https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63843
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-11-13 Target Milestone|--- |5.0 Summary|wrong code generation at |[5 Regression] wrong code |-O1 and higher |generation at -O1 and | |higher Ever confirmed|0 |1 --- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> --- It is caused by r217118.