https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68404
--- Comment #28 from Michael Meissner <meissner at gcc dot gnu.org> --- I agree the 'fix' was a work around. I think the real fix is to make the addresses into normal addresses but I need some way of marking the address to say this is ok as a fused address, but not as a normal non-fused address. However, such changes are not appropriate for stage4. So I will come up with a patch to just disable -mcpu=power8 from turning fusion on. I did some tests recently on a power8, and fusion as it is currently implemented does not help the Spec 2006 benchmarks all that much (most benchmarks are the same speed or 1% slower, with perlbench being 2% slower if I disable fusion).
