gh-105775: Convert LOAD_CLOSURE to a pseudo-op (#106059)

This enables super-instruction formation,
removal of checks for uninitialized variables,
and frees up an instruction.

1 files changed, 11 insertions, 12 deletions

diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
index 39d4357..63336bb 100644
--- a/Doc/library/dis.rst
+++ b/Doc/library/dis.rst
@@ -1291,18 +1291,6 @@ iterations of the loop.
    .. versionadded:: 3.11
 
 
-.. opcode:: LOAD_CLOSURE (i)
-
-   Pushes a reference to the cell contained in slot ``i`` of the "fast locals"
-   storage.  The name of the variable is ``co_fastlocalnames[i]``.
-
-   Note that ``LOAD_CLOSURE`` is effectively an alias for ``LOAD_FAST``.
-   It exists to keep bytecode a little more readable.
-
-   .. versionchanged:: 3.11
-      ``i`` is no longer offset by the length of ``co_varnames``.
-
-
 .. opcode:: LOAD_DEREF (i)
 
    Loads the cell contained in slot ``i`` of the "fast locals" storage.
@@ -1725,6 +1713,17 @@ but are replaced by real opcodes or removed before bytecode is generated.
    Undirected relative jump instructions which are replaced by their
    directed (forward/backward) counterparts by the assembler.
 
+.. opcode:: LOAD_CLOSURE (i)
+
+   Pushes a reference to the cell contained in slot ``i`` of the "fast locals"
+   storage.
+
+   Note that ``LOAD_CLOSURE`` is replaced with ``LOAD_FAST`` in the assembler.
+
+   .. versionchanged:: 3.13
+      This opcode is now a pseudo-instruction.
+
+
 .. opcode:: LOAD_METHOD
 
    Optimized unbound method lookup. Emitted as a ``LOAD_ATTR`` opcode