[PATCH] D49983: AMDGPU: Treat more custom operations as canonicalizing

[Matt Arsenault via Phabricator via llvm-commits]

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

Everything should quiet, and I think everything should
flush.

      

I assume the min3/med3/max3 follow the same rules
as regular min/max for flushing, which should at
least be conservatively correct.

      

There are still more operations that need to
be handled.


https://reviews.llvm.org/D49983

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/known-never-snan.ll

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