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Konstantin Belousov authored
Only 64bit architectures can be supported this way, because libcxx defines __cxx_contention_t to be int64_t for FreeBSD, and 32bit arches do not have a kind of UMTX_OP_WAIT_INT64_PRIVATE operation. LLVM review: https://reviews.llvm.org/D142134 Tested by: emaste Reviewed by: dim, emaste, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D38132
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