[PATCH] D119006: [AMDGPU] SILoadStoreOptimizer: avoid unbounded register pressure increases

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

In D119006#3297626 <https://reviews.llvm.org/D119006#3297626>, @rampitec wrote:

> Doesn't moving a load higher and a store lower increase register pressure itself?

Yes, but in a very controlled way: exactly one live range gets lengthened. I'm trying to avoid the kind of crzay problems we've seen where merging one pair of loads increases the pressure by several hundred vgprs.


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