ck_pr: Move ck_pr_barrier to compiler port.

include/ck_pr.h

@@ -44,12 +44,14 @@
 #include "gcc/ppc64/ck_pr.h"
 #elif defined(__ppc__)
 #include "gcc/ppc/ck_pr.h"
-#elif defined(__GNUC__)
-#include "gcc/ck_pr.h"
-#else
+#elif !defined(__GNUC__)
 #error Your platform is unsupported
 #endif
 
+#if defined(__GNUC__)
+#include "gcc/ck_pr.h"
+#endif
+
 #define CK_PR_FENCE_EMIT(T)			\
 	CK_CC_INLINE static void		\
 	ck_pr_fence_##T(void)			\

include/gcc/ppc/ck_pr.h

@@ -78,14 +78,6 @@ CK_PR_FENCE(memory, "sync")
 
 #undef CK_PR_FENCE
 
-CK_CC_INLINE static void
-ck_pr_barrier(void)
-{
-
-	__asm__ __volatile__("" ::: "memory");
-	return;
-}
-
 #define CK_PR_LOAD(S, M, T, C, I)				\
 	CK_CC_INLINE static T					\
 	ck_pr_load_##S(const M *target)				\

include/gcc/ppc64/ck_pr.h

@@ -81,14 +81,6 @@ CK_PR_FENCE(memory, "sync")
 
 #undef CK_PR_FENCE
 
-CK_CC_INLINE static void
-ck_pr_barrier(void)
-{
-
-	__asm__ __volatile__("" ::: "memory");
-	return;
-}
-
 #define CK_PR_LOAD(S, M, T, C, I)				\
 	CK_CC_INLINE static T					\
 	ck_pr_load_##S(const M *target)				\

include/gcc/sparcv9/ck_pr.h

@@ -74,14 +74,6 @@ CK_PR_FENCE(memory, "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
 
 #undef CK_PR_FENCE
 
-CK_CC_INLINE static void
-ck_pr_barrier(void)
-{
-
-	__asm__ __volatile__("" ::: "memory");
-	return;
-}
-
 #define CK_PR_LOAD(S, M, T, C, I)				\
 	CK_CC_INLINE static T					\
 	ck_pr_load_##S(const M *target)				\

include/gcc/x86/ck_pr.h

@@ -80,14 +80,6 @@ CK_PR_FENCE(memory, "mfence")
 
 #undef CK_PR_FENCE
 
-CK_CC_INLINE static void
-ck_pr_barrier(void)
-{
-
-	__asm__ __volatile__("" ::: "memory");
-	return;
-}
-
 /*
  * Atomic fetch-and-store operations.
  */

include/gcc/x86_64/ck_pr.h

@@ -79,14 +79,6 @@ CK_PR_FENCE(memory, "mfence")
 
 #undef CK_PR_FENCE
 
-CK_CC_INLINE static void
-ck_pr_barrier(void)
-{
-
-	__asm__ __volatile__("" ::: "memory");
-	return;
-}
-
 /*
  * Atomic fetch-and-store operations.
  */