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atomic.h: fix __SANITIZE_THREAD__ build

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Only very modern GCC's actually set this define when building with the
ThreadSanitizer so this little typo slipped though.

Backports commit 23ea7f57949f2f5934f4d5bbc29fe321b3a7067b from qemu
This commit is contained in:
Alex Bennée 2018-02-26 05:12:14 -05:00 committed by Lioncash
parent d4cb954102
commit fbf6fb1e25
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1 changed files with 1 additions and 1 deletions
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qemu/include/qemu/atomic.h
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@ -48,7 +48,7 @@ void _ReadWriteBarrier(void);
*/
#if defined(__SANITIZE_THREAD__)
#define smp_read_barrier_depends() ({ barrier(); __atomic_thread_fence(__ATOMIC_CONSUME); barrier(); })
#elsif defined(__alpha__)
#elif defined(__alpha__)
#define smp_read_barrier_depends() asm volatile("mb":::"memory")
#else
#define smp_read_barrier_depends() barrier()