[X86] Remove dead code from EmitTest that looked for an i1 type which should have already been type legalized away. NFC

llvm-svn: 324536

llvm/lib/Target/X86/X86ISelLowering.cpp

@@ -17140,11 +17140,6 @@ static SDValue EmitKTEST(SDValue Op, SelectionDAG &DAG,
 /// equivalent.
 SDValue X86TargetLowering::EmitTest(SDValue Op, unsigned X86CC, const SDLoc &dl,
                                     SelectionDAG &DAG) const {
-  if (Op.getValueType() == MVT::i1) {
-    SDValue ExtOp = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i8, Op);
-    return DAG.getNode(X86ISD::CMP, dl, MVT::i32, ExtOp,
-                       DAG.getConstant(0, dl, MVT::i8));
-  }
   // CF and OF aren't always set the way we want. Determine which
   // of these we need.
   bool NeedCF = false;