[DAGCombiner] Remove else after return. NFCI.

llvm-svn: 299022

diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 1bd9fd0..922947a 100644 (file)
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -4665,10 +4665,9 @@ const Optional<ByteProvider> calculateByteProvider(SDValue Op, unsigned Index,
 
     if (LHS->isConstantZero())
       return RHS;
-    else if (RHS->isConstantZero())
+    if (RHS->isConstantZero())
       return LHS;
-    else
-      return None;
+    return None;
   }
   case ISD::SHL: {
     auto ShiftOp = dyn_cast<ConstantSDNode>(Op->getOperand(1));
@@ -4698,8 +4697,7 @@ const Optional<ByteProvider> calculateByteProvider(SDValue Op, unsigned Index,
       return Op.getOpcode() == ISD::ZERO_EXTEND
                  ? Optional<ByteProvider>(ByteProvider::getConstantZero())
                  : None;
-    else
-      return calculateByteProvider(NarrowOp, Index, Depth + 1);
+    return calculateByteProvider(NarrowOp, Index, Depth + 1);
   }
   case ISD::BSWAP:
     return calculateByteProvider(Op->getOperand(0), ByteWidth - Index - 1,
@@ -4718,8 +4716,7 @@ const Optional<ByteProvider> calculateByteProvider(SDValue Op, unsigned Index,
       return L->getExtensionType() == ISD::ZEXTLOAD
                  ? Optional<ByteProvider>(ByteProvider::getConstantZero())
                  : None;
-    else
-      return ByteProvider::getMemory(L, Index);
+    return ByteProvider::getMemory(L, Index);
   }
   }