https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91433
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Target| |x86_64-linux Status|UNCONFIRMED |WAITING Last reconfirmed| |2019-08-13 Component|c |middle-end Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- 9.0 is not a released GCC version, the first release from the GCC 9 branch is versioned GCC 9.1.0 with GCC 9.2.0 just released yesterday. I assume you tested on x86_64-linux. What compile-flags did you use and what machine sub-architecture are you running on (in case phoronix uses -march=native).