[PATCH] D31353: AMDGPU: Diagnose illegal SGPR to VGPR copies

[Matt Arsenault via Phabricator via llvm-commits]

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

This is possible in ways that are not compiler bugs,
so stop asserting on them.

      

This emits an extra error when emitting objects when it
can't encode the new pseudo, but I'm not sure that matters.


https://reviews.llvm.org/D31353

Files:
  lib/Target/AMDGPU/SIInstrFormats.td
  lib/Target/AMDGPU/SIInstrInfo.cpp
  lib/Target/AMDGPU/SIInstructions.td
  test/CodeGen/AMDGPU/illegal-sgpr-to-vgpr-copy.ll

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