Code Clean: Remove specific bytecode support in dynamo for python3.8

test/dynamo/test_repros.py

@@ -4075,41 +4075,6 @@ def forward(self, **inp):
         res = torch.compile(mod, backend="eager", fullgraph=True)(**inputs)
         self.assertEqual(ref, res)
 
-    def test_call_finally_python_3_8(self):
-        # Issue - https://github.com/pytorch/pytorch/issues/97811
-        def make_fn(g):
-            def fn():
-                while True:
-                    try:
-                        print(g)
-                        break
-                    except Exception as _:
-                        break
-
-            return torch.compile(fn, backend="eager")
-
-        make_fn(None)()
-
-    def test_call_finally_python_3_8_2(self):
-        def f(x):
-            while x:
-                try:
-                    pass
-                except Exception as _:
-                    continue
-
-        torch.compile(f, backend="eager")(0)
-
-    def test_call_finally_opcode_python_3_8(self):
-        def fn():
-            try:
-                return torch.zeros(4)
-            finally:
-                return torch.ones(4)  # noqa: SIM107, B012
-
-        result = torch.compile(fn, backend="aot_eager")()
-        self.assertEqual(result, torch.ones(4))
-
     def test_string_format(self):
         s = "temp{i}"
 

torch/_dynamo/symbolic_convert.py

@@ -1709,34 +1709,6 @@ def WITH_CLEANUP_FINISH(self, inst):
         self.popn(2)
         self.push(None)
 
-    def CALL_FINALLY(self, inst):
-        """
-        pushes the address of the next instruction onto the stack and increments
-        bytecode counter by delta
-        """
-        # Python 3.8 only
-        addr = self.indexof[self.next_instruction]
-        self.push(ConstantVariable.create(addr))
-        self.jump(inst)
-
-    def END_FINALLY(self, inst):
-        # Python 3.8 only
-        # https://docs.python.org/3.8/library/dis.html#opcode-END_FINALLY
-        tos = self.pop()
-        if isinstance(tos, ConstantVariable):
-            self.instruction_pointer = tos.as_python_constant()
-        else:
-            pass
-
-    def POP_FINALLY(self, inst):
-        # Python 3.8 only
-        preserve_tos = inst.argval
-        if preserve_tos:
-            tos = self.pop()
-        _ = self.pop()
-        if preserve_tos:
-            self.push(tos)  # type: ignore[possibly-undefined]
-
     def FOR_ITER(self, inst):
         it = self.pop().realize()
         try: