llvm /
llvm /
b6d8f1d922903b62102a610043b9045d742e8c4a [NFC] Make Optional<T> trivially copyable when T is trivially copyable
This is a follow-up to r354246 and a reimplementation of https://reviews.llvm.org/D57097?id=186600
that should not trigger any UB thanks to the use of an union.
This may still be subject to the problem solved by std::launder, but I'm unsure how it interacts whith union.
/me plans to revert if this triggers any relevant bot failure. At least this validates in Release mode with
clang 6.0.1 and gcc 4.8.5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354264 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed
