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| author | dim <dim@FreeBSD.org> | 2013-04-27 19:26:56 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2013-04-27 19:26:56 +0000 |
| commit | 7b9fef1391980ba73dcc1c4ea9b36dcb7f6f7794 (patch) | |
| tree | 574da279b6e15a5066f7a63afa9c67c6c0e12cc1 /contrib/libcxxrt/atomic.h | |
| parent | 046db6cecd043a6833060897f100e549196cfceb (diff) | |
| download | FreeBSD-src-7b9fef1391980ba73dcc1c4ea9b36dcb7f6f7794.zip FreeBSD-src-7b9fef1391980ba73dcc1c4ea9b36dcb7f6f7794.tar.gz | |
Merge libcxxrt c812a07cd2f95c1403baf0bbe0366e7618d1d6d3:
* Don't call the _fast version of the TLS accessor in terminate() or
unexpected().
1) TLS may not have been set up yet.
2) When we're in one of these functions, Really Bad Stuff has
happened and potentially saving a few cycles really isn't
important.
* Merge in fixes from FreeBSD trunk to make atomics work with recent
clang.
MFC after: 1 week
Diffstat (limited to 'contrib/libcxxrt/atomic.h')
| -rw-r--r-- | contrib/libcxxrt/atomic.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/contrib/libcxxrt/atomic.h b/contrib/libcxxrt/atomic.h index 53aa26f..f68faf3 100644 --- a/contrib/libcxxrt/atomic.h +++ b/contrib/libcxxrt/atomic.h @@ -9,7 +9,7 @@ * Swap macro that enforces a happens-before relationship with a corresponding * ATOMIC_LOAD. */ -#if __has_feature(cxx_atomic) +#if __has_builtin(__c11_atomic_exchange) #define ATOMIC_SWAP(addr, val)\ __c11_atomic_exchange((_Atomic(__typeof__(val))*)addr, val, __ATOMIC_ACQ_REL) #elif __has_builtin(__sync_swap) @@ -20,7 +20,7 @@ __sync_lock_test_and_set(addr, val) #endif -#if __has_feature(cxx_atomic) +#if __has_builtin(__c11_atomic_load) #define ATOMIC_LOAD(addr)\ __c11_atomic_load((_Atomic(__typeof__(*addr))*)addr, __ATOMIC_ACQUIRE) #else |
