Fix unused variable warnings. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316964 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 0e0b83fd8754f71378a2f146f347348799ca3531..5a9e798958aff3c181c6f63e1d693241327e7dda 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2582,7 +2582,6 @@ void SelectionDAG::computeKnownBits(SDValue Op, KnownBits &Known,
   }
   // TODO ISD::SIGN_EXTEND_VECTOR_INREG
   case ISD::SIGN_EXTEND: {
-    EVT InVT = Op.getOperand(0).getValueType();
     computeKnownBits(Op.getOperand(0), Known, DemandedElts, Depth + 1);
     // If the sign bit is known to be zero or one, then sext will extend
     // it to the top bits, else it will just zext.
@@ -2590,13 +2589,11 @@ void SelectionDAG::computeKnownBits(SDValue Op, KnownBits &Known,
     break;
   }
   case ISD::ANY_EXTEND: {
-    EVT InVT = Op.getOperand(0).getValueType();
     computeKnownBits(Op.getOperand(0), Known, Depth+1);
     Known = Known.zext(BitWidth);
     break;
   }
   case ISD::TRUNCATE: {
-    EVT InVT = Op.getOperand(0).getValueType();
     computeKnownBits(Op.getOperand(0), Known, DemandedElts, Depth + 1);
     Known = Known.trunc(BitWidth);
     break;