[llvm] [VPlan] Introduce VPWidenIntrinsicRecipe to separate from libcall. (PR #110486)

[Alexey Bataev via llvm-commits]

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@@ -1608,25 +1609,77 @@ class VPScalarCastRecipe : public VPSingleDefRecipe {
   }
 };
 
-/// A recipe for widening Call instructions.
-class VPWidenCallRecipe : public VPRecipeWithIRFlags {
-  /// ID of the vector intrinsic to call when widening the call. If set the
-  /// Intrinsic::not_intrinsic, a library call will be used instead.
+/// A recipe for widening vector intrinsics.
+class VPWidenIntrinsicRecipe : public VPRecipeWithIRFlags {
+  /// ID of the vector intrinsic to widen.
   Intrinsic::ID VectorIntrinsicID;
-  /// If this recipe represents a library call, Variant stores a pointer to
-  /// the chosen function. There is a 1:1 mapping between a given VF and the
-  /// chosen vectorized variant, so there will be a different vplan for each
-  /// VF with a valid variant.
+
+  /// Scalar type of the result produced by the intrinsic.
+  Type *ResultTy;
+
+  bool MayWriteToMemory;
+  bool MayReadFromMemory;
+  bool MayHaveSideEffects;
+
+public:
+  template <typename IterT>
+  VPWidenIntrinsicRecipe(CallInst &CI, Intrinsic::ID VectorIntrinsicID,
+                         iterator_range<IterT> CallArguments, Type *Ty,
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alexey-bataev wrote:

What about ArrayRef<IterT> here instead of iterator_range<IterT>?

https://github.com/llvm/llvm-project/pull/110486