New submission from Tim Peters <t...@python.org>:
x_divrem1() was recently (bpo-46406) changed to generate faster code for division, essentially nudging optimizing compilers into recognizing that modern processors compute the quotient and remainder with a single machine instruction. The same can be done for x_divrem(), although it's less valuable there because the HW division generally accounts for a much smaller percent of its total runtime. Still, it does cut a multiply and subtract out of the loop, and makes the code more obvious (since it brings x_divrem1() and x_divrem() back into synch). ---------- components: Interpreter Core messages: 411505 nosy: tim.peters priority: normal severity: normal stage: needs patch status: open title: Faster code for trial quotient in x_divrem type: performance _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46504> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
