[llvm] [LV][EVL] Support call instruction with EVL-vectorization (PR #110412)

[via llvm-commits]

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@@ -1023,6 +1038,18 @@ InstructionCost VPWidenIntrinsicRecipe::computeCost(ElementCount VF,
   // clear Arguments.
   // TODO: Rework TTI interface to be independent of concrete IR values.
   SmallVector<const Value *> Arguments;
+
+  Intrinsic::ID FID = VectorIntrinsicID;
+  unsigned NumOperands = getNumOperands();
+  if (VPIntrinsic::isVPIntrinsic(VectorIntrinsicID)) {
+    std::optional<Intrinsic::ID> ID =
+        VPIntrinsic::getFunctionalIntrinsicIDForVP(VectorIntrinsicID);
+    if (ID) {
+      FID = ID.value();
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LiqinWeng wrote:

1. After the VP instruction adds the EVL parameter through the VPTransform process, Arguments will be cleared and will fall Into BasicTTIImpl, which will check if the VP intrinsic is a type based instruction. All type based instruction will fall into the getTypeBasedIntrinsicInstrCost
2. VP Intrinsics should have the same cost as their non-vp counterpart
3. To ensure the accuracy of the CostAttrs parameters passed to TTI, such as the number of parameters, parameter type, ID, etc.

https://github.com/llvm/llvm-project/pull/110412