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tsan/asan: second attemp on msvc atomics 

llvm-svn: 159447
This commit is contained in:
Dmitry Vyukov 2012-06-29 18:28:02 +00:00
parent 3f568c100e
commit b379fe51b4
1 changed files with 14 additions and 7 deletions
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21
compiler-rt/lib/sanitizer_common/sanitizer_atomic_msvc.h
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@ -15,7 +15,14 @@
#ifndef SANITIZER_ATOMIC_MSVC_H
#define SANITIZER_ATOMIC_MSVC_H
#include <intrin.h>
void _ReadWriteBarrier();
#pragma intrinsic(_ReadWriteBarrier)
void _mm_mfence();
#pragma intrinsic(_mm_mfence)
void _mm_pause();
#pragma intrinsic(_mm_pause)
long _InterlockedExchangeAdd(long volatile * Addend, long Value); // NOLINT
#pragma intrinsic(_InterlockedExchangeAdd)
namespace __sanitizer {
@ -79,9 +86,9 @@ INLINE u8 atomic_exchange(volatile atomic_uint8_t *a,
DCHECK(!((uptr)a % sizeof(*a)));
__asm {
mov eax, a
mov cx, v
xchg [eax], cx // NOLINT
mov v, cx
mov cl, v
xchg [eax], cl // NOLINT
mov v, cl
}
return v;
}
@ -92,9 +99,9 @@ INLINE u16 atomic_exchange(volatile atomic_uint16_t *a,
DCHECK(!((uptr)a % sizeof(*a)));
__asm {
mov eax, a
mov cl, v
xchg [eax], cl // NOLINT
mov v, cl
mov cx, v
xchg [eax], cx // NOLINT
mov v, cx
}
return v;
}