https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66375
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |6.0 Summary|[4.8/4.9/5/6 Regression] |[4.8/4.9/5 Regression] |wrong code at -O2 and -O3 |wrong code at -O2 and -O3 |on x86_64-linux-gnu |on x86_64-linux-gnu Known to fail| |5.1.0 --- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> --- Thanks, I am going to do another round of backporting today or tomorrow.