Add symbol constant for min instrumented opcode.

Include/cpython/code.h

@@ -11,6 +11,7 @@ extern "C" {
 #define PY_MONITORING_EVENTS 16
 #define PY_MONITORING_UNGROUPED_EVENTS 14
 
+/* Table of which tools are active for each monitored event. */
 typedef struct _Py_Monitors {
     uint8_t tools[PY_MONITORING_UNGROUPED_EVENTS];
 } _Py_Monitors;

Lib/opcode.py

@@ -225,6 +225,7 @@ def pseudo_op(name, op, real_ops):
 def_op('CALL_INTRINSIC_2', 174)
 
 # Instrumented instructions
+MIN_INSTRUMENTED_OPCODE = 238
 
 def_op('INSTRUMENTED_POP_JUMP_IF_NONE', 238)
 def_op('INSTRUMENTED_POP_JUMP_IF_NOT_NONE', 239)

Lib/test/test__opcode.py

@@ -20,8 +20,7 @@ def test_stack_effect(self):
         # All defined opcodes
         has_arg = dis.hasarg
         for name, code in filter(lambda item: item[0] not in dis.deoptmap, dis.opmap.items()):
-            if code >= 230:
-                # Opcodes 230 and up are internal for instrumentation
+            if code >= opcode.MIN_INSTRUMENTED_OPCODE:
                 continue
             with self.subTest(opname=name):
                 if code not in has_arg:
@@ -50,8 +49,7 @@ def test_stack_effect_jump(self):
         has_exc = dis.hasexc
         has_jump = dis.hasjabs + dis.hasjrel
         for name, code in filter(lambda item: item[0] not in dis.deoptmap, dis.opmap.items()):
-            if code >= 230:
-                # Opcodes 230 and up are internal for instrumentation
+            if code >= opcode.MIN_INSTRUMENTED_OPCODE:
                 continue
             with self.subTest(opname=name):
                 if code not in has_arg:

Tools/build/generate_opcode_h.py

@@ -89,6 +89,7 @@ def main(opcode_py, outfile='Include/opcode.h', internaloutfile='Include/interna
     HAVE_ARGUMENT = opcode["HAVE_ARGUMENT"]
     MIN_PSEUDO_OPCODE = opcode["MIN_PSEUDO_OPCODE"]
     MAX_PSEUDO_OPCODE = opcode["MAX_PSEUDO_OPCODE"]
+    MIN_INSTRUMENTED_OPCODE = opcode["MIN_INSTRUMENTED_OPCODE"]
 
     NUM_OPCODES = len(opname)
     used = [ False ] * len(opname)
@@ -117,6 +118,8 @@ def main(opcode_py, outfile='Include/opcode.h', internaloutfile='Include/interna
                     fobj.write(DEFINE.format("HAVE_ARGUMENT", HAVE_ARGUMENT))
                 if op == MIN_PSEUDO_OPCODE:
                     fobj.write(DEFINE.format("MIN_PSEUDO_OPCODE", MIN_PSEUDO_OPCODE))
+                if op == MIN_INSTRUMENTED_OPCODE:
+                    fobj.write(DEFINE.format("MIN_INSTRUMENTED_OPCODE", MIN_INSTRUMENTED_OPCODE))
 
                 fobj.write(DEFINE.format(name, op))