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

[Mel Chen via llvm-commits]

================
@@ -1027,6 +1027,10 @@ InstructionCost VPWidenIntrinsicRecipe::computeCost(ElementCount VF,
   for (const auto &[Idx, Op] : enumerate(operands())) {
     auto *V = Op->getUnderlyingValue();
     if (!V) {
+      if (VPIntrinsic::isVPIntrinsic(VectorIntrinsicID)) {
+        Arguments.push_back(V);
+        break;
+      }
----------------
Mel-Chen wrote:

Why gather the nullptr into Arguments for vp intrinsic only?
Is it for the all-true mask, or for other reasons?

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