[LV][EVL] Support interleaved access with tail folding by EVL (#152070) The InterleavedAccess pass already supports transforming vector-predicated (vp) load/store intrinsics. With this patch, we start enabling interleaved access under tail folding by EVL. This patch introduces a new base class, VPInterleaveBase, and a concrete class, VPInterleaveEVLRecipe. Both the existing VPInterleaveRecipe and the new VPInterleaveEVLRecipe inherit from and implement VPInterleaveBase. Compared to VPInterleaveRecipe, VPInterleaveEVLRecipe adds an EVL operand to emit vp.load/vp.store intrinsics. Currently, tail folding by EVL is only supported for scalable vectorization. Therefore, VPInterleaveEVLRecipe will only emit interleave/deinterleave intrinsics. Reverse accesses are not yet implemented, as masked reverse interleaved access under tail folding is not yet supported. Fixed #123201
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