diff --git a/llvm/include/llvm/CodeGen/MachineConstantPool.h b/llvm/include/llvm/CodeGen/MachineConstantPool.h
--- a/llvm/include/llvm/CodeGen/MachineConstantPool.h
+++ b/llvm/include/llvm/CodeGen/MachineConstantPool.h
@@ -41,10 +41,10 @@
   explicit MachineConstantPoolValue(Type *ty) : Ty(ty) {}
   virtual ~MachineConstantPoolValue() = default;
 
-  /// getType - get type of this MachineConstantPoolValue.
-  ///
   Type *getType() const { return Ty; }
 
+  virtual unsigned getSizeInBytes(const DataLayout &DL) const;
+
   virtual int getExistingMachineCPValue(MachineConstantPool *CP,
                                         Align Alignment) = 0;
 
@@ -94,7 +94,7 @@
 
   Align getAlign() const { return Alignment; }
 
-  Type *getType() const;
+  unsigned getSizeInBytes(const DataLayout &DL) const;
 
   /// This method classifies the entry according to whether or not it may
   /// generate a relocation entry.  This must be conservative, so if it might
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1972,8 +1972,7 @@
       unsigned NewOffset = alignTo(Offset, CPE.getAlign());
       OutStreamer->emitZeros(NewOffset - Offset);
 
-      Type *Ty = CPE.getType();
-      Offset = NewOffset + getDataLayout().getTypeAllocSize(Ty);
+      Offset = NewOffset + CPE.getSizeInBytes(getDataLayout());
 
       OutStreamer->emitLabel(Sym);
       if (CPE.isMachineConstantPoolEntry())
diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp
--- a/llvm/lib/CodeGen/MachineFunction.cpp
+++ b/llvm/lib/CodeGen/MachineFunction.cpp
@@ -1107,10 +1107,14 @@
 
 void MachineConstantPoolValue::anchor() {}
 
-Type *MachineConstantPoolEntry::getType() const {
+unsigned MachineConstantPoolValue::getSizeInBytes(const DataLayout &DL) const {
+  return DL.getTypeAllocSize(Ty);
+}
+
+unsigned MachineConstantPoolEntry::getSizeInBytes(const DataLayout &DL) const {
   if (isMachineConstantPoolEntry())
-    return Val.MachineCPVal->getType();
-  return Val.ConstVal->getType();
+    return Val.MachineCPVal->getSizeInBytes(DL);
+  return DL.getTypeAllocSize(Val.ConstVal->getType());
 }
 
 bool MachineConstantPoolEntry::needsRelocation() const {
@@ -1123,7 +1127,7 @@
 MachineConstantPoolEntry::getSectionKind(const DataLayout *DL) const {
   if (needsRelocation())
     return SectionKind::getReadOnlyWithRel();
-  switch (DL->getTypeAllocSize(getType())) {
+  switch (getSizeInBytes(*DL)) {
   case 4:
     return SectionKind::getMergeableConst4();
   case 8:
diff --git a/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp b/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
--- a/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -514,7 +514,7 @@
 
   const DataLayout &TD = MF->getDataLayout();
   for (unsigned i = 0, e = CPs.size(); i != e; ++i) {
-    unsigned Size = TD.getTypeAllocSize(CPs[i].getType());
+    unsigned Size = CPs[i].getSizeInBytes(TD);
     Align Alignment = CPs[i].getAlign();
     // Verify that all constant pool entries are a multiple of their alignment.
     // If not, we would have to pad them out so that instructions stay aligned.
diff --git a/llvm/lib/Target/Mips/MipsConstantIslandPass.cpp b/llvm/lib/Target/Mips/MipsConstantIslandPass.cpp
--- a/llvm/lib/Target/Mips/MipsConstantIslandPass.cpp
+++ b/llvm/lib/Target/Mips/MipsConstantIslandPass.cpp
@@ -552,7 +552,7 @@
 
   const DataLayout &TD = MF->getDataLayout();
   for (unsigned i = 0, e = CPs.size(); i != e; ++i) {
-    unsigned Size = TD.getTypeAllocSize(CPs[i].getType());
+    unsigned Size = CPs[i].getSizeInBytes(TD);
     assert(Size >= 4 && "Too small constant pool entry");
     Align Alignment = CPs[i].getAlign();
     // Verify that all constant pool entries are a multiple of their alignment.
diff --git a/llvm/lib/Target/X86/X86MCInstLower.cpp b/llvm/lib/Target/X86/X86MCInstLower.cpp
--- a/llvm/lib/Target/X86/X86MCInstLower.cpp
+++ b/llvm/lib/Target/X86/X86MCInstLower.cpp
@@ -1784,10 +1784,7 @@
   if (ConstantEntry.isMachineConstantPoolEntry())
     return nullptr;
 
-  const Constant *C = ConstantEntry.Val.ConstVal;
-  assert((!C || ConstantEntry.getType() == C->getType()) &&
-         "Expected a constant of the same type!");
-  return C;
+  return ConstantEntry.Val.ConstVal;
 }
 
 static std::string getShuffleComment(const MachineInstr *MI, unsigned SrcOp1Idx,