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[3.10] gh-94841: Ensure arena_map_get() is inlined in PyObject_Free() (GH-94842)

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Need to define ALWAYS_INLINE macro for 3.10.

Co-authored-by: neonene <53406459+neonene@users.noreply.github.com>
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Neil Schemenauer 2022-07-14 17:26:40 -07:00 • committed by GitHub
parent 1cf0305ba5
commit 5d26f85521
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2 changed files with 12 additions and 1 deletions
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1
Misc/NEWS.d/next/Build/2022-07-14-02-45-44.gh-issue-94841.lLRTdf.rst Normal file
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@ -0,0 +1 @@
Fix the possible performance regression of :c:func:`PyObject_Free` compiled with MSVC version 1932.

12
Objects/obmalloc.c
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@ -1397,9 +1397,19 @@ static int arena_map_bot_count;
static arena_map_bot_t arena_map_root;
#endif
#if defined(Py_DEBUG)
# define ALWAYS_INLINE
#elif defined(__GNUC__) || defined(__clang__) || defined(__INTEL_COMPILER)
# define ALWAYS_INLINE __attribute__((always_inline))
#elif defined(_MSC_VER)
# define ALWAYS_INLINE __forceinline
#else
# define ALWAYS_INLINE
#endif
/* 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 ALWAYS_INLINE arena_map_bot_t *
arena_map_get(block *p, int create)
{
#ifdef USE_INTERIOR_NODES