diff --git a/test/CodeGen/X86/vec_shift8.ll b/test/CodeGen/X86/vec_shift8.ll
deleted file mode 100644
index 9d19f667ea9..00000000000
--- a/test/CodeGen/X86/vec_shift8.ll
+++ /dev/null
@@ -1,527 +0,0 @@
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=SSE2
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE41
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX
-
-;
-; Vectorized integer shifts
-;
-
-define <2 x i64> @shl_8i16(<8 x i16> %r, <8 x i16> %a) nounwind readnone ssp {
-entry:
-; ALL-NOT: shll
-;
-; SSE2:       psllw   $12, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psllw   $8, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psllw   $4, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psllw   $2, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  psraw   $15, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  pandn   %xmm0, %xmm2
-; SSE2-NEXT:  psllw   $1, %xmm0
-; SSE2-NEXT:  pand    %xmm1, %xmm0
-; SSE2-NEXT:  por     %xmm2, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa   %xmm0, %xmm2
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: psllw    $12, %xmm0
-; SSE41-NEXT: psllw    $4, %xmm1
-; SSE41-NEXT: por      %xmm0, %xmm1
-; SSE41-NEXT: movdqa   %xmm1, %xmm3
-; SSE41-NEXT: paddw    %xmm3, %xmm3
-; SSE41-NEXT: movdqa   %xmm2, %xmm4
-; SSE41-NEXT: psllw    $8, %xmm4
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm4, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm1
-; SSE41-NEXT: psllw    $4, %xmm1
-; SSE41-NEXT: movdqa   %xmm3, %xmm0
-; SSE41-NEXT: pblendvb %xmm1, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm1
-; SSE41-NEXT: psllw    $2, %xmm1
-; SSE41-NEXT: paddw    %xmm3, %xmm3
-; SSE41-NEXT: movdqa   %xmm3, %xmm0
-; SSE41-NEXT: pblendvb %xmm1, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm1
-; SSE41-NEXT: psllw    $1, %xmm1
-; SSE41-NEXT: paddw    %xmm3, %xmm3
-; SSE41-NEXT: movdqa   %xmm3, %xmm0
-; SSE41-NEXT: pblendvb %xmm1, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw    $12, %xmm1, %xmm2
-; AVX-NEXT:   vpsllw    $4, %xmm1, %xmm1
-; AVX-NEXT:   vpor      %xmm2, %xmm1, %xmm1
-; AVX-NEXT:   vpaddw    %xmm1, %xmm1, %xmm2
-; AVX-NEXT:   vpsllw    $8, %xmm0, %xmm3
-; AVX-NEXT:   vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsllw    $4, %xmm0, %xmm1
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsllw    $2, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsllw    $1, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %shl = shl <8 x i16> %r, %a
-  %tmp2 = bitcast <8 x i16> %shl to <2 x i64>
-  ret <2 x i64> %tmp2
-}
-
-define <2 x i64> @shl_16i8(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
-entry:
-; SSE2:       psllw   $5, %xmm1
-; SSE2-NEXT:  pxor    %xmm2, %xmm2
-; SSE2-NEXT:  pxor    %xmm3, %xmm3
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
-; SSE2-NEXT:  movdqa  %xmm3, %xmm4
-; SSE2-NEXT:  pandn   %xmm0, %xmm4
-; SSE2-NEXT:  psllw   $4, %xmm0
-; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
-; SSE2-NEXT:  pand    %xmm3, %xmm0
-; SSE2-NEXT:  por     %xmm4, %xmm0
-; SSE2-NEXT:  paddb   %xmm1, %xmm1
-; SSE2-NEXT:  pxor    %xmm3, %xmm3
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
-; SSE2-NEXT:  movdqa  %xmm3, %xmm4
-; SSE2-NEXT:  pandn   %xmm0, %xmm4
-; SSE2-NEXT:  psllw   $2, %xmm0
-; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
-; SSE2-NEXT:  pand    %xmm3, %xmm0
-; SSE2-NEXT:  por     %xmm4, %xmm0
-; SSE2-NEXT:  paddb   %xmm1, %xmm1
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm1
-; SSE2-NEXT:  pandn   %xmm0, %xmm1
-; SSE2-NEXT:  paddb   %xmm0, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm1, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa   %xmm0, %xmm2
-; SSE41-NEXT: psllw    $5, %xmm1
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: psllw    $4, %xmm3
-; SSE41-NEXT: pand     {{.*}}(%rip), %xmm3
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: psllw    $2, %xmm3
-; SSE41-NEXT: pand     {{.*}}(%rip), %xmm3
-; SSE41-NEXT: paddb    %xmm1, %xmm1
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: paddb    %xmm3, %xmm3
-; SSE41-NEXT: paddb    %xmm1, %xmm1
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw    $5, %xmm1, %xmm1
-; AVX-NEXT:   vpsllw    $4, %xmm0, %xmm2
-; AVX-NEXT:   vpand     {{.*}}(%rip), %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   vpsllw    $2, %xmm0, %xmm2
-; AVX-NEXT:   vpand     {{.*}}(%rip), %xmm2, %xmm2
-; AVX-NEXT:   vpaddb    %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   vpaddb    %xmm0, %xmm0, %xmm2
-; AVX-NEXT:   vpaddb    %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %shl = shl <16 x i8> %r, %a
-  %tmp2 = bitcast <16 x i8> %shl to <2 x i64>
-  ret <2 x i64> %tmp2
-}
-
-define <2 x i64> @ashr_8i16(<8 x i16> %r, <8 x i16> %a) nounwind readnone ssp {
-entry:
-; ALL-NOT: sarw
-;
-; SSE2:       psllw   $12, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psraw   $8, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psraw   $4, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psraw   $2, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  psraw   $15, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  pandn   %xmm0, %xmm2
-; SSE2-NEXT:  psraw   $1, %xmm0
-; SSE2-NEXT:  pand    %xmm1, %xmm0
-; SSE2-NEXT:  por     %xmm2, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa    %xmm0, %xmm2
-; SSE41-NEXT: movdqa    %xmm1, %xmm0
-; SSE41-NEXT: psllw     $12, %xmm0
-; SSE41-NEXT: psllw     $4, %xmm1
-; SSE41-NEXT: por       %xmm0, %xmm1
-; SSE41-NEXT: movdqa    %xmm1, %xmm3
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm2, %xmm4
-; SSE41-NEXT: psraw     $8, %xmm4
-; SSE41-NEXT: movdqa    %xmm1, %xmm0
-; SSE41-NEXT: pblendvb  %xmm4, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psraw     $4, %xmm1
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psraw     $2, %xmm1
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psraw     $1, %xmm1
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw    $12, %xmm1, %xmm2
-; AVX-NEXT:   vpsllw    $4, %xmm1, %xmm1
-; AVX-NEXT:   vpor      %xmm2, %xmm1, %xmm1
-; AVX-NEXT:   vpaddw    %xmm1, %xmm1, %xmm2
-; AVX-NEXT:   vpsraw    $8, %xmm0, %xmm3
-; AVX-NEXT:   vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsraw    $4, %xmm0, %xmm1
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsraw    $2, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsraw    $1, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %ashr = ashr <8 x i16> %r, %a
-  %tmp2 = bitcast <8 x i16> %ashr to <2 x i64>
-  ret <2 x i64> %tmp2
-}
-
-define <2 x i64> @ashr_16i8(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
-entry:
-; ALL-NOT: sarb
-;
-; SSE2:       punpckhbw {{.*#}} xmm2 = xmm2[8],xmm0[8],xmm2[9],xmm0[9],xmm2[10],xmm0[10],xmm2[11],xmm0[11],xmm2[12],xmm0[12],xmm2[13],xmm0[13],xmm2[14],xmm0[14],xmm2[15],xmm0[15]
-; SSE2-NEXT:  psllw     $5, %xmm1
-; SSE2-NEXT:  punpckhbw {{.*#}} xmm4 = xmm4[8],xmm1[8],xmm4[9],xmm1[9],xmm4[10],xmm1[10],xmm4[11],xmm1[11],xmm4[12],xmm1[12],xmm4[13],xmm1[13],xmm4[14],xmm1[14],xmm4[15],xmm1[15]
-; SSE2-NEXT:  pxor      %xmm3, %xmm3
-; SSE2-NEXT:  pxor      %xmm5, %xmm5
-; SSE2-NEXT:  pcmpgtw   %xmm4, %xmm5
-; SSE2-NEXT:  movdqa    %xmm5, %xmm6
-; SSE2-NEXT:  pandn     %xmm2, %xmm6
-; SSE2-NEXT:  psraw     $4, %xmm2
-; SSE2-NEXT:  pand      %xmm5, %xmm2
-; SSE2-NEXT:  por       %xmm6, %xmm2
-; SSE2-NEXT:  paddw     %xmm4, %xmm4
-; SSE2-NEXT:  pxor      %xmm5, %xmm5
-; SSE2-NEXT:  pcmpgtw   %xmm4, %xmm5
-; SSE2-NEXT:  movdqa    %xmm5, %xmm6
-; SSE2-NEXT:  pandn     %xmm2, %xmm6
-; SSE2-NEXT:  psraw     $2, %xmm2
-; SSE2-NEXT:  pand      %xmm5, %xmm2
-; SSE2-NEXT:  por       %xmm6, %xmm2
-; SSE2-NEXT:  paddw     %xmm4, %xmm4
-; SSE2-NEXT:  pxor      %xmm5, %xmm5
-; SSE2-NEXT:  pcmpgtw   %xmm4, %xmm5
-; SSE2-NEXT:  movdqa    %xmm5, %xmm4
-; SSE2-NEXT:  pandn     %xmm2, %xmm4
-; SSE2-NEXT:  psraw     $1, %xmm2
-; SSE2-NEXT:  pand      %xmm5, %xmm2
-; SSE2-NEXT:  por       %xmm4, %xmm2
-; SSE2-NEXT:  psrlw     $8, %xmm2
-; SSE2-NEXT:  punpcklbw {{.*#}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
-; SSE2-NEXT:  punpcklbw {{.*#}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
-; SSE2-NEXT:  pxor      %xmm4, %xmm4
-; SSE2-NEXT:  pcmpgtw   %xmm1, %xmm4
-; SSE2-NEXT:  movdqa    %xmm4, %xmm5
-; SSE2-NEXT:  pandn     %xmm0, %xmm5
-; SSE2-NEXT:  psraw     $4, %xmm0
-; SSE2-NEXT:  pand      %xmm4, %xmm0
-; SSE2-NEXT:  por       %xmm5, %xmm0
-; SSE2-NEXT:  paddw     %xmm1, %xmm1
-; SSE2-NEXT:  pxor      %xmm4, %xmm4
-; SSE2-NEXT:  pcmpgtw   %xmm1, %xmm4
-; SSE2-NEXT:  movdqa    %xmm4, %xmm5
-; SSE2-NEXT:  pandn     %xmm0, %xmm5
-; SSE2-NEXT:  psraw     $2, %xmm0
-; SSE2-NEXT:  pand      %xmm4, %xmm0
-; SSE2-NEXT:  por       %xmm5, %xmm0
-; SSE2-NEXT:  paddw     %xmm1, %xmm1
-; SSE2-NEXT:  pcmpgtw   %xmm1, %xmm3
-; SSE2-NEXT:  movdqa    %xmm3, %xmm1
-; SSE2-NEXT:  pandn     %xmm0, %xmm1
-; SSE2-NEXT:  psraw     $1, %xmm0
-; SSE2-NEXT:  pand      %xmm3, %xmm0
-; SSE2-NEXT:  por       %xmm1, %xmm0
-; SSE2-NEXT:  psrlw     $8, %xmm0
-; SSE2-NEXT:  packuswb  %xmm2, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa    %xmm0, %xmm2
-; SSE41-NEXT: psllw     $5, %xmm1
-; SSE41-NEXT: punpckhbw {{.*#}} xmm0 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
-; SSE41-NEXT: punpckhbw {{.*#}} xmm3 = xmm3[8],xmm2[8],xmm3[9],xmm2[9],xmm3[10],xmm2[10],xmm3[11],xmm2[11],xmm3[12],xmm2[12],xmm3[13],xmm2[13],xmm3[14],xmm2[14],xmm3[15],xmm2[15]
-; SSE41-NEXT: movdqa    %xmm3, %xmm4
-; SSE41-NEXT: psraw     $4, %xmm4
-; SSE41-NEXT: pblendvb  %xmm4, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm4
-; SSE41-NEXT: psraw     $2, %xmm4
-; SSE41-NEXT: paddw     %xmm0, %xmm0
-; SSE41-NEXT: pblendvb  %xmm4, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm4
-; SSE41-NEXT: psraw     $1, %xmm4
-; SSE41-NEXT: paddw     %xmm0, %xmm0
-; SSE41-NEXT: pblendvb  %xmm4, %xmm3
-; SSE41-NEXT: psrlw     $8, %xmm3
-; SSE41-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]
-; SSE41-NEXT: punpcklbw {{.*#}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3],xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
-; SSE41-NEXT: movdqa    %xmm1, %xmm2
-; SSE41-NEXT: psraw     $4, %xmm2
-; SSE41-NEXT: pblendvb  %xmm2, %xmm1
-; SSE41-NEXT: movdqa    %xmm1, %xmm2
-; SSE41-NEXT: psraw     $2, %xmm2
-; SSE41-NEXT: paddw     %xmm0, %xmm0
-; SSE41-NEXT: pblendvb  %xmm2, %xmm1
-; SSE41-NEXT: movdqa    %xmm1, %xmm2
-; SSE41-NEXT: psraw     $1, %xmm2
-; SSE41-NEXT: paddw     %xmm0, %xmm0
-; SSE41-NEXT: pblendvb  %xmm2, %xmm1
-; SSE41-NEXT: psrlw     $8, %xmm1
-; SSE41-NEXT: packuswb  %xmm3, %xmm1
-; SSE41-NEXT: movdqa    %xmm1, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw     $5, %xmm1, %xmm1
-; AVX-NEXT:   vpunpckhbw {{.*#}} xmm2 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
-; AVX-NEXT:   vpunpckhbw {{.*#}} xmm3 = xmm0[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
-; AVX-NEXT:   vpsraw     $4, %xmm3, %xmm4
-; AVX-NEXT:   vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
-; AVX-NEXT:   vpsraw     $2, %xmm3, %xmm4
-; AVX-NEXT:   vpaddw     %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
-; AVX-NEXT:   vpsraw     $1, %xmm3, %xmm4
-; AVX-NEXT:   vpaddw     %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb  %xmm2, %xmm4, %xmm3, %xmm2
-; AVX-NEXT:   vpsrlw     $8, %xmm2, %xmm2
-; AVX-NEXT:   vpunpcklbw {{.*#}} xmm1 = 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]
-; AVX-NEXT:   vpunpcklbw {{.*#}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
-; AVX-NEXT:   vpsraw     $4, %xmm0, %xmm3
-; AVX-NEXT:   vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsraw     $2, %xmm0, %xmm3
-; AVX-NEXT:   vpaddw     %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsraw     $1, %xmm0, %xmm3
-; AVX-NEXT:   vpaddw     %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw     $8, %xmm0, %xmm0
-; AVX-NEXT:   vpackuswb  %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %ashr = ashr <16 x i8> %r, %a
-  %tmp2 = bitcast <16 x i8> %ashr to <2 x i64>
-  ret <2 x i64> %tmp2
-}
-
-define <2 x i64> @lshr_8i16(<8 x i16> %r, <8 x i16> %a) nounwind readnone ssp {
-entry:
-; ALL-NOT: shrl
-;
-; SSE2:       psllw   $12, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psrlw   $8, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psrlw   $4, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  psraw   $15, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm3
-; SSE2-NEXT:  pandn   %xmm0, %xmm3
-; SSE2-NEXT:  psrlw   $2, %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm3, %xmm0
-; SSE2-NEXT:  paddw   %xmm1, %xmm1
-; SSE2-NEXT:  psraw   $15, %xmm1
-; SSE2-NEXT:  movdqa  %xmm1, %xmm2
-; SSE2-NEXT:  pandn   %xmm0, %xmm2
-; SSE2-NEXT:  psrlw   $1, %xmm0
-; SSE2-NEXT:  pand    %xmm1, %xmm0
-; SSE2-NEXT:  por     %xmm2, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa    %xmm0, %xmm2
-; SSE41-NEXT: movdqa    %xmm1, %xmm0
-; SSE41-NEXT: psllw     $12, %xmm0
-; SSE41-NEXT: psllw     $4, %xmm1
-; SSE41-NEXT: por       %xmm0, %xmm1
-; SSE41-NEXT: movdqa    %xmm1, %xmm3
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm2, %xmm4
-; SSE41-NEXT: psrlw     $8, %xmm4
-; SSE41-NEXT: movdqa    %xmm1, %xmm0
-; SSE41-NEXT: pblendvb  %xmm4, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psrlw     $4, %xmm1
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psrlw     $2, %xmm1
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm1
-; SSE41-NEXT: psrlw     $1, %xmm1
-; SSE41-NEXT: paddw     %xmm3, %xmm3
-; SSE41-NEXT: movdqa    %xmm3, %xmm0
-; SSE41-NEXT: pblendvb  %xmm1, %xmm2
-; SSE41-NEXT: movdqa    %xmm2, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw    $12, %xmm1, %xmm2
-; AVX-NEXT:   vpsllw    $4, %xmm1, %xmm1
-; AVX-NEXT:   vpor      %xmm2, %xmm1, %xmm1
-; AVX-NEXT:   vpaddw    %xmm1, %xmm1, %xmm2
-; AVX-NEXT:   vpsrlw    $8, %xmm0, %xmm3
-; AVX-NEXT:   vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw    $4, %xmm0, %xmm1
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw    $2, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw    $1, %xmm0, %xmm1
-; AVX-NEXT:   vpaddw    %xmm2, %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %lshr = lshr <8 x i16> %r, %a
-  %tmp2 = bitcast <8 x i16> %lshr to <2 x i64>
-  ret <2 x i64> %tmp2
-}
-
-define <2 x i64> @lshr_16i8(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
-entry:
-; ALL-NOT: shrb
-;
-; SSE2:       psllw   $5, %xmm1
-; SSE2-NEXT:  pxor    %xmm2, %xmm2
-; SSE2-NEXT:  pxor    %xmm3, %xmm3
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
-; SSE2-NEXT:  movdqa  %xmm3, %xmm4
-; SSE2-NEXT:  pandn   %xmm0, %xmm4
-; SSE2-NEXT:  psrlw   $4, %xmm0
-; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
-; SSE2-NEXT:  pand    %xmm3, %xmm0
-; SSE2-NEXT:  por     %xmm4, %xmm0
-; SSE2-NEXT:  paddb   %xmm1, %xmm1
-; SSE2-NEXT:  pxor    %xmm3, %xmm3
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
-; SSE2-NEXT:  movdqa  %xmm3, %xmm4
-; SSE2-NEXT:  pandn   %xmm0, %xmm4
-; SSE2-NEXT:  psrlw   $2, %xmm0
-; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
-; SSE2-NEXT:  pand    %xmm3, %xmm0
-; SSE2-NEXT:  por     %xmm4, %xmm0
-; SSE2-NEXT:  paddb   %xmm1, %xmm1
-; SSE2-NEXT:  pcmpgtb %xmm1, %xmm2
-; SSE2-NEXT:  movdqa  %xmm2, %xmm1
-; SSE2-NEXT:  pandn   %xmm0, %xmm1
-; SSE2-NEXT:  psrlw   $1, %xmm0
-; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
-; SSE2-NEXT:  pand    %xmm2, %xmm0
-; SSE2-NEXT:  por     %xmm1, %xmm0
-; SSE2-NEXT:  retq
-;
-; SSE41:      movdqa   %xmm0, %xmm2
-; SSE41-NEXT: psllw    $5, %xmm1
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: psrlw    $4, %xmm3
-; SSE41-NEXT: pand     {{.*}}(%rip), %xmm3
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: psrlw    $2, %xmm3
-; SSE41-NEXT: pand     {{.*}}(%rip), %xmm3
-; SSE41-NEXT: paddb    %xmm1, %xmm1
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm3
-; SSE41-NEXT: psrlw    $1, %xmm3
-; SSE41-NEXT: pand     {{.*}}(%rip), %xmm3
-; SSE41-NEXT: paddb    %xmm1, %xmm1
-; SSE41-NEXT: movdqa   %xmm1, %xmm0
-; SSE41-NEXT: pblendvb %xmm3, %xmm2
-; SSE41-NEXT: movdqa   %xmm2, %xmm0
-; SSE41-NEXT: retq
-;
-; AVX:        vpsllw    $5, %xmm1, %xmm1
-; AVX-NEXT:   vpsrlw    $4, %xmm0, %xmm2
-; AVX-NEXT:   vpand     {{.*}}(%rip), %xmm2, %xmm2
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw    $2, %xmm0, %xmm2
-; AVX-NEXT:   vpand     {{.*}}(%rip), %xmm2, %xmm2
-; AVX-NEXT:   vpaddb    %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   vpsrlw    $1, %xmm0, %xmm2
-; AVX-NEXT:   vpand     {{.*}}(%rip), %xmm2, %xmm2
-; AVX-NEXT:   vpaddb    %xmm1, %xmm1, %xmm1
-; AVX-NEXT:   vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
-; AVX-NEXT:   retq
-  %lshr = lshr <16 x i8> %r, %a
-  %tmp2 = bitcast <16 x i8> %lshr to <2 x i64>
-  ret <2 x i64> %tmp2
-}
diff --git a/test/CodeGen/X86/vector-shift-ashr-128.ll b/test/CodeGen/X86/vector-shift-ashr-128.ll
new file mode 100644
index 00000000000..4fd2f8b51b8
--- /dev/null
+++ b/test/CodeGen/X86/vector-shift-ashr-128.ll
@@ -0,0 +1,1041 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE41
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
+
+;
+; Variable Shifts
+;
+
+define <2 x i64> @var_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE2-LABEL: var_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    movd       %xmm1, %rcx
+; SSE2-NEXT:    sarq       %cl, %rax
+; SSE2-NEXT:    movd       %rax, %xmm2
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm1[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rcx
+; SSE2-NEXT:    sarq       %cl, %rax
+; SSE2-NEXT:    movd       %rax, %xmm0
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm2 = xmm2[0],xmm0[0]
+; SSE2-NEXT:    movdqa     %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrq     $1, %xmm0, %rax
+; SSE41-NEXT:    pextrq     $1, %xmm1, %rcx
+; SSE41-NEXT:    sarq       %cl, %rax
+; SSE41-NEXT:    movd       %rax, %xmm2
+; SSE41-NEXT:    movd       %xmm0, %rax
+; SSE41-NEXT:    movd       %xmm1, %rcx
+; SSE41-NEXT:    sarq       %cl, %rax
+; SSE41-NEXT:    movd       %rax, %xmm0
+; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: var_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpextrq     $1, %xmm0, %rax
+; AVX-NEXT:    vpextrq     $1, %xmm1, %rcx
+; AVX-NEXT:    sarq        %cl, %rax
+; AVX-NEXT:    vmovq       %rax, %xmm2
+; AVX-NEXT:    vmovq       %xmm0, %rax
+; AVX-NEXT:    vmovq       %xmm1, %rcx
+; AVX-NEXT:    sarq        %cl, %rax
+; AVX-NEXT:    vmovq       %rax, %xmm0
+; AVX-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; AVX-NEXT:    retq
+  %shift = ashr <2 x i64> %a, %b
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @var_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: var_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm0[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm1[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %ecx
+; SSE2-NEXT:    sarl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm3 = xmm0[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm3, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm3 = xmm1[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm3, %ecx
+; SSE2-NEXT:    sarl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm3
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    movd      %xmm1, %ecx
+; SSE2-NEXT:    sarl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm1[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %ecx
+; SSE2-NEXT:    sarl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm0
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm0[0],xmm2[1],xmm0[1]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1]
+; SSE2-NEXT:    movdqa     %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrd $1, %xmm0, %eax
+; SSE41-NEXT:    pextrd $1, %xmm1, %ecx
+; SSE41-NEXT:    sarl   %cl, %eax
+; SSE41-NEXT:    movd   %xmm0, %edx
+; SSE41-NEXT:    movd   %xmm1, %ecx
+; SSE41-NEXT:    sarl   %cl, %edx
+; SSE41-NEXT:    movd   %edx, %xmm2
+; SSE41-NEXT:    pinsrd $1, %eax, %xmm2
+; SSE41-NEXT:    pextrd $2, %xmm0, %eax
+; SSE41-NEXT:    pextrd $2, %xmm1, %ecx
+; SSE41-NEXT:    sarl   %cl, %eax
+; SSE41-NEXT:    pinsrd $2, %eax, %xmm2
+; SSE41-NEXT:    pextrd $3, %xmm0, %eax
+; SSE41-NEXT:    pextrd $3, %xmm1, %ecx
+; SSE41-NEXT:    sarl   %cl, %eax
+; SSE41-NEXT:    pinsrd $3, %eax, %xmm2
+; SSE41-NEXT:    movdqa %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpextrd $1, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $1, %xmm1, %ecx
+; AVX1-NEXT:    sarl    %cl, %eax
+; AVX1-NEXT:    vmovd   %xmm0, %edx
+; AVX1-NEXT:    vmovd   %xmm1, %ecx
+; AVX1-NEXT:    sarl    %cl, %edx
+; AVX1-NEXT:    vmovd   %edx, %xmm2
+; AVX1-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
+; AVX1-NEXT:    vpextrd $2, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $2, %xmm1, %ecx
+; AVX1-NEXT:    sarl    %cl, %eax
+; AVX1-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
+; AVX1-NEXT:    vpextrd $3, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $3, %xmm1, %ecx
+; AVX1-NEXT:    sarl    %cl, %eax
+; AVX1-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsravd %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = ashr <4 x i32> %a, %b
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: var_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    psllw  $12, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psraw  $8, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psraw  $4, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psraw  $2, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    psraw  $15, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    pandn  %xmm0, %xmm2
+; SSE2-NEXT:    psraw  $1, %xmm0
+; SSE2-NEXT:    pand   %xmm1, %xmm0
+; SSE2-NEXT:    por    %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    psllw    $12, %xmm0
+; SSE41-NEXT:    psllw    $4, %xmm1
+; SSE41-NEXT:    por      %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm3
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm2, %xmm4
+; SSE41-NEXT:    psraw    $8, %xmm4
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm4, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psraw    $4, %xmm1
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psraw    $2, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psraw    $1, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v8i16:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsllw    $12, %xmm1, %xmm2
+; AVX1-NEXT:    vpsllw    $4, %xmm1, %xmm1
+; AVX1-NEXT:    vpor      %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm1, %xmm1, %xmm2
+; AVX1-NEXT:    vpsraw    $8, %xmm0, %xmm3
+; AVX1-NEXT:    vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $4, %xmm0, %xmm1
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v8i16:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm1 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
+; AVX2-NEXT:    vpmovsxwd %xmm0, %ymm0
+; AVX2-NEXT:    vpsravd   %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb   {{.*#+}} ymm0 = ymm0[0,1,4,5,8,9,12,13],zero,zero,zero,zero,zero,zero,zero,zero,ymm0[16,17,20,21,24,25,28,29],zero,zero,zero,zero,zero,zero,zero,zero
+; AVX2-NEXT:    vpermq    {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %shift = ashr <8 x i16> %a, %b
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: var_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm0[8],xmm2[9],xmm0[9],xmm2[10],xmm0[10],xmm2[11],xmm0[11],xmm2[12],xmm0[12],xmm2[13],xmm0[13],xmm2[14],xmm0[14],xmm2[15],xmm0[15]
+; SSE2-NEXT:    psllw     $5, %xmm1
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm1[8],xmm4[9],xmm1[9],xmm4[10],xmm1[10],xmm4[11],xmm1[11],xmm4[12],xmm1[12],xmm4[13],xmm1[13],xmm4[14],xmm1[14],xmm4[15],xmm1[15]
+; SSE2-NEXT:    pxor      %xmm3, %xmm3
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm2, %xmm6
+; SSE2-NEXT:    psraw     $4, %xmm2
+; SSE2-NEXT:    pand      %xmm5, %xmm2
+; SSE2-NEXT:    por       %xmm6, %xmm2
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm2, %xmm6
+; SSE2-NEXT:    psraw     $2, %xmm2
+; SSE2-NEXT:    pand      %xmm5, %xmm2
+; SSE2-NEXT:    por       %xmm6, %xmm2
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm4
+; SSE2-NEXT:    pandn     %xmm2, %xmm4
+; SSE2-NEXT:    psraw     $1, %xmm2
+; SSE2-NEXT:    pand      %xmm5, %xmm2
+; SSE2-NEXT:    por       %xmm4, %xmm2
+; SSE2-NEXT:    psrlw     $8, %xmm2
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm1, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $4, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm1, %xmm1
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm1, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $2, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm1, %xmm1
+; SSE2-NEXT:    pcmpgtw   %xmm1, %xmm3
+; SSE2-NEXT:    movdqa    %xmm3, %xmm1
+; SSE2-NEXT:    pandn     %xmm0, %xmm1
+; SSE2-NEXT:    psraw     $1, %xmm0
+; SSE2-NEXT:    pand      %xmm3, %xmm0
+; SSE2-NEXT:    por       %xmm1, %xmm0
+; SSE2-NEXT:    psrlw     $8, %xmm0
+; SSE2-NEXT:    packuswb  %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa    %xmm0, %xmm2
+; SSE41-NEXT:    psllw     $5, %xmm1
+; SSE41-NEXT:    punpckhbw {{.*#+}} xmm0 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; SSE41-NEXT:    punpckhbw {{.*#+}} xmm3 = xmm3[8],xmm2[8],xmm3[9],xmm2[9],xmm3[10],xmm2[10],xmm3[11],xmm2[11],xmm3[12],xmm2[12],xmm3[13],xmm2[13],xmm3[14],xmm2[14],xmm3[15],xmm2[15]
+; SSE41-NEXT:    movdqa    %xmm3, %xmm4
+; SSE41-NEXT:    psraw     $4, %xmm4
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm3
+; SSE41-NEXT:    movdqa    %xmm3, %xmm4
+; SSE41-NEXT:    psraw     $2, %xmm4
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm3
+; SSE41-NEXT:    movdqa    %xmm3, %xmm4
+; SSE41-NEXT:    psraw     $1, %xmm4
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm3
+; SSE41-NEXT:    psrlw     $8, %xmm3
+; SSE41-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]
+; SSE41-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3],xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
+; SSE41-NEXT:    movdqa    %xmm1, %xmm2
+; SSE41-NEXT:    psraw     $4, %xmm2
+; SSE41-NEXT:    pblendvb  %xmm2, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm2
+; SSE41-NEXT:    psraw     $2, %xmm2
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm2, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm2
+; SSE41-NEXT:    psraw     $1, %xmm2
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm2, %xmm1
+; SSE41-NEXT:    psrlw     $8, %xmm1
+; SSE41-NEXT:    packuswb  %xmm3, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: var_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllw     $5, %xmm1, %xmm1
+; AVX-NEXT:    vpunpckhbw {{.*#+}} xmm2 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; AVX-NEXT:    vpunpckhbw {{.*#+}} xmm3 = xmm0[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; AVX-NEXT:    vpsraw     $4, %xmm3, %xmm4
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX-NEXT:    vpsraw     $2, %xmm3, %xmm4
+; AVX-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX-NEXT:    vpsraw     $1, %xmm3, %xmm4
+; AVX-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm2
+; AVX-NEXT:    vpsrlw     $8, %xmm2, %xmm2
+; AVX-NEXT:    vpunpcklbw {{.*#+}} xmm1 = 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]
+; AVX-NEXT:    vpunpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX-NEXT:    vpsraw     $4, %xmm0, %xmm3
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsraw     $2, %xmm0, %xmm3
+; AVX-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsraw     $1, %xmm0, %xmm3
+; AVX-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw     $8, %xmm0, %xmm0
+; AVX-NEXT:    vpackuswb  %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = ashr <16 x i8> %a, %b
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Variable Shifts
+;
+
+define <2 x i64> @splatvar_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE2-LABEL: splatvar_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm2 = xmm1[0,1,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    movd       %xmm2, %rcx
+; SSE2-NEXT:    sarq       %cl, %rax
+; SSE2-NEXT:    movd       %rax, %xmm1
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm2[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rcx
+; SSE2-NEXT:    sarq       %cl, %rax
+; SSE2-NEXT:    movd       %rax, %xmm0
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
+; SSE2-NEXT:    movdqa     %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pshufd     {{.*#+}} xmm1 = xmm1[0,1,0,1]
+; SSE41-NEXT:    pextrq     $1, %xmm0, %rax
+; SSE41-NEXT:    pextrq     $1, %xmm1, %rcx
+; SSE41-NEXT:    sarq       %cl, %rax
+; SSE41-NEXT:    movd       %rax, %xmm2
+; SSE41-NEXT:    movd       %xmm0, %rax
+; SSE41-NEXT:    movd       %xmm1, %rcx
+; SSE41-NEXT:    sarq       %cl, %rax
+; SSE41-NEXT:    movd       %rax, %xmm0
+; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: splatvar_shift_v2i64:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpshufd     {{.*#+}} xmm1 = xmm1[0,1,0,1]
+; AVX1-NEXT:    vpextrq     $1, %xmm0, %rax
+; AVX1-NEXT:    vpextrq     $1, %xmm1, %rcx
+; AVX1-NEXT:    sarq        %cl, %rax
+; AVX1-NEXT:    vmovq       %rax, %xmm2
+; AVX1-NEXT:    vmovq       %xmm0, %rax
+; AVX1-NEXT:    vmovq       %xmm1, %rcx
+; AVX1-NEXT:    sarq        %cl, %rax
+; AVX1-NEXT:    vmovq       %rax, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: splatvar_shift_v2i64:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpbroadcastq %xmm1, %xmm1
+; AVX2-NEXT:    vpextrq      $1, %xmm0, %rax
+; AVX2-NEXT:    vpextrq      $1, %xmm1, %rcx
+; AVX2-NEXT:    sarq         %cl, %rax
+; AVX2-NEXT:    vmovq        %rax, %xmm2
+; AVX2-NEXT:    vmovq        %xmm0, %rax
+; AVX2-NEXT:    vmovq        %xmm1, %rcx
+; AVX2-NEXT:    sarq         %cl, %rax
+; AVX2-NEXT:    vmovq        %rax, %xmm0
+; AVX2-NEXT:    vpunpcklqdq  {{.*#+}} xmm0 = xmm0[0],xmm2[0]
+; AVX2-NEXT:    retq
+  %splat = shufflevector <2 x i64> %b, <2 x i64> undef, <2 x i32> zeroinitializer
+  %shift = ashr <2 x i64> %a, %splat
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatvar_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: splatvar_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    xorps %xmm2, %xmm2
+; SSE2-NEXT:    movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
+; SSE2-NEXT:    psrad %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; SSE41-NEXT:    psrad %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; AVX-NEXT:    vpsrad %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <4 x i32> %b, <4 x i32> undef, <4 x i32> zeroinitializer
+  %shift = ashr <4 x i32> %a, %splat
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatvar_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: splatvar_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd   %xmm1, %eax
+; SSE2-NEXT:    movzwl %ax, %eax
+; SSE2-NEXT:    movd   %eax, %xmm1
+; SSE2-NEXT:    psraw  %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; SSE41-NEXT:    psraw %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; AVX-NEXT:    vpsraw %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <8 x i16> %b, <8 x i16> undef, <8 x i32> zeroinitializer
+  %shift = ashr <8 x i16> %a, %splat
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: splatvar_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm1[0,1,0,3]
+; SSE2-NEXT:    pshuflw   {{.*#+}} xmm1 = xmm1[0,0,0,0,4,5,6,7]
+; SSE2-NEXT:    pshufhw   {{.*#+}} xmm3 = xmm1[0,1,2,3,4,4,4,4]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm0[8],xmm1[9],xmm0[9],xmm1[10],xmm0[10],xmm1[11],xmm0[11],xmm1[12],xmm0[12],xmm1[13],xmm0[13],xmm1[14],xmm0[14],xmm1[15],xmm0[15]
+; SSE2-NEXT:    psllw     $5, %xmm3
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm3[8],xmm4[9],xmm3[9],xmm4[10],xmm3[10],xmm4[11],xmm3[11],xmm4[12],xmm3[12],xmm4[13],xmm3[13],xmm4[14],xmm3[14],xmm4[15],xmm3[15]
+; SSE2-NEXT:    pxor      %xmm2, %xmm2
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm1, %xmm6
+; SSE2-NEXT:    psraw     $4, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm6, %xmm1
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm1, %xmm6
+; SSE2-NEXT:    psraw     $2, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm6, %xmm1
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm4
+; SSE2-NEXT:    pandn     %xmm1, %xmm4
+; SSE2-NEXT:    psraw     $1, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm4, %xmm1
+; SSE2-NEXT:    psrlw     $8, %xmm1
+; SSE2-NEXT:    punpcklbw {{.*#+}}  xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}}  xmm3 = xmm3[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $4, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm3, %xmm3
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $2, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm2
+; SSE2-NEXT:    movdqa    %xmm2, %xmm3
+; SSE2-NEXT:    pandn     %xmm0, %xmm3
+; SSE2-NEXT:    psraw     $1, %xmm0
+; SSE2-NEXT:    pand      %xmm2, %xmm0
+; SSE2-NEXT:    por       %xmm3, %xmm0
+; SSE2-NEXT:    psrlw     $8, %xmm0
+; SSE2-NEXT:    packuswb  %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa      %xmm0, %xmm2
+; SSE41-NEXT:    pxor        %xmm0, %xmm0
+; SSE41-NEXT:    pshufb      %xmm0, %xmm1
+; SSE41-NEXT:    psllw       $5, %xmm1
+; SSE41-NEXT:    punpckhbw   {{.*#+}} xmm0 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; SSE41-NEXT:    punpckhbw   {{.*#+}} xmm3 = xmm3[8],xmm2[8],xmm3[9],xmm2[9],xmm3[10],xmm2[10],xmm3[11],xmm2[11],xmm3[12],xmm2[12],xmm3[13],xmm2[13],xmm3[14],xmm2[14],xmm3[15],xmm2[15]
+; SSE41-NEXT:    movdqa      %xmm3, %xmm4
+; SSE41-NEXT:    psraw       $4, %xmm4
+; SSE41-NEXT:    pblendvb    %xmm4, %xmm3
+; SSE41-NEXT:    movdqa      %xmm3, %xmm4
+; SSE41-NEXT:    psraw       $2, %xmm4
+; SSE41-NEXT:    paddw       %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb    %xmm4, %xmm3
+; SSE41-NEXT:    movdqa      %xmm3, %xmm4
+; SSE41-NEXT:    psraw       $1, %xmm4
+; SSE41-NEXT:    paddw       %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb    %xmm4, %xmm3
+; SSE41-NEXT:    psrlw       $8, %xmm3
+; SSE41-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]
+; SSE41-NEXT:    punpcklbw   {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1],xmm1[2],xmm2[2],xmm1[3],xmm2[3],xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
+; SSE41-NEXT:    movdqa      %xmm1, %xmm2
+; SSE41-NEXT:    psraw       $4, %xmm2
+; SSE41-NEXT:    pblendvb    %xmm2, %xmm1
+; SSE41-NEXT:    movdqa      %xmm1, %xmm2
+; SSE41-NEXT:    psraw       $2, %xmm2
+; SSE41-NEXT:    paddw       %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb    %xmm2, %xmm1
+; SSE41-NEXT:    movdqa      %xmm1, %xmm2
+; SSE41-NEXT:    psraw       $1, %xmm2
+; SSE41-NEXT:    paddw       %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb    %xmm2, %xmm1
+; SSE41-NEXT:    psrlw       $8, %xmm1
+; SSE41-NEXT:    packuswb    %xmm3, %xmm1
+; SSE41-NEXT:    movdqa      %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: splatvar_shift_v16i8:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpxor      %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpshufb    %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpsllw     $5, %xmm1, %xmm1
+; AVX1-NEXT:    vpunpckhbw {{.*#+}} xmm2 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; AVX1-NEXT:    vpunpckhbw {{.*#+}} xmm3 = xmm0[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; AVX1-NEXT:    vpsraw     $4, %xmm3, %xmm4
+; AVX1-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX1-NEXT:    vpsraw     $2, %xmm3, %xmm4
+; AVX1-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX1-NEXT:    vpsraw     $1, %xmm3, %xmm4
+; AVX1-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm2
+; AVX1-NEXT:    vpsrlw     $8, %xmm2, %xmm2
+; AVX1-NEXT:    vpunpcklbw {{.*#+}} xmm1 = 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]
+; AVX1-NEXT:    vpunpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX1-NEXT:    vpsraw     $4, %xmm0, %xmm3
+; AVX1-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw     $2, %xmm0, %xmm3
+; AVX1-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw     $1, %xmm0, %xmm3
+; AVX1-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw     $8, %xmm0, %xmm0
+; AVX1-NEXT:    vpackuswb  %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: splatvar_shift_v16i8:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpbroadcastb %xmm1, %xmm1
+; AVX2-NEXT:    vpsllw       $5, %xmm1, %xmm1
+; AVX2-NEXT:    vpunpckhbw   {{.*#+}} xmm2 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; AVX2-NEXT:    vpunpckhbw   {{.*#+}} xmm3 = xmm0[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; AVX2-NEXT:    vpsraw       $4, %xmm3, %xmm4
+; AVX2-NEXT:    vpblendvb    %xmm2, %xmm4, %xmm3, %xmm3
+; AVX2-NEXT:    vpsraw       $2, %xmm3, %xmm4
+; AVX2-NEXT:    vpaddw       %xmm2, %xmm2, %xmm2
+; AVX2-NEXT:    vpblendvb    %xmm2, %xmm4, %xmm3, %xmm3
+; AVX2-NEXT:    vpsraw       $1, %xmm3, %xmm4
+; AVX2-NEXT:    vpaddw       %xmm2, %xmm2, %xmm2
+; AVX2-NEXT:    vpblendvb    %xmm2, %xmm4, %xmm3, %xmm2
+; AVX2-NEXT:    vpsrlw       $8, %xmm2, %xmm2
+; AVX2-NEXT:    vpunpcklbw   {{.*#+}} xmm1 = 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]
+; AVX2-NEXT:    vpunpcklbw   {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX2-NEXT:    vpsraw       $4, %xmm0, %xmm3
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpsraw       $2, %xmm0, %xmm3
+; AVX2-NEXT:    vpaddw       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpsraw       $1, %xmm0, %xmm3
+; AVX2-NEXT:    vpaddw       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpsrlw       $8, %xmm0, %xmm0
+; AVX2-NEXT:    vpackuswb    %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %splat = shufflevector <16 x i8> %b, <16 x i8> undef, <16 x i32> zeroinitializer
+  %shift = ashr <16 x i8> %a, %splat
+  ret <16 x i8> %shift
+}
+
+;
+; Constant Shifts
+;
+
+define <2 x i64> @constant_shift_v2i64(<2 x i64> %a) {
+; SSE2-LABEL: constant_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    sarq       %rax
+; SSE2-NEXT:    movd       %rax, %xmm1
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    sarq       $7, %rax
+; SSE2-NEXT:    movd       %rax, %xmm0
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
+; SSE2-NEXT:    movdqa     %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrq     $1, %xmm0, %rax
+; SSE41-NEXT:    sarq       $7, %rax
+; SSE41-NEXT:    movd       %rax, %xmm1
+; SSE41-NEXT:    movd       %xmm0, %rax
+; SSE41-NEXT:    sarq       %rax
+; SSE41-NEXT:    movd       %rax, %xmm0
+; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: constant_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpextrq     $1, %xmm0, %rax
+; AVX-NEXT:    sarq        $7, %rax
+; AVX-NEXT:    vmovq       %rax, %xmm1
+; AVX-NEXT:    vmovq       %xmm0, %rax
+; AVX-NEXT:    sarq        %rax
+; AVX-NEXT:    vmovq       %rax, %xmm0
+; AVX-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX-NEXT:    retq
+  %shift = ashr <2 x i64> %a, <i64 1, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @constant_shift_v4i32(<4 x i32> %a) {
+; SSE2-LABEL: constant_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm0[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm1, %eax
+; SSE2-NEXT:    sarl      $7, %eax
+; SSE2-NEXT:    movd      %eax, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm0[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %eax
+; SSE2-NEXT:    sarl      $5, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    sarl      $4, %eax
+; SSE2-NEXT:    movd      %eax, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    sarl      $6, %eax
+; SSE2-NEXT:    movd      %eax, %xmm0
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; SSE2-NEXT:    movdqa    %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrd $1, %xmm0, %eax
+; SSE41-NEXT:    sarl   $5, %eax
+; SSE41-NEXT:    movd   %xmm0, %ecx
+; SSE41-NEXT:    sarl   $4, %ecx
+; SSE41-NEXT:    movd   %ecx, %xmm1
+; SSE41-NEXT:    pinsrd $1, %eax, %xmm1
+; SSE41-NEXT:    pextrd $2, %xmm0, %eax
+; SSE41-NEXT:    sarl   $6, %eax
+; SSE41-NEXT:    pinsrd $2, %eax, %xmm1
+; SSE41-NEXT:    pextrd $3, %xmm0, %eax
+; SSE41-NEXT:    sarl   $7, %eax
+; SSE41-NEXT:    pinsrd $3, %eax, %xmm1
+; SSE41-NEXT:    movdqa %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpextrd $1, %xmm0, %eax
+; AVX1-NEXT:    sarl    $5, %eax
+; AVX1-NEXT:    vmovd   %xmm0, %ecx
+; AVX1-NEXT:    sarl    $4, %ecx
+; AVX1-NEXT:    vmovd   %ecx, %xmm1
+; AVX1-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
+; AVX1-NEXT:    vpextrd $2, %xmm0, %eax
+; AVX1-NEXT:    sarl    $6, %eax
+; AVX1-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
+; AVX1-NEXT:    vpextrd $3, %xmm0, %eax
+; AVX1-NEXT:    sarl    $7, %eax
+; AVX1-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsravd {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = ashr <4 x i32> %a, <i32 4, i32 5, i32 6, i32 7>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @constant_shift_v8i16(<8 x i16> %a) {
+; SSE2-LABEL: constant_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa    %xmm0, %xmm1
+; SSE2-NEXT:    psraw     $4, %xmm1
+; SSE2-NEXT:    movsd     {{.*#+}} xmm1 = xmm0[0],xmm1[1]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm1[0,2,2,3]
+; SSE2-NEXT:    psraw     $2, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}}  xmm0 = xmm1[1,3,2,3]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm0[0],xmm2[1],xmm0[1]
+; SSE2-NEXT:    movdqa    {{.*#+}} xmm0 = [65535,0,65535,0,65535,0,65535,0]
+; SSE2-NEXT:    movdqa    %xmm2, %xmm1
+; SSE2-NEXT:    pand      %xmm0, %xmm1
+; SSE2-NEXT:    psraw     $1, %xmm2
+; SSE2-NEXT:    pandn     %xmm2, %xmm0
+; SSE2-NEXT:    por       %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psraw    $8, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,4112,8224,12336,16448,20560,24672,28784]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psraw    $4, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,8224,16448,24672,32896,41120,49344,57568]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psraw    $2, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,16448,32896,49344,256,16704,33152,49600]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psraw    $1, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,32896,256,33152,512,33408,768,33664]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v8i16:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsraw    $8, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,4112,8224,12336,16448,20560,24672,28784]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $4, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,8224,16448,24672,32896,41120,49344,57568]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,16448,32896,49344,256,16704,33152,49600]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsraw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,32896,256,33152,512,33408,768,33664]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v8i16:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpmovsxwd %xmm0, %ymm0
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm1 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero,mem[4],zero,mem[5],zero,mem[6],zero,mem[7],zero
+; AVX2-NEXT:    vpsravd   %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb   {{.*#+}} ymm0 = ymm0[0,1,4,5,8,9,12,13],zero,zero,zero,zero,zero,zero,zero,zero,ymm0[16,17,20,21,24,25,28,29],zero,zero,zero,zero,zero,zero,zero,zero
+; AVX2-NEXT:    vpermq    {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %shift = ashr <8 x i16> %a, <i16 0, i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) {
+; SSE2-LABEL: constant_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm0[8],xmm1[9],xmm0[9],xmm1[10],xmm0[10],xmm1[11],xmm0[11],xmm1[12],xmm0[12],xmm1[13],xmm0[13],xmm1[14],xmm0[14],xmm1[15],xmm0[15]
+; SSE2-NEXT:    movdqa    {{.*#+}} xmm3 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE2-NEXT:    psllw     $5, %xmm3
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm3[8],xmm4[9],xmm3[9],xmm4[10],xmm3[10],xmm4[11],xmm3[11],xmm4[12],xmm3[12],xmm4[13],xmm3[13],xmm4[14],xmm3[14],xmm4[15],xmm3[15]
+; SSE2-NEXT:    pxor      %xmm2, %xmm2
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm1, %xmm6
+; SSE2-NEXT:    psraw     $4, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm6, %xmm1
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm6
+; SSE2-NEXT:    pandn     %xmm1, %xmm6
+; SSE2-NEXT:    psraw     $2, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm6, %xmm1
+; SSE2-NEXT:    paddw     %xmm4, %xmm4
+; SSE2-NEXT:    pxor      %xmm5, %xmm5
+; SSE2-NEXT:    pcmpgtw   %xmm4, %xmm5
+; SSE2-NEXT:    movdqa    %xmm5, %xmm4
+; SSE2-NEXT:    pandn     %xmm1, %xmm4
+; SSE2-NEXT:    psraw     $1, %xmm1
+; SSE2-NEXT:    pand      %xmm5, %xmm1
+; SSE2-NEXT:    por       %xmm4, %xmm1
+; SSE2-NEXT:    psrlw     $8, %xmm1
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm3 = xmm3[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $4, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm3, %xmm3
+; SSE2-NEXT:    pxor      %xmm4, %xmm4
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm4
+; SSE2-NEXT:    movdqa    %xmm4, %xmm5
+; SSE2-NEXT:    pandn     %xmm0, %xmm5
+; SSE2-NEXT:    psraw     $2, %xmm0
+; SSE2-NEXT:    pand      %xmm4, %xmm0
+; SSE2-NEXT:    por       %xmm5, %xmm0
+; SSE2-NEXT:    paddw     %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtw   %xmm3, %xmm2
+; SSE2-NEXT:    movdqa    %xmm2, %xmm3
+; SSE2-NEXT:    pandn     %xmm0, %xmm3
+; SSE2-NEXT:    psraw     $1, %xmm0
+; SSE2-NEXT:    pand      %xmm2, %xmm0
+; SSE2-NEXT:    por       %xmm3, %xmm0
+; SSE2-NEXT:    psrlw     $8, %xmm0
+; SSE2-NEXT:    packuswb  %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa    %xmm0, %xmm1
+; SSE41-NEXT:    movdqa    {{.*#+}} xmm3 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE41-NEXT:    psllw     $5, %xmm3
+; SSE41-NEXT:    punpckhbw {{.*#+}} xmm0 = xmm0[8],xmm3[8],xmm0[9],xmm3[9],xmm0[10],xmm3[10],xmm0[11],xmm3[11],xmm0[12],xmm3[12],xmm0[13],xmm3[13],xmm0[14],xmm3[14],xmm0[15],xmm3[15]
+; SSE41-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]
+; SSE41-NEXT:    movdqa    %xmm2, %xmm4
+; SSE41-NEXT:    psraw     $4, %xmm4
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm2
+; SSE41-NEXT:    movdqa    %xmm2, %xmm4
+; SSE41-NEXT:    psraw     $2, %xmm4
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm2
+; SSE41-NEXT:    movdqa    %xmm2, %xmm4
+; SSE41-NEXT:    psraw     $1, %xmm4
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm4, %xmm2
+; SSE41-NEXT:    psrlw     $8, %xmm2
+; SSE41-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm3[0],xmm0[1],xmm3[1],xmm0[2],xmm3[2],xmm0[3],xmm3[3],xmm0[4],xmm3[4],xmm0[5],xmm3[5],xmm0[6],xmm3[6],xmm0[7],xmm3[7]
+; SSE41-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE41-NEXT:    movdqa    %xmm1, %xmm3
+; SSE41-NEXT:    psraw     $4, %xmm3
+; SSE41-NEXT:    pblendvb  %xmm3, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm3
+; SSE41-NEXT:    psraw     $2, %xmm3
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm3, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm3
+; SSE41-NEXT:    psraw     $1, %xmm3
+; SSE41-NEXT:    paddw     %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb  %xmm3, %xmm1
+; SSE41-NEXT:    psrlw     $8, %xmm1
+; SSE41-NEXT:    packuswb  %xmm2, %xmm1
+; SSE41-NEXT:    movdqa    %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: constant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa    {{.*#+}} xmm1 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; AVX-NEXT:    vpsllw     $5, %xmm1, %xmm1
+; AVX-NEXT:    vpunpckhbw {{.*#+}} xmm2 = xmm0[8],xmm1[8],xmm0[9],xmm1[9],xmm0[10],xmm1[10],xmm0[11],xmm1[11],xmm0[12],xmm1[12],xmm0[13],xmm1[13],xmm0[14],xmm1[14],xmm0[15],xmm1[15]
+; AVX-NEXT:    vpunpckhbw {{.*#+}} xmm3 = xmm0[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; AVX-NEXT:    vpsraw     $4, %xmm3, %xmm4
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX-NEXT:    vpsraw     $2, %xmm3, %xmm4
+; AVX-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm3
+; AVX-NEXT:    vpsraw     $1, %xmm3, %xmm4
+; AVX-NEXT:    vpaddw     %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb  %xmm2, %xmm4, %xmm3, %xmm2
+; AVX-NEXT:    vpsrlw     $8, %xmm2, %xmm2
+; AVX-NEXT:    vpunpcklbw {{.*#+}} xmm1 = 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]
+; AVX-NEXT:    vpunpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; AVX-NEXT:    vpsraw     $4, %xmm0, %xmm3
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsraw     $2, %xmm0, %xmm3
+; AVX-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsraw     $1, %xmm0, %xmm3
+; AVX-NEXT:    vpaddw     %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb  %xmm1, %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw     $8, %xmm0, %xmm0
+; AVX-NEXT:    vpackuswb  %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = ashr <16 x i8> %a, <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 7, i8 6, i8 5, i8 4, i8 3, i8 2, i8 1, i8 0>
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Constant Shifts
+;
+
+define <2 x i64> @splatconstant_shift_v2i64(<2 x i64> %a) {
+; SSE2-LABEL: splatconstant_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    sarq       $7, %rax
+; SSE2-NEXT:    movd       %rax, %xmm1
+; SSE2-NEXT:    pshufd     {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd       %xmm0, %rax
+; SSE2-NEXT:    sarq       $7, %rax
+; SSE2-NEXT:    movd       %rax, %xmm0
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
+; SSE2-NEXT:    movdqa     %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatconstant_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrq     $1, %xmm0, %rax
+; SSE41-NEXT:    sarq       $7, %rax
+; SSE41-NEXT:    movd       %rax, %xmm1
+; SSE41-NEXT:    movd       %xmm0, %rax
+; SSE41-NEXT:    sarq       $7, %rax
+; SSE41-NEXT:    movd       %rax, %xmm0
+; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpextrq     $1, %xmm0, %rax
+; AVX-NEXT:    sarq        $7, %rax
+; AVX-NEXT:    vmovq       %rax, %xmm1
+; AVX-NEXT:    vmovq       %xmm0, %rax
+; AVX-NEXT:    sarq        $7, %rax
+; AVX-NEXT:    vmovq       %rax, %xmm0
+; AVX-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX-NEXT:    retq
+  %shift = ashr <2 x i64> %a, <i64 7, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatconstant_shift_v4i32(<4 x i32> %a) {
+; SSE-LABEL: splatconstant_shift_v4i32:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrad $5, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrad $5, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = ashr <4 x i32> %a, <i32 5, i32 5, i32 5, i32 5>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatconstant_shift_v8i16(<8 x i16> %a) {
+; SSE-LABEL: splatconstant_shift_v8i16:
+; SSE:       # BB#0:
+; SSE-NEXT:    psraw $3, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsraw $3, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = ashr <8 x i16> %a, <i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatconstant_shift_v16i8(<16 x i8> %a) {
+; SSE-LABEL: splatconstant_shift_v16i8:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrlw  $3, %xmm0
+; SSE-NEXT:    pand   {{.*}}(%rip), %xmm0
+; SSE-NEXT:    movdqa {{.*#+}} xmm1 = [16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16]
+; SSE-NEXT:    pxor   %xmm1, %xmm0
+; SSE-NEXT:    psubb  %xmm1, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrlw  $3, %xmm0, %xmm0
+; AVX-NEXT:    vpand   {{.*}}(%rip), %xmm0, %xmm0
+; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16]
+; AVX-NEXT:    vpxor   %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpsubb  %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = ashr <16 x i8> %a, <i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3>
+  ret <16 x i8> %shift
+}
diff --git a/test/CodeGen/X86/vector-shift-lshr-128.ll b/test/CodeGen/X86/vector-shift-lshr-128.ll
new file mode 100644
index 00000000000..f5a7e28383f
--- /dev/null
+++ b/test/CodeGen/X86/vector-shift-lshr-128.ll
@@ -0,0 +1,778 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE41
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
+
+;
+; Variable Shifts
+;
+
+define <2 x i64> @var_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE2-LABEL: var_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm1[2,3,0,1]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    psrlq  %xmm3, %xmm2
+; SSE2-NEXT:    psrlq  %xmm1, %xmm0
+; SSE2-NEXT:    movsd  {{.*#+}} xmm2 = xmm0[0],xmm2[1]
+; SSE2-NEXT:    movapd %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa  %xmm0, %xmm2
+; SSE41-NEXT:    psrlq   %xmm1, %xmm2
+; SSE41-NEXT:    pshufd  {{.*#+}} xmm1 = xmm1[2,3,0,1]
+; SSE41-NEXT:    psrlq   %xmm1, %xmm0
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm2[0,1,2,3],xmm0[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v2i64:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsrlq   %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufd  {{.*#+}} xmm1 = xmm1[2,3,0,1]
+; AVX1-NEXT:    vpsrlq   %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm2[0,1,2,3],xmm0[4,5,6,7]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v2i64:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsrlvq %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = lshr <2 x i64> %a, %b
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @var_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: var_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm0[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm1[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %ecx
+; SSE2-NEXT:    shrl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm3 = xmm0[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm3, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm3 = xmm1[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm3, %ecx
+; SSE2-NEXT:    shrl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm3
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    movd      %xmm1, %ecx
+; SSE2-NEXT:    shrl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm1[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %ecx
+; SSE2-NEXT:    shrl      %cl, %eax
+; SSE2-NEXT:    movd      %eax, %xmm0
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm0[0],xmm2[1],xmm0[1]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1]
+; SSE2-NEXT:    movdqa     %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrd $1, %xmm0, %eax
+; SSE41-NEXT:    pextrd $1, %xmm1, %ecx
+; SSE41-NEXT:    shrl   %cl, %eax
+; SSE41-NEXT:    movd   %xmm0, %edx
+; SSE41-NEXT:    movd   %xmm1, %ecx
+; SSE41-NEXT:    shrl   %cl, %edx
+; SSE41-NEXT:    movd   %edx, %xmm2
+; SSE41-NEXT:    pinsrd $1, %eax, %xmm2
+; SSE41-NEXT:    pextrd $2, %xmm0, %eax
+; SSE41-NEXT:    pextrd $2, %xmm1, %ecx
+; SSE41-NEXT:    shrl   %cl, %eax
+; SSE41-NEXT:    pinsrd $2, %eax, %xmm2
+; SSE41-NEXT:    pextrd $3, %xmm0, %eax
+; SSE41-NEXT:    pextrd $3, %xmm1, %ecx
+; SSE41-NEXT:    shrl   %cl, %eax
+; SSE41-NEXT:    pinsrd $3, %eax, %xmm2
+; SSE41-NEXT:    movdqa %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpextrd $1, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $1, %xmm1, %ecx
+; AVX1-NEXT:    shrl    %cl, %eax
+; AVX1-NEXT:    vmovd   %xmm0, %edx
+; AVX1-NEXT:    vmovd   %xmm1, %ecx
+; AVX1-NEXT:    shrl    %cl, %edx
+; AVX1-NEXT:    vmovd   %edx, %xmm2
+; AVX1-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
+; AVX1-NEXT:    vpextrd $2, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $2, %xmm1, %ecx
+; AVX1-NEXT:    shrl    %cl, %eax
+; AVX1-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
+; AVX1-NEXT:    vpextrd $3, %xmm0, %eax
+; AVX1-NEXT:    vpextrd $3, %xmm1, %ecx
+; AVX1-NEXT:    shrl    %cl, %eax
+; AVX1-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsrlvd %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = lshr <4 x i32> %a, %b
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: var_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    psllw  $12, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psrlw  $8, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psrlw  $4, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psrlw  $2, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    psraw  $15, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    pandn  %xmm0, %xmm2
+; SSE2-NEXT:    psrlw  $1, %xmm0
+; SSE2-NEXT:    pand   %xmm1, %xmm0
+; SSE2-NEXT:    por    %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    psllw    $12, %xmm0
+; SSE41-NEXT:    psllw    $4, %xmm1
+; SSE41-NEXT:    por      %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm3
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm2, %xmm4
+; SSE41-NEXT:    psrlw    $8, %xmm4
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm4, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psrlw    $4, %xmm1
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psrlw    $2, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psrlw    $1, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v8i16:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsllw    $12, %xmm1, %xmm2
+; AVX1-NEXT:    vpsllw    $4, %xmm1, %xmm1
+; AVX1-NEXT:    vpor      %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm1, %xmm1, %xmm2
+; AVX1-NEXT:    vpsrlw    $8, %xmm0, %xmm3
+; AVX1-NEXT:    vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $4, %xmm0, %xmm1
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v8i16:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm1 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
+; AVX2-NEXT:    vpsrlvd   %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb   {{.*#+}} ymm0 = ymm0[0,1,4,5,8,9,12,13],zero,zero,zero,zero,zero,zero,zero,zero,ymm0[16,17,20,21,24,25,28,29],zero,zero,zero,zero,zero,zero,zero,zero
+; AVX2-NEXT:    vpermq    {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %shift = lshr <8 x i16> %a, %b
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: var_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:  psllw   $5, %xmm1
+; SSE2-NEXT:  pxor    %xmm2, %xmm2
+; SSE2-NEXT:  pxor    %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
+; SSE2-NEXT:  movdqa  %xmm3, %xmm4
+; SSE2-NEXT:  pandn   %xmm0, %xmm4
+; SSE2-NEXT:  psrlw   $4, %xmm0
+; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand    %xmm3, %xmm0
+; SSE2-NEXT:  por     %xmm4, %xmm0
+; SSE2-NEXT:  paddb   %xmm1, %xmm1
+; SSE2-NEXT:  pxor    %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
+; SSE2-NEXT:  movdqa  %xmm3, %xmm4
+; SSE2-NEXT:  pandn   %xmm0, %xmm4
+; SSE2-NEXT:  psrlw   $2, %xmm0
+; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand    %xmm3, %xmm0
+; SSE2-NEXT:  por     %xmm4, %xmm0
+; SSE2-NEXT:  paddb   %xmm1, %xmm1
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm2
+; SSE2-NEXT:  movdqa  %xmm2, %xmm1
+; SSE2-NEXT:  pandn   %xmm0, %xmm1
+; SSE2-NEXT:  psrlw   $1, %xmm0
+; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand    %xmm2, %xmm0
+; SSE2-NEXT:  por     %xmm1, %xmm0
+; SSE2-NEXT:  retq
+;
+; SSE41-LABEL: var_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    psllw    $5, %xmm1
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    psrlw    $4, %xmm3
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm3
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    psrlw    $2, %xmm3
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm3
+; SSE41-NEXT:    paddb    %xmm1, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    psrlw    $1, %xmm3
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm3
+; SSE41-NEXT:    paddb    %xmm1, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: var_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX-NEXT:    vpsrlw    $4, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw    $2, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw    $1, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <16 x i8> %a, %b
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Variable Shifts
+;
+
+define <2 x i64> @splatvar_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE-LABEL: splatvar_shift_v2i64:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrlq %xmm1, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrlq %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <2 x i64> %b, <2 x i64> undef, <2 x i32> zeroinitializer
+  %shift = lshr <2 x i64> %a, %splat
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatvar_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: splatvar_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    xorps %xmm2, %xmm2
+; SSE2-NEXT:    movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
+; SSE2-NEXT:    psrld %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; SSE41-NEXT:    psrld %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; AVX-NEXT:    vpsrld %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <4 x i32> %b, <4 x i32> undef, <4 x i32> zeroinitializer
+  %shift = lshr <4 x i32> %a, %splat
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatvar_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: splatvar_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd   %xmm1, %eax
+; SSE2-NEXT:    movzwl %ax, %eax
+; SSE2-NEXT:    movd   %eax, %xmm1
+; SSE2-NEXT:    psrlw  %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; SSE41-NEXT:    psrlw %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; AVX-NEXT:    vpsrlw %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <8 x i16> %b, <8 x i16> undef, <8 x i32> zeroinitializer
+  %shift = lshr <8 x i16> %a, %splat
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: splatvar_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:  punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:  pshufd    {{.*#+}} xmm1 = xmm1[0,1,0,3]
+; SSE2-NEXT:  pshuflw   {{.*#+}} xmm1 = xmm1[0,0,0,0,4,5,6,7]
+; SSE2-NEXT:  pshufhw   {{.*#+}} xmm2 = xmm1[0,1,2,3,4,4,4,4]
+; SSE2-NEXT:  psllw     $5, %xmm2
+; SSE2-NEXT:  pxor      %xmm1, %xmm1
+; SSE2-NEXT:  pxor      %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm3
+; SSE2-NEXT:  movdqa    %xmm3, %xmm4
+; SSE2-NEXT:  pandn     %xmm0, %xmm4
+; SSE2-NEXT:  psrlw     $4, %xmm0
+; SSE2-NEXT:  pand      {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand      %xmm3, %xmm0
+; SSE2-NEXT:  por       %xmm4, %xmm0
+; SSE2-NEXT:  paddb     %xmm2, %xmm2
+; SSE2-NEXT:  pxor      %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm3
+; SSE2-NEXT:  movdqa    %xmm3, %xmm4
+; SSE2-NEXT:  pandn     %xmm0, %xmm4
+; SSE2-NEXT:  psrlw     $2, %xmm0
+; SSE2-NEXT:  pand      {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand      %xmm3, %xmm0
+; SSE2-NEXT:  por       %xmm4, %xmm0
+; SSE2-NEXT:  paddb     %xmm2, %xmm2
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm1
+; SSE2-NEXT:  movdqa    %xmm1, %xmm2
+; SSE2-NEXT:  pandn     %xmm0, %xmm2
+; SSE2-NEXT:  psrlw     $1, %xmm0
+; SSE2-NEXT:  pand      {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand      %xmm1, %xmm0
+; SSE2-NEXT:  por       %xmm2, %xmm0
+; SSE2-NEXT:  retq
+;
+; SSE41-LABEL: splatvar_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    pxor     %xmm0, %xmm0
+; SSE41-NEXT:    pshufb   %xmm0, %xmm1
+; SSE41-NEXT:    psllw    $5, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm3
+; SSE41-NEXT:    paddb    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm2, %xmm4
+; SSE41-NEXT:    psrlw    $4, %xmm4
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm4
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm4, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psrlw    $2, %xmm1
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm1
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psrlw    $1, %xmm1
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm1
+; SSE41-NEXT:    paddb    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: splatvar_shift_v16i8:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpxor     %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpshufb   %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddb    %xmm1, %xmm1, %xmm2
+; AVX1-NEXT:    vpsrlw    $4, %xmm0, %xmm3
+; AVX1-NEXT:    vpand     {{.*}}(%rip), %xmm3, %xmm3
+; AVX1-NEXT:    vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vpand     {{.*}}(%rip), %xmm1, %xmm1
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vpand     {{.*}}(%rip), %xmm1, %xmm1
+; AVX1-NEXT:    vpaddb    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: splatvar_shift_v16i8:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpbroadcastb %xmm1, %xmm1
+; AVX2-NEXT:    vpsllw       $5, %xmm1, %xmm1
+; AVX2-NEXT:    vpsrlw       $4, %xmm0, %xmm2
+; AVX2-NEXT:    vpand        {{.*}}(%rip), %xmm2, %xmm2
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpsrlw       $2, %xmm0, %xmm2
+; AVX2-NEXT:    vpand        {{.*}}(%rip), %xmm2, %xmm2
+; AVX2-NEXT:    vpaddb       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpsrlw       $1, %xmm0, %xmm2
+; AVX2-NEXT:    vpand        {{.*}}(%rip), %xmm2, %xmm2
+; AVX2-NEXT:    vpaddb       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %splat = shufflevector <16 x i8> %b, <16 x i8> undef, <16 x i32> zeroinitializer
+  %shift = lshr <16 x i8> %a, %splat
+  ret <16 x i8> %shift
+}
+
+;
+; Constant Shifts
+;
+
+define <2 x i64> @constant_shift_v2i64(<2 x i64> %a) {
+; SSE2-LABEL: constant_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlq  $7, %xmm1
+; SSE2-NEXT:    psrlq  $1, %xmm0
+; SSE2-NEXT:    movsd  {{.*#+}} xmm1 = xmm0[0],xmm1[1]
+; SSE2-NEXT:    movapd %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa  %xmm0, %xmm1
+; SSE41-NEXT:    psrlq   $7, %xmm1
+; SSE41-NEXT:    psrlq   $1, %xmm0
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v2i64:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsrlq  $7, %xmm0, %xmm1
+; AVX1-NEXT:    vpsrlq  $1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v2i64:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsrlvq {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = lshr <2 x i64> %a, <i64 1, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @constant_shift_v4i32(<4 x i32> %a) {
+; SSE2-LABEL: constant_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm0[3,1,2,3]
+; SSE2-NEXT:    movd      %xmm1, %eax
+; SSE2-NEXT:    shrl      $7, %eax
+; SSE2-NEXT:    movd      %eax, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm0[1,1,2,3]
+; SSE2-NEXT:    movd      %xmm2, %eax
+; SSE2-NEXT:    shrl      $5, %eax
+; SSE2-NEXT:    movd      %eax, %xmm2
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    shrl      $4, %eax
+; SSE2-NEXT:    movd      %eax, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[2,3,0,1]
+; SSE2-NEXT:    movd      %xmm0, %eax
+; SSE2-NEXT:    shrl      $6, %eax
+; SSE2-NEXT:    movd      %eax, %xmm0
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; SSE2-NEXT:    movdqa    %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pextrd $1, %xmm0, %eax
+; SSE41-NEXT:    shrl   $5, %eax
+; SSE41-NEXT:    movd   %xmm0, %ecx
+; SSE41-NEXT:    shrl   $4, %ecx
+; SSE41-NEXT:    movd   %ecx, %xmm1
+; SSE41-NEXT:    pinsrd $1, %eax, %xmm1
+; SSE41-NEXT:    pextrd $2, %xmm0, %eax
+; SSE41-NEXT:    shrl   $6, %eax
+; SSE41-NEXT:    pinsrd $2, %eax, %xmm1
+; SSE41-NEXT:    pextrd $3, %xmm0, %eax
+; SSE41-NEXT:    shrl   $7, %eax
+; SSE41-NEXT:    pinsrd $3, %eax, %xmm1
+; SSE41-NEXT:    movdqa %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpextrd $1, %xmm0, %eax
+; AVX1-NEXT:    shrl    $5, %eax
+; AVX1-NEXT:    vmovd   %xmm0, %ecx
+; AVX1-NEXT:    shrl    $4, %ecx
+; AVX1-NEXT:    vmovd   %ecx, %xmm1
+; AVX1-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
+; AVX1-NEXT:    vpextrd $2, %xmm0, %eax
+; AVX1-NEXT:    shrl    $6, %eax
+; AVX1-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
+; AVX1-NEXT:    vpextrd $3, %xmm0, %eax
+; AVX1-NEXT:    shrl    $7, %eax
+; AVX1-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsrlvd {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = lshr <4 x i32> %a, <i32 4, i32 5, i32 6, i32 7>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @constant_shift_v8i16(<8 x i16> %a) {
+; SSE2-LABEL: constant_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa    %xmm0, %xmm1
+; SSE2-NEXT:    psrlw     $4, %xmm1
+; SSE2-NEXT:    movsd     {{.*#+}} xmm1 = xmm0[0],xmm1[1]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm1[0,2,2,3]
+; SSE2-NEXT:    psrlw     $2, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}}  xmm0 = xmm1[1,3,2,3]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm0[0],xmm2[1],xmm0[1]
+; SSE2-NEXT:    movdqa    {{.*#+}} xmm0 = [65535,0,65535,0,65535,0,65535,0]
+; SSE2-NEXT:    movdqa    %xmm2, %xmm1
+; SSE2-NEXT:    pand      %xmm0, %xmm1
+; SSE2-NEXT:    psrlw     $1, %xmm2
+; SSE2-NEXT:    pandn     %xmm2, %xmm0
+; SSE2-NEXT:    por       %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $8, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,4112,8224,12336,16448,20560,24672,28784]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $4, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,8224,16448,24672,32896,41120,49344,57568]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $2, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,16448,32896,49344,256,16704,33152,49600]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $1, %xmm2
+; SSE41-NEXT:    movaps   {{.*#+}} xmm0 = [0,32896,256,33152,512,33408,768,33664]
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v8i16:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsrlw    $8, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,4112,8224,12336,16448,20560,24672,28784]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $4, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,8224,16448,24672,32896,41120,49344,57568]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,16448,32896,49344,256,16704,33152,49600]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsrlw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vmovdqa   {{.*}}(%rip), %xmm2  # xmm2 = [0,32896,256,33152,512,33408,768,33664]
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v8i16:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm1 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero,mem[4],zero,mem[5],zero,mem[6],zero,mem[7],zero
+; AVX2-NEXT:    vpsrlvd   %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb   {{.*#+}} ymm0 = ymm0[0,1,4,5,8,9,12,13],zero,zero,zero,zero,zero,zero,zero,zero,ymm0[16,17,20,21,24,25,28,29],zero,zero,zero,zero,zero,zero,zero,zero
+; AVX2-NEXT:    vpermq    {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %shift = lshr <8 x i16> %a, <i16 0, i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) {
+; SSE2-LABEL: constant_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa  {{.*#+}} xmm2 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE2-NEXT:    psllw   $5, %xmm2
+; SSE2-NEXT:    pxor    %xmm1, %xmm1
+; SSE2-NEXT:    pxor    %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm3
+; SSE2-NEXT:    movdqa  %xmm3, %xmm4
+; SSE2-NEXT:    pandn   %xmm0, %xmm4
+; SSE2-NEXT:    psrlw   $4, %xmm0
+; SSE2-NEXT:    pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pand    %xmm3, %xmm0
+; SSE2-NEXT:    por     %xmm4, %xmm0
+; SSE2-NEXT:    paddb   %xmm2, %xmm2
+; SSE2-NEXT:    pxor    %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm3
+; SSE2-NEXT:    movdqa  %xmm3, %xmm4
+; SSE2-NEXT:    pandn   %xmm0, %xmm4
+; SSE2-NEXT:    psrlw   $2, %xmm0
+; SSE2-NEXT:    pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pand    %xmm3, %xmm0
+; SSE2-NEXT:    por     %xmm4, %xmm0
+; SSE2-NEXT:    paddb   %xmm2, %xmm2
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm1
+; SSE2-NEXT:    movdqa  %xmm1, %xmm2
+; SSE2-NEXT:    pandn   %xmm0, %xmm2
+; SSE2-NEXT:    psrlw   $1, %xmm0
+; SSE2-NEXT:    pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pand    %xmm1, %xmm0
+; SSE2-NEXT:    por     %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   {{.*#+}} xmm0 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE41-NEXT:    psllw    $5, %xmm0
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $4, %xmm2
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm2
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $2, %xmm2
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm2
+; SSE41-NEXT:    paddb    %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psrlw    $1, %xmm2
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm2
+; SSE41-NEXT:    paddb    %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: constant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa   {{.*#+}} xmm1 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; AVX-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX-NEXT:    vpsrlw    $4, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw    $2, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsrlw    $1, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <16 x i8> %a, <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 7, i8 6, i8 5, i8 4, i8 3, i8 2, i8 1, i8 0>
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Constant Shifts
+;
+
+define <2 x i64> @splatconstant_shift_v2i64(<2 x i64> %a) {
+; SSE-LABEL: splatconstant_shift_v2i64:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrlq $7, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrlq $7, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <2 x i64> %a, <i64 7, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatconstant_shift_v4i32(<4 x i32> %a) {
+; SSE-LABEL: splatconstant_shift_v4i32:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrld $5, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrld $5, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <4 x i32> %a, <i32 5, i32 5, i32 5, i32 5>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatconstant_shift_v8i16(<8 x i16> %a) {
+; SSE-LABEL: splatconstant_shift_v8i16:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrlw $3, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrlw $3, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <8 x i16> %a, <i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatconstant_shift_v16i8(<16 x i8> %a) {
+; SSE-LABEL: splatconstant_shift_v16i8:
+; SSE:       # BB#0:
+; SSE-NEXT:    psrlw     $3, %xmm0
+; SSE-NEXT:    pand      {{.*}}(%rip), %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsrlw    $3, %xmm0
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm0
+; AVX-NEXT:    retq
+  %shift = lshr <16 x i8> %a, <i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3>
+  ret <16 x i8> %shift
+}
diff --git a/test/CodeGen/X86/vector-shift-shl-128.ll b/test/CodeGen/X86/vector-shift-shl-128.ll
new file mode 100644
index 00000000000..3ac31ea6367
--- /dev/null
+++ b/test/CodeGen/X86/vector-shift-shl-128.ll
@@ -0,0 +1,639 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE41
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
+
+;
+; Variable Shifts
+;
+
+define <2 x i64> @var_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE2-LABEL: var_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm1[2,3,0,1]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    psllq  %xmm3, %xmm2
+; SSE2-NEXT:    psllq  %xmm1, %xmm0
+; SSE2-NEXT:    movsd  {{.*#+}} xmm2 = xmm0[0],xmm2[1]
+; SSE2-NEXT:    movapd %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa  %xmm0, %xmm2
+; SSE41-NEXT:    psllq   %xmm1, %xmm2
+; SSE41-NEXT:    pshufd  {{.*#+}} xmm1 = xmm1[2,3,0,1]
+; SSE41-NEXT:    psllq   %xmm1, %xmm0
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm2[0,1,2,3],xmm0[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v2i64:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsllq   %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufd  {{.*#+}} xmm1 = xmm1[2,3,0,1]
+; AVX1-NEXT:    vpsllq   %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm2[0,1,2,3],xmm0[4,5,6,7]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v2i64:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsllvq %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = shl <2 x i64> %a, %b
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @var_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: var_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    pslld     $23, %xmm1
+; SSE2-NEXT:    paddd     {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    cvttps2dq %xmm1, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm1[1,1,3,3]
+; SSE2-NEXT:    pmuludq   %xmm0, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[1,1,3,3]
+; SSE2-NEXT:    pmuludq   %xmm2, %xmm0
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE2-NEXT:    movdqa    %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pslld     $23, %xmm1
+; SSE41-NEXT:    paddd     {{.*}}(%rip), %xmm1
+; SSE41-NEXT:    cvttps2dq %xmm1, %xmm1
+; SSE41-NEXT:    pmulld    %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpslld     $23, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddd     {{.*}}(%rip), %xmm1, %xmm1
+; AVX1-NEXT:    vcvttps2dq %xmm1, %xmm1
+; AVX1-NEXT:    vpmulld    %xmm0, %xmm1, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsllvd %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = shl <4 x i32> %a, %b
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: var_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    psllw  $12, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psllw  $8, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psllw  $4, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    psraw  $15, %xmm2
+; SSE2-NEXT:    movdqa %xmm2, %xmm3
+; SSE2-NEXT:    pandn  %xmm0, %xmm3
+; SSE2-NEXT:    psllw  $2, %xmm0
+; SSE2-NEXT:    pand   %xmm2, %xmm0
+; SSE2-NEXT:    por    %xmm3, %xmm0
+; SSE2-NEXT:    paddw  %xmm1, %xmm1
+; SSE2-NEXT:    psraw  $15, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    pandn  %xmm0, %xmm2
+; SSE2-NEXT:    psllw  $1, %xmm0
+; SSE2-NEXT:    pand   %xmm1, %xmm0
+; SSE2-NEXT:    por    %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: var_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    psllw    $12, %xmm0
+; SSE41-NEXT:    psllw    $4, %xmm1
+; SSE41-NEXT:    por      %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm3
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm2, %xmm4
+; SSE41-NEXT:    psllw    $8, %xmm4
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm4, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psllw    $4, %xmm1
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psllw    $2, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psllw    $1, %xmm1
+; SSE41-NEXT:    paddw    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: var_shift_v8i16:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsllw    $12, %xmm1, %xmm2
+; AVX1-NEXT:    vpsllw    $4, %xmm1, %xmm1
+; AVX1-NEXT:    vpor      %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm1, %xmm1, %xmm2
+; AVX1-NEXT:    vpsllw    $8, %xmm0, %xmm3
+; AVX1-NEXT:    vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsllw    $4, %xmm0, %xmm1
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsllw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpsllw    $1, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddw    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: var_shift_v8i16:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm1 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
+; AVX2-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
+; AVX2-NEXT:    vpsllvd   %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb   {{.*#+}} ymm0 = ymm0[0,1,4,5,8,9,12,13],zero,zero,zero,zero,zero,zero,zero,zero,ymm0[16,17,20,21,24,25,28,29],zero,zero,zero,zero,zero,zero,zero,zero
+; AVX2-NEXT:    vpermq    {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %shift = shl <8 x i16> %a, %b
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: var_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:  psllw   $5, %xmm1
+; SSE2-NEXT:  pxor    %xmm2, %xmm2
+; SSE2-NEXT:  pxor    %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
+; SSE2-NEXT:  movdqa  %xmm3, %xmm4
+; SSE2-NEXT:  pandn   %xmm0, %xmm4
+; SSE2-NEXT:  psllw   $4, %xmm0
+; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand    %xmm3, %xmm0
+; SSE2-NEXT:  por     %xmm4, %xmm0
+; SSE2-NEXT:  paddb   %xmm1, %xmm1
+; SSE2-NEXT:  pxor    %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm3
+; SSE2-NEXT:  movdqa  %xmm3, %xmm4
+; SSE2-NEXT:  pandn   %xmm0, %xmm4
+; SSE2-NEXT:  psllw   $2, %xmm0
+; SSE2-NEXT:  pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand    %xmm3, %xmm0
+; SSE2-NEXT:  por     %xmm4, %xmm0
+; SSE2-NEXT:  paddb   %xmm1, %xmm1
+; SSE2-NEXT:  pcmpgtb %xmm1, %xmm2
+; SSE2-NEXT:  movdqa  %xmm2, %xmm1
+; SSE2-NEXT:  pandn   %xmm0, %xmm1
+; SSE2-NEXT:  paddb   %xmm0, %xmm0
+; SSE2-NEXT:  pand    %xmm2, %xmm0
+; SSE2-NEXT:  por     %xmm1, %xmm0
+; SSE2-NEXT:  retq
+;
+; SSE41-LABEL: var_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    psllw    $5, %xmm1
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    psllw    $4, %xmm3
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm3
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    psllw    $2, %xmm3
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm3
+; SSE41-NEXT:    paddb    %xmm1, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm3
+; SSE41-NEXT:    paddb    %xmm3, %xmm3
+; SSE41-NEXT:    paddb    %xmm1, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm3, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: var_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX-NEXT:    vpsllw    $4, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsllw    $2, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpaddb    %xmm0, %xmm0, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <16 x i8> %a, %b
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Variable Shifts
+;
+
+define <2 x i64> @splatvar_shift_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; SSE-LABEL: splatvar_shift_v2i64:
+; SSE:       # BB#0:
+; SSE-NEXT:    psllq %xmm1, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllq %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <2 x i64> %b, <2 x i64> undef, <2 x i32> zeroinitializer
+  %shift = shl <2 x i64> %a, %splat
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatvar_shift_v4i32(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: splatvar_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    xorps %xmm2, %xmm2
+; SSE2-NEXT:    movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
+; SSE2-NEXT:    pslld %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; SSE41-NEXT:    pslld %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3,4,5,6,7]
+; AVX-NEXT:    vpslld %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <4 x i32> %b, <4 x i32> undef, <4 x i32> zeroinitializer
+  %shift = shl <4 x i32> %a, %splat
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatvar_shift_v8i16(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: splatvar_shift_v8i16:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movd   %xmm1, %eax
+; SSE2-NEXT:    movzwl %ax, %eax
+; SSE2-NEXT:    movd   %eax, %xmm1
+; SSE2-NEXT:    psllw  %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: splatvar_shift_v8i16:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm2, %xmm2
+; SSE41-NEXT:    pblendw {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; SSE41-NEXT:    psllw %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: splatvar_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0],xmm2[1,2,3,4,5,6,7]
+; AVX-NEXT:    vpsllw %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %splat = shufflevector <8 x i16> %b, <8 x i16> undef, <8 x i32> zeroinitializer
+  %shift = shl <8 x i16> %a, %splat
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) {
+; SSE2-LABEL: splatvar_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:  punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:  pshufd    {{.*#+}} xmm1 = xmm1[0,1,0,3]
+; SSE2-NEXT:  pshuflw   {{.*#+}} xmm1 = xmm1[0,0,0,0,4,5,6,7]
+; SSE2-NEXT:  pshufhw   {{.*#+}} xmm2 = xmm1[0,1,2,3,4,4,4,4]
+; SSE2-NEXT:  psllw     $5, %xmm2
+; SSE2-NEXT:  pxor      %xmm1, %xmm1
+; SSE2-NEXT:  pxor      %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm3
+; SSE2-NEXT:  movdqa    %xmm3, %xmm4
+; SSE2-NEXT:  pandn     %xmm0, %xmm4
+; SSE2-NEXT:  psllw     $4, %xmm0
+; SSE2-NEXT:  pand      {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand      %xmm3, %xmm0
+; SSE2-NEXT:  por       %xmm4, %xmm0
+; SSE2-NEXT:  paddb     %xmm2, %xmm2
+; SSE2-NEXT:  pxor      %xmm3, %xmm3
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm3
+; SSE2-NEXT:  movdqa    %xmm3, %xmm4
+; SSE2-NEXT:  pandn     %xmm0, %xmm4
+; SSE2-NEXT:  psllw     $2, %xmm0
+; SSE2-NEXT:  pand      {{.*}}(%rip), %xmm0
+; SSE2-NEXT:  pand      %xmm3, %xmm0
+; SSE2-NEXT:  por       %xmm4, %xmm0
+; SSE2-NEXT:  paddb     %xmm2, %xmm2
+; SSE2-NEXT:  pcmpgtb   %xmm2, %xmm1
+; SSE2-NEXT:  movdqa    %xmm1, %xmm2
+; SSE2-NEXT:  pandn     %xmm0, %xmm2
+; SSE2-NEXT:  paddb     %xmm0, %xmm0
+; SSE2-NEXT:  pand      %xmm1, %xmm0
+; SSE2-NEXT:  por       %xmm2, %xmm0
+; SSE2-NEXT:  retq
+;
+; SSE41-LABEL: splatvar_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm2
+; SSE41-NEXT:    pxor     %xmm0, %xmm0
+; SSE41-NEXT:    pshufb   %xmm0, %xmm1
+; SSE41-NEXT:    psllw    $5, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm3
+; SSE41-NEXT:    paddb    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm2, %xmm4
+; SSE41-NEXT:    psllw    $4, %xmm4
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm4
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    pblendvb %xmm4, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    psllw    $2, %xmm1
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm1
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm1
+; SSE41-NEXT:    paddb    %xmm1, %xmm1
+; SSE41-NEXT:    paddb    %xmm3, %xmm3
+; SSE41-NEXT:    movdqa   %xmm3, %xmm0
+; SSE41-NEXT:    pblendvb %xmm1, %xmm2
+; SSE41-NEXT:    movdqa   %xmm2, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: splatvar_shift_v16i8:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpxor     %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpshufb   %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddb    %xmm1, %xmm1, %xmm2
+; AVX1-NEXT:    vpsllw    $4, %xmm0, %xmm3
+; AVX1-NEXT:    vpand     {{.*}}(%rip), %xmm3, %xmm3
+; AVX1-NEXT:    vpblendvb %xmm1, %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsllw    $2, %xmm0, %xmm1
+; AVX1-NEXT:    vpand     {{.*}}(%rip), %xmm1, %xmm1
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpaddb    %xmm0, %xmm0, %xmm1
+; AVX1-NEXT:    vpaddb    %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm2, %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: splatvar_shift_v16i8:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpbroadcastb %xmm1, %xmm1
+; AVX2-NEXT:    vpsllw       $5, %xmm1, %xmm1
+; AVX2-NEXT:    vpsllw       $4, %xmm0, %xmm2
+; AVX2-NEXT:    vpand        {{.*}}(%rip), %xmm2, %xmm2
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpsllw       $2, %xmm0, %xmm2
+; AVX2-NEXT:    vpand        {{.*}}(%rip), %xmm2, %xmm2
+; AVX2-NEXT:    vpaddb       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpaddb       %xmm0, %xmm0, %xmm2
+; AVX2-NEXT:    vpaddb       %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpblendvb    %xmm1, %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %splat = shufflevector <16 x i8> %b, <16 x i8> undef, <16 x i32> zeroinitializer
+  %shift = shl <16 x i8> %a, %splat
+  ret <16 x i8> %shift
+}
+
+;
+; Constant Shifts
+;
+
+define <2 x i64> @constant_shift_v2i64(<2 x i64> %a) {
+; SSE2-LABEL: constant_shift_v2i64:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psllq  $7, %xmm1
+; SSE2-NEXT:    psllq  $1, %xmm0
+; SSE2-NEXT:    movsd  {{.*#+}} xmm1 = xmm0[0],xmm1[1]
+; SSE2-NEXT:    movapd %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v2i64:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa  %xmm0, %xmm1
+; SSE41-NEXT:    psllq   $7, %xmm1
+; SSE41-NEXT:    psllq   $1, %xmm0
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v2i64:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpsllq  $7, %xmm0, %xmm1
+; AVX1-NEXT:    vpsllq  $1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v2i64:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsllvq {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = shl <2 x i64> %a, <i64 1, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @constant_shift_v4i32(<4 x i32> %a) {
+; SSE2-LABEL: constant_shift_v4i32:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa    {{.*#+}} xmm1 = [16,32,64,128]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm2 = xmm0[1,1,3,3]
+; SSE2-NEXT:    pmuludq   %xmm1, %xmm0
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm1[1,1,3,3]
+; SSE2-NEXT:    pmuludq   %xmm2, %xmm1
+; SSE2-NEXT:    pshufd    {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v4i32:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pmulld {{.*}}(%rip), %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: constant_shift_v4i32:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vpmulld {{.*}}(%rip), %xmm0, %xmm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: constant_shift_v4i32:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpsllvd {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %shift = shl <4 x i32> %a, <i32 4, i32 5, i32 6, i32 7>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @constant_shift_v8i16(<8 x i16> %a) {
+; SSE-LABEL: constant_shift_v8i16:
+; SSE:       # BB#0:
+; SSE-NEXT:    pmullw {{.*}}(%rip), %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: constant_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpmullw {{.*}}(%rip), %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <8 x i16> %a, <i16 0, i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) {
+; SSE2-LABEL: constant_shift_v16i8:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    movdqa  {{.*#+}} xmm2 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE2-NEXT:    psllw   $5, %xmm2
+; SSE2-NEXT:    pxor    %xmm1, %xmm1
+; SSE2-NEXT:    pxor    %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm3
+; SSE2-NEXT:    movdqa  %xmm3, %xmm4
+; SSE2-NEXT:    pandn   %xmm0, %xmm4
+; SSE2-NEXT:    psllw   $4, %xmm0
+; SSE2-NEXT:    pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pand    %xmm3, %xmm0
+; SSE2-NEXT:    por     %xmm4, %xmm0
+; SSE2-NEXT:    paddb   %xmm2, %xmm2
+; SSE2-NEXT:    pxor    %xmm3, %xmm3
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm3
+; SSE2-NEXT:    movdqa  %xmm3, %xmm4
+; SSE2-NEXT:    pandn   %xmm0, %xmm4
+; SSE2-NEXT:    psllw   $2, %xmm0
+; SSE2-NEXT:    pand    {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pand    %xmm3, %xmm0
+; SSE2-NEXT:    por     %xmm4, %xmm0
+; SSE2-NEXT:    paddb   %xmm2, %xmm2
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm1
+; SSE2-NEXT:    movdqa  %xmm1, %xmm2
+; SSE2-NEXT:    pandn   %xmm0, %xmm2
+; SSE2-NEXT:    paddb   %xmm0, %xmm0
+; SSE2-NEXT:    pand    %xmm1, %xmm0
+; SSE2-NEXT:    por     %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE41-LABEL: constant_shift_v16i8:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    movdqa   %xmm0, %xmm1
+; SSE41-NEXT:    movdqa   {{.*#+}} xmm0 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; SSE41-NEXT:    psllw    $5, %xmm0
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psllw    $4, %xmm2
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm2
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    psllw    $2, %xmm2
+; SSE41-NEXT:    pand     {{.*}}(%rip), %xmm2
+; SSE41-NEXT:    paddb    %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm2
+; SSE41-NEXT:    paddb    %xmm2, %xmm2
+; SSE41-NEXT:    paddb    %xmm0, %xmm0
+; SSE41-NEXT:    pblendvb %xmm2, %xmm1
+; SSE41-NEXT:    movdqa   %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: constant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vmovdqa   {{.*#+}} xmm1 = [0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0]
+; AVX-NEXT:    vpsllw    $5, %xmm1, %xmm1
+; AVX-NEXT:    vpsllw    $4, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpsllw    $2, %xmm0, %xmm2
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm2, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpaddb    %xmm0, %xmm0, %xmm2
+; AVX-NEXT:    vpaddb    %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendvb %xmm1, %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <16 x i8> %a, <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 7, i8 6, i8 5, i8 4, i8 3, i8 2, i8 1, i8 0>
+  ret <16 x i8> %shift
+}
+
+;
+; Uniform Constant Shifts
+;
+
+define <2 x i64> @splatconstant_shift_v2i64(<2 x i64> %a) {
+; SSE-LABEL: splatconstant_shift_v2i64:
+; SSE:       # BB#0:
+; SSE-NEXT:    psllq $7, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v2i64:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllq $7, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <2 x i64> %a, <i64 7, i64 7>
+  ret <2 x i64> %shift
+}
+
+define <4 x i32> @splatconstant_shift_v4i32(<4 x i32> %a) {
+; SSE-LABEL: splatconstant_shift_v4i32:
+; SSE:       # BB#0:
+; SSE-NEXT:    pslld $5, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v4i32:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpslld $5, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <4 x i32> %a, <i32 5, i32 5, i32 5, i32 5>
+  ret <4 x i32> %shift
+}
+
+define <8 x i16> @splatconstant_shift_v8i16(<8 x i16> %a) {
+; SSE-LABEL: splatconstant_shift_v8i16:
+; SSE:       # BB#0:
+; SSE-NEXT:    psllw $3, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v8i16:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllw $3, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <8 x i16> %a, <i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3, i16 3>
+  ret <8 x i16> %shift
+}
+
+define <16 x i8> @splatconstant_shift_v16i8(<16 x i8> %a) {
+; SSE-LABEL: splatconstant_shift_v16i8:
+; SSE:       # BB#0:
+; SSE-NEXT:    psllw     $3, %xmm0
+; SSE-NEXT:    pand      {{.*}}(%rip), %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: splatconstant_shift_v16i8:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpsllw    $3, %xmm0
+; AVX-NEXT:    vpand     {{.*}}(%rip), %xmm0
+; AVX-NEXT:    retq
+  %shift = shl <16 x i8> %a, <i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3, i8 3>
+  ret <16 x i8> %shift
+}