jeremybarnes/jml — pull request #8 by dohse (2013-09-24 08:25:50+00:00)
Title: Fix problem with cmp_xchg when double

- Gcc 4.8 is not correctly optimizing the code when using cmp_xchg
assembly instruction together with double. This change will fix it by
first converting the double to uint64_t and then calling the cmp_xchg
instruction.