From a8b9350964f43cb648c98c179c8037fbf3ff8a7d Mon Sep 17 00:00:00 2001
From: Mark Shannon <mark@hotpy.org>
Date: Wed, 13 Oct 2021 14:19:34 +0100
Subject: bpo-45340: Don't create object dictionaries unless actually needed
 (GH-28802)

* Never change types' cached keys. It could invalidate inline attribute objects.

* Lazily create object dictionaries.

* Update specialization of LOAD/STORE_ATTR.

* Don't update shared keys version for deletion of value.

* Update gdb support to handle instance values.

* Rename SPLIT_KEYS opcodes to INSTANCE_VALUE.
---
 Lib/opcode.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'Lib/opcode.py')

diff --git a/Lib/opcode.py b/Lib/opcode.py
index 5d35674688..efd6aefccc 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -231,7 +231,7 @@ _specialized_instructions = [
     "BINARY_SUBSCR_DICT",
     "JUMP_ABSOLUTE_QUICK",
     "LOAD_ATTR_ADAPTIVE",
-    "LOAD_ATTR_SPLIT_KEYS",
+    "LOAD_ATTR_INSTANCE_VALUE",
     "LOAD_ATTR_WITH_HINT",
     "LOAD_ATTR_SLOT",
     "LOAD_ATTR_MODULE",
@@ -242,8 +242,9 @@ _specialized_instructions = [
     "LOAD_METHOD_CACHED",
     "LOAD_METHOD_CLASS",
     "LOAD_METHOD_MODULE",
+    "LOAD_METHOD_NO_DICT",
     "STORE_ATTR_ADAPTIVE",
-    "STORE_ATTR_SPLIT_KEYS",
+    "STORE_ATTR_INSTANCE_VALUE",
     "STORE_ATTR_SLOT",
     "STORE_ATTR_WITH_HINT",
     # Super instructions
-- 
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