[PATCH] D72105: AMDGPU/GlobalISel: Assume vcc phis for any vcc input

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: nhaehnle, kerbowa, tstellar.
Herald added subscribers: Petar.Avramovic, hiraditya, t-tye, tpr, dstuttard, rovka, yaxunl, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.
arsenm added a child revision: D71860: AMDGPU/GlobalISel: Replace handling of boolean values.

This produces more intelligible looking results, more comparabble to
the DAG output in the simplest cases. This is probably wrong in
complex control flow, but RegBankSelect doesn't attempt analyzing if
this is on a masked path for selecting the bank yet.


https://reviews.llvm.org/D72105

Files:
  llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-phi-s1.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-phi.mir

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