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Summary

  1. [AMDGPU] move PHI nodes to AGPR class (details)
Commit 0fab220eb5882ef451d039d5251a0a1298121f63 by Stanislav.Mekhanoshin
[AMDGPU] move PHI nodes to AGPR class
If all uses of a PHI are in AGPR register class we should avoid unneeded
copies via VGPRs.
Differential Revision: https://reviews.llvm.org/D69200
llvm-svn: 375297
The file was modifiedllvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
The file was addedllvm/test/CodeGen/AMDGPU/mfma-loop.ll