Richard Henderson <richard.hender...@linaro.org> writes:
> Instead of computing an artifical "class" bitmask then > converting that to the fprf value, compute the final > value from the start. > > Reorder the tests to check the most likely cases first. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> We see a slight performance boost although my baseline run was a bit noisy: ➜ # before 🕙07:31:14 alex@zen:qemu.git/builds/all (b44e6e6) (REBASING 1/2) [$?] took 10m ➜ hyperfine -w 2 "./qemu-ppc64 ~/lsrc/tests/lame.git-svn/builds/ppc64/frontend/lame -h pts-trondheim-3.wav pts-trondheim-3.mp3" Benchmark 1: ./qemu-ppc64 ~/lsrc/tests/lame.git-svn/builds/ppc64/frontend/lame -h pts-trondheim-3.wav pts-trondheim-3.mp3 Time (mean ± σ): 649.858 s ± 58.351 s [User: 649.272 s, System: 0.448 s] Range (min … max): 616.148 s … 764.585 s 10 runs # after hyperfine "./qemu-ppc64 ~/lsrc/tests/lame.git-svn/builds/ppc64/frontend/lame -h pts-trondheim-3.wav pts-trondheim-3.mp3" Benchmark 1: ./qemu-ppc64 ~/lsrc/tests/lame.git-svn/builds/ppc64/frontend/lame -h pts-trondheim-3.wav pts-trondheim-3.mp3 Time (mean ± σ): 599.968 s ± 8.014 s [User: 599.656 s, System: 0.181 s] Range (min … max): 591.171 s … 615.912 s 10 runs Anyway Tested-by: Alex Bennée <alex.ben...@linaro.org> Reviewed-by: Alex Bennée <alex.ben...@linaro.org> -- Alex Bennée Virtualisation Tech Lead @ Linaro
