From 9b3f7792093c533608f70043aa2a7daf7f903a16 Mon Sep 17 00:00:00 2001
From: neonene <53406459+neonene@users.noreply.github.com>
Date: Fri, 15 Jul 2022 03:33:25 +0900
Subject: [PATCH] gh-94841: Ensure arena_map_get() is inlined in
PyObject_Free() (#94842)
---
.../next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst | 1 +
Objects/obmalloc.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
create mode 100644 Misc/NEWS.d/next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst
diff --git a/Misc/NEWS.d/next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst b/Misc/NEWS.d/next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst
new file mode 100644
index 00000000000..f7ad4f88a51
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst
@@ -0,0 +1 @@
+Fix the possible performance regression of :c:func:`PyObject_Free` compiled with MSVC version 1932.
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
index 78a6f01a096..1d487d8e807 100644
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -1446,7 +1446,7 @@ static arena_map_bot_t arena_map_root;
/* Return a pointer to a bottom tree node, return NULL if it doesn't exist or
* it cannot be created */
-static arena_map_bot_t *
+static Py_ALWAYS_INLINE arena_map_bot_t *
arena_map_get(block *p, int create)
{
#ifdef USE_INTERIOR_NODES
--
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