--- a/hotspot/src/share/vm/utilities/globalDefinitions.hpp Sun Aug 25 21:21:18 2013 -0400
+++ b/hotspot/src/share/vm/utilities/globalDefinitions.hpp Fri Aug 16 13:22:32 2013 +0200
@@ -402,6 +402,14 @@
#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);
}
@@ -414,6 +422,14 @@
#define is_size_aligned_(size, alignment) ((size) == (align_size_up_(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);
+}
+
// Align objects by rounding up their size, in HeapWord units.
#define align_object_size_(size) align_size_up_(size, MinObjAlignment)