diff --git a/llvm/lib/Analysis/MemoryBuiltins.cpp b/llvm/lib/Analysis/MemoryBuiltins.cpp
--- a/llvm/lib/Analysis/MemoryBuiltins.cpp
+++ b/llvm/lib/Analysis/MemoryBuiltins.cpp
@@ -334,8 +334,6 @@
 
 Value *llvm::getAllocAlignment(const CallBase *V,
                                const TargetLibraryInfo *TLI) {
-  assert(isAllocationFn(V, TLI));
-
   const Optional<AllocFnsTy> FnData = getAllocationData(V, AnyAlloc, TLI);
   if (FnData.hasValue() && FnData->AlignParam >= 0) {
     return V->getOperand(FnData->AlignParam);