https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67892
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Known to work| |4.9.3 Keywords| |wrong-code Last reconfirmed| |2015-10-08 CC| |law at gcc dot gnu.org Ever confirmed|0 |1 Summary|Wrong code at -O1 and above |[5/6 Regression] Wrong code | |at -O1 and above Target Milestone|--- |5.3 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. Sounds like a FSM threading bug, confirmed on trunk as well.