From 262f05bab07bde0d59e2a19493d8ffc86cddd37c Mon Sep 17 00:00:00 2001
From: Alexey Samsonov <samsonov@google.com>
Date: Tue, 2 Apr 2013 13:19:46 +0000
Subject: [ASan] Emit lifetime markers for local variables in
 -fsanitize=use-after-scope mode

llvm-svn: 178538
---
 clang/test/CodeGen/sanitize-use-after-scope.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 clang/test/CodeGen/sanitize-use-after-scope.c

(limited to 'clang/test/CodeGen/sanitize-use-after-scope.c')

diff --git a/clang/test/CodeGen/sanitize-use-after-scope.c b/clang/test/CodeGen/sanitize-use-after-scope.c
new file mode 100644
index 00000000000..8f920385bc2
--- /dev/null
+++ b/clang/test/CodeGen/sanitize-use-after-scope.c
@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -S -emit-llvm -o - -fsanitize=address,use-after-scope %s \
+// RUN:     | FileCheck %s -check-prefix=USE-AFTER-SCOPE
+// RUN: %clang_cc1 -S -emit-llvm -o - -fsanitize=address %s \
+// RUN:     | FileCheck %s -check-prefix=ADDRESS-ONLY
+
+extern int bar(char *A, int n);
+
+// ADDRESS-ONLY-NOT: @llvm.lifetime.start
+int foo (int n) {
+  if (n) {
+    // USE-AFTER-SCOPE: @llvm.lifetime.start(i64 10, i8* {{.*}})
+    char A[10];
+    return bar(A, 1);
+    // USE-AFTER-SCOPE: @llvm.lifetime.end(i64 10, i8* {{.*}})
+  } else {
+    // USE-AFTER-SCOPE: @llvm.lifetime.start(i64 20, i8* {{.*}})
+    char A[20];
+    return bar(A, 2);
+    // USE-AFTER-SCOPE: @llvm.lifetime.end(i64 20, i8* {{.*}})
+  }
+}
+
-- 
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