1 files changed, 42 insertions, 0 deletions
diff --git a/test/CodeGenCXX/lifetime-asan.cpp b/test/CodeGenCXX/lifetime-asan.cpp
new file mode 100644
index 000000000000..9ccb28c876a1
--- /dev/null
+++ b/test/CodeGenCXX/lifetime-asan.cpp
@@ -0,0 +1,42 @@
+// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -fno-exceptions -O0 %s | FileCheck %s -check-prefixes=CHECK,CHECK-O0 --implicit-check-not=llvm.lifetime
+// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -fno-exceptions -O0 \
+// RUN:     -fsanitize=address -fsanitize-address-use-after-scope %s | \
+// RUN:     FileCheck %s -check-prefixes=CHECK,CHECK-ASAN-USE-AFTER-SCOPE
+
+extern int bar(char *A, int n);
+
+struct X { X(); ~X(); int *p; };
+struct Y { Y(); int *p; };
+
+extern "C" void a(), b(), c(), d();
+
+// CHECK-LABEL: @_Z3foo
+void foo(int n) {
+  // CHECK: call void @a()
+  a();
+
+  // CHECK: call void @b()
+  // CHECK-ASAN-USE-AFTER-SCOPE: store i1 false
+  // CHECK-ASAN-USE-AFTER-SCOPE: store i1 false
+  // CHECK: br i1
+  //
+  // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start
+  // CHECK-ASAN-USE-AFTER-SCOPE: store i1 true
+  // CHECK: call void @_ZN1XC
+  // CHECK: br label
+  //
+  // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start
+  // CHECK-ASAN-USE-AFTER-SCOPE: store i1 true
+  // CHECK: call void @_ZN1YC
+  // CHECK: br label
+  //
+  // CHECK: call void @c()
+  // CHECK-ASAN-USE-AFTER-SCOPE: br i1
+  // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end
+  // CHECK-ASAN-USE-AFTER-SCOPE: br i1
+  // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end
+  b(), (n ? X().p : Y().p), c();
+
+  // CHECK: call void @d()
+  d();
+}