Make multiple passes of the peephole optimizer until bytecode cannot be optimized further #81452

assignee = 'https://github.com/tim-one'
closed_at = <Date 2021-07-13.19:51:59.766>
created_at = <Date 2019-06-14.01:58:30.571>
labels = ['interpreter-core', '3.9']
title = 'Make multiple passes of the peephole optimizer until bytecode cannot be optimized further'
updated_at = <Date 2021-07-13.19:51:59.766>
user = 'https://github.com/pablogsal'

activity = <Date 2021-07-13.19:51:59.766>
actor = 'pablogsal'
assignee = 'tim.peters'
closed = True
closed_date = <Date 2021-07-13.19:51:59.766>
closer = 'pablogsal'
components = ['Interpreter Core']
creation = <Date 2019-06-14.01:58:30.571>
creator = 'pablogsal'
dependencies = []
files = []
hgrepos = []
issue_num = 37271
keywords = ['patch']
message_count = 9.0
messages = ['345543', '345638', '345701', '345705', '345706', '345707', '345710', '345713', '345715']
nosy_count = 5.0
nosy_names = ['tim.peters', 'brett.cannon', 'rhettinger', 'serhiy.storchaka', 'pablogsal']
pr_nums = ['14068']
priority = 'normal'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue37271'
versions = ['Python 3.9']