--- old/src/os_cpu/aix_ppc/vm/atomic_aix_ppc.hpp	2017-08-22 15:36:15.961168125 +0200
+++ new/src/os_cpu/aix_ppc/vm/atomic_aix_ppc.hpp	2017-08-22 15:36:15.797168131 +0200
@@ -93,9 +93,21 @@
 #define strasm_nobarrier                  ""
 #define strasm_nobarrier_clobber_memory   ""
 
-inline jint     Atomic::add    (jint     add_value, volatile jint*     dest) {
+template<size_t byte_size>
+struct Atomic::PlatformAdd
+  : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
+{
+  template<typename I, typename D>
+  D add_and_fetch(I add_value, D volatile* dest) const;
+};
+
+template<>
+template<typename I, typename D>
+inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
+  STATIC_CAST(4 == sizeof(I));
+  STATIC_CAST(4 == sizeof(D));
 
-  unsigned int result;
+  D result;
 
   __asm__ __volatile__ (
     strasm_lwsync
@@ -108,13 +120,17 @@
     : /*%1*/"r" (add_value), /*%2*/"r" (dest)
     : "cc", "memory" );
 
-  return (jint) result;
+  return result;
 }
 
 
-inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
+template<>
+template<typename I, typename D>
+inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const {
+  STATIC_CAST(8 == sizeof(I));
+  STATIC_CAST(8 == sizeof(D));
 
-  long result;
+  D result;
 
   __asm__ __volatile__ (
     strasm_lwsync
@@ -127,13 +143,11 @@
     : /*%1*/"r" (add_value), /*%2*/"r" (dest)
     : "cc", "memory" );
 
-  return (intptr_t) result;
-}
-
-inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {
-  return (void*)add_ptr(add_value, (volatile intptr_t*)dest);
+  return result;
 }
 
+template<>
+struct Atomic::PlatformAdd<2>: Atomic::AddShortUsingInt {};
 
 inline void Atomic::inc    (volatile jint*     dest) {