[PATCH] D42976: [AMDGPU] removed dead code handling rmw in memory legalizer

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
rampitec added a reviewer: kzhuravl.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, arsenm.

It was always using cmpxchg path and in rmw and cmpxchg instructions
are not distinguishable in the BE.


https://reviews.llvm.org/D42976

Files:
  lib/Target/AMDGPU/SIMemoryLegalizer.cpp

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