[Bug tree-optimization/59644] [4.9 Regression] r206243 miscompiles Linux kernel

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59644

--- Comment #17 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
If I add "pushq   %r10" and "popq    %r10" by hand, the kernel boots fine.