[Bug target/57954] AVX missing vxorps (zeroing) before vcvtsi2s %edx, slow down AVX code

[vincenzo.innocente at cern dot ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57954

--- Comment #8 from vincenzo Innocente <vincenzo.innocente at cern dot ch> ---
thanks for getting in the trunk.
will be possible to back port to at least 4.8?
(this issue is there till 4.4!)