[Bug target/63908] [e500v2] "float_bessel"case failed on e500v2 platforms

[leimaohui at cn dot fujitsu.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63908

--- Comment #6 from leimaohui <leimaohui at cn dot fujitsu.com> ---
Created attachment 34294
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34294&action=edit
the patch backport to gcc 4.9.1