--- src/atomic_ops/sysdeps/gcc/powerpc.h	2006-03-29 09:49:14.000000000 +1100
+++ src/atomic_ops/sysdeps/gcc/powerpc.h	2007-08-27 10:51:00.000000000 +1000
@@ -72,7 +72,7 @@
   /* registers.  I always got "impossible constraint" when I	*/
   /* tried the "y" constraint.					*/
   __asm__ __volatile__ (
-    "lwz %0,%1\n"
+    "lwz%X1 %0,%1\n"
     "cmpw cr7,%0,%0\n"
     "bne- cr7,1f\n"
     "1: isync\n"