add first attempt at SelectionDAG.cpp for u/scmp

Author: miguelraz

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

@@ -6750,12 +6750,18 @@ SDValue SelectionDAG::getNode(unsigned Opcode, const SDLoc &DL, EVT VT,
     if (VT.isVector() && VT.getVectorElementType() == MVT::i1)
       return getNode(ISD::AND, DL, VT, N1, N2);
     break;
-  case ISD::FADD:
-  case ISD::FSUB:
-  case ISD::FMUL:
-  case ISD::FDIV:
-  case ISD::FREM:
-    assert(VT.isFloatingPoint() && "This operator only applies to FP types!");
+  case ISD::UCMP:
+  case ISD::SCMP:
+    assert(VT.isInteger() && "This operator doe snot apply to FP types!");
+    assert(N1.getValueType() == N2.getValueType() && 
+           N1.getValueType() == VT && "Binary operator types must match");
+      break;
+    case ISD::FADD:
+    case ISD::FSUB:
+    case ISD::FMUL:
+    case ISD::FDIV:
+    case ISD::FREM:
+      assert(VT.isFloatingPoint() && "This operator only applies to FP types!");
     assert(N1.getValueType() == N2.getValueType() &&
            N1.getValueType() == VT && "Binary operator types must match!");
     if (SDValue V = simplifyFPBinop(Opcode, N1, N2, Flags))