diff --git a/llvm/test/MC/X86/padlock.s b/llvm/test/MC/X86/padlock.s
--- a/llvm/test/MC/X86/padlock.s
+++ b/llvm/test/MC/X86/padlock.s
@@ -3,3 +3,27 @@
 	xstore
 // CHECK: xstore
 // CHECK: encoding: [0xf3,0x0f,0xa7,0xc0]
+	xcryptecb
+// CHECK: xcryptecb
+// CHECK: encoding: [0xf3,0x0f,0xa7,0xc8]
+	xcryptcbc
+// CHECK: xcryptcbc
+// CHECK: encoding: [0xf3,0x0f,0xa7,0xd0]
+	xcryptctr
+// CHECK: xcryptctr
+// CHECK: encoding: [0xf3,0x0f,0xa7,0xd8]
+	xcryptcfb
+// CHECK: xcryptcfb
+// CHECK: encoding: [0xf3,0x0f,0xa7,0xe0]
+	xcryptofb
+// CHECK: xcryptofb
+// CHECK: encoding: [0xf3,0x0f,0xa7,0xe8]
+	xsha1
+// CHECK: xsha1
+// CHECK: encoding: [0xf3,0x0f,0xa6,0xc8]
+	xsha256
+// CHECK: xsha256
+// CHECK: encoding: [0xf3,0x0f,0xa6,0xd0]
+	montmul
+// CHECK: montmul
+// CHECK: encoding: [0xf3,0x0f,0xa6,0xc0]