[llvm] r308672 - [X86] Adding ISel tests for strided-shuffles with non-zero offset. NFC.

Zvi Rackover via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 20 14:03:37 PDT 2017


Author: zvi
Date: Thu Jul 20 14:03:36 2017
New Revision: 308672

URL: http://llvm.org/viewvc/llvm-project?rev=308672&view=rev
Log:
[X86] Adding ISel tests for strided-shuffles with non-zero offset. NFC.

Added:
    llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll   (with props)
    llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll   (with props)
    llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll   (with props)

Added: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll?rev=308672&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll (added)
+++ llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll Thu Jul 20 14:03:36 2017
@@ -0,0 +1,907 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=SSE --check-prefix=SSE2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=SSE --check-prefix=SSE42
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX --check-prefix=AVX2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512F
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512VL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BW
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw,+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BWVL
+
+define void @shuffle_v16i8_to_v8i8_1(<16 x i8>* %L, <8 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v8i8_1:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm2 = xmm2[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm2 = xmm2[0,1,2,3,7,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm2 = xmm2[1,0,3,2,4,5,6,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,0,3,2,4,5,6,7]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movq %xmm0, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v8i8_1:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    movq %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v8i8_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vmovq %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v8i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v8i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512VL-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v8i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v8i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlw $8, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v8i16_to_v4i16_1(<8 x i16>* %L, <4 x i16>* %S) nounwind {
+; SSE2-LABEL: shuffle_v8i16_to_v4i16_1:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = mem[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,0,3,2,4,5,6,7]
+; SSE2-NEXT:    movq %xmm0, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v8i16_to_v4i16_1:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; SSE42-NEXT:    movq %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_to_v4i16_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX-NEXT:    vmovq %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v8i16_to_v4i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v8i16_to_v4i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v8i16_to_v4i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v8i16_to_v4i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <8 x i16>, <8 x i16>* %L
+  %strided.vec = shufflevector <8 x i16> %vec, <8 x i16> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
+  store <4 x i16> %strided.vec, <4 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v4i32_to_v2i32_1(<4 x i32>* %L, <2 x i32>* %S) nounwind {
+; SSE-LABEL: shuffle_v4i32_to_v2i32_1:
+; SSE:       # BB#0:
+; SSE-NEXT:    pshufd {{.*#+}} xmm0 = mem[1,3,2,3]
+; SSE-NEXT:    movq %xmm0, (%rsi)
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v4i32_to_v2i32_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,3,2,3]
+; AVX-NEXT:    vmovq %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v4i32_to_v2i32_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,3,2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v4i32_to_v2i32_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512VL-NEXT:    vpmovqd %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v4i32_to_v2i32_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,3,2,3]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v4i32_to_v2i32_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512BWVL-NEXT:    vpmovqd %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <4 x i32>, <4 x i32>* %L
+  %strided.vec = shufflevector <4 x i32> %vec, <4 x i32> undef, <2 x i32> <i32 1, i32 3>
+  store <2 x i32> %strided.vec, <2 x i32>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v4i8_1(<16 x i8>* %L, <4 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v4i8_1:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm2 = xmm2[1,3,2,3,4,5,6,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v4i8_1:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    movd %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v4i8_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v4i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v4i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512VL-NEXT:    vpsrlw $8, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v4i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v4i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlw $8, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <4 x i32> <i32 1, i32 5, i32 9, i32 13>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v4i8_2(<16 x i8>* %L, <4 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v4i8_2:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,0,3,2,4,5,6,7]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v4i8_2:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    movd %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v4i8_2:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v4i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v4i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v4i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v4i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <4 x i32> <i32 2, i32 6, i32 10, i32 14>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v4i8_3(<16 x i8>* %L, <4 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v4i8_3:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm2 = xmm2[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v4i8_3:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    movd %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v4i8_3:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v4i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v4i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $24, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v4i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v4i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $24, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <4 x i32> <i32 3, i32 7, i32 11, i32 15>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v8i16_to_v2i16_1(<8 x i16>* %L, <2 x i16>* %S) nounwind {
+; SSE-LABEL: shuffle_v8i16_to_v2i16_1:
+; SSE:       # BB#0:
+; SSE-NEXT:    pshufd {{.*#+}} xmm0 = mem[0,2,2,3]
+; SSE-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; SSE-NEXT:    movd %xmm0, (%rsi)
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_to_v2i16_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
+; AVX-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v8i16_to_v2i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v8i16_to_v2i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v8i16_to_v2i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v8i16_to_v2i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <8 x i16>, <8 x i16>* %L
+  %strided.vec = shufflevector <8 x i16> %vec, <8 x i16> undef, <2 x i32> <i32 1, i32 5>
+  store <2 x i16> %strided.vec, <2 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v8i16_to_v2i16_2(<8 x i16>* %L, <2 x i16>* %S) nounwind {
+; SSE-LABEL: shuffle_v8i16_to_v2i16_2:
+; SSE:       # BB#0:
+; SSE-NEXT:    pshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; SSE-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; SSE-NEXT:    movd %xmm0, (%rsi)
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_to_v2i16_2:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v8i16_to_v2i16_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v8i16_to_v2i16_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512VL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v8i16_to_v2i16_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v8i16_to_v2i16_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512BWVL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <8 x i16>, <8 x i16>* %L
+  %strided.vec = shufflevector <8 x i16> %vec, <8 x i16> undef, <2 x i32> <i32 2, i32 6>
+  store <2 x i16> %strided.vec, <2 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v8i16_to_v2i16_3(<8 x i16>* %L, <2 x i16>* %S) nounwind {
+; SSE-LABEL: shuffle_v8i16_to_v2i16_3:
+; SSE:       # BB#0:
+; SSE-NEXT:    pshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; SSE-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; SSE-NEXT:    movd %xmm0, (%rsi)
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_to_v2i16_3:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX-NEXT:    vmovd %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v8i16_to_v2i16_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v8i16_to_v2i16_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrlq $48, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v8i16_to_v2i16_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v8i16_to_v2i16_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlq $48, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <8 x i16>, <8 x i16>* %L
+  %strided.vec = shufflevector <8 x i16> %vec, <8 x i16> undef, <2 x i32> <i32 3, i32 7>
+  store <2 x i16> %strided.vec, <2 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_1(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_1:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,1,2,3]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_1:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512VL-NEXT:    vpsrlw $8, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlw $8, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 1, i32 9>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_2(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_2:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_2:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_2:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $16, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 2, i32 10>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_3(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_3:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_3:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_3:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrld $24, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrld $24, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 3, i32 11>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_4(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_4:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_4:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_4:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_4:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_4:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_4:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_4:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = mem[1,1,3,3]
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 4, i32 12>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_5(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_5:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    punpckhwd {{.*#+}} xmm0 = xmm0[4],xmm2[4],xmm0[5],xmm2[5],xmm0[6],xmm2[6],xmm0[7],xmm2[7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,1,2,3]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_5:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_5:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_5:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_5:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrlq $40, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_5:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_5:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlq $40, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 5, i32 13>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_6(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_6:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_6:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_6:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_6:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_6:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrlq $48, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_6:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_6:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlq $48, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 6, i32 14>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i8_to_v2i8_7(<16 x i8>* %L, <2 x i8>* %S) nounwind {
+; SSE2-LABEL: shuffle_v16i8_to_v2i8_7:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa (%rdi), %xmm0
+; SSE2-NEXT:    pxor %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    punpckhwd {{.*#+}} xmm0 = xmm0[4],xmm2[4],xmm0[5],xmm2[5],xmm0[6],xmm2[6],xmm0[7],xmm2[7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; SSE2-NEXT:    packuswb %xmm0, %xmm0
+; SSE2-NEXT:    movd %xmm0, %eax
+; SSE2-NEXT:    movw %ax, (%rsi)
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: shuffle_v16i8_to_v2i8_7:
+; SSE42:       # BB#0:
+; SSE42-NEXT:    movdqa (%rdi), %xmm0
+; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; SSE42-NEXT:    pextrw $0, %xmm0, (%rsi)
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v16i8_to_v2i8_7:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i8_to_v2i8_7:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512F-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i8_to_v2i8_7:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vpsrlq $56, (%rdi), %xmm0
+; AVX512VL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i8_to_v2i8_7:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %xmm0
+; AVX512BW-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpextrw $0, %xmm0, (%rsi)
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i8_to_v2i8_7:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vpsrlq $56, (%rdi), %xmm0
+; AVX512BWVL-NEXT:    vpmovqb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i8>, <16 x i8>* %L
+  %strided.vec = shufflevector <16 x i8> %vec, <16 x i8> undef, <2 x i32> <i32 7, i32 15>
+  store <2 x i8> %strided.vec, <2 x i8>* %S
+  ret void
+}
+

Propchange: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-128.ll
------------------------------------------------------------------------------
    svn:eol-style = native

Added: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll?rev=308672&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll (added)
+++ llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll Thu Jul 20 14:03:36 2017
@@ -0,0 +1,1255 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX --check-prefix=AVX2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512F
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512VL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BW
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw,+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BWVL
+
+define void @shuffle_v32i8_to_v16i8_1(<32 x i8>* %L, <16 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX1-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX2-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v16i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <16 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31>
+  store <16 x i8> %strided.vec, <16 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i16_to_v8i16_1(<16 x i16>* %L, <8 x i16>* %S) nounwind {
+; AVX1-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX1-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX2-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i16_to_v8i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i16>, <16 x i16>* %L
+  %strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
+  store <8 x i16> %strided.vec, <8 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v8i32_to_v4i32_1(<8 x i32>* %L, <4 x i32>* %S) nounwind {
+; AVX-LABEL: shuffle_v8i32_to_v4i32_1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovaps (%rdi), %ymm0
+; AVX-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX-NEXT:    vmovaps %xmm0, (%rsi)
+; AVX-NEXT:    vzeroupper
+; AVX-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v8i32_to_v4i32_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovaps (%rdi), %ymm0
+; AVX512F-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512F-NEXT:    vmovaps %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v8i32_to_v4i32_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512VL-NEXT:    vmovaps %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v8i32_to_v4i32_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovaps (%rdi), %ymm0
+; AVX512BW-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512BW-NEXT:    vmovaps %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v8i32_to_v4i32_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512BWVL-NEXT:    vmovaps %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <8 x i32>, <8 x i32>* %L
+  %strided.vec = shufflevector <8 x i32> %vec, <8 x i32> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
+  store <4 x i32> %strided.vec, <4 x i32>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v8i8_1(<32 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [1,1,5,5,9,9,13,13,13,13,5,5,12,12,13,13]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 1, i32 5, i32 9, i32 13, i32 17, i32 21, i32 25, i32 29>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v8i8_2(<32 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 2, i32 6, i32 10, i32 14, i32 18, i32 22, i32 26, i32 30>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v8i8_3(<32 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [3,3,7,7,11,11,15,15,7,7,15,15,6,6,7,7]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 3, i32 7, i32 11, i32 15, i32 19, i32 23, i32 27, i32 31>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v16i16_to_v4i16_1(<16 x i16>* %L, <4 x i16>* %S) nounwind {
+; AVX1-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,1,3,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,1,3,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,1,3,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,1,3,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i16>, <16 x i16>* %L
+  %strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 1, i32 5, i32 9, i32 13>
+  store <4 x i16> %strided.vec, <4 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v16i16_to_v4i16_2(<16 x i16>* %L, <4 x i16>* %S) nounwind {
+; AVX1-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512VL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512BWVL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i16>, <16 x i16>* %L
+  %strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 2, i32 6, i32 10, i32 14>
+  store <4 x i16> %strided.vec, <4 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v16i16_to_v4i16_3(<16 x i16>* %L, <4 x i16>* %S) nounwind {
+; AVX1-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX1-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX1-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX1-NEXT:    vmovq %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX2-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX2-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX2-NEXT:    vmovq %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512BW-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512BW-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdw %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <16 x i16>, <16 x i16>* %L
+  %strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 3, i32 7, i32 11, i32 15>
+  store <4 x i16> %strided.vec, <4 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_1(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,0,1,1,8,8,9,9,8,8,9,9,10,10,11,11]
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpsrld $16, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpsrld $16, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [0,0,1,1,8,8,9,9,8,8,9,9,10,10,11,11]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpsrld $16, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpsrld $16, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 1, i32 9, i32 17, i32 25>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_2(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,1,3,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,1,3,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[1,1,3,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,1,3,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 2, i32 10, i32 18, i32 26>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_3(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = [10,10,11,11,2,2,3,3,8,8,9,9,10,10,11,11]
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [10,10,11,11,2,2,3,3,8,8,9,9,10,10,11,11]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 3, i32 11, i32 19, i32 27>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_4(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_4:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[1,3],xmm1[1,3]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 4, i32 12, i32 20, i32 28>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_5(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512VL-NEXT:    vpunpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512VL-NEXT:    vpunpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_5:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512BWVL-NEXT:    vpunpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512BWVL-NEXT:    vpunpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 5, i32 13, i32 21, i32 29>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_6(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_6:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512BWVL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,1,3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 6, i32 14, i32 22, i32 30>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i8_to_v4i8_7(<32 x i8>* %L, <4 x i8>* %S) nounwind {
+; AVX1-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vmovd %xmm0, (%rsi)
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX2-NEXT:    vmovd %xmm0, (%rsi)
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512F-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512F-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512F-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm2 = [7,7,14,14,15,15,14,14,15,15,4,4,5,5,6,6]
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512VL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512BW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BW-NEXT:    vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX512BW-NEXT:    vmovd %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_7:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu (%rdi), %ymm0
+; AVX512BWVL-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} xmm2 = [7,7,14,14,15,15,14,14,15,15,4,4,5,5,6,6]
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX512BWVL-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX512BWVL-NEXT:    vpmovdb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i8>, <32 x i8>* %L
+  %strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 7, i32 15, i32 23, i32 31>
+  store <4 x i8> %strided.vec, <4 x i8>* %S
+  ret void
+}
+

Propchange: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-256.ll
------------------------------------------------------------------------------
    svn:eol-style = native

Added: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll?rev=308672&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll (added)
+++ llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll Thu Jul 20 14:03:36 2017
@@ -0,0 +1,1479 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512F
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512VL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BW
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw,+avx512vl | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BWVL
+
+define void @shuffle_v64i8_to_v32i8_1(<64 x i8>* %L, <32 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v32i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[u,u,u,u,u,u,u,u,1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31]
+; AVX512F-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31,u,u,u,u,u,u,u,u]
+; AVX512F-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512F-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512F-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v32i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[u,u,u,u,u,u,u,u,1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31]
+; AVX512VL-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31,u,u,u,u,u,u,u,u]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512VL-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512VL-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v32i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512BW-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[u,u,u,u,u,u,u,u,1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31]
+; AVX512BW-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31,u,u,u,u,u,u,u,u]
+; AVX512BW-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512BW-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512BW-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v32i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512BWVL-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[u,u,u,u,u,u,u,u,1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31]
+; AVX512BWVL-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31,u,u,u,u,u,u,u,u]
+; AVX512BWVL-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512BWVL-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512BWVL-NEXT:    vmovdqu %ymm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <32 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31, i32 33, i32 35, i32 37, i32 39, i32 41, i32 43, i32 45, i32 47, i32 49, i32 51, i32 53, i32 55, i32 57, i32 59, i32 61, i32 63>
+  store <32 x i8> %strided.vec, <32 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i16_to_v16i16_1(<32 x i16>* %L, <16 x i16>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v32i16_to_v16i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[6,7,2,3,4,5,6,7,2,3,6,7,10,11,14,15,22,23,18,19,20,21,22,23,18,19,22,23,26,27,30,31]
+; AVX512F-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15,18,19,22,23,26,27,30,31,30,31,26,27,28,29,30,31]
+; AVX512F-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512F-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512F-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i16_to_v16i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[6,7,2,3,4,5,6,7,2,3,6,7,10,11,14,15,22,23,18,19,20,21,22,23,18,19,22,23,26,27,30,31]
+; AVX512VL-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15,18,19,22,23,26,27,30,31,30,31,26,27,28,29,30,31]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512VL-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512VL-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i16_to_v16i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512BW-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[6,7,2,3,4,5,6,7,2,3,6,7,10,11,14,15,22,23,18,19,20,21,22,23,18,19,22,23,26,27,30,31]
+; AVX512BW-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15,18,19,22,23,26,27,30,31,30,31,26,27,28,29,30,31]
+; AVX512BW-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512BW-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512BW-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i16_to_v16i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512BWVL-NEXT:    vmovdqu {{.*#+}} ymm2 = [1,3,5,7,17,19,21,23,9,11,13,15,25,27,29,31]
+; AVX512BWVL-NEXT:    vpermi2w %ymm1, %ymm0, %ymm2
+; AVX512BWVL-NEXT:    vpermq {{.*#+}} ymm0 = ymm2[0,2,1,3]
+; AVX512BWVL-NEXT:    vmovdqu %ymm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i16>, <32 x i16>* %L
+  %strided.vec = shufflevector <32 x i16> %vec, <32 x i16> undef, <16 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31>
+  store <16 x i16> %strided.vec, <16 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v16i32_to_v8i32_1(<16 x i32>* %L, <8 x i32>* %S) nounwind {
+; AVX512-LABEL: shuffle_v16i32_to_v8i32_1:
+; AVX512:       # BB#0:
+; AVX512-NEXT:    vmovdqa32 (%rdi), %zmm0
+; AVX512-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512-NEXT:    vshufps {{.*#+}} ymm0 = ymm0[1,3],ymm1[1,3],ymm0[5,7],ymm1[5,7]
+; AVX512-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512-NEXT:    vmovdqa %ymm0, (%rsi)
+; AVX512-NEXT:    vzeroupper
+; AVX512-NEXT:    retq
+  %vec = load <16 x i32>, <16 x i32>* %L
+  %strided.vec = shufflevector <16 x i32> %vec, <16 x i32> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
+  store <8 x i32> %strided.vec, <8 x i32>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v16i8_1(<64 x i8>* %L, <16 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v16i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,1,5,9,13,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v16i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,1,5,9,13,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v16i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrb $5, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrb $1, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrb $1, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $5, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v16i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <16 x i32> <i32 1, i32 5, i32 9, i32 13, i32 17, i32 21, i32 25, i32 29, i32 33, i32 37, i32 41, i32 45, i32 49, i32 53, i32 57, i32 61>
+  store <16 x i8> %strided.vec, <16 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v16i8_2(<64 x i8>* %L, <16 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v16i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,2,6,10,14,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v16i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,2,6,10,14,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v16i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrb $6, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrb $2, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrb $2, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $6, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v16i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <16 x i32> <i32 2, i32 6, i32 10, i32 14, i32 18, i32 22, i32 26, i32 30, i32 34, i32 38, i32 42, i32 46, i32 50, i32 54, i32 58, i32 62>
+  store <16 x i8> %strided.vec, <16 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v16i8_3(<64 x i8>* %L, <16 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v16i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,3,7,11,15,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v16i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,u,u,3,7,11,15,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v16i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrb $7, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrb $3, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrb $3, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $7, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v16i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $5, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $7, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $9, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $11, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $13, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $15, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <16 x i32> <i32 3, i32 7, i32 11, i32 15, i32 19, i32 23, i32 27, i32 31, i32 35, i32 39, i32 43, i32 47, i32 51, i32 55, i32 59, i32 63>
+  store <16 x i8> %strided.vec, <16 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v32i16_to_v8i16_1(<32 x i16>* %L, <8 x i16>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v32i16_to_v8i16_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,1,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,1,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[1,3,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i16_to_v8i16_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,1,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[1,3,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i16_to_v8i16_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrw $5, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrw $1, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrw $1, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $2, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $5, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrw $1, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3,4],xmm2[5],xmm1[6,7]
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrw $1, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $5, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrw $7, %eax, %xmm1, %xmm0
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i16_to_v8i16_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrw $5, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrw $1, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrw $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $5, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrw $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3,4],xmm2[5],xmm1[6,7]
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrw $1, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $5, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrw $7, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i16>, <32 x i16>* %L
+  %strided.vec = shufflevector <32 x i16> %vec, <32 x i16> undef, <8 x i32> <i32 1, i32 5, i32 9, i32 13, i32 17, i32 21, i32 25, i32 29>
+  store <8 x i16> %strided.vec, <8 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v32i16_to_v8i16_2(<32 x i16>* %L, <8 x i16>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v32i16_to_v8i16_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,2,0,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,2,0,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[2,0,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i16_to_v8i16_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,2,0,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,2,0,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[2,0,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i16_to_v8i16_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrw $6, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrw $2, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2],xmm1[3,4,5,6,7]
+; AVX512BW-NEXT:    vpextrw $6, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrw $2, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $6, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $5, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrw $2, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $6, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrw $7, %eax, %xmm1, %xmm0
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i16_to_v8i16_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrw $6, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrw $2, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2],xmm1[3,4,5,6,7]
+; AVX512BWVL-NEXT:    vpextrw $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrw $2, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $5, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrw $2, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $6, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrw $7, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i16>, <32 x i16>* %L
+  %strided.vec = shufflevector <32 x i16> %vec, <32 x i16> undef, <8 x i32> <i32 2, i32 6, i32 10, i32 14, i32 18, i32 22, i32 26, i32 30>
+  store <8 x i16> %strided.vec, <8 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v32i16_to_v8i16_3(<32 x i16>* %L, <8 x i16>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v32i16_to_v8i16_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,3,1,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,3,1,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[3,1,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512F-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512F-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512F-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i16_to_v8i16_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[0,1,3,1,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm1 = xmm1[0,1,3,1,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm2 = xmm2[3,1,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
+; AVX512VL-NEXT:    vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
+; AVX512VL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX512VL-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v32i16_to_v8i16_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BW-NEXT:    vpextrw $7, %xmm0, %eax
+; AVX512BW-NEXT:    vpextrw $3, %xmm0, %ecx
+; AVX512BW-NEXT:    vmovd %ecx, %xmm1
+; AVX512BW-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrw $3, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $2, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $7, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BW-NEXT:    vpextrw $3, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpextrw $7, %xmm2, %eax
+; AVX512BW-NEXT:    vpinsrw $5, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BW-NEXT:    vpextrw $3, %xmm0, %eax
+; AVX512BW-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BW-NEXT:    vpblendw {{.*#+}} xmm0 = xmm1[0,1,2,3,4,5,6],xmm0[7]
+; AVX512BW-NEXT:    vmovdqa %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v32i16_to_v8i16_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu16 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrw $7, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrw $3, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrw $1, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrw $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $3, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrw $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrw $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrw $5, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrw $3, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrw $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpblendw {{.*#+}} xmm0 = xmm1[0,1,2,3,4,5,6],xmm0[7]
+; AVX512BWVL-NEXT:    vmovdqu %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <32 x i16>, <32 x i16>* %L
+  %strided.vec = shufflevector <32 x i16> %vec, <32 x i16> undef, <8 x i32> <i32 3, i32 7, i32 11, i32 15, i32 19, i32 23, i32 27, i32 31>
+  store <8 x i16> %strided.vec, <8 x i16>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_1(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_1:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,1,9,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_1:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,1,9,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_1:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $1, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $1, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $9, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $1, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $9, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $1, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_1:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $1, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $9, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 1, i32 9, i32 17, i32 25, i32 33, i32 41, i32 49, i32 57>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_2(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_2:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,2,10,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_2:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,2,10,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_2:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $2, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $2, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $10, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $2, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $10, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $2, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_2:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $2, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $10, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 2, i32 10, i32 18, i32 26, i32 34, i32 42, i32 50, i32 58>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_3(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_3:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,3,11,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_3:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,3,11,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_3:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $3, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $3, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $11, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $3, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $11, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $3, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_3:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $3, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $11, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 3, i32 11, i32 19, i32 27, i32 35, i32 43, i32 51, i32 59>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_4(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_4:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,4,12,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_4:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,4,12,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_4:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $12, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $4, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $12, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $4, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $12, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $4, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $12, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $4, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_4:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $12, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $4, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $4, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $12, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $4, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $12, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $4, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $12, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 4, i32 12, i32 20, i32 28, i32 36, i32 44, i32 52, i32 60>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_5(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_5:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,5,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_5:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,5,13,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_5:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $5, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $5, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $13, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $5, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $13, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $5, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_5:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $5, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $13, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 5, i32 13, i32 21, i32 29, i32 37, i32 45, i32 53, i32 61>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_6(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_6:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,6,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_6:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,6,14,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_6:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $6, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $6, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $14, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $6, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $14, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $6, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_6:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $6, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $14, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 6, i32 14, i32 22, i32 30, i32 38, i32 46, i32 54, i32 62>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+
+define void @shuffle_v64i8_to_v8i8_7(<64 x i8>* %L, <8 x i8>* %S) nounwind {
+; AVX512F-LABEL: shuffle_v64i8_to_v8i8_7:
+; AVX512F:       # BB#0:
+; AVX512F-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512F-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,7,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT:    vmovdqa {{.*#+}} xmm3 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512F-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512F-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512F-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512F-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512F-NEXT:    vzeroupper
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v64i8_to_v8i8_7:
+; AVX512VL:       # BB#0:
+; AVX512VL-NEXT:    vmovdqa (%rdi), %ymm0
+; AVX512VL-NEXT:    vmovdqa 32(%rdi), %ymm1
+; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <u,u,7,15,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm1, %xmm1
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3]
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} xmm3 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm2, %xmm2
+; AVX512VL-NEXT:    vpshufb %xmm3, %xmm0, %xmm0
+; AVX512VL-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; AVX512VL-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3]
+; AVX512VL-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512VL-NEXT:    vzeroupper
+; AVX512VL-NEXT:    retq
+;
+; AVX512BW-LABEL: shuffle_v64i8_to_v8i8_7:
+; AVX512BW:       # BB#0:
+; AVX512BW-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BW-NEXT:    vextracti32x4 $3, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm1, %r8d
+; AVX512BW-NEXT:    vpextrb $7, %xmm1, %r9d
+; AVX512BW-NEXT:    vextracti32x4 $2, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm1, %r10d
+; AVX512BW-NEXT:    vpextrb $7, %xmm1, %r11d
+; AVX512BW-NEXT:    vextracti32x4 $1, %zmm0, %xmm1
+; AVX512BW-NEXT:    vpextrb $15, %xmm1, %eax
+; AVX512BW-NEXT:    vpextrb $7, %xmm1, %ecx
+; AVX512BW-NEXT:    vpextrb $15, %xmm0, %edx
+; AVX512BW-NEXT:    vpextrb $7, %xmm0, %edi
+; AVX512BW-NEXT:    vmovd %edi, %xmm0
+; AVX512BW-NEXT:    vpinsrb $1, %edx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $4, %r11d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $5, %r10d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $6, %r9d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vpinsrb $7, %r8d, %xmm0, %xmm0
+; AVX512BW-NEXT:    vmovq %xmm0, (%rsi)
+; AVX512BW-NEXT:    vzeroupper
+; AVX512BW-NEXT:    retq
+;
+; AVX512BWVL-LABEL: shuffle_v64i8_to_v8i8_7:
+; AVX512BWVL:       # BB#0:
+; AVX512BWVL-NEXT:    vmovdqu8 (%rdi), %zmm0
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm0, %ecx
+; AVX512BWVL-NEXT:    vmovd %ecx, %xmm1
+; AVX512BWVL-NEXT:    vpinsrb $2, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $1, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $4, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $6, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $2, %zmm0, %xmm2
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $8, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX512BWVL-NEXT:    vpinsrb $10, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vextracti32x4 $3, %zmm0, %xmm0
+; AVX512BWVL-NEXT:    vpextrb $7, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $12, %eax, %xmm1, %xmm1
+; AVX512BWVL-NEXT:    vpextrb $15, %xmm0, %eax
+; AVX512BWVL-NEXT:    vpinsrb $14, %eax, %xmm1, %xmm0
+; AVX512BWVL-NEXT:    vpmovwb %xmm0, (%rsi)
+; AVX512BWVL-NEXT:    vzeroupper
+; AVX512BWVL-NEXT:    retq
+  %vec = load <64 x i8>, <64 x i8>* %L
+  %strided.vec = shufflevector <64 x i8> %vec, <64 x i8> undef, <8 x i32> <i32 7, i32 15, i32 23, i32 31, i32 39, i32 47, i32 55, i32 63>
+  store <8 x i8> %strided.vec, <8 x i8>* %S
+  ret void
+}
+

Propchange: llvm/trunk/test/CodeGen/X86/shuffle-strided-with-offset-512.ll
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    svn:eol-style = native




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