dim added a comment. In http://reviews.llvm.org/D13051#250921, @jroelofs wrote:
> In http://reviews.llvm.org/D13051#250910, @EricWF wrote: > > > @jroelofs @dim, could we fallback to the __sync_* builtins on arm? > The actual implementations of these __sync builtins should still come from somewhere, as they will also be libcalls, right? > @dim would need armv4-flavored implementations of them in compiler-rt (if > that's what he's using)... the existing ones use instructions that v4 doesn't > have. Andrew Turner, a fellow FreeBSD developer, has added them pretty quickly, in https://svnweb.freebsd.org/base?view=revision&revision=288125. So I have now reverted the ugly workaround in FreeBSD that disabled _LIBCPP_HAS_ATOMIC_BUILTINS for arm < v6. http://reviews.llvm.org/D13051 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
