--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/CodeGenObjC/ubsan-nonnull.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -x objective-c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=nonnull-attribute %s -o - -w | FileCheck %s
+
+@interface A
+
+-(void) one_arg: (__attribute__((nonnull)) int *) arg1;
+
+-(void) varargs: (__attribute__((nonnull)) int *) arg1, ...;
+
++(void) clsmethod: (__attribute__((nonnull)) int *) arg1;
+
+@end
+
+@implementation A
+
+// CHECK-LABEL: define internal void @"\01-[A one_arg:]"
+// CHECK-SAME: i32* nonnull
+-(void) one_arg: (__attribute__((nonnull)) int *) arg1 {}
+
+// CHECK-LABEL: define internal void @"\01-[A varargs:]"
+// CHECK-SAME: i32* nonnull
+-(void) varargs: (__attribute__((nonnull)) int *) arg1, ... {}
+
+// CHECK-LABEL: define internal void @"\01+[A clsmethod:]"
+// CHECK-SAME: i32* nonnull
++(void) clsmethod: (__attribute__((nonnull)) int *) arg1 {}
+
+@end
+
+// CHECK-LABEL: define void @call_A
+void call_A(A *a, int *p) {
+  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P1:%.*]], null, !nosanitize
+  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
+  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
+  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P1]])
+  [a one_arg: p];
+
+  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P2:%.*]], null, !nosanitize
+  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
+  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
+  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P2]], {{.*}})
+  [a varargs: p, p];
+
+  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P3:%.*]], null, !nosanitize
+  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
+  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
+  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P3]])
+  [A clsmethod: p];
+}