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-rw-r--r--includes/stg/SMP.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/includes/stg/SMP.h b/includes/stg/SMP.h
index fa52a913c4..9390c00eb1 100644
--- a/includes/stg/SMP.h
+++ b/includes/stg/SMP.h
@@ -440,6 +440,7 @@ load_load_barrier(void) {
// Relaxed atomic operations.
#define RELAXED_LOAD(ptr) __atomic_load_n(ptr, __ATOMIC_RELAXED)
#define RELAXED_STORE(ptr,val) __atomic_store_n(ptr, val, __ATOMIC_RELAXED)
+#define RELAXED_ADD(ptr,val) __atomic_add_fetch(ptr, val, __ATOMIC_RELAXED)
// Acquire/release atomic operations
#define ACQUIRE_LOAD(ptr) __atomic_load_n(ptr, __ATOMIC_ACQUIRE)