diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 762eeb0fcc1d..2524fb60fbc2 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -66,38 +66,35 @@ ATOMIC_OPS(add, +)
 ATOMIC_OPS(sub, -)
 
 #ifdef __OPTIMIZE__
-#define __ia64_atomic_const(i)	__builtin_constant_p(i) ?		\
+#define __ia64_atomic_const(i)						\
+	static const int __ia64_atomic_p = __builtin_constant_p(i) ?	\
 		((i) == 1 || (i) == 4 || (i) == 8 || (i) == 16 ||	\
-		 (i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0
-
-#define atomic_add_return(i, v)						\
-({									\
-	int __i = (i);							\
-	static const int __ia64_atomic_p = __ia64_atomic_const(i);	\
-	__ia64_atomic_p ? ia64_fetch_and_add(__i, &(v)->counter) :	\
-				ia64_atomic_add(__i, v);		\
-})
-
-#define atomic_sub_return(i, v)						\
-({									\
-	int __i = (i);							\
-	static const int __ia64_atomic_p = __ia64_atomic_const(i);	\
-	__ia64_atomic_p ? ia64_fetch_and_add(-__i, &(v)->counter) :	\
-				ia64_atomic_sub(__i, v);		\
-})
+		 (i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0;\
+	__ia64_atomic_p
 #else
-#define atomic_add_return(i, v)	ia64_atomic_add(i, v)
-#define atomic_sub_return(i, v)	ia64_atomic_sub(i, v)
+#define __ia64_atomic_const(i)	0
 #endif
 
+#define atomic_add_return(i,v)						\
+({									\
+	int __ia64_aar_i = (i);						\
+	__ia64_atomic_const(i)						\
+		? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)	\
+		: ia64_atomic_add(__ia64_aar_i, v);			\
+})
+
+#define atomic_sub_return(i,v)						\
+({									\
+	int __ia64_asr_i = (i);						\
+	__ia64_atomic_const(i)						\
+		? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)	\
+		: ia64_atomic_sub(__ia64_asr_i, v);			\
+})
+
 #define atomic_fetch_add(i,v)						\
 ({									\
 	int __ia64_aar_i = (i);						\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)		\
-	     || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)		\
-	     || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)		\
-	     || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))		\
+	__ia64_atomic_const(i)						\
 		? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq)	\
 		: ia64_atomic_fetch_add(__ia64_aar_i, v);		\
 })
@@ -105,11 +102,7 @@ ATOMIC_OPS(sub, -)
 #define atomic_fetch_sub(i,v)						\
 ({									\
 	int __ia64_asr_i = (i);						\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)		\
-	     || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)		\
-	     || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)		\
-	     || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))	\
+	__ia64_atomic_const(i)						\
 		? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq)	\
 		: ia64_atomic_fetch_sub(__ia64_asr_i, v);		\
 })
@@ -170,11 +163,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_add_return(i,v)					\
 ({									\
 	long __ia64_aar_i = (i);					\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)		\
-	     || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)		\
-	     || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)		\
-	     || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))		\
+	__ia64_atomic_const(i)						\
 		? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)	\
 		: ia64_atomic64_add(__ia64_aar_i, v);			\
 })
@@ -182,11 +171,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_sub_return(i,v)					\
 ({									\
 	long __ia64_asr_i = (i);					\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)		\
-	     || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)		\
-	     || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)		\
-	     || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))	\
+	__ia64_atomic_const(i)						\
 		? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)	\
 		: ia64_atomic64_sub(__ia64_asr_i, v);			\
 })
@@ -194,11 +179,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_fetch_add(i,v)						\
 ({									\
 	long __ia64_aar_i = (i);					\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)		\
-	     || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)		\
-	     || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)		\
-	     || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))		\
+	__ia64_atomic_const(i)						\
 		? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq)	\
 		: ia64_atomic64_fetch_add(__ia64_aar_i, v);		\
 })
@@ -206,11 +187,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_fetch_sub(i,v)						\
 ({									\
 	long __ia64_asr_i = (i);					\
-	(__builtin_constant_p(i)					\
-	 && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)		\
-	     || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)		\
-	     || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)		\
-	     || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))	\
+	__ia64_atomic_const(i)						\
 		? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq)	\
 		: ia64_atomic64_fetch_sub(__ia64_asr_i, v);		\
 })