Fix PPC Mac OS X memory access problem in SMP.h (#1362)

diff --git a/includes/SMP.h b/includes/SMP.h
index bba80f7..74fbf9a 100644 (file)
--- a/includes/SMP.h
+++ b/includes/SMP.h
@@ -75,7 +75,7 @@ xchg(StgPtr p, StgWord w)
         "1:     lwarx     %0, 0, %2\n"
         "       stwcx.    %1, 0, %2\n"
         "       bne-      1b"
-        :"=r" (result)
+        :"=&r" (result)
         :"r" (w), "r" (p)
     );
 #elif sparc_HOST_ARCH