https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66801
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hjl.tools at gmail dot com --- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> --- Also fails for HJ https://gcc.gnu.org/ml/gcc-regression/2015-07/msg00224.html, from what I can see it's plain LTO/FDO bootstrap (but with checking enabled and multilibs). I suppose using LTO really means the bug might be hard to trigger. Now trying your config.