[X86][SSE] Added extra vector truncation tests.

Including cases for PR14866

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245274 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/vector-trunc.ll b/test/CodeGen/X86/vector-trunc.ll
index 2480e676cad0855db8ecec617635d261e8275183..74fc5ff2064b9d6b3e8a7038aa458db3a8b95767 100644 (file)
--- a/test/CodeGen/X86/vector-trunc.ll
+++ b/test/CodeGen/X86/vector-trunc.ll
@@ -2,37 +2,387 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+ssse3 | FileCheck %s --check-prefix=SSE --check-prefix=SSSE3
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE --check-prefix=SSE41
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=AVX --check-prefix=AVX2
 
-define <4 x i32> @trunc2x2i64(<2 x i64> %a, <2 x i64> %b) {
-; SSE2-LABEL: trunc2x2i64:
+define <8 x i32> @trunc8i64_8i32(<8 x i64> %a) {
+; SSE2-LABEL: trunc8i64_8i32:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
 ; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
 ; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,2,2,3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm3[0]
 ; SSE2-NEXT:    retq
 ;
-; SSSE3-LABEL: trunc2x2i64:
+; SSSE3-LABEL: trunc8i64_8i32:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
 ; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
 ; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,2,2,3]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm3[0]
 ; SSSE3-NEXT:    retq
 ;
-; SSE41-LABEL: trunc2x2i64:
+; SSE41-LABEL: trunc8i64_8i32:
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
 ; SSE41-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
 ; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,1,0,2]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSE41-NEXT:    pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm3[4,5,6,7]
 ; SSE41-NEXT:    retq
 ;
-; AVX-LABEL: trunc2x2i64:
-; AVX:       # BB#0: # %entry
-; AVX-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
-; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
-; AVX-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
-; AVX-NEXT:    retq
+; AVX1-LABEL: trunc8i64_8i32:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc8i64_8i32:
+; AVX2:       # BB#0: # %entry
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = <0,2,4,6,u,u,u,u>
+; AVX2-NEXT:    vpermd %ymm0, %ymm2, %ymm0
+; AVX2-NEXT:    vpermd %ymm1, %ymm2, %ymm1
+; AVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX2-NEXT:    retq
+entry:
+  %0 = trunc <8 x i64> %a to <8 x i32>
+  ret <8 x i32> %0
+}
+
+define <8 x i16> @trunc8i64_8i16(<8 x i64> %a) {
+; SSE2-LABEL: trunc8i64_8i16:
+; SSE2:       # BB#0: # %entry
+; SSE2-NEXT:    pextrw $4, %xmm1, %eax
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm3[0],xmm1[1],xmm3[1],xmm1[2],xmm3[2],xmm1[3],xmm3[3]
+; SSE2-NEXT:    pextrw $4, %xmm0, %ecx
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; SSE2-NEXT:    pextrw $4, %xmm3, %edx
+; SSE2-NEXT:    movd %edx, %xmm1
+; SSE2-NEXT:    movd %eax, %xmm3
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm3 = xmm3[0],xmm1[0],xmm3[1],xmm1[1],xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSE2-NEXT:    pextrw $4, %xmm2, %eax
+; SSE2-NEXT:    movd %eax, %xmm1
+; SSE2-NEXT:    movd %ecx, %xmm2
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1],xmm2[2],xmm1[2],xmm2[3],xmm1[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1],xmm2[2],xmm3[2],xmm2[3],xmm3[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: trunc8i64_8i16:
+; SSSE3:       # BB#0: # %entry
+; SSSE3-NEXT:    pextrw $4, %xmm1, %eax
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm3[0],xmm1[1],xmm3[1],xmm1[2],xmm3[2],xmm1[3],xmm3[3]
+; SSSE3-NEXT:    pextrw $4, %xmm0, %ecx
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; SSSE3-NEXT:    pextrw $4, %xmm3, %edx
+; SSSE3-NEXT:    movd %edx, %xmm1
+; SSSE3-NEXT:    movd %eax, %xmm3
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm3 = xmm3[0],xmm1[0],xmm3[1],xmm1[1],xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSSE3-NEXT:    pextrw $4, %xmm2, %eax
+; SSSE3-NEXT:    movd %eax, %xmm1
+; SSSE3-NEXT:    movd %ecx, %xmm2
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1],xmm2[2],xmm1[2],xmm2[3],xmm1[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1],xmm2[2],xmm3[2],xmm2[3],xmm3[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: trunc8i64_8i16:
+; SSE41:       # BB#0: # %entry
+; SSE41-NEXT:    pextrw $4, %xmm0, %eax
+; SSE41-NEXT:    pinsrw $1, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm1, %eax
+; SSE41-NEXT:    pinsrw $2, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm1, %eax
+; SSE41-NEXT:    pinsrw $3, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm2, %eax
+; SSE41-NEXT:    pinsrw $4, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm2, %eax
+; SSE41-NEXT:    pinsrw $5, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm3, %eax
+; SSE41-NEXT:    pinsrw $6, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm3, %eax
+; SSE41-NEXT:    pinsrw $7, %eax, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: trunc8i64_8i16:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm3
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm3 = xmm3[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm3[4,5,6,7]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc8i64_8i16:
+; AVX2:       # BB#0: # %entry
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = <0,2,4,6,u,u,u,u>
+; AVX2-NEXT:    vpermd %ymm0, %ymm2, %ymm0
+; AVX2-NEXT:    vpermd %ymm1, %ymm2, %ymm1
+; AVX2-NEXT:    vinserti128 $1, %xmm1, %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
+entry:
+  %0 = trunc <8 x i64> %a to <8 x i16>
+  ret <8 x i16> %0
+}
+
+define <8 x i16> @trunc8i32_8i16(<8 x i32> %a) {
+; SSE2-LABEL: trunc8i32_8i16:
+; SSE2:       # BB#0: # %entry
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm1 = xmm1[0,2,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm1 = xmm1[0,1,2,3,4,6,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,2,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: trunc8i32_8i16:
+; SSSE3:       # BB#0: # %entry
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; SSSE3-NEXT:    pshufb %xmm2, %xmm1
+; SSSE3-NEXT:    pshufb %xmm2, %xmm0
+; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: trunc8i32_8i16:
+; SSE41:       # BB#0: # %entry
+; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; SSE41-NEXT:    pshufb %xmm2, %xmm1
+; SSE41-NEXT:    pshufb %xmm2, %xmm0
+; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: trunc8i32_8i16:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc8i32_8i16:
+; AVX2:       # BB#0: # %entry
+; 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
+entry:
+  %0 = trunc <8 x i32> %a to <8 x i16>
+  ret <8 x i16> %0
+}
+
+define <8 x i32> @trunc2x4i64_8i32(<4 x i64> %a, <4 x i64> %b) {
+; SSE2-LABEL: trunc2x4i64_8i32:
+; SSE2:       # BB#0: # %entry
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,2,2,3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm3[0]
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: trunc2x4i64_8i32:
+; SSSE3:       # BB#0: # %entry
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,2,2,3]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm3[0]
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: trunc2x4i64_8i32:
+; SSE41:       # BB#0: # %entry
+; SSE41-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm3 = xmm3[0,1,0,2]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm1 = xmm2[0,2,2,3]
+; SSE41-NEXT:    pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm3[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: trunc2x4i64_8i32:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc2x4i64_8i32:
+; AVX2:       # BB#0: # %entry
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = <0,2,4,6,u,u,u,u>
+; AVX2-NEXT:    vpermd %ymm0, %ymm2, %ymm0
+; AVX2-NEXT:    vpermd %ymm1, %ymm2, %ymm1
+; AVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX2-NEXT:    retq
+entry:
+  %0 = trunc <4 x i64> %a to <4 x i32>
+  %1 = trunc <4 x i64> %b to <4 x i32>
+  %2 = shufflevector <4 x i32> %0, <4 x i32> %1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x i32> %2
+}
 
+define <8 x i16> @trunc2x4i64_8i16(<4 x i64> %a, <4 x i64> %b) {
+; SSE2-LABEL: trunc2x4i64_8i16:
+; SSE2:       # BB#0: # %entry
+; SSE2-NEXT:    pextrw $4, %xmm1, %eax
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm3[0],xmm1[1],xmm3[1],xmm1[2],xmm3[2],xmm1[3],xmm3[3]
+; SSE2-NEXT:    pextrw $4, %xmm0, %ecx
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; SSE2-NEXT:    pextrw $4, %xmm3, %edx
+; SSE2-NEXT:    movd %edx, %xmm1
+; SSE2-NEXT:    movd %eax, %xmm3
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm3 = xmm3[0],xmm1[0],xmm3[1],xmm1[1],xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSE2-NEXT:    pextrw $4, %xmm2, %eax
+; SSE2-NEXT:    movd %eax, %xmm1
+; SSE2-NEXT:    movd %ecx, %xmm2
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1],xmm2[2],xmm1[2],xmm2[3],xmm1[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1],xmm2[2],xmm3[2],xmm2[3],xmm3[3]
+; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: trunc2x4i64_8i16:
+; SSSE3:       # BB#0: # %entry
+; SSSE3-NEXT:    pextrw $4, %xmm1, %eax
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm3[0],xmm1[1],xmm3[1],xmm1[2],xmm3[2],xmm1[3],xmm3[3]
+; SSSE3-NEXT:    pextrw $4, %xmm0, %ecx
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; SSSE3-NEXT:    pextrw $4, %xmm3, %edx
+; SSSE3-NEXT:    movd %edx, %xmm1
+; SSSE3-NEXT:    movd %eax, %xmm3
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm3 = xmm3[0],xmm1[0],xmm3[1],xmm1[1],xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSSE3-NEXT:    pextrw $4, %xmm2, %eax
+; SSSE3-NEXT:    movd %eax, %xmm1
+; SSSE3-NEXT:    movd %ecx, %xmm2
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1],xmm2[2],xmm1[2],xmm2[3],xmm1[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm2 = xmm2[0],xmm3[0],xmm2[1],xmm3[1],xmm2[2],xmm3[2],xmm2[3],xmm3[3]
+; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: trunc2x4i64_8i16:
+; SSE41:       # BB#0: # %entry
+; SSE41-NEXT:    pextrw $4, %xmm0, %eax
+; SSE41-NEXT:    pinsrw $1, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm1, %eax
+; SSE41-NEXT:    pinsrw $2, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm1, %eax
+; SSE41-NEXT:    pinsrw $3, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm2, %eax
+; SSE41-NEXT:    pinsrw $4, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm2, %eax
+; SSE41-NEXT:    pinsrw $5, %eax, %xmm0
+; SSE41-NEXT:    movd %xmm3, %eax
+; SSE41-NEXT:    pinsrw $6, %eax, %xmm0
+; SSE41-NEXT:    pextrw $4, %xmm3, %eax
+; SSE41-NEXT:    pinsrw $7, %eax, %xmm0
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: trunc2x4i64_8i16:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm2 = xmm2[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7]
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc2x4i64_8i16:
+; AVX2:       # BB#0: # %entry
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = <0,2,4,6,u,u,u,u>
+; AVX2-NEXT:    vpermd %ymm0, %ymm2, %ymm0
+; AVX2-NEXT:    vpermd %ymm1, %ymm2, %ymm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; AVX2-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
+; AVX2-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+entry:
+  %0 = trunc <4 x i64> %a to <4 x i16>
+  %1 = trunc <4 x i64> %b to <4 x i16>
+  %2 = shufflevector <4 x i16> %0, <4 x i16> %1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x i16> %2
+}
 
+define <4 x i32> @trunc2x2i64_4i32(<2 x i64> %a, <2 x i64> %b) {
+; SSE2-LABEL: trunc2x2i64_4i32:
+; SSE2:       # BB#0: # %entry
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: trunc2x2i64_4i32:
+; SSSE3:       # BB#0: # %entry
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: trunc2x2i64_4i32:
+; SSE41:       # BB#0: # %entry
+; SSE41-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX1-LABEL: trunc2x2i64_4i32:
+; AVX1:       # BB#0: # %entry
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
+; AVX1-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX1-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: trunc2x2i64_4i32:
+; AVX2:       # BB#0: # %entry
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[0,1,0,2]
+; AVX2-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; AVX2-NEXT:    vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
+; AVX2-NEXT:    retq
 entry:
   %0 = trunc <2 x i64> %a to <2 x i32>
   %1 = trunc <2 x i64> %b to <2 x i32>
@@ -40,28 +390,26 @@ entry:
   ret <4 x i32> %2
 }
 
-define i64 @trunc2i64(<2 x i64> %inval) {
-; SSE-LABEL: trunc2i64:
+define i64 @trunc2i64_i64(<2 x i64> %inval) {
+; SSE-LABEL: trunc2i64_i64:
 ; SSE:       # BB#0: # %entry
 ; SSE-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
 ; SSE-NEXT:    movd %xmm0, %rax
 ; SSE-NEXT:    retq
 ;
-; AVX-LABEL: trunc2i64:
+; AVX-LABEL: trunc2i64_i64:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
 ; AVX-NEXT:    vmovq %xmm0, %rax
 ; AVX-NEXT:    retq
-
-
 entry:
   %0 = trunc <2 x i64> %inval to <2 x i32>
   %1 = bitcast <2 x i32> %0 to i64
   ret i64 %1
 }
 
-define <8 x i16> @trunc2x4i32(<4 x i32> %a, <4 x i32> %b) {
-; SSE2-LABEL: trunc2x4i32:
+define <8 x i16> @trunc2x4i32_8i16(<4 x i32> %a, <4 x i32> %b) {
+; SSE2-LABEL: trunc2x4i32_8i16:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    pshuflw {{.*#+}} xmm1 = xmm1[0,2,2,3,4,5,6,7]
 ; SSE2-NEXT:    pshufhw {{.*#+}} xmm1 = xmm1[0,1,2,3,4,6,6,7]
@@ -72,7 +420,7 @@ define <8 x i16> @trunc2x4i32(<4 x i32> %a, <4 x i32> %b) {
 ; SSE2-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; SSE2-NEXT:    retq
 ;
-; SSSE3-LABEL: trunc2x4i32:
+; SSSE3-LABEL: trunc2x4i32_8i16:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; SSSE3-NEXT:    pshufb %xmm2, %xmm1
@@ -80,7 +428,7 @@ define <8 x i16> @trunc2x4i32(<4 x i32> %a, <4 x i32> %b) {
 ; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; SSSE3-NEXT:    retq
 ;
-; SSE41-LABEL: trunc2x4i32:
+; SSE41-LABEL: trunc2x4i32_8i16:
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; SSE41-NEXT:    pshufb %xmm2, %xmm1
@@ -88,17 +436,13 @@ define <8 x i16> @trunc2x4i32(<4 x i32> %a, <4 x i32> %b) {
 ; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; SSE41-NEXT:    retq
 ;
-; AVX-LABEL: trunc2x4i32:
+; AVX-LABEL: trunc2x4i32_8i16:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; AVX-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
 ; AVX-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; AVX-NEXT:    retq
-
-
-
-
 entry:
   %0 = trunc <4 x i32> %a to <4 x i16>
   %1 = trunc <4 x i32> %b to <4 x i16>
@@ -107,8 +451,8 @@ entry:
 }
 
 ; PR15524 http://llvm.org/bugs/show_bug.cgi?id=15524
-define i64 @trunc4i32(<4 x i32> %inval) {
-; SSE2-LABEL: trunc4i32:
+define i64 @trunc4i32_i64(<4 x i32> %inval) {
+; SSE2-LABEL: trunc4i32_i64:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,2,2,3,4,5,6,7]
 ; SSE2-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,6,7]
@@ -116,35 +460,31 @@ define i64 @trunc4i32(<4 x i32> %inval) {
 ; SSE2-NEXT:    movd %xmm0, %rax
 ; SSE2-NEXT:    retq
 ;
-; SSSE3-LABEL: trunc4i32:
+; SSSE3-LABEL: trunc4i32_i64:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; SSSE3-NEXT:    movd %xmm0, %rax
 ; SSSE3-NEXT:    retq
 ;
-; SSE41-LABEL: trunc4i32:
+; SSE41-LABEL: trunc4i32_i64:
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; SSE41-NEXT:    movd %xmm0, %rax
 ; SSE41-NEXT:    retq
 ;
-; AVX-LABEL: trunc4i32:
+; AVX-LABEL: trunc4i32_i64:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
 ; AVX-NEXT:    vmovq %xmm0, %rax
 ; AVX-NEXT:    retq
-
-
-
-
 entry:
   %0 = trunc <4 x i32> %inval to <4 x i16>
   %1 = bitcast <4 x i16> %0 to i64
   ret i64 %1
 }
 
-define <16 x i8> @trunc2x8i16(<8 x i16> %a, <8 x i16> %b) {
-; SSE2-LABEL: trunc2x8i16:
+define <16 x i8> @trunc2x8i16_16i8(<8 x i16> %a, <8 x i16> %b) {
+; SSE2-LABEL: trunc2x8i16_16i8:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm2 = [255,255,255,255,255,255,255,255]
 ; SSE2-NEXT:    pand %xmm2, %xmm1
@@ -152,7 +492,7 @@ define <16 x i8> @trunc2x8i16(<8 x i16> %a, <8 x i16> %b) {
 ; SSE2-NEXT:    packuswb %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
-; SSSE3-LABEL: trunc2x8i16:
+; SSSE3-LABEL: trunc2x8i16_16i8:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = <0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u>
 ; SSSE3-NEXT:    pshufb %xmm2, %xmm1
@@ -160,7 +500,7 @@ define <16 x i8> @trunc2x8i16(<8 x i16> %a, <8 x i16> %b) {
 ; SSSE3-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; SSSE3-NEXT:    retq
 ;
-; SSE41-LABEL: trunc2x8i16:
+; SSE41-LABEL: trunc2x8i16_16i8:
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = <0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u>
 ; SSE41-NEXT:    pshufb %xmm2, %xmm1
@@ -168,17 +508,13 @@ define <16 x i8> @trunc2x8i16(<8 x i16> %a, <8 x i16> %b) {
 ; SSE41-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; SSE41-NEXT:    retq
 ;
-; AVX-LABEL: trunc2x8i16:
+; AVX-LABEL: trunc2x8i16_16i8:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm2 = <0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u>
 ; AVX-NEXT:    vpshufb %xmm2, %xmm1, %xmm1
 ; AVX-NEXT:    vpshufb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
 ; AVX-NEXT:    retq
-
-
-
-
 entry:
   %0 = trunc <8 x i16> %a to <8 x i8>
   %1 = trunc <8 x i16> %b to <8 x i8>
@@ -187,48 +523,44 @@ entry:
 }
 
 ; PR15524 http://llvm.org/bugs/show_bug.cgi?id=15524
-define i64 @trunc8i16(<8 x i16> %inval) {
-; SSE2-LABEL: trunc8i16:
+define i64 @trunc8i16_i64(<8 x i16> %inval) {
+; SSE2-LABEL: trunc8i16_i64:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
 ; SSE2-NEXT:    packuswb %xmm0, %xmm0
 ; SSE2-NEXT:    movd %xmm0, %rax
 ; SSE2-NEXT:    retq
 ;
-; SSSE3-LABEL: trunc8i16:
+; SSSE3-LABEL: trunc8i16_i64:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u]
 ; SSSE3-NEXT:    movd %xmm0, %rax
 ; SSSE3-NEXT:    retq
 ;
-; SSE41-LABEL: trunc8i16:
+; SSE41-LABEL: trunc8i16_i64:
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u]
 ; SSE41-NEXT:    movd %xmm0, %rax
 ; SSE41-NEXT:    retq
 ;
-; AVX-LABEL: trunc8i16:
+; AVX-LABEL: trunc8i16_i64:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,u,u,u,u,u,u,u,u]
 ; AVX-NEXT:    vmovq %xmm0, %rax
 ; AVX-NEXT:    retq
-
-
-
-
 entry:
   %0 = trunc <8 x i16> %inval to <8 x i8>
   %1 = bitcast <8 x i8> %0 to i64
   ret i64 %1
 }
 
-define <16 x i8> @trunc16i64_const() {
-; SSE-LABEL: trunc16i64_const:
+define <16 x i8> @trunc16i64_16i8_const() {
+; SSE-LABEL: trunc16i64_16i8_const:
 ; SSE:       # BB#0: # %entry
 ; SSE-NEXT:    xorps %xmm0, %xmm0
 ; SSE-NEXT:    retq
 ;
-; AVX-LABEL: trunc16i64_const:
+; AVX-LABEL: trunc16i64_16i8_const:
 ; AVX:       # BB#0: # %entry
 ; AVX-NEXT:    vxorps %xmm0, %xmm0, %xmm0
 ; AVX-NEXT:    retq