https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83359
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Both loops guarded by the IFN are parallelized with the loop noted by the IFN outlined and the autopar scalar copy being a new loop. Not sure what to do best, eventually not processing those loops with GRAPHITE/autopar and/or being more rigid in throwing it away. In theory expanding the IFN as just its arg is valid.