[Bug target/53040] nested functions may trash floating point registers

[amodra at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040

--- Comment #1 from Alan Modra <amodra at gmail dot com> 2012-04-19 15:24:30 
UTC ---
Created attachment 27191
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27191
obvious fix