[PATCH] D123941: AMDGPU: Fix allocating GDS globals to LDS offsets

[Matt Arsenault via Phabricator via llvm-commits]

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These don't seem to be very well used or tested, but try to make the
behavior a bit more consistent with LDS globals.

      

I'm not sure what the definition for amdgpu-gds-size is supposed to
mean. For now I assumed it's allocating a static size at the beginning
of the allocation, and any known globals are allocated after it.


https://reviews.llvm.org/D123941

Files:
  llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
  llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.h
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
  llvm/test/CodeGen/AMDGPU/gds-allocation.ll
  llvm/test/CodeGen/MIR/AMDGPU/machine-function-info.ll

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