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-rw-r--r--sysdeps/tile/tilepro/atomic-machine.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/tile/tilepro/atomic-machine.h b/sysdeps/tile/tilepro/atomic-machine.h
index 33a8b85bbd..45e36de1e4 100644
--- a/sysdeps/tile/tilepro/atomic-machine.h
+++ b/sysdeps/tile/tilepro/atomic-machine.h
@@ -23,6 +23,7 @@
 
 #define __HAVE_64B_ATOMICS 0
 #define USE_ATOMIC_COMPILER_BUILTINS 0
+#define ATOMIC_EXCHANGE_USES_CAS 0
 
 /* 32-bit integer compare-and-exchange. */
 static __inline __attribute__ ((always_inline))