[PATCH] D115747: [AMDGPU] Hoist waitcnt out of loops when they unecessarily wait for stores

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> Refactoring of the pass. We compute the brackets for both the flushed and non-flushed versions of each outer loop

I am nervous about the compile time impact of this, and about adding the extra code to implement this. (The pass is pretty complicated already.) Is the refactoring really required for the GFX9 improvement, or only for the planned GFX10 improvement?


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https://reviews.llvm.org/D115747