added test file

llvm-svn: 242590

1 files changed, 48 insertions, 0 deletions

diff --git a/compiler-rt/test/msan/dtor-member.cc b/compiler-rt/test/msan/dtor-member.cc
new file mode 100644
index 00000000000..13a059947bc
--- /dev/null
+++ b/compiler-rt/test/msan/dtor-member.cc
@@ -0,0 +1,48 @@
+// RUN: %clangxx_msan %s -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+
+// RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+
+// RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1  %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+
+// RUN: %clangxx_msan %s -fsanitize=memory -o %t && MSAN_OPTIONS=poison_in_dtor=1  %run %t >%t.out 2>&1
+// RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out
+
+// RUN: %clangxx_msan -fsanitize=memory -fsanitize-memory-use-after-dtor %s -o %t && MSAN_OPTIONS=poison_in_dtor=0 %run %t >%t.out 2>&1
+// RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out
+
+#include <sanitizer/msan_interface.h>
+#include <assert.h>
+#include <stdio.h>
+#include <new>
+
+struct Simple {
+  int x_;
+  Simple() {
+    x_ = 5;
+  }
+  ~Simple() { }
+};
+
+int main() {
+  unsigned long buf[1];
+  assert(sizeof(Simple) <= sizeof(buf));
+
+  // The placement new operator forces the object to be constructed in the
+  // memory location &buf. Since objects made in this way must be explicitly
+  // destroyed, there are no implicit calls inserted that would interfere with
+  // test behavior.
+  Simple *s = new(&buf) Simple();
+  s->~Simple();
+
+  if (__msan_test_shadow(s, sizeof(*s)) != -1)
+    printf("s is poisoned\n");
+  else
+    printf("s is not poisoned\n");
+  // CHECK: s is poisoned
+  // CHECK-NO-FLAG: s is not poisoned
+
+  return 0;
+}