[Bug target/57796] AVX2 gather vectorization: code bloat and reduction of performance

[vincenzo.innocente at cern dot ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57796

--- Comment #5 from vincenzo Innocente <vincenzo.innocente at cern dot ch> ---
so with latest 4.9 
gcc version 4.10.0 20140611 (experimental) [trunk revision 211467] (GCC) 
situation has not changed much (the scalar version is now faster!):
I think that the cost of gather instructions is still under-estimated