[PATCH] D20756: AMDGPU: Fix constantexpr addrspacecasts

[Matt Arsenault via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: tstellarAMD.
arsenm added a subscriber: llvm-commits.
Herald added subscribers: kzhuravl, arsenm.

If we had a constant group address space cast the queue pointer
wasn't enabled for the function, resulting in a crash on noreg
later.

http://reviews.llvm.org/D20756

Files:
  lib/Target/AMDGPU/AMDGPUAnnotateKernelFeatures.cpp
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll

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