--- a/src/hotspot/os_cpu/linux_ppc/atomic_linux_ppc.hpp	Mon Nov 25 12:32:07 2019 +0100
+++ b/src/hotspot/os_cpu/linux_ppc/atomic_linux_ppc.hpp	Mon Nov 25 12:32:40 2019 +0100
@@ -153,8 +153,8 @@
 
 template<>
 template<typename T>
-inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
-                                             T volatile* dest,
+inline T Atomic::PlatformXchg<4>::operator()(T volatile* dest,
+                                             T exchange_value,
                                              atomic_memory_order order) const {
   // Note that xchg doesn't necessarily do an acquire
   // (see synchronizer.cpp).
@@ -192,8 +192,8 @@
 
 template<>
 template<typename T>
-inline T Atomic::PlatformXchg<8>::operator()(T exchange_value,
-                                             T volatile* dest,
+inline T Atomic::PlatformXchg<8>::operator()(T volatile* dest,
+                                             T exchange_value,
                                              atomic_memory_order order) const {
   STATIC_ASSERT(8 == sizeof(T));
   // Note that xchg doesn't necessarily do an acquire