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

[via llvm-commits]

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@@ -1665,6 +1689,74 @@ class VPWidenCallRecipe : public VPSingleDefRecipe {
 #endif
 };
 
+/// A recipe for widening Call instructions  with vector-predication intrinsics
+/// with explicit vector length (EVL).
+class VPWidenCallEVLRecipe : public VPWidenCallRecipe {
+  // using VPRecipeWithIRFlags::transferFlags;
+  // Intrinsic::ID VectorIntrinsicID;
+
+public:
+  template <typename IterT>
+  VPWidenCallEVLRecipe(Value *UV, iterator_range<IterT> CallArguments,
+                       Intrinsic::ID VectorIntrinsicID, DebugLoc DL,
+                       VPValue &EVL)
+      : VPWidenCallRecipe(VPDef::VPWidenCallEVLSC, UV, CallArguments,
+                          VectorIntrinsicID, DL) {
+    addOperand(&EVL);
+  }
+
+  VPWidenCallEVLRecipe(VPWidenCallRecipe &W, Intrinsic::ID VectorIntrinsicID,
+                       DebugLoc DL, VPValue &EVL)
+      : VPWidenCallEVLRecipe(W.getUnderlyingValue(), W.operands(),
+                             VectorIntrinsicID, DL, EVL) {}
+
+  ~VPWidenCallEVLRecipe() override = default;
+
+  VPWidenCallEVLRecipe *clone() override {
+    llvm_unreachable("VPWidenCallEVLRecipe cannot be cloned");
+    return nullptr;
+  }
+
+  VPValue *getEVL() { return getOperand(getNumOperands() - 1); }
+  const VPValue *getEVL() const { return getOperand(getNumOperands() - 1); }
+
+  // Intrinsic::ID getVectorIntrinsicID() {
+  //   return VectorIntrinsicID;
+  // }
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LiqinWeng wrote:

Implemented on this #110489

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