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| author | Andrew MacLeod <amacleod@redhat.com> | 2012-10-09 18:40:02 +0000 |
|---|---|---|
| committer | Andrew Macleod <amacleod@gcc.gnu.org> | 2012-10-09 18:40:02 +0000 |
| commit | 3cedb9108b399c52167810df29b71b5f5c8b9d9e (patch) | |
| tree | 90d42b278819bdef98548f1047310e00ea442a62 | |
| parent | e561a9920cce1e638826a53599eb55ec44ce54c2 (diff) | |
| download | gcc-3cedb9108b399c52167810df29b71b5f5c8b9d9e.zip gcc-3cedb9108b399c52167810df29b71b5f5c8b9d9e.tar.gz gcc-3cedb9108b399c52167810df29b71b5f5c8b9d9e.tar.bz2 | |
re PR libstdc++/54861 (std::atomic_signal_fence(std::memory_order_seq_cst) issues unnecessary mfence)
2012-10-09 Andrew MacLeod <amacleod@redhat.com>
PR libstdc++/54861
* include/bits/atomic_base.h (atomic_signal_fence): Call
__atomic_signal_fence instead of __atomic_thread_fence.
From-SVN: r192268
| -rw-r--r-- | libstdc++-v3/ChangeLog | 6 | ||||
| -rw-r--r-- | libstdc++-v3/include/bits/atomic_base.h | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 1f5c8df..e395dd2 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,9 @@ +2012-10-09 Andrew MacLeod <amacleod@redhat.com> + + PR libstdc++/54861 + * include/bits/atomic_base.h (atomic_signal_fence): Call + __atomic_signal_fence instead of __atomic_thread_fence. + 2012-10-09 Benjamin Kosnik <bkoz@redhat.com> * testsuite/20_util/specialized_algorithms/uninitialized_copy/808590.cc: diff --git a/libstdc++-v3/include/bits/atomic_base.h b/libstdc++-v3/include/bits/atomic_base.h index de098a3..af8a924 100644 --- a/libstdc++-v3/include/bits/atomic_base.h +++ b/libstdc++-v3/include/bits/atomic_base.h @@ -74,7 +74,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION inline void atomic_signal_fence(memory_order __m) noexcept - { __atomic_thread_fence(__m); } + { __atomic_signal_fence(__m); } /// kill_dependency template<typename _Tp> |