[asan] Add a test for stack unwinding in new and delete.

llvm-svn: 201511

diff --git a/compiler-rt/test/asan/TestCases/use-after-delete.cc b/compiler-rt/test/asan/TestCases/use-after-delete.cc
new file mode 100644 (file)
index 0000000..92e172e
--- /dev/null
+++ b/compiler-rt/test/asan/TestCases/use-after-delete.cc
@@ -0,0 +1,29 @@
+// RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O1 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O2 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O3 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+
+#include <stdlib.h>
+int main() {
+  char * volatile x = new char[10];
+  delete[] x;
+  return x[5];
+  // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
+  // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
+  // CHECK: {{READ of size 1 at 0x.* thread T0}}
+  // CHECK: {{    #0 0x.* in main .*use-after-delete.cc:10}}
+  // CHECK: {{0x.* is located 5 bytes inside of 10-byte region .0x.*,0x.*}}
+  // CHECK: {{freed by thread T0 here:}}
+
+  // CHECK-Linux: {{    #0 0x.* in operator delete\[\]}}
+  // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:9}}
+
+  // CHECK: {{previously allocated by thread T0 here:}}
+
+  // CHECK-Linux: {{    #0 0x.* in operator new\[\]}}
+  // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:8}}
+
+  // CHECK: Shadow byte legend (one shadow byte represents 8 application bytes):
+  // CHECK: Global redzone:
+  // CHECK: ASan internal:
+}