Mercurial > hg > graal-jvmci-8
diff src/share/vm/runtime/atomic.cpp @ 113:ba764ed4b6f2
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 |
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--- 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); +}