[Bug tree-optimization/58570] [4.9 Regression] wrong code at -Os and above on x86_64-linux-gnu (both 32-bit and 64-bit modes)

[bernd.edlinger at hotmail dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58570

--- Comment #2 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
Created attachment 30962
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30962&action=edit
for a possible fix

comments?