[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390

--- Comment #32 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #30)
> I didn't close it because I wanted to see updated benchmark numbers.  Either
> I'll grab the benchmark, or if somebody else posts the latest numbers, we
> can close it or keep open depending on that.

gcc7 -O3:    LU              Mflops:  5444.74
gcc7 -Ofast: LU              Mflops:  5385.51
gcc6 -O3:    LU              Mflops:  5515.91
gcc6 -Ofast: LU              Mflops:  5487.94

so there's a <2% regression remaining (noise level is ~0.5%).