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small speedup for constant and name access 

see sf #506436
This commit is contained in:
Skip Montanaro 2002-08-04 21:03:35 +00:00
parent 1ee99d31d9
commit 04d80f87d7
1 changed files with 6 additions and 3 deletions
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9
Python/ceval.c
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@ -494,6 +494,8 @@ eval_frame(PyFrameObject *f)
PyThreadState *tstate = PyThreadState_GET(); PyThreadState *tstate = PyThreadState_GET();
PyCodeObject *co; PyCodeObject *co;
unsigned char *first_instr; unsigned char *first_instr;
PyObject *names;
PyObject *consts;
#ifdef LLTRACE #ifdef LLTRACE
int lltrace; int lltrace;
#endif #endif
@ -512,8 +514,7 @@ eval_frame(PyFrameObject *f)
/* Code access macros */ /* Code access macros */
#define GETCONST(i) (GETITEM(co->co_consts, (i))) #define GETNAMEV(i) (GETITEM(names, (i)))
#define GETNAMEV(i) (GETITEM(co->co_names, (i)))
#define INSTR_OFFSET() (next_instr - first_instr) #define INSTR_OFFSET() (next_instr - first_instr)
#define NEXTOP() (*next_instr++) #define NEXTOP() (*next_instr++)
#define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2]) #define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2])
@ -575,6 +576,8 @@ eval_frame(PyFrameObject *f)
tstate->frame = f; tstate->frame = f;
co = f->f_code; co = f->f_code;
names = co->co_names;
consts = co->co_consts;
fastlocals = f->f_localsplus; fastlocals = f->f_localsplus;
freevars = f->f_localsplus + f->f_nlocals; freevars = f->f_localsplus + f->f_nlocals;
_PyCode_GETCODEPTR(co, &first_instr); _PyCode_GETCODEPTR(co, &first_instr);
@ -753,7 +756,7 @@ eval_frame(PyFrameObject *f)
break; break;
case LOAD_CONST: case LOAD_CONST:
x = GETCONST(oparg); x = GETITEM(consts, oparg);
Py_INCREF(x); Py_INCREF(x);
PUSH(x); PUSH(x);
goto fast_next_opcode; goto fast_next_opcode;