check isValid for the memory type before comparing sizes

Author: jiahanxie353

llvm/lib/CodeGen/MachineOperand.cpp

@@ -1240,7 +1240,8 @@ void MachineMemOperand::print(raw_ostream &OS, ModuleSlotTracker &MST,
        << "unknown-address";
   }
   MachineOperand::printOperandOffset(OS, getOffset());
-  unsigned MinSize = getType().getSizeInBytes().getKnownMinValue();
+  uint64_t MinSize = MemoryType.isValid() ? getType().getSizeInBytes().getKnownMinValue() : ~UINT64_C(0);
+  // TODO: getSize should return TypeSize
   if (MinSize > 0 && getAlign() != MinSize)
     OS << ", align " << getAlign().value();
   if (getAlign() != getBaseAlign())