diff --git a/test/CodeGen/X86/mcinst-avx-lowering.ll b/test/CodeGen/X86/mcinst-avx-lowering.ll
new file mode 100644
index 00000000000..41f96e8856c
--- /dev/null
+++ b/test/CodeGen/X86/mcinst-avx-lowering.ll
@@ -0,0 +1,19 @@
+; RUN: llc -mtriple=x86_64-apple-macosx10 -mattr=avx -show-mc-encoding < %s | FileCheck %s
+
+define i64 @t1(double %d_ivar) nounwind uwtable ssp {
+entry:
+; CHECK: t1
+  %0 = bitcast double %d_ivar to i64
+; CHECK: vmovd
+; CHECK: encoding: [0xc4,0xe1,0xf9,0x7e,0xc0]
+  ret i64 %0
+}
+
+define double @t2(i64 %d_ivar) nounwind uwtable ssp {
+entry:
+; CHECK: t2
+  %0 = bitcast i64 %d_ivar to double
+; CHECK: vmovd
+; CHECK: encoding: [0xc4,0xe1,0xf9,0x6e,0xc7]
+  ret double %0
+}