--- old/src/share/vm/utilities/globalDefinitions.hpp	2013-07-02 17:37:41.000000000 +0200
+++ new/src/share/vm/utilities/globalDefinitions.hpp	2013-07-02 17:37:41.000000000 +0200
@@ -365,6 +365,14 @@
 
 #define align_size_up_(size, alignment) (((size) + ((alignment) - 1)) & ~((alignment) - 1))
 
+inline bool is_size_aligned(size_t size, size_t alignment) {
+  return align_size_up_(size, alignment) == size;
+}
+
+inline bool is_ptr_aligned(void* ptr, size_t alignment) {
+  return align_size_up_((intptr_t)ptr, (intptr_t)alignment) == (intptr_t)ptr;
+}
+
 inline intptr_t align_size_up(intptr_t size, intptr_t alignment) {
   return align_size_up_(size, alignment);
 }
@@ -375,6 +383,18 @@
   return align_size_down_(size, alignment);
 }
 
+inline void* align_ptr_up(void* ptr, size_t alignment) {
+  return (void*)align_size_up((intptr_t)ptr, (intptr_t)alignment);
+}
+
+inline void* align_ptr_down(void* ptr, size_t alignment) {
+  return (void*)align_size_down((intptr_t)ptr, (intptr_t)alignment);
+}
+
+inline void* offset_ptr(void* ptr, size_t offset) {
+  return (void*)((intptr_t)ptr + (intptr_t)offset);
+}
+
 // Align objects by rounding up their size, in HeapWord units.
 
 #define align_object_size_(size) align_size_up_(size, MinObjAlignment)