[all-commits] [llvm/llvm-project] 0fab22: [AMDGPU] move PHI nodes to AGPR class

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0fab220eb5882ef451d039d5251a0a1298121f63
      https://github.com/llvm/llvm-project/commit/0fab220eb5882ef451d039d5251a0a1298121f63
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2019-10-18 (Fri, 18 Oct 2019)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
    A llvm/test/CodeGen/AMDGPU/mfma-loop.ll

  Log Message:
  -----------
  [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