diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 950b43b34f4..362852f5aa3 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -10094,12 +10094,12 @@ static SDValue lowerV2X128VectorShuffle(SDLoc DL, MVT VT, SDValue V1,
                                VT.getVectorNumElements() / 2);
   // Check for patterns which can be matched with a single insert of a 128-bit
   // subvector.
-  if (isShuffleEquivalent(Mask, 0, 1, 0, 1) ||
-      isShuffleEquivalent(Mask, 0, 1, 4, 5)) {
+  bool OnlyUsesV1 = isShuffleEquivalent(Mask, 0, 1, 0, 1);
+  if (OnlyUsesV1 || isShuffleEquivalent(Mask, 0, 1, 4, 5)) {
     SDValue LoV = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, SubVT, V1,
                               DAG.getIntPtrConstant(0));
     SDValue HiV = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, SubVT,
-                              Mask[2] < 4 ? V1 : V2, DAG.getIntPtrConstant(0));
+                              OnlyUsesV1 ? V1 : V2, DAG.getIntPtrConstant(0));
     return DAG.getNode(ISD::CONCAT_VECTORS, DL, VT, LoV, HiV);
   }
   if (isShuffleEquivalent(Mask, 0, 1, 6, 7)) {
diff --git a/test/CodeGen/X86/lower-vec-shuffle-bug.ll b/test/CodeGen/X86/lower-vec-shuffle-bug.ll
new file mode 100644
index 00000000000..5918e8045f6
--- /dev/null
+++ b/test/CodeGen/X86/lower-vec-shuffle-bug.ll
@@ -0,0 +1,41 @@
+; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx < %s | FileCheck %s
+
+define <4 x double> @test1(<4 x double> %A, <4 x double> %B) {
+; CHECK-LABEL: test1:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+entry:
+  %0 = shufflevector <4 x double> %A, <4 x double> %B, <4 x i32> <i32 undef, i32 1, i32 undef, i32 5>
+  ret <4 x double> %0
+}
+
+define <4 x double> @test2(<4 x double> %A, <4 x double> %B) {
+; CHECK-LABEL: test2:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+entry:
+  %0 = shufflevector <4 x double> %A, <4 x double> %B, <4 x i32> <i32 undef, i32 1, i32 undef, i32 1>
+  ret <4 x double> %0
+}
+
+define <4 x double> @test3(<4 x double> %A, <4 x double> %B) {
+; CHECK-LABEL: test3:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+entry:
+  %0 = shufflevector <4 x double> %A, <4 x double> %B, <4 x i32> <i32 0, i32 1, i32 undef, i32 5>
+  ret <4 x double> %0
+}
+
+define <4 x double> @test4(<4 x double> %A, <4 x double> %B) {
+; CHECK-LABEL: test4:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+entry:
+  %0 = shufflevector <4 x double> %A, <4 x double> %B, <4 x i32> <i32 0, i32 1, i32 undef, i32 1>
+  ret <4 x double> %0
+}