svn commit: r254344 - projects/atomic64/sys/i386/include
Jung-uk Kim
jkim at FreeBSD.org
Thu Aug 15 00:13:26 UTC 2013
Author: jkim
Date: Thu Aug 15 00:13:25 2013
New Revision: 254344
URL: http://svnweb.freebsd.org/changeset/base/254344
Log:
Remove "memory" from clobber list for atomic_swap_64_i386(). This function
does not have any variants with memory barriers.
Modified:
projects/atomic64/sys/i386/include/atomic.h
Modified: projects/atomic64/sys/i386/include/atomic.h
==============================================================================
--- projects/atomic64/sys/i386/include/atomic.h Thu Aug 15 00:03:17 2013 (r254343)
+++ projects/atomic64/sys/i386/include/atomic.h Thu Aug 15 00:13:25 2013 (r254344)
@@ -216,8 +216,7 @@ atomic_swap_64_i386(volatile uint64_t *p
"+m" (*q), /* 1 */
"+m" (*(q + 1)) /* 2 */
: "r" ((uint32_t)v), /* 3 */
- "r" ((uint32_t)(v >> 32)) /* 4 */
- : "memory");
+ "r" ((uint32_t)(v >> 32))); /* 4 */
return (res);
}
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