bpo-35059: Add Py_STATIC_INLINE() macro (GH-10093)
* Add Py_STATIC_INLINE() macro to declare a "static inline" function.
If the compiler supports it, try to always inline the function even if no
optimization level was specified.
* Modify pydtrace.h to use Py_STATIC_INLINE() when WITH_DTRACE is
not defined.
* Add an unit test on Py_DECREF() to make sure that
_Py_NegativeRefcount() reports the correct filename.
diff --git a/Include/pyport.h b/Include/pyport.h
index f4b547a..2f87f53 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -164,20 +164,37 @@
*/
#if defined(_MSC_VER)
-#if defined(PY_LOCAL_AGGRESSIVE)
-/* enable more aggressive optimization for visual studio */
-#pragma optimize("agtw", on)
+# if defined(PY_LOCAL_AGGRESSIVE)
+ /* enable more aggressive optimization for visual studio */
+# pragma optimize("agtw", on)
#endif
-/* ignore warnings if the compiler decides not to inline a function */
-#pragma warning(disable: 4710)
-/* fastest possible local call under MSVC */
-#define Py_LOCAL(type) static type __fastcall
-#define Py_LOCAL_INLINE(type) static __inline type __fastcall
+ /* ignore warnings if the compiler decides not to inline a function */
+# pragma warning(disable: 4710)
+ /* fastest possible local call under MSVC */
+# define Py_LOCAL(type) static type __fastcall
+# define Py_LOCAL_INLINE(type) static __inline type __fastcall
#else
-#define Py_LOCAL(type) static type
-#define Py_LOCAL_INLINE(type) static inline type
+# define Py_LOCAL(type) static type
+# define Py_LOCAL_INLINE(type) static inline type
#endif
+/* Declare a "static inline" function. Typical usage:
+
+ Py_STATIC_INLINE(int) add(int a, int b) { return a + b; }
+
+ If the compiler supports it, try to always inline the function even if no
+ optimization level was specified. */
+#if defined(__GNUC__) || defined(__clang__)
+# define Py_STATIC_INLINE(TYPE) \
+ __attribute__((always_inline)) static inline TYPE
+#elif defined(_MSC_VER)
+# define Py_STATIC_INLINE(TYPE) \
+ static __forceinline TYPE
+#else
+# define Py_STATIC_INLINE(TYPE) static inline TYPE
+#endif
+
+
/* Py_MEMCPY is kept for backwards compatibility,
* see https://bugs.python.org/issue28126 */
#define Py_MEMCPY memcpy