https://bugs.freedesktop.org/show_bug.cgi?id=83436
--- Comment #27 from smoki smoki00790@gmail.com --- OpenJK even with -O0 is ~2.5x times faster then -O2 -mtune=generic :)
Anyway, just found code example from bug 83442 is useful here too, so maybe more people can easely test if they are affected.
32bit on commit 37d43ebb28ce8be38f3d9b0805b8b14354ce786d:
-mtune=generic 4-7ms -mtune=native 6-10ms -O0 6-10ms
32bit current git:
-mtune=generic 197-200ms -mtune=native 5-8ms