[llvm] [SelectionDAG] Support integer promotion for VP_LOAD and VP_STORE (PR #81299)

[Craig Topper via llvm-commits]

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@@ -2216,6 +2242,50 @@ SDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){
                            N->getMemoryVT(), N->getMemOperand());
 }
 
+SDValue DAGTypeLegalizer::PromoteIntOp_VP_STORE(VPStoreSDNode *N,
+                                                unsigned OpNo) {
+  SDValue DataOp = N->getValue();
+  SDValue Operand = N->getOperand(OpNo);
+
+  if (OpNo >= 4) {
+    // The Mask or EVL. Update in place.
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topperc wrote:

I suspect this is untested too.

https://github.com/llvm/llvm-project/pull/81299