llvm-project

9b4ad2fe - [LV][EVL] Support fixed-order recurrence idiom with EVL tail folding. (#124093)

[LV][EVL] Support fixed-order recurrence idiom with EVL tail folding. (#124093) This patch converts the llvm.vector.splice intrinsic to llvm.experimental.vp.splice, ensuring that fixed-order recurrences execute correctly when tail folding by EVL is enable. Due to the non-VFxUF penultimate EVL issue, the EVL from the previous iteration will be preserved and used in llvm.experimental.vp.splice.