[PATCH] D104408: AMDGPU/GlobalISel: Treat undef as KnownNeverNaN

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D104408#2822733 <https://reviews.llvm.org/D104408#2822733>, @Petar.Avramovic wrote:

> This is required to match splat that was padded with undef into clamp D90052 <https://reviews.llvm.org/D90052>. When undef is used to pad with element that does not affect the result we interpret it in a way to clamp other elements.

This at least needs a parameter to ignore undefs. It's not really true to the name of the function otherwise


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