On Thu, Aug 15, 2013 at 08:13:34PM +0200, Dimitry Andric wrote: > Alternatively, we could attempt to figure out why gcc doesn't want to > inline those 64 bit builtins on FreeBSD. It seems to have no problem > doing so on the first Linux box I tried...
Does the linux box defaults to pentium or higher for -march ? 64 bit atomics cannot be implemented in usermode on i386 on processors which do not have cmpxchg8b instruction.
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