[llvm] [IR] Add llvm `clmul` intrinsic (PR #140301)

[Craig Topper via llvm-commits]

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@@ -7188,6 +7188,16 @@ void SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I,
     }
     return;
   }
+  case Intrinsic::clmul: {
+    SDValue Op1 = getValue(I.getArgOperand(0));
+    SDValue Op2 = getValue(I.getArgOperand(1));
+    EVT VT =  Op1.getValueType();
+    assert(VT.isInteger() && "This operator does not apply to FP types!");
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topperc wrote:

The asserts should be in getNode in SelectionDAG.cpp

https://github.com/llvm/llvm-project/pull/140301