--- a/test/CodeGen/X86/memcmp.ll	Tue Jan 26 22:56:36 2016 +0900
+++ b/test/CodeGen/X86/memcmp.ll	Fri Nov 25 19:14:25 2016 +0900
@@ -23,8 +23,7 @@
   ret void
 ; CHECK-LABEL: memcmp2:
 ; CHECK: movzwl
-; CHECK-NEXT: movzwl
-; CHECK-NEXT: cmpl
+; CHECK-NEXT: cmpw
 ; NOBUILTIN-LABEL: memcmp2:
 ; NOBUILTIN: callq
 }
@@ -46,6 +45,21 @@
 ; CHECK-NEXT: cmpl    $28527,
 }
 
+define void @memcmp2nb(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+entry:
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 2) nounwind nobuiltin ; <i32> [#uses=1]
+  %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
+  br i1 %1, label %return, label %bb
+
+bb:                                               ; preds = %entry
+  store i32 4, i32* %P, align 4
+  ret void
+
+return:                                           ; preds = %entry
+  ret void
+; CHECK-LABEL: memcmp2nb:
+; CHECK: callq
+}
 
 define void @memcmp4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
 entry: