https://bugs.kde.org/show_bug.cgi?id=384337
--- Comment #8 from Julian Seward <jsew...@acm.org> --- One thing you could try is this: ./vg-in-place --vex-regalloc-version=2 \ --profile-flags=00000010 [whatever tool and args you like] ./perf/bz2 x That both shows you the hot blocks and also the regalloc output for them. and then compare against the same for the v3 allocator. Because perf/bz2 is very deterministic, you should be able to find matching block-pairs easily. It might also be worth trying with perf/fbench and ffbench because they are small, have hot loops and use FP registers a lot. Also, maybe worth comparing on x86 rather than amd64? Given that there are fewer allocatable registers on x86, differences in spilling strategies between v2 and v3 might be more obvious. (Just a guess.) -- You are receiving this mail because: You are watching all bug changes.
