[llvm] [ISel/RISCV] Migrate llvm.riscv.clmul to llvm.clmul (PR #174749)

[Craig Topper via llvm-commits]

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@@ -8289,6 +8301,15 @@ SDValue RISCVTargetLowering::LowerOperation(SDValue Op,
     return DAG.getNode(Op.getOpcode(), DL, {Op.getValueType(), MVT::Other},
                        {Ext.getValue(1), Ext.getValue(0)});
   }
+  case ISD::CLMUL:
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topperc wrote:

This codes doesn't do anything. It just replaces the node with itself.

https://github.com/llvm/llvm-project/pull/174749