[PATCH] D70781: AMDGPU: Fix handling of infinite loops in fragment shaders

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle added a comment.

This mostly looks good, except I strongly suspect that all other export intrinsics should have their done bit set to 0 in this case.

If two exports with done bit are executed, I suspect we could enter race conditions where the export allocation is freed after the first export with done, and then another wave gets the same export memory spot and its data could be overwritten by the second, newly introduced, export with done bit. Or enter some hang condition in the hardware. Who knows.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70781/new/

https://reviews.llvm.org/D70781