diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/atomic-machine.h')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/atomic-machine.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/atomic-machine.h b/sysdeps/powerpc/powerpc64/atomic-machine.h index 40c308e210..46df488b3c 100644 --- a/sysdeps/powerpc/powerpc64/atomic-machine.h +++ b/sysdeps/powerpc/powerpc64/atomic-machine.h @@ -35,6 +35,7 @@ #define __HAVE_64B_ATOMICS 1 #define USE_ATOMIC_COMPILER_BUILTINS 0 +#define ATOMIC_EXCHANGE_USES_CAS 1 /* The 32-bit exchange_bool is different on powerpc64 because the subf does signed 64-bit arithmetic while the lwarx is 32-bit unsigned |