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[Hexagon, SystemZ] Be super conservative about atomics

Authored by reames on Feb 23 2019, 4:45 PM.

Description

[Hexagon, SystemZ] Be super conservative about atomics

As requested during review of D57601, be equally conservative for atomic MMOs as for volatile MMOs in all in tree backends. At the moment, all atomic MMOs are also volatile, but I'm about to change that.

Reviewed as part of https://reviews.llvm.org/D58490, with other backends still pending review.

llvm-svn: 354740

Details

Committed
reamesFeb 23 2019, 4:45 PM
Parents
rGe7b9464943e1: VFS: Avoid some unnecessary std::string copies
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