> On 2017-05-24, at 20:26 , Xavier Morel <python-dev at masklinn.net> wrote: > >> On 2017-05-24, at 20:07 , Ben Hoyt <benhoyt at gmail.com> wrote: >> >> Hi folks, >> >> I was looking at some `dis` output today, and I was wondering if anyone has investigated optimizing Python (slightly) by adding special-case bytecodes for common expressions or statements involving constants? > > Python 3.6 added an opcode specifically for dicts with constant keys: > https://bugs.python.org/issue27140. Though I guess that's a slightly > different case as it's not a peephole-fused opcode. And followup, Python 2.7 did add fused opcodes related to conditional: http://bugs.python.org/issue4715.
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