[PATCH] D78800: [AMDGPU] Skip generating cache invalidating instructions on AMDPAL

[Piotr Sobczak via Phabricator via llvm-commits]

piotr created this revision.
Herald added subscribers: llvm-commits, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl, arsenm.
Herald added a project: LLVM.

Frontend guarantees that coherent accesses have
corresponding cache policy bits set (glc, dlc).
Therefore there is no need for extra instructions
that invalidate cache.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78800

Files:
  llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp
  llvm/test/CodeGen/AMDGPU/memory-legalizer-amdpal.ll

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