bpo-33325: Optimize sequences of constants in the compiler #6559
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Replace
LOAD_CONST c1, LOAD_CONST c2, ... LOAD_CONST cn, BUILD_LIST n
with
LOAD_CONST (c1, c2, ... cn), BUILD_LIST_UNPACK 1
.Replace
LOAD_CONST c1, LOAD_CONST c2, ... LOAD_CONST cn, BUILD_SET n
with
LOAD_CONST frozenset({c1, c2, ... cn}), BUILD_SET_UNPACK 1
.Replace
LOAD_CONST c1, LOAD_CONST c2, ... LOAD_CONST cn
with
LOAD_CONST (c1, c2, ... cn), UNPACK_SEQUENCE n
.Remove unused constants.
https://bugs.python.org/issue33325