GH-125837: Split `LOAD_CONST` into three. (GH-125972)

* Add LOAD_CONST_IMMORTAL opcode

* Add LOAD_SMALL_INT opcode

* Remove RETURN_CONST opcode

1 files changed, 21 insertions, 0 deletions

diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index 243b3efa41b..0a7e44ef78d 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -68,6 +68,27 @@
             break;
         }
 
+        case _LOAD_CONST_IMMORTAL: {
+            _Py_UopsSymbol *value;
+            PyObject *val = PyTuple_GET_ITEM(co->co_consts, this_instr->oparg);
+            REPLACE_OP(this_instr, _LOAD_CONST_INLINE_BORROW, 0, (uintptr_t)val);
+            value = sym_new_const(ctx, val);
+            stack_pointer[0] = value;
+            stack_pointer += 1;
+            assert(WITHIN_STACK_BOUNDS());
+            break;
+        }
+
+        case _LOAD_SMALL_INT: {
+            _Py_UopsSymbol *value;
+            PyObject *val = PyLong_FromLong(this_instr->oparg);
+            value = sym_new_const(ctx, val);
+            stack_pointer[0] = value;
+            stack_pointer += 1;
+            assert(WITHIN_STACK_BOUNDS());
+            break;
+        }
+
         case _STORE_FAST: {
             _Py_UopsSymbol *value;
             value = stack_pointer[-1];