diff --git a/compiler-rt/test/tsan/signal_malloc.cpp b/compiler-rt/test/tsan/signal_malloc.cpp
--- a/compiler-rt/test/tsan/signal_malloc.cpp
+++ b/compiler-rt/test/tsan/signal_malloc.cpp
@@ -10,6 +10,10 @@
   // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler
   volatile char *p = (char*)malloc(1);
   p[0] = 0;
+  // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal
+  // CHECK:     #0 free
+  // CHECK:     #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cpp:[[@LINE+2]]
+  // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler
   free((void*)p);
 }
 
@@ -19,6 +23,8 @@
   sigaction(SIGPROF, &act, 0);
   kill(getpid(), SIGPROF);
   sleep(1);  // let the signal handler run
+  fprintf(stderr, "DONE\n");
+  // CHECK: DONE
   return 0;
 }