[Bug target/55666] Use scratch register to avoid save/restore of callee saved register

[carrot at google dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55666



--- Comment #1 from Carrot <carrot at google dot com> 2012-12-12 19:48:30 UTC 
---

Created attachment 28938

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28938

testcase