diff --git a/lib/IR/Type.cpp b/lib/IR/Type.cpp
index 700f9391714..84956c2c9e5 100644
--- a/lib/IR/Type.cpp
+++ b/lib/IR/Type.cpp
@@ -674,12 +674,7 @@ PointerType *PointerType::get(Type *EltTy, unsigned AddressSpace) {
 
 PointerType::PointerType(Type *E, unsigned AddrSpace)
   : SequentialType(PointerTyID, E) {
-#ifndef NDEBUG
-  const unsigned oldNCT = NumContainedTys;
-#endif
   setSubclassData(AddrSpace);
-  // Check for miscompile. PR11652.
-  assert(oldNCT == NumContainedTys && "bitfield written out of bounds?");
 }
 
 PointerType *Type::getPointerTo(unsigned addrs) const {