David Green 649cf4514d [AArch64] Expand the SVE min/max reduction costs to NEON
This takes the existing SVE costing for the various min/max reduction
intrinsics and expands it to NEON, where I believe it applies equally
well.

In the process it changes the lowering to use min/max cost, as opposed
to summing up the cost of ICmp+Select.

Differential Revision: https://reviews.llvm.org/D106239
2021-08-05 23:23:24 +01:00
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