[PATCH] D155868: [AMDGPU] Add patterns for v_dot*_IU for GFX11

[Jeffrey Byrnes via Phabricator via llvm-commits]

jrbyrnes added a comment.

In D155868#4614117 <https://reviews.llvm.org/D155868#4614117>, @arsenm wrote:

> This is better than the combiner - if it doesn't completely blow up compile time. It's probably easier to avoid the compile time problems with the combine though

The main problem is the amount of permutations that can occur in extract code. I haven't tired implementing in TableGen and measuring, but I would assume that trying to pattern match them all with tablegen would blow up compile time.


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