Fix -Wunused-variable for non-assert build.

llvm-svn: 281069

Author: rui314

llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp

@@ -165,7 +165,6 @@ MachineLegalizeHelper::LegalizeResult
 MachineLegalizeHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx,
                                    LLT WideTy) {
   LLT Ty = MRI.getType(MI.getOperand(0).getReg());
-  unsigned WideSize = WideTy.getSizeInBits();
   MIRBuilder.setInstr(MI);
 
   switch (MI.getOpcode()) {
@@ -220,7 +219,7 @@ MachineLegalizeHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx,
     return Legalized;
   }
   case TargetOpcode::G_LOAD: {
-    assert(alignTo(Ty.getSizeInBits(), 8) == WideSize &&
+    assert(alignTo(Ty.getSizeInBits(), 8) == WideTy.getSizeInBits() &&
            "illegal to increase number of bytes loaded");
 
     unsigned DstExt = MRI.createGenericVirtualRegister(WideTy);
@@ -231,7 +230,7 @@ MachineLegalizeHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx,
     return Legalized;
   }
   case TargetOpcode::G_STORE: {
-    assert(alignTo(Ty.getSizeInBits(), 8) == WideSize &&
+    assert(alignTo(Ty.getSizeInBits(), 8) == WideTy.getSizeInBits() &&
            "illegal to increase number of bytes modified by a store");
 
     unsigned SrcExt = MRI.createGenericVirtualRegister(WideTy);