David Green e0c479cd0e [VPlan] Switch VPWidenRecipe to be a VPValue ...

Similar to other patches, this makes VPWidenRecipe a VPValue. Because of
the way it interacts with the reduction code it also slightly alters the
way that VPValues are registered, removing the up front NeedDef and
using getOrAddVPValue to create them on-demand if needed instead.

Differential Revision: https://reviews.llvm.org/D88447

2020-11-25 08:25:06 +00:00

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