[llvm] [LV] Support binary and unary operations with EVL-vectorization (PR #93854)

[Kolya Panchenko via llvm-commits]

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@@ -1433,6 +1440,45 @@ class VPWidenRecipe : public VPRecipeWithIRFlags {
 #endif
 };
 
+class VPWidenEVLRecipe : public VPWidenRecipe {
+  using VPRecipeWithIRFlags::transferFlags;
+
+public:
+  template <typename IterT>
+  VPWidenEVLRecipe(Instruction &I, iterator_range<IterT> Operands, VPValue &EVL)
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nikolaypanchenko wrote:

`VPWidenRecipe` has no explicit mask operand, so better to keep this PR as simple as possible.

https://github.com/llvm/llvm-project/pull/93854