): Reimplement.
	(poplevel): Pop local labels as any other decl. Remove
	shadowed_labels handling.
	(named_label_hash::hash, named_label_hash::equal): New.
	(make_label_decl): Absorb into ...
	(lookup_label_1): ... here.  Add making_local_p arg, reimplement.
	(lookup_label, declare_local_label): Adjust.
	(check_goto, define_label): Adjust.
	* lex.c (make_conv_op_name): Don't clear IDENTIFIER_LABEL_VALUE.
	* ptree.c (cxx_print_identifier): Don't print identifier binding.

From-SVN: r254087

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg01847.html
	* decl.c (identifier_goto): Reduce duplication.
	(check_previous_goto_1): Likewise.
	(check_goto): Move var decls to initialization.
	(check_omp_return, define_label_1, define_label): Likewise.

From-SVN: r254086

	* i386.c (ix86_builtin_vectorization_cost): Compute scatter/gather
	cost correctly.
	* i386.h (processor_costs): Add gather_static, gather_per_elt,
	scatter_static, scatter_per_elt.
	* x86-tune-costs.h: Add new cost entries.

From-SVN: r254083

2017-10-25  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* match.c (gfc_match_type_is): Fix typo in error message.

From-SVN: r254082

	* doc/xml/manual/status_cxx2017.xml: Update C++17 status, and
	information on feature-test macros.
	* doc/html/*: Regenerate.

From-SVN: r254078

	PR libstdc++/82716
	* include/std/array (tuple_size, tuple_element): Change class-key
	from class to struct, to avoid annoying Clang warnings.

From-SVN: r254077

	PR libstdc++/79283
	* src/filesystem/ops.cc (read_symlink): Handle st_size being zero.
	* src/filesystem/std-ops.cc (read_symlink): Likewise.
	(do_copy_file) [!NEED_DO_COPY_FILE]: Avoid multiple definitions.

From-SVN: r254076

	* src/filesystem/std-path.cc (path::lexically_normal): Add missing
	step to algorithm, for removing dot-dot elements after root-directory.
	* testsuite/27_io/filesystem/operations/canonical.cc: Use
	compare_paths for more exhaustive checks.
	* testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
	* testsuite/27_io/filesystem/path/append/path.cc: Likewise.
	* testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
	* testsuite/27_io/filesystem/path/concat/strings.cc: Fix comment.
	* testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/root_directory.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/generation/normal.cc: Use
	compare_paths for more exhaustive checks. Add extra testcases.
	* testsuite/27_io/filesystem/path/generation/proximate.cc: Use
	compare_paths for more exhaustive checks.
	* testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
	* testsuite/27_io/filesystem/path/generic/generic_string.cc: Remove
	unused header.
	* testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: Fix
	comment.
	* testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: Use
	compare_paths for more exhaustive checks.
	* testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
	Likewise.
	* testsuite/util/testsuite_fs.h (compare_paths): Also compare native
	strings.

From-SVN: r254075

2017-10-25  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.h (vn_eliminate): Declare.
	* tree-ssa-pre.c (class eliminate_dom_walker, eliminate,
	class pass_fre): Move to ...
	* tree-ssa-sccvn.c (class eliminate_dom_walker, vn_eliminate,
	class pass_fre): ... here and adjust for statistics.

From-SVN: r254074

2017-10-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82436
	* gcc.dg/torture/pr82436-2.c: New testcase.

From-SVN: r254073

2017-10-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71820
	* g++.dg/ext/typeof12.C: New.

From-SVN: r254072

2017-10-25  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/tree-ssa/loop-1.c: Add xfail for nvptx in scan-assembler-times
	line, and add nvptx-specific version.

From-SVN: r254071

	* gcc.target/i386/cet-sjlj-5.c: Allow for emtpy user label prefix
	in setjmp call.

From-SVN: r254070

	PR libstdc++/81706
	* attribs.c (attribute_value_equal): Use omp_declare_simd_clauses_equal
	for comparison of OMP_CLAUSEs regardless of flag_openmp{,_simd}.
	(duplicate_one_attribute, copy_attributes_to_builtin): New functions.
	* attribs.h (duplicate_one_attribute, copy_attributes_to_builtin): New
	declarations.

	* c-decl.c (merge_decls): Copy "omp declare simd" attributes from
	newdecl to corresponding __builtin_ if any.

	* decl.c (duplicate_decls): Copy "omp declare simd" attributes from
	newdecl to corresponding __builtin_ if any.

	* gcc.target/i386/pr81706.c: New test.
	* g++.dg/ext/pr81706.C: New test.

From-SVN: r254069

2017-10-25  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (need_eh_cleanup, need_ab_cleanup, el_to_remove,
	el_to_fixup, el_todo, el_avail, el_avail_stack, eliminate_avail,
	eliminate_push_avail, eliminate_insert): Move inside...
	(class eliminate_dom_walker): ... this class in preparation
	of move.
	(fini_eliminate): Remove by merging with ...
	(eliminate): ... this function.  Adjust for class changes.
	(pass_pre::execute): Remove fini_eliminate call.
	(pass_fre::execute): Likewise.

From-SVN: r254068

	PR libstdc++/82706
	* testsuite/27_io/filesystem/operations/permissions.cc: Fix test.

From-SVN: r254067

From-SVN: r254066

2017-10-24  François Dumont  <fdumont@gcc.gnu.org>

	* testsuite/lib/libstdc++.exp (check_v3_target_normal_mode): Add
	c++config.h include.
	(check_v3_target_normal_namespace): New.
	* testsuite/lib/dg-options.exp (dg-require-normal-namespace): New.
	* testsuite/18_support/headers/limits/synopsis.cc: Add latter.
	* testsuite/20_util/from_chars/requirements.cc: Likewise.
	* testsuite/20_util/headers/functional/synopsis.cc: Likewise.
	* testsuite/20_util/headers/memory/synopsis.cc: Likewise.
	* testsuite/20_util/headers/utility/synopsis.cc: Likewise.
	* testsuite/20_util/to_chars/requirements.cc: Likewise.
	* testsuite/21_strings/headers/string/synopsis.cc: Likewise.
	* testsuite/22_locale/headers/locale/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/bitset/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/deque/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/forward_list/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/list/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/map/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/queue/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/set/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/stack/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/vector/synopsis.cc: Likewise.
	* testsuite/23_containers/map/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/multimap/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/multiset/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/set/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++11.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++14.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Likewise.
	* testsuite/26_numerics/complex/abi_tag.cc: Likewise.
	* testsuite/26_numerics/headers/complex/synopsis.cc: Likewise.
	* testsuite/26_numerics/headers/valarray/synopsis.cc: Likewise.
	* testsuite/27_io/headers/fstream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/ios/synopsis.cc: Likewise.
	* testsuite/27_io/headers/istream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/ostream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/sstream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/streambuf/synopsis.cc: Likewise.

From-SVN: r254060

re PR target/82460 (AVX512: choose between vpermi2d and vpermt2d to save mov instructions.  Also, fails to optimize away shifts before shuffle)

	PR target/82460
	* config/i386/sse.md (UNSPEC_VPERMI2, UNSPEC_VPERMI2_MASK): Remove.
	(VPERMI2, VPERMI2I): New mode iterators.
	(<avx512>_vpermi2var<mode>3_maskz): Remove 3 define_expand patterns.
	(<avx512>_vpermi2var<mode>3<sd_maskz_name>): Remove 3 define_insn
	patterns.
	(<avx512>_vpermi2var<mode>3_mask): New define_expand using VPERMI2
	mode iterator.  Remove 3 old define_insn patterns.
	(*<avx512>_vpermi2var<mode>3_mask): 2 new define_insn patterns.
	(<avx512>_vpermt2var<mode>3_maskz): Adjust 1 define_expand to use
	VPERMI2 mode iterator, remove the other two expanders.
	(<avx512>_vpermt2var<mode>3<sd_maskz_name>): Adjust 1 define_insn
	to use VPERMI2 mode iterator, add another alternative for vpermi2*
	instructions, remove the other two patterns.
	(<avx512>_vpermt2var<mode>3_mask): Adjust 1 define_insn to use VPERMI2
	mode iterator, remove the other two patterns.
	* config/i386/i386.c (ix86_expand_vec_perm_vpermi2): Renamed to ...
	(ix86_expand_vec_perm_vpermt2): ... this.  Swap mask and op0
	arguments, use gen_*vpermt2* expanders instead of gen_*vpermi2*
	and adjust argument order accordingly.
	(ix86_expand_vec_perm): Adjust caller.
	(expand_vec_perm_1): Likewise.
	(expand_vec_perm_vpermi2_vpshub2): Rename to ...
	(expand_vec_perm_vpermt2_vpshub2): ... this.
	(ix86_expand_vec_perm_const_1): Adjust caller.
	(ix86_vectorize_vec_perm_const_ok): Adjust comments.

	* gcc.target/i386/pr82460-1.c: New test.
	* gcc.target/i386/pr82460-2.c: New test.
	* gcc.target/i386/avx512f-vpermt2pd-1.c: Adjust scan-assembler*
	regexps to allow vpermt2* to vpermi2* replacement or vice versa
	where possible.
	* gcc.target/i386/avx512vl-vpermt2pd-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2d-1.c: Likewise.
	* gcc.target/i386/vect-pack-trunc-2.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2ps-1.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2q-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2ps-1.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2d-1.c: Likewise.
	* gcc.target/i386/avx512bw-vpermt2w-1.c: Likewise.
	* gcc.target/i386/avx512vbmi-vpermt2b-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2q-1.c: Likewise.

From-SVN: r254059

	PR target/82370
	* config/i386/sse.md (VIMAX_AVX2): Remove V4TImode.
	(VIMAX_AVX2_AVX512BW, VIMAX_AVX512VL): New mode iterators.
	(vec_shl_<mode>): Remove unused expander.
	(avx512bw_<shift_insn><mode>3): New define_insn.
	(<sse2_avx2>_ashl<mode>3, <sse2_avx2>_lshr<mode>3): Replaced by ...
	(<sse2_avx2>_<shift_insn><mode>3): ... this.  New define_insn.

	* gcc.target/i386/pr82370.c: New test.

From-SVN: r254058