[PATCH] D32056: AMDGPU: Move trap lowering to DAG

[Matt Arsenault via Phabricator via llvm-commits]

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

Fixes traps in any block besides the entry block,
and fixes depending on a live-in physical register
by using a virtual register copy.

      

Also happens to stop emitting a nop in the case
debug trap is not supported.


https://reviews.llvm.org/D32056

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.h
  lib/Target/AMDGPU/AMDGPUInstrInfo.td
  lib/Target/AMDGPU/SIISelLowering.cpp
  lib/Target/AMDGPU/SIInstructions.td
  test/CodeGen/AMDGPU/trap.ll

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