+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
+
+; CHECK: vmovsldup
+define <8 x float> @movdupA(<8 x float> %src) nounwind uwtable readnone ssp {
+entry:
+ %shuffle.i = shufflevector <8 x float> %src, <8 x float> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6>
+ ret <8 x float> %shuffle.i
+}
+
+; CHECK: vmovshdup
+define <8 x float> @movdupB(<8 x float> %src) nounwind uwtable readnone ssp {
+entry:
+ %shuffle.i = shufflevector <8 x float> %src, <8 x float> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7>
+ ret <8 x float> %shuffle.i
+}
+
+; CHECK: vmovsldup
+define <4 x i64> @movdupC(<4 x i64> %src) nounwind uwtable readnone ssp {
+entry:
+ %0 = bitcast <4 x i64> %src to <8 x float>
+ %shuffle.i = shufflevector <8 x float> %0, <8 x float> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6>
+ %1 = bitcast <8 x float> %shuffle.i to <4 x i64>
+ ret <4 x i64> %1
+}
+
+; CHECK: vmovshdup
+define <4 x i64> @movdupD(<4 x i64> %src) nounwind uwtable readnone ssp {
+entry:
+ %0 = bitcast <4 x i64> %src to <8 x float>
+ %shuffle.i = shufflevector <8 x float> %0, <8 x float> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7>
+ %1 = bitcast <8 x float> %shuffle.i to <4 x i64>
+ ret <4 x i64> %1
+}
+