[Openmp-commits] [PATCH] D106460: [OpenMP] Add new execution mode for SPMD execution with Generic semantics

[Joseph Huber via Phabricator via Openmp-commits]

jhuber6 created this revision.
jhuber6 added reviewers: jdoerfert, ggeorgakoudis.
Herald added subscribers: ormris, kerbowa, guansong, hiraditya, yaxunl, nhaehnle, jvesely.
jhuber6 requested review of this revision.
Herald added subscribers: llvm-commits, openmp-commits, sstefan1.
Herald added projects: OpenMP, LLVM.

Qualified kernels can be transformed from generic-mode to SPMD mode using an
optimization in OpenMPOpt. This patch introduces a new execution mode to
indicate kernels that have been transformed from generic-mode to SPMD-mode.
These kernels have SPMD-mode execution, but need generic-mode semantics for
scheduling the blocks and threads. Without this far too few blocks will be
scheduled for a generic region as SPMD mode expects the trip count to be
divided by the number of threads.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106460

Files:
  llvm/lib/Transforms/IPO/OpenMPOpt.cpp
  llvm/test/Transforms/OpenMP/is_spmd_exec_mode_fold.ll
  llvm/test/Transforms/OpenMP/spmdization.ll
  openmp/libomptarget/plugins/amdgpu/src/rtl.cpp
  openmp/libomptarget/plugins/cuda/src/rtl.cpp

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