[PATCH] D152408: AMDGPU: Avoid endpgm in middle of block for fallback trap lowering.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: AMDGPU, JonChesterfield, kzhuravl, Pierre-vh, rampitec, ruiling, critson.
Herald added subscribers: foad, kerbowa, hiraditya, tpr, dstuttard, yaxunl, jvesely.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

This was inserting an s_endpgm in the middle of the block when it has
to be a terminator. Split the block and insert a branch to a new block
with the trap if it's not in a terminator position.

      

Fixes verifier error on LDS in function with no trap support (and
other trap sources).


https://reviews.llvm.org/D152408

Files:
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
  llvm/lib/Target/AMDGPU/AMDGPUInstrInfo.td
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/lib/Target/AMDGPU/SIInstructions.td
  llvm/test/CodeGen/AMDGPU/lds-global-non-entry-func.ll
  llvm/test/CodeGen/AMDGPU/trap.ll

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