[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



Richard Henderson <rth at gcc dot gnu.org> changed:



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--- Comment #22 from Richard Henderson <rth at gcc dot gnu.org> 2012-11-29 
21:17:05 UTC ---

Needs long-term work in pre-vectorization folding.