https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63302
--- Comment #21 from Jeffrey A. Law <law at redhat dot com> --- John, I know those PA boxes are slow, but if you could try Jakub's patch, it'd be appreciated. BTW, are you using strictly PA 2.0 (PA8000+) hardware? I was pondering doing a reimplementation of pa_combine_instructions using Bin's infrastructure for insn fusion as part of the review process for that code and having a box where I could do performance testing would be helpful. I can certainly test on PA8000+ hardware (assuming mine doesn't overheat), but fmpyadd/fmpysub tend to degrade performance on the more modern hardware. I guess I could look for a performance degradation and call that a victory since that would indicate we're doing a better job at fusing the independent FP mult and add/sub instructions.
