Import compiler-rt release_34 branch r197381.vendor/compiler-rt/compiler-rt-r197381

https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197381

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/tsan/lit_tests/halt_on_error.cc b/lib/tsan/lit_tests/halt_on_error.cc
new file mode 100644
index 000000000000..fddaffff29aa
--- /dev/null
+++ b/lib/tsan/lit_tests/halt_on_error.cc
@@ -0,0 +1,25 @@
+// RUN: %clang_tsan -O1 %s -o %t && TSAN_OPTIONS="$TSAN_OPTIONS halt_on_error=1" not %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdio.h>
+
+int X;
+
+void *Thread(void *x) {
+  X = 42;
+  return 0;
+}
+
+int main() {
+  fprintf(stderr, "BEFORE\n");
+  pthread_t t;
+  pthread_create(&t, 0, Thread, 0);
+  X = 43;
+  pthread_join(t, 0);
+  fprintf(stderr, "AFTER\n");
+  return 0;
+}
+
+// CHECK: BEFORE
+// CHECK: WARNING: ThreadSanitizer: data race
+// CHECK-NOT: AFTER
+