[PATCH] D117844: [AMDGPU] Prevent aliasing of SrcC and Dst in MAI

Stanislav Mekhanoshin via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 20 16:22:33 PST 2022


rampitec added a comment.

Theoretically last mfma in chain may use tied operands because SRC shall be killed. I am not sure though how to tell it is last. I could use kill flag, but it is going away and unreliable. In general it shall be better to check for the kill alone, but only if it is reliable.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D117844/new/

https://reviews.llvm.org/D117844



More information about the llvm-commits mailing list