use IRnode generated id

in case of copies, the ID will be copied appropriately

vyper/codegen/ir_node.py

@@ -139,6 +139,9 @@ class IRnode:
  func_ir: Any
  common_ir: Any
 
+ _id: int
+ _next_id: int = -1
+
  def __init__(
  self,
  value: Union[str, int],
@@ -153,6 +156,7 @@ def __init__(
  encoding: Encoding = Encoding.VYPER,
  is_self_call: bool = False,
  passthrough_metadata: dict[str, Any] = None,
+ _id: int = None,
  ):
  if args is None:
  args = []
@@ -175,6 +179,8 @@ def __init__(
  self.func_ir = None
  self.common_ir = None
 
+ self._id = self.ensure_id()
+
  assert self.value is not None, "None is not allowed as IRnode value"
 
  # Determine this node's valency (1 if it pushes a value on the stack,
@@ -358,6 +364,16 @@ def __deepcopy__(self, memo):
  ret.args = [copy.deepcopy(arg) for arg in ret.args]
  return ret
 
+ @classmethod
+ def generate_id(cls):
+ cls._next_id += 1
+ return cls._next_id
+
+ def ensure_id(self):
+ if not hasattr(self, "_id"):
+ self._id = self.generate_id()
+ return self._id
+
  # TODO would be nice to rename to `gas_estimate` or `gas_bound`
  @property
  def gas(self):

vyper/ir/compile_ir.py

@@ -214,9 +214,9 @@ def apply_line_no_wrapper(*args, **kwargs):
 def check_duplicated_nodes(ir_node, seen=None):
  seen = seen or set()
 
- if ir_node.is_complex_ir and id(ir_node) in seen:
+ if ir_node.is_complex_ir and ir_node._id in seen:
  raise CompilerPanic(f"bad code {ir_node}", ir_node.ast_source)
- seen.add(id(ir_node))
+ seen.add(ir_node._id)
 
  for arg in ir_node.args:
  check_duplicated_nodes(arg, seen)