forked from OSchip/llvm-project
4bdd51332f
This work-around was necessary to handle standard library headers in Visual Studio 2019 16.2. Now that 16.3 has shipped to stable, we can remove it. > Re-commit r363191 "[MS] Pretend constexpr variable template specializations are inline" > > While the next Visual Studio update (16.3) will fix this issue, that hasn't > shipped yet. Until then Clang wouldn't work with MSVC's headers which seems > unfortunate. Let's keep this in until VS 16.3 ships. (See also PR42843.) > >> Fixes link errors with clang and the latest Visual C++ 14.21.27702 >> headers, which was reported as PR42027. >> >> I chose to intentionally make these things linkonce_odr, i.e. >> discardable, so that we don't emit definitions of these things in every >> translation unit that includes STL headers. >> >> Note that this is *not* what MSVC does: MSVC has not yet implemented C++ >> DR2387, so they emit fully specialized constexpr variable templates with >> static / internal linkage. >> >> Reviewers: rsmith >> >> Differential Revision: https://reviews.llvm.org/D63175 llvm-svn: 372844 |
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