fix typo assernofpclass

Author: wzssyqa

llvm/include/llvm/Target/TargetSelectionDAG.td

@@ -859,7 +859,7 @@ def SDT_assert : SDTypeProfile<1, 1,
   [SDTCisInt<0>, SDTCisInt<1>, SDTCisSameAs<1, 0>]>;
 def assertsext : SDNode<"ISD::AssertSext", SDT_assert>;
 def assertzext : SDNode<"ISD::AssertZext", SDT_assert>;
-def assernofpclass : SDNode<"ISD::AssertNoFPClass", SDTFPUnaryOp>;
+def assertnofpclass : SDNode<"ISD::AssertNoFPClass", SDTFPUnaryOp>;
 def assertalign : SDNode<"ISD::AssertAlign", SDT_assert>;
 
 def convergencectrl_anchor : SDNode<"ISD::CONVERGENCECTRL_ANCHOR",