1 files changed, 31 insertions, 0 deletions
diff --git a/test/msan/stack-origin.cc b/test/msan/stack-origin.cc
new file mode 100644
index 0000000000000..c39c3a8cf6d05
--- /dev/null
+++ b/test/msan/stack-origin.cc
@@ -0,0 +1,31 @@
+// 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
+
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O1 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O2 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O3 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+
+#include <stdlib.h>
+int main(int argc, char **argv) {
+  int x;
+  int *volatile p = &x;
+  return *p;
+  // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
+  // CHECK: {{#0 0x.* in main .*stack-origin.cc:}}[[@LINE-2]]
+
+  // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main'
+  // CHECK-ORIGINS: {{#0 0x.* in main .*stack-origin.cc:}}[[@LINE-8]]
+
+  // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin.cc:.* main}}
+}