[Openmp-commits] [PATCH] D107842: [OpenMP] Version functions to aid SPMDzation

Johannes Doerfert via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Tue Aug 10 10:05:19 PDT 2021

jdoerfert created this revision.
jdoerfert added reviewers: jhuber6, ggeorgakoudis.
Herald added subscribers: ormris, okura, kuter, jfb, guansong, bollu, hiraditya, yaxunl.
jdoerfert requested review of this revision.
Herald added a reviewer: sstefan1.
Herald added subscribers: llvm-commits, sstefan1.
Herald added a reviewer: baziotis.
Herald added a project: LLVM.

If a function is reached from a parallel region and a sequential part of
a kernel we cannot use the simple guarding blocks for side effects as
they might deadlock in the parallel region. This patch will track such
functions and version them. We will call a ".parallel" version if we
reach it from a parallel region and the default one otherwise. Only in
the default one we will create guards which avoids checks for the "mode"
and potential deadlocks.

  rG LLVM Github Monorepo



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