[Bug target/63661] -O2 miscompiles on OSX 10.10 Yosemite

[vbraun.name at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63661

--- Comment #1 from Volker Braun <vbraun.name at gmail dot com> ---
Created attachment 33822
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33822&action=edit
Output of gcc -v