[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 #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 31547
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31547&action=edit
testcase