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Add test for spaceship operator to __config

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Summary:
The libcxx test suite auto-detects spaceship operator, but __config does not. This means that the libcxx test suite has been broken for over a month when using top-of-tree clang. This also really ought to be fixed before 10.0.

See: bc633a42dd409dbeb456263e3388b8caa4680aa0

Reviewers: chandlerc, mclow.lists, EricWF, ldionne, CaseyCarter

Reviewed By: EricWF

Subscribers: broadwaylamb, hans, dexonsmith, tstellar, llvm-commits, libcxx-commits

Tags: #libc, #llvm

Differential Revision: https://reviews.llvm.org/D72980
This commit is contained in:
David Zarzycki 2020-01-24 13:26:53 -05:00
parent abd1927d44
commit 5dda92fcb0
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GPG Key ID: 8B057946497419F7
1 changed files with 2 additions and 3 deletions
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5
libcxx/include/__config
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@ -1359,10 +1359,9 @@ _LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
#define _LIBCPP_HAS_NO_COROUTINES
#endif
// FIXME: Correct this macro when either (A) a feature test macro for the
// spaceship operator is provided, or (B) a compiler provides a complete
// implementation.
#if !defined(__cpp_impl_three_way_comparison) || __cpp_impl_three_way_comparison < 201907L
#define _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
#endif
// Decide whether to use availability macros.
#if !defined(_LIBCPP_BUILDING_LIBRARY) && \