[Bug rtl-optimization/58726] [4.7/4.8/4.9 Regression] wrong code at -Os on x86_64-linux-gnu (affecting trunk/4.7/4.6, but not 4.8)

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58726

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31366
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31366&action=edit
gcc49-pr58726.patch

Untested patch that does that, fixes the testcase.