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bpo-35059: Add Py_STATIC_INLINE() macro (GH-10093)

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* 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.
This commit is contained in:
Victor Stinner 2018-10-25 17:28:11 +02:00 • committed by GitHub
parent d03b775781
commit 18618e652c
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 92 additions and 36 deletions
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4
Include/object.h
View file

@ -729,8 +729,8 @@ you can count such references to the type object.)
*/
#ifdef Py_REF_DEBUG
PyAPI_DATA(Py_ssize_t) _Py_RefTotal;
PyAPI_FUNC(void) _Py_NegativeRefcount(const char *fname,
int lineno, PyObject *op);
PyAPI_FUNC(void) _Py_NegativeRefcount(const char *filename, int lineno,
PyObject *op);
PyAPI_FUNC(Py_ssize_t) _Py_GetRefTotal(void);
#define _Py_INC_REFTOTAL _Py_RefTotal++
#define _Py_DEC_REFTOTAL _Py_RefTotal--

44
Include/pydtrace.h
View file

@ -25,29 +25,29 @@ extern "C" {
/* Without DTrace, compile to nothing. */
static inline void PyDTrace_LINE(const char *arg0, const char *arg1, int arg2) {}
static inline void PyDTrace_FUNCTION_ENTRY(const char *arg0, const char *arg1, int arg2) {}
static inline void PyDTrace_FUNCTION_RETURN(const char *arg0, const char *arg1, int arg2) {}
static inline void PyDTrace_GC_START(int arg0) {}
static inline void PyDTrace_GC_DONE(int arg0) {}
static inline void PyDTrace_INSTANCE_NEW_START(int arg0) {}
static inline void PyDTrace_INSTANCE_NEW_DONE(int arg0) {}
static inline void PyDTrace_INSTANCE_DELETE_START(int arg0) {}
static inline void PyDTrace_INSTANCE_DELETE_DONE(int arg0) {}
static inline void PyDTrace_IMPORT_FIND_LOAD_START(const char *arg0) {}
static inline void PyDTrace_IMPORT_FIND_LOAD_DONE(const char *arg0, int arg1) {}
Py_STATIC_INLINE(void) PyDTrace_LINE(const char *arg0, const char *arg1, int arg2) {}
Py_STATIC_INLINE(void) PyDTrace_FUNCTION_ENTRY(const char *arg0, const char *arg1, int arg2) {}
Py_STATIC_INLINE(void) PyDTrace_FUNCTION_RETURN(const char *arg0, const char *arg1, int arg2) {}
Py_STATIC_INLINE(void) PyDTrace_GC_START(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_GC_DONE(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_INSTANCE_NEW_START(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_INSTANCE_NEW_DONE(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_INSTANCE_DELETE_START(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_INSTANCE_DELETE_DONE(int arg0) {}
Py_STATIC_INLINE(void) PyDTrace_IMPORT_FIND_LOAD_START(const char *arg0) {}
Py_STATIC_INLINE(void) PyDTrace_IMPORT_FIND_LOAD_DONE(const char *arg0, int arg1) {}
static inline int PyDTrace_LINE_ENABLED(void) { return 0; }
static inline int PyDTrace_FUNCTION_ENTRY_ENABLED(void) { return 0; }
static inline int PyDTrace_FUNCTION_RETURN_ENABLED(void) { return 0; }
static inline int PyDTrace_GC_START_ENABLED(void) { return 0; }
static inline int PyDTrace_GC_DONE_ENABLED(void) { return 0; }
static inline int PyDTrace_INSTANCE_NEW_START_ENABLED(void) { return 0; }
static inline int PyDTrace_INSTANCE_NEW_DONE_ENABLED(void) { return 0; }
static inline int PyDTrace_INSTANCE_DELETE_START_ENABLED(void) { return 0; }
static inline int PyDTrace_INSTANCE_DELETE_DONE_ENABLED(void) { return 0; }
static inline int PyDTrace_IMPORT_FIND_LOAD_START_ENABLED(void) { return 0; }
static inline int PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_LINE_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_FUNCTION_ENTRY_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_FUNCTION_RETURN_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_GC_START_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_GC_DONE_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_INSTANCE_NEW_START_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_INSTANCE_NEW_DONE_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_INSTANCE_DELETE_START_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_INSTANCE_DELETE_DONE_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_IMPORT_FIND_LOAD_START_ENABLED(void) { return 0; }
Py_STATIC_INLINE(int) PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED(void) { return 0; }
#endif /* !WITH_DTRACE */

37
Include/pyport.h
View file

@ -164,20 +164,37 @@ typedef int Py_ssize_clean_t;
*/
#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