--- include/gcc/ppc/ck_pr.h	2024-03-25 05:26:48.000000000 +0800
+++ include/gcc/ppc/ck_pr.h	2024-05-18 04:17:00.000000000 +0800
@@ -54,9 +54,13 @@
 CK_CC_INLINE static void
 ck_pr_stall(void)
 {
-
+#ifdef __APPLE__
+	__asm__ __volatile__("or r1, r1, r1;"
+			     "or r2, r2, r2;" ::: "memory");
+#else
 	__asm__ __volatile__("or 1, 1, 1;"
 			     "or 2, 2, 2;" ::: "memory");
+#endif
 	return;
 }
 

--- include/gcc/ppc64/ck_pr.h	2024-03-25 05:26:48.000000000 +0800
+++ include/gcc/ppc64/ck_pr.h	2024-05-18 04:15:29.000000000 +0800
@@ -53,9 +53,13 @@
 CK_CC_INLINE static void
 ck_pr_stall(void)
 {
-
+#ifdef __APPLE__
+	__asm__ __volatile__("or r1, r1, r1;"
+			     "or r2, r2, r2;" ::: "memory");
+#else
 	__asm__ __volatile__("or 1, 1, 1;"
 			     "or 2, 2, 2;" ::: "memory");
+#endif
 	return;
 }