[PATCH] D110926: [GlobalISel] Support vectors in LegalizerHelper::narrowScalarMul

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

In D110926#3073752 <https://reviews.llvm.org/D110926#3073752>, @arsenm wrote:

> Don't we need this even if AMDGPU scalarizes first?

Why? For other targets? Maybe, but I'm not motivated to work on it until there's a concrete need for it.


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