--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compiler-rt/test/dfsan/origin_branch.c	Tue Jun 15 19:15:29 2021 +0900
@@ -0,0 +1,29 @@
+// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 -mllvm -dfsan-fast-16-labels=true %s -o %t && \
+// RUN:     %run %t >%t.out 2>&1
+// RUN: FileCheck %s --check-prefix=CHECK < %t.out
+//
+// REQUIRES: x86_64-target-arch
+
+#include <sanitizer/dfsan_interface.h>
+
+__attribute__((noinline)) uint64_t foo(uint64_t x, uint64_t y) { return x + y; }
+
+int main(int argc, char *argv[]) {
+  uint64_t a = 10;
+  uint64_t b = 20;
+  dfsan_set_label(8, &a, sizeof(a));
+  uint64_t c = foo(a, b);
+  for (int i = 0; i < argc; ++i)
+    c += foo(c, b);
+  dfsan_print_origin_trace(&c, NULL);
+}
+
+// CHECK: Taint value 0x8 {{.*}} origin tracking ()
+// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
+// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-6]]
+
+// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
+// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-11]]
+
+// CHECK: Origin value: {{.*}}, Taint value was created at
+// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-15]]