[Bug middle-end/70773] Profiled sudoku solver slower due to lack of sdiv/udiv
tulipawn at gmail dot com
gcc-bugzilla@gcc.gnu.org
Tue Oct 4 14:37:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70773
--- Comment #7 from PeteVine <tulipawn at gmail dot com> ---
Even though it's probably a dfifferent issue (affecting GCC6/7), profiling
makes the solver about 2-3% slower on aarch64:
profiled/non-profiled
gcc5.4 799/875
gcc6.2 790/773
gcc7.0 752/730
But guess what, if you grep for `sdiv`, there's 9 of them in the profiled asm
file versus just 6 in the non-profiled version. FWIW, so I'm attaching the
files.
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