[PATCH] D106439: [OpenMP] Fold `__kmpc_is_generic_main_thread_id` if possible

[Joseph Huber via Phabricator via llvm-commits]

jhuber6 created this revision.
jhuber6 added reviewers: jdoerfert, tianshilei1992.
Herald added subscribers: ormris, guansong, hiraditya, yaxunl.
jhuber6 requested review of this revision.
Herald added a reviewer: sstefan1.
Herald added subscribers: llvm-commits, bbn, sstefan1.
Herald added a reviewer: baziotis.
Herald added a project: LLVM.

This patch adds the ability to fold `__kmpc_is_generic_main_thread_id` if we
know for a fact that it is executed by the initial thread using
AAExecutionDomain. This combined with folding `__kmpc_is_spmd_exec_mode` will
allow us to fully fold `__kmpc_is_generic_main_thread`.

Depends on D106438 <https://reviews.llvm.org/D106438> D106437 <https://reviews.llvm.org/D106437>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106439

Files:
  llvm/lib/Transforms/IPO/OpenMPOpt.cpp
  llvm/test/Transforms/OpenMP/fold_generic_main_thread.ll

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