[PATCH] D118415: AMDGPU: Reserve v32 if we may need to copy between AGPRs on gfx908

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec added a comment.

In D118415#3280314 <https://reviews.llvm.org/D118415#3280314>, @cdevadas wrote:

> I guess disallowing direct agpr -> agpr copy for gfx908 early from instruction selection would be a better fix. I am anyway working on a patch to avoid direct sgpr -> agpr copies. In that way, we could avoid Scavenger altogether while lowering COPY instructions.

Note though copies are created in many passes.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D118415/new/

https://reviews.llvm.org/D118415