1 files changed, 34 insertions, 0 deletions
diff --git a/test/msan/chained_origin_empty_stack.cc b/test/msan/chained_origin_empty_stack.cc
new file mode 100644
index 000000000000..36727e3d7aa7
--- /dev/null
+++ b/test/msan/chained_origin_empty_stack.cc
@@ -0,0 +1,34 @@
+// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -m64 -O3 %s -o %t && \
+// RUN:     MSAN_OPTIONS=store_context_size=1 not %run %t 2>&1 | FileCheck %s
+
+// Test that stack trace for the intermediate store is not empty.
+
+// CHECK: MemorySanitizer: use-of-uninitialized-value
+// CHECK:   #0 {{.*}} in main
+
+// CHECK: Uninitialized value was stored to memory at
+// CHECK:   #0 {{.*}} in fn_g
+// CHECK-NOT: #1
+
+// CHECK: Uninitialized value was created by an allocation of 'z' in the stack frame of function 'main'
+// CHECK:   #0 {{.*}} in main
+
+#include <stdio.h>
+
+volatile int x;
+
+__attribute__((noinline))
+void fn_g(int a) {
+  x = a;
+}
+
+__attribute__((noinline))
+void fn_f(int a) {
+  fn_g(a);
+}
+
+int main(int argc, char *argv[]) {
+  int volatile z;
+  fn_f(z);
+  return x;
+}