> Though there's a slight (<1%) overall improvement on Exynos M1, there just were > too many significant (<-3%) regressions for a few significant improvements for me > to be comfortable with -frename-registers being a generic default for AArch64. > > I'll run some larger benchmarks tonight, but I'm leaning towards having it as a > target specific extra tuning option.
The results are in and -frename-registers is not a good idea for Exynos M1. Thank you, -- Evandro Menezes Austin, TX