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Summary:
Finds OpenMP directives that are allowed to contain `default` clause,
but either don't specify it, or the clause is specified but with the kind
other than `none`, and suggests to use `default(none)` clause.
Using `default(none)` clause changes the default variable visibility from
being implicitly determined, and thus forces developer to be explicit about the
desired data scoping for each variable.
Reviewers: JonasToth, aaron.ballman, xazax.hun, hokein, gribozavr
Reviewed By: JonasToth, aaron.ballman
Subscribers: jdoerfert, openmp-commits, klimek, sbenza, arphaman, Eugene.Zelenko, ABataev, mgorny, rnkovacs, guansong, cfe-commits
Tags: #clang-tools-extra, #openmp, #clang
Differential Revision: https://reviews.llvm.org/D57113
llvm-svn: 356801
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