[Openmp-commits] [PATCH] D102307: [OpenMP] Detect SPMD compatible kernels and execute them as suchNOTE: The global "exec_mode" flag needs to be changed as well, will update this shortly. More tests needed.

[Johannes Doerfert via Phabricator via Openmp-commits]

jdoerfert created this revision.
jdoerfert added reviewers: carlo.bertolli, ABataev, JonChesterfield, ggeorgakoudis, tianshilei1992.
Herald added subscribers: guansong, hiraditya, yaxunl.
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jdoerfert requested review of this revision.
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In the spirit of TRegions [0], this patch analyzes a kernel and tracks
if it can be executed in SPMD-mode. If so, we flip the arguments of
the __kmpc_target_init and deinit call to enable the mode.

The code analysis is done interprocedurally by extending the
AAKernelInfo abstract attribute to track SPMD compatibility as well.

[0] https://link.springer.com/chapter/10.1007/978-3-030-28596-8_11


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102307

Files:
  llvm/include/llvm/Frontend/OpenMP/OMPConstants.h
  llvm/lib/Transforms/IPO/OpenMPOpt.cpp
  llvm/test/Transforms/OpenMP/custom_state_machines.ll
  llvm/test/Transforms/OpenMP/spdm_mode.ll

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