diff --git a/llvm/include/llvm/IR/IRBuilder.h b/llvm/include/llvm/IR/IRBuilder.h
--- a/llvm/include/llvm/IR/IRBuilder.h
+++ b/llvm/include/llvm/IR/IRBuilder.h
@@ -657,20 +657,40 @@
   /// specified, it will be added to the instruction. Likewise with alias.scope
   /// and noalias tags.
   CallInst *CreateElementUnorderedAtomicMemMove(
-      Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign,
-      uint64_t Size, uint32_t ElementSize, MDNode *TBAATag = nullptr,
+      Value *Dst, Align DstAlign, Value *Src, Align SrcAlign, Value *Size,
+      uint32_t ElementSize, MDNode *TBAATag = nullptr,
       MDNode *TBAAStructTag = nullptr, MDNode *ScopeTag = nullptr,
-      MDNode *NoAliasTag = nullptr) {
+      MDNode *NoAliasTag = nullptr);
+
+  /// FIXME: Remove this function once transition to Align is over.
+  /// Use the version that takes Align instead of this one.
+  LLVM_ATTRIBUTE_DEPRECATED(CallInst *CreateElementUnorderedAtomicMemMove(
+                                Value *Dst, unsigned DstAlign, Value *Src,
+                                unsigned SrcAlign, uint64_t Size,
+                                uint32_t ElementSize, MDNode *TBAATag = nullptr,
+                                MDNode *TBAAStructTag = nullptr,
+                                MDNode *ScopeTag = nullptr,
+                                MDNode *NoAliasTag = nullptr),
+                            "Use the version that takes Align instead") {
     return CreateElementUnorderedAtomicMemMove(
-        Dst, DstAlign, Src, SrcAlign, getInt64(Size), ElementSize, TBAATag,
-        TBAAStructTag, ScopeTag, NoAliasTag);
+        Dst, Align(DstAlign), Src, Align(SrcAlign), getInt64(Size), ElementSize,
+        TBAATag, TBAAStructTag, ScopeTag, NoAliasTag);
   }
 
-  CallInst *CreateElementUnorderedAtomicMemMove(
-      Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign, Value *Size,
-      uint32_t ElementSize, MDNode *TBAATag = nullptr,
-      MDNode *TBAAStructTag = nullptr, MDNode *ScopeTag = nullptr,
-      MDNode *NoAliasTag = nullptr);
+  /// FIXME: Remove this function once transition to Align is over.
+  /// Use the version that takes Align instead of this one.
+  LLVM_ATTRIBUTE_DEPRECATED(CallInst *CreateElementUnorderedAtomicMemMove(
+                                Value *Dst, unsigned DstAlign, Value *Src,
+                                unsigned SrcAlign, Value *Size,
+                                uint32_t ElementSize, MDNode *TBAATag = nullptr,
+                                MDNode *TBAAStructTag = nullptr,
+                                MDNode *ScopeTag = nullptr,
+                                MDNode *NoAliasTag = nullptr),
+                            "Use the version that takes Align instead") {
+    return CreateElementUnorderedAtomicMemMove(
+        Dst, Align(DstAlign), Src, Align(SrcAlign), Size, ElementSize, TBAATag,
+        TBAAStructTag, ScopeTag, NoAliasTag);
+  }
 
   /// Create a vector fadd reduction intrinsic of the source vector.
   /// The first parameter is a scalar accumulator value for ordered reductions.
diff --git a/llvm/lib/IR/IRBuilder.cpp b/llvm/lib/IR/IRBuilder.cpp
--- a/llvm/lib/IR/IRBuilder.cpp
+++ b/llvm/lib/IR/IRBuilder.cpp
@@ -276,7 +276,7 @@
 }
 
 CallInst *IRBuilderBase::CreateElementUnorderedAtomicMemMove(
-    Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign, Value *Size,
+    Value *Dst, Align DstAlign, Value *Src, Align SrcAlign, Value *Size,
     uint32_t ElementSize, MDNode *TBAATag, MDNode *TBAAStructTag,
     MDNode *ScopeTag, MDNode *NoAliasTag) {
   assert(DstAlign >= ElementSize &&
@@ -295,10 +295,8 @@
   CallInst *CI = createCallHelper(TheFn, Ops, this);
 
   // Set the alignment of the pointer args.
-  CI->addParamAttr(
-      0, Attribute::getWithAlignment(CI->getContext(), Align(DstAlign)));
-  CI->addParamAttr(
-      1, Attribute::getWithAlignment(CI->getContext(), Align(SrcAlign)));
+  CI->addParamAttr(0, Attribute::getWithAlignment(CI->getContext(), DstAlign));
+  CI->addParamAttr(1, Attribute::getWithAlignment(CI->getContext(), SrcAlign));
 
   // Set the TBAA info if present.
   if (TBAATag)