[Sanitizer] Protect against compiler-inserted memcpy() in InternalMmapVector::push_ba...

llvm-svn: 261909

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.h b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
index f997f92..7fb8c2e 100644 (file)
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
@@ -510,7 +510,7 @@ class InternalMmapVectorNoCtor {
       uptr new_capacity = RoundUpToPowerOfTwo(size_ + 1);
       Resize(new_capacity);
     }
-    data_[size_++] = element;
+    internal_memcpy(&data_[size_++], &element, sizeof(T));
   }
   T &back() {
     CHECK_GT(size_, 0);