Address Yan's review

Author: Eclips4

Python/flowgraph.c

@@ -1393,12 +1393,13 @@ fold_tuple_on_constants(PyObject *const_cache,
     return SUCCESS;
 }
 
+#define MIN_CONST_SEQUENCE_SIZE 3
 /* Replace LOAD_CONST c1, LOAD_CONST c2 ... LOAD_CONST cN, BUILD_LIST N
    with BUILD_LIST 0, LOAD_CONST (c1, c2, ... cN), LIST_EXTEND 1,
    or BUILD_SET & SET_UPDATE respectively.
 */
 static int
-optimize_const_sequence(PyObject *const_cache, cfg_instr* inst, int n, PyObject *consts)
+optimize_build_list_or_set_with_constants(PyObject *const_cache, cfg_instr* inst, int n, PyObject *consts)
 {
     assert(PyDict_CheckExact(const_cache));
     assert(PyList_CheckExact(consts));
@@ -1408,7 +1409,7 @@ optimize_const_sequence(PyObject *const_cache, cfg_instr* inst, int n, PyObject
     assert(build == BUILD_LIST || build == BUILD_SET);
     int extend = build == BUILD_LIST ? LIST_EXTEND : SET_UPDATE;
 
-    if (n < 3 || !is_sequence_constant(inst, n)) {
+    if (n < MIN_CONST_SEQUENCE_SIZE || !is_sequence_constant(inst, n)) {
         return SUCCESS;
     }
     PyObject *newconst = PyTuple_New(n);
@@ -1812,7 +1813,7 @@ optimize_basic_block(PyObject *const_cache, basicblock *bb, PyObject *consts)
             case BUILD_LIST:
             case BUILD_SET:
                 if (i >= oparg) {
-                    if (optimize_const_sequence(const_cache, inst-oparg, oparg, consts) < 0) {
+                    if (optimize_build_list_or_set_with_constants(const_cache, inst-oparg, oparg, consts) < 0) {
                         goto error;
                     }
                 }