Port LOAD_ATTR to adaptive interpreter

[markshannon]

BPO	44337
Nosy	@gvanrossum, @markshannon, @brandtbucher, @isidentical
PRs	bpo-44337: Port LOAD_ATTR to PEP 659 adaptive interpreter #26595 bpo-44337: Remove accidentally duplicated STAT_INC #26718 bpo-44337: Improve LOAD_ATTR specialization #26759 bpo-44337: Shrink the LOAD_ATTR/STORE_ATTR caches #31517

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2021-06-10.08:38:00.603>
created_at = <Date 2021-06-07.18:03:40.390>
labels = []
title = 'Port LOAD_ATTR to adaptive interpreter'
updated_at = <Date 2022-02-23.18:53:33.400>
user = 'https://github.com/markshannon'

bugs.python.org fields:

activity = <Date 2022-02-23.18:53:33.400>
actor = 'brandtbucher'
assignee = 'none'
closed = True
closed_date = <Date 2021-06-10.08:38:00.603>
closer = 'Mark.Shannon'
components = []
creation = <Date 2021-06-07.18:03:40.390>
creator = 'Mark.Shannon'
dependencies = []
files = []
hgrepos = []
issue_num = 44337
keywords = ['patch']
message_count = 6.0
messages = ['395271', '395346', '395513', '396150', '396225', '413846']
nosy_count = 4.0
nosy_names = ['gvanrossum', 'Mark.Shannon', 'brandtbucher', 'BTaskaya']
pr_nums = ['26595', '26718', '26759', '31517']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue44337'
versions = []

[markshannon]

Port the implementation of LOAD_ATTR to the new adaptive interpreter

[isidentical]

Mark would you mind sharing your opinions on this: https://bugs.python.org/issue44313 (should we still keep generating LOAD_METHOD/CALL_METHOD for potential objects imported through from x import y, or they also generate LOAD_ATTR/CALL_FUNCTION).

[markshannon]

New changeset e117c02 by Mark Shannon in branch 'main':
bpo-44337: Port LOAD_ATTR to PEP-659 adaptive interpreter (GH-26595)
e117c02

[gvanrossum]

(That pull request doesn't have anything to do with this issue, but while testing it I did find a crash bug that I've bisected to this issue. See #26749 (comment).)

[markshannon]

New changeset fb68791 by Mark Shannon in branch 'main':
bpo-44337: Improve LOAD_ATTR specialization (GH-26759)
fb68791

[brandtbucher]

New changeset 281ea9c by Brandt Bucher in branch 'main':
bpo-44337: Shrink the LOAD_ATTR/STORE_ATTR caches (GH-31517)
281ea9c