https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63602
Arseny Solokha <asolokha at gmx dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |4.9.2 Summary|Wrong code w/ -O2 |[5/6 Regression] Wrong code |-ftree-loop-linear |w/ -O2 -ftree-loop-linear Known to fail|4.8.3, 4.9.1, 5.0 |5.1.0, 6.0 --- Comment #2 from Arseny Solokha <asolokha at gmx dot com> --- I've just checked it and found that gcc 4.9.2 compiles it correctly. So, relabelling as a regression.