Mel Chen 9b4ad2fe50 [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.

2025-03-03 21:27:13 +08:00

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