From a94f24ba2b77d6cdfab38d86c346d05b3127c4f8 Mon Sep 17 00:00:00 2001 From: khizmax Date: Mon, 15 May 2017 22:53:17 +0300 Subject: [PATCH] A magic code is found to fix CLang 3.6-3.7 mass test failures for FeldmanHashSet even in single-threaded ubit tests --- cds/urcu/details/gp.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/cds/urcu/details/gp.h b/cds/urcu/details/gp.h index 512a0b2b..fa8cf8a6 100644 --- a/cds/urcu/details/gp.h +++ b/cds/urcu/details/gp.h @@ -87,6 +87,11 @@ namespace cds { namespace urcu { namespace details { uint32_t tmp = pRec->m_nAccessControl.load( atomics::memory_order_relaxed ); assert( (tmp & rcu_class::c_nNestMask) > 0 ); +#if CDS_COMPILER == CDS_COMPILER_CLANG && CDS_COMPILER_VERSION < 30800 + // CLang 3.6-3.7: some tests of intrusive::FeldmanHashSet based on general-purpose RCU + // are failed even in single-threaded mode (unit tests) without magic compiler barrier below + CDS_COMPILER_RW_BARRIER; +#endif pRec->m_nAccessControl.store( tmp - 1, atomics::memory_order_release ); } -- 2.34.1