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diff src/share/vm/runtime/atomic.cpp @ 113:ba764ed4b6f2

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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents a61af66fc99e
children d1605aabd0a1
line wrap: on
line diff
--- a/src/share/vm/runtime/atomic.cpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/src/share/vm/runtime/atomic.cpp	Sun Apr 13 17:43:42 2008 -0400
@@ -44,3 +44,15 @@
   }
   return cur_as_bytes[offset];
 }
+
+unsigned Atomic::xchg(unsigned int exchange_value, volatile unsigned int* dest) {
+  assert(sizeof(unsigned int) == sizeof(jint), "more work to do");
+  return (unsigned int)Atomic::xchg((jint)exchange_value, (volatile jint*)dest);
+}
+
+unsigned Atomic::cmpxchg(unsigned int exchange_value,
+                         volatile unsigned int* dest, unsigned int compare_value) {
+  assert(sizeof(unsigned int) == sizeof(jint), "more work to do");
+  return (unsigned int)Atomic::cmpxchg((jint)exchange_value, (volatile jint*)dest,
+                                       (jint)compare_value);
+}