1 files changed, 22 insertions, 0 deletions
diff --git a/test/msan/select.cc b/test/msan/select.cc
new file mode 100644
index 000000000000..89de75ebaaef
--- /dev/null
+++ b/test/msan/select.cc
@@ -0,0 +1,22 @@
+// RUN: %clangxx_msan -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O1 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O2 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O3 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+
+#include <stdlib.h>
+int main(int argc, char **argv) {
+  int x;
+  int *volatile p = &x;
+  int z = *p ? 1 : 0;
+  if (z)
+    exit(0);
+  // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
+  // CHECK: {{#0 0x.* in main .*select.cc:}}[[@LINE-3]]
+
+  // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*select.cc:.* main}}
+  return 0;
+}