small speedup for constant and name access
see sf #506436
diff --git a/Python/ceval.c b/Python/ceval.c
index 50c832a..e174d09 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -494,6 +494,8 @@
PyThreadState *tstate = PyThreadState_GET();
PyCodeObject *co;
unsigned char *first_instr;
+ PyObject *names;
+ PyObject *consts;
#ifdef LLTRACE
int lltrace;
#endif
@@ -512,8 +514,7 @@
/* Code access macros */
-#define GETCONST(i) (GETITEM(co->co_consts, (i)))
-#define GETNAMEV(i) (GETITEM(co->co_names, (i)))
+#define GETNAMEV(i) (GETITEM(names, (i)))
#define INSTR_OFFSET() (next_instr - first_instr)
#define NEXTOP() (*next_instr++)
#define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2])
@@ -575,6 +576,8 @@
tstate->frame = f;
co = f->f_code;
+ names = co->co_names;
+ consts = co->co_consts;
fastlocals = f->f_localsplus;
freevars = f->f_localsplus + f->f_nlocals;
_PyCode_GETCODEPTR(co, &first_instr);
@@ -753,7 +756,7 @@
break;
case LOAD_CONST:
- x = GETCONST(oparg);
+ x = GETITEM(consts, oparg);
Py_INCREF(x);
PUSH(x);
goto fast_next_opcode;