[Bug rtl-optimization/53533] [4.7/4.8 regression] vectorization causes loop unrolling test slowdown as measured by Adobe's C++Benchmark

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53533

--- Comment #18 from Richard Henderson <rth at gcc dot gnu.org> 2012-06-15 
21:04:49 UTC ---
See comments in http://gcc.gnu.org/ml/gcc-patches/2012-06/msg01081.html

It's not the vectorization costing, as previously suggested.