1 files changed, 5 insertions, 0 deletions
diff --git a/compiler-rt/lib/tsan/rtl/tsan_vector.h b/compiler-rt/lib/tsan/rtl/tsan_vector.h
index 64328d0b5b0..fa236b1f1e4 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_vector.h
+++ b/compiler-rt/lib/tsan/rtl/tsan_vector.h
@@ -64,6 +64,11 @@ class Vector {
     return &end_[-1];
   }
 
+  void PopBack() {
+    DCHECK_GT(end_, begin_);
+    end_--;
+  }
+
   void Resize(uptr size) {
     uptr old_size = Size();
     EnsureSize(size);