[PATCH] D127994: [AMDGPU] Expose CLI controls for IGroup ordering

[Jeffrey Byrnes via Phabricator via llvm-commits]

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This patch implements the necessary framework to allow users to specify custom ordering in the IGroupLP mutation. Specifically, it implements a parser and extracts some common IGroup data to a table, to force agreement between the producer and consumer of the IGroupLP ordering. In the current iteration, users can only specify an IGroup once (including via subgroup -- e.g. can't have VMEMWrite and VMEM groups). The user is expected to provide a simple comma separated string of IGroups, with optional sizes occuring after a specified IGroup.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127994

Files:
  llvm/lib/Target/AMDGPU/AMDGPUIGroupLP.cpp
  llvm/test/CodeGen/AMDGPU/igrouplp-dag-mutation.mir

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