gh-135755: Make Py_TAIL_CALL_INTERP macro private (#138981)

Rename Py_TAIL_CALL_INTERP to _Py_TAIL_CALL_INTERP.

(cherry picked from commit 6504f20)

Author: vstinner

Lib/test/test_generated_cases.py

@@ -107,7 +107,7 @@
       <PreprocessorDefinitions Condition="$(IncludeExternals)">_Py_HAVE_ZLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(UseJIT)' == 'true'">_Py_JIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(UseTIER2)' != '' and '$(UseTIER2)' != '0'">_Py_TIER2=$(UseTIER2);%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <PreprocessorDefinitions Condition="'$(UseTailCallInterp)' == 'true'">Py_TAIL_CALL_INTERP=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(UseTailCallInterp)' == 'true'">_Py_TAIL_CALL_INTERP=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(WITH_COMPUTED_GOTOS)' != ''">HAVE_COMPUTED_GOTOS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(DisableRemoteDebug)' != 'true'">Py_REMOTE_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>

PCbuild/pythoncore.vcxproj

@@ -1169,7 +1169,7 @@ dummy_func(
             tstate->current_frame = frame->previous;
             assert(!_PyErr_Occurred(tstate));
             PyObject *result = PyStackRef_AsPyObjectSteal(retval);
-#if !Py_TAIL_CALL_INTERP
+#if !_Py_TAIL_CALL_INTERP
             assert(frame == &entry.frame);
 #endif
 #ifdef _Py_TIER2
@@ -1458,7 +1458,7 @@ dummy_func(
 
         tier1 inst(CLEANUP_THROW, (sub_iter, last_sent_val, exc_value_st -- none, value)) {
             PyObject *exc_value = PyStackRef_AsPyObjectBorrow(exc_value_st);
-            #if !Py_TAIL_CALL_INTERP
+            #if !_Py_TAIL_CALL_INTERP
             assert(throwflag);
             #endif
             assert(exc_value && PyExceptionInstance_Check(exc_value));
@@ -5472,7 +5472,7 @@ dummy_func(
             }
 #endif
             RELOAD_STACK();
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
             int opcode;
 #endif
             DISPATCH();
@@ -5490,7 +5490,7 @@ dummy_func(
             if (frame->owner == FRAME_OWNED_BY_INTERPRETER) {
                 /* Restore previous frame and exit */
                 tstate->current_frame = frame->previous;
-#if !Py_TAIL_CALL_INTERP
+#if !_Py_TAIL_CALL_INTERP
                 assert(frame == &entry.frame);
 #endif
 #ifdef _Py_TIER2
@@ -5526,7 +5526,7 @@ dummy_func(
             assert(!_PyErr_Occurred(tstate));
         #endif
             RELOAD_STACK();
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
             int opcode;
 #endif
             DISPATCH();

Python/bytecodes.c

@@ -971,7 +971,7 @@ _PyObjectArray_Free(PyObject **array, PyObject **scratch)
 /* This setting is reversed below following _PyEval_EvalFrameDefault */
 #endif
 
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
 #include "opcode_targets.h"
 #include "generated_cases.c.h"
 #endif
@@ -1002,15 +1002,15 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
     _Py_EnsureTstateNotNULL(tstate);
     CALL_STAT_INC(pyeval_calls);
 
-#if USE_COMPUTED_GOTOS && !Py_TAIL_CALL_INTERP
+#if USE_COMPUTED_GOTOS && !_Py_TAIL_CALL_INTERP
 /* Import the static jump table */
 #include "opcode_targets.h"
 #endif
 
 #ifdef Py_STATS
     int lastopcode = 0;
 #endif
-#if !Py_TAIL_CALL_INTERP
+#if !_Py_TAIL_CALL_INTERP
     uint8_t opcode;    /* Current opcode */
     int oparg;         /* Current opcode argument, if any */
     assert(tstate->current_frame == NULL || tstate->current_frame->stackpointer != NULL);
@@ -1082,7 +1082,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
         next_instr = frame->instr_ptr;
         monitor_throw(tstate, frame, next_instr);
         stack_pointer = _PyFrame_GetStackPointer(frame);
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
 #   if Py_STATS
         return _TAIL_CALL_error(frame, stack_pointer, tstate, next_instr, 0, lastopcode);
 #   else
@@ -1098,7 +1098,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
     _PyExecutorObject *current_executor = NULL;
     const _PyUOpInstruction *next_uop = NULL;
 #endif
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
 #   if Py_STATS
         return _TAIL_CALL_start_frame(frame, NULL, tstate, NULL, 0, lastopcode);
 #   else

Python/ceval.c

@@ -78,7 +78,7 @@
 #   define TAIL_CALL_ARGS frame, stack_pointer, tstate, next_instr, oparg
 #endif
 
-#if Py_TAIL_CALL_INTERP
+#if _Py_TAIL_CALL_INTERP
     // Note: [[clang::musttail]] works for GCC 15, but not __attribute__((musttail)) at the moment.
 #   define Py_MUSTTAIL [[clang::musttail]]
 #   define Py_PRESERVE_NONE_CC __attribute__((preserve_none))