[Bug target/29256] [4.8/4.9/5/6 regression] loop performance regression

wschmidt at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed May 20 12:45:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29256

--- Comment #53 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
I'm not a fan of a tree-level unroller.  It's impossible to make good decisions
about unroll factors that early.  But your second approach sounds quite
promising to me.



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