cpython-lru_cache-weakref: Python/peephole.c annotate

annotate Python/peephole.c @ 80249:56bc323288d1 3.2

#5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds.

author	Ezio Melotti <ezio.melotti@gmail.com>
date	Mon, 05 Nov 2012 00:06:32 +0200
parents	503578ddf286
children	3b4f2f9272b4

rev	line source
41554 06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40943 diff changeset	1 /* Peephole optimizations for bytecode compiler. */
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	2
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	3 #include "Python.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	4
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	5 #include "Python-ast.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	6 #include "node.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	7 #include "ast.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	8 #include "code.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	9 #include "symtable.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	10 #include "opcode.h"
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	11
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	12 #define GETARG(arr, i) ((int)((arr[i+2]<<8) + arr[i+1]))
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	13 #define UNCONDITIONAL_JUMP(op) (op==JUMP_ABSOLUTE \|\| op==JUMP_FORWARD)
51853 643d8d4fc8eb http://bugs.python.org/issue4715 Jeffrey Yasskin <jyasskin@gmail.com> parents: 49747 diff changeset	14 #define CONDITIONAL_JUMP(op) (op==POP_JUMP_IF_FALSE \|\| op==POP_JUMP_IF_TRUE \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	15 \|\| op==JUMP_IF_FALSE_OR_POP \|\| op==JUMP_IF_TRUE_OR_POP)
51853 643d8d4fc8eb http://bugs.python.org/issue4715 Jeffrey Yasskin <jyasskin@gmail.com> parents: 49747 diff changeset	16 #define ABSOLUTE_JUMP(op) (op==JUMP_ABSOLUTE \|\| op==CONTINUE_LOOP \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	17 \|\| op==POP_JUMP_IF_FALSE \|\| op==POP_JUMP_IF_TRUE \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	18 \|\| op==JUMP_IF_FALSE_OR_POP \|\| op==JUMP_IF_TRUE_OR_POP)
51853 643d8d4fc8eb http://bugs.python.org/issue4715 Jeffrey Yasskin <jyasskin@gmail.com> parents: 49747 diff changeset	19 #define JUMPS_ON_TRUE(op) (op==POP_JUMP_IF_TRUE \|\| op==JUMP_IF_TRUE_OR_POP)
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	20 #define GETJUMPTGT(arr, i) (GETARG(arr,i) + (ABSOLUTE_JUMP(arr[i]) ? 0 : i+3))
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	21 #define SETARG(arr, i, val) arr[i+2] = val>>8; arr[i+1] = val & 255
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	22 #define CODESIZE(op) (HAS_ARG(op) ? 3 : 1)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	23 #define ISBASICBLOCK(blocks, start, bytes) \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	24 (blocks[start]==blocks[start+bytes-1])
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	25
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	26 /* Replace LOAD_CONST c1. LOAD_CONST c2 ... LOAD_CONST cn BUILD_TUPLE n
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	27 with LOAD_CONST (c1, c2, ... cn).
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	28 The consts table must still be in list form so that the
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	29 new constant (c1, c2, ... cn) can be appended.
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	30 Called with codestr pointing to the first LOAD_CONST.
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	31 Bails out with no change if one or more of the LOAD_CONSTs is missing.
58365 ed8b0ee1c531 Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`, Antoine Pitrou <solipsis@pitrou.net> parents: 56667 diff changeset	32 Also works for BUILD_LIST and BUILT_SET when followed by an "in" or "not in"
ed8b0ee1c531 Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`, Antoine Pitrou <solipsis@pitrou.net> parents: 56667 diff changeset	33 test; for BUILD_SET it assembles a frozenset rather than a tuple.
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	34 */
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	35 static int
46084 6bea2f1351b1 Merged revisions 61834,61841-61842,61851-61853,61863-61864,61869-61870,61874,61889 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45515 diff changeset	36 tuple_of_constants(unsigned char codestr, Py_ssize_t n, PyObject consts)
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	37 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	38 PyObject newconst, constant;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	39 Py_ssize_t i, arg, len_consts;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	40
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	41 /* Pre-conditions */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	42 assert(PyList_CheckExact(consts));
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	43 assert(codestr[n3] == BUILD_TUPLE \|\| codestr[n3] == BUILD_LIST \|\| codestr[n*3] == BUILD_SET);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	44 assert(GETARG(codestr, (n*3)) == n);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	45 for (i=0 ; i<n ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	46 assert(codestr[i*3] == LOAD_CONST);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	47
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	48 /* Buildup new tuple of constants */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	49 newconst = PyTuple_New(n);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	50 if (newconst == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	51 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	52 len_consts = PyList_GET_SIZE(consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	53 for (i=0 ; i<n ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	54 arg = GETARG(codestr, (i*3));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	55 assert(arg < len_consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	56 constant = PyList_GET_ITEM(consts, arg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	57 Py_INCREF(constant);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	58 PyTuple_SET_ITEM(newconst, i, constant);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	59 }
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	60
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	61 /* If it's a BUILD_SET, use the PyTuple we just built to create a
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	62 PyFrozenSet, and use that as the constant instead: */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	63 if (codestr[n*3] == BUILD_SET) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	64 PyObject *tuple = newconst;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	65 newconst = PyFrozenSet_New(tuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	66 Py_DECREF(tuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	67 if (newconst == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	68 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	69 }
58365 ed8b0ee1c531 Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`, Antoine Pitrou <solipsis@pitrou.net> parents: 56667 diff changeset	70
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	71 /* Append folded constant onto consts */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	72 if (PyList_Append(consts, newconst)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	73 Py_DECREF(newconst);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	74 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	75 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	76 Py_DECREF(newconst);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	77
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	78 /* Write NOPs over old LOAD_CONSTS and
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	79 add a new LOAD_CONST newconst on top of the BUILD_TUPLE n */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	80 memset(codestr, NOP, n*3);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	81 codestr[n*3] = LOAD_CONST;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	82 SETARG(codestr, (n*3), len_consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	83 return 1;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	84 }
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	85
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	86 /* Replace LOAD_CONST c1. LOAD_CONST c2 BINOP
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	87 with LOAD_CONST binop(c1,c2)
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	88 The consts table must still be in list form so that the
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	89 new constant can be appended.
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	90 Called with codestr pointing to the first LOAD_CONST.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	91 Abandons the transformation if the folding fails (i.e. 1+'a').
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	92 If the new constant is a sequence, only folds when the size
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	93 is below a threshold value. That keeps pyc files from
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	94 becoming large in the presence of code like: (None,)*1000.
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	95 */
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	96 static int
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	97 fold_binops_on_constants(unsigned char codestr, PyObject consts)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	98 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	99 PyObject newconst, v, *w;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	100 Py_ssize_t len_consts, size;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	101 int opcode;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	102
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	103 /* Pre-conditions */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	104 assert(PyList_CheckExact(consts));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	105 assert(codestr[0] == LOAD_CONST);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	106 assert(codestr[3] == LOAD_CONST);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	107
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	108 /* Create new constant */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	109 v = PyList_GET_ITEM(consts, GETARG(codestr, 0));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	110 w = PyList_GET_ITEM(consts, GETARG(codestr, 3));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	111 opcode = codestr[6];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	112 switch (opcode) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	113 case BINARY_POWER:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	114 newconst = PyNumber_Power(v, w, Py_None);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	115 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	116 case BINARY_MULTIPLY:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	117 newconst = PyNumber_Multiply(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	118 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	119 case BINARY_TRUE_DIVIDE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	120 newconst = PyNumber_TrueDivide(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	121 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	122 case BINARY_FLOOR_DIVIDE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	123 newconst = PyNumber_FloorDivide(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	124 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	125 case BINARY_MODULO:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	126 newconst = PyNumber_Remainder(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	127 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	128 case BINARY_ADD:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	129 newconst = PyNumber_Add(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	130 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	131 case BINARY_SUBTRACT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	132 newconst = PyNumber_Subtract(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	133 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	134 case BINARY_SUBSCR:
80249 56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	135 /* #5057: if v is unicode, there might be differences between
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	136 wide and narrow builds in cases like '\U00012345'[0] or
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	137 '\U00012345abcdef'[3], so it's better to skip the optimization
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	138 in order to produce compatible pycs.
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	139 */
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	140 if (PyUnicode_Check(v))
56bc323288d1 #5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds. Ezio Melotti <ezio.melotti@gmail.com> parents: 69371 diff changeset	141 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	142 newconst = PyObject_GetItem(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	143 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	144 case BINARY_LSHIFT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	145 newconst = PyNumber_Lshift(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	146 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	147 case BINARY_RSHIFT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	148 newconst = PyNumber_Rshift(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	149 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	150 case BINARY_AND:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	151 newconst = PyNumber_And(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	152 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	153 case BINARY_XOR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	154 newconst = PyNumber_Xor(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	155 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	156 case BINARY_OR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	157 newconst = PyNumber_Or(v, w);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	158 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	159 default:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	160 /* Called with an unknown opcode */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	161 PyErr_Format(PyExc_SystemError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	162 "unexpected binary operation %d on a constant",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	163 opcode);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	164 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	165 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	166 if (newconst == NULL) {
64223 7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	167 if(!PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	168 PyErr_Clear();
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	169 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	170 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	171 size = PyObject_Size(newconst);
64223 7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	172 if (size == -1) {
7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	173 if (PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	174 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	175 PyErr_Clear();
64223 7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	176 } else if (size > 20) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	177 Py_DECREF(newconst);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	178 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	179 }
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	180
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	181 /* Append folded constant into consts table */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	182 len_consts = PyList_GET_SIZE(consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	183 if (PyList_Append(consts, newconst)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	184 Py_DECREF(newconst);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	185 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	186 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	187 Py_DECREF(newconst);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	188
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	189 /* Write NOP NOP NOP NOP LOAD_CONST newconst */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	190 memset(codestr, NOP, 4);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	191 codestr[4] = LOAD_CONST;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	192 SETARG(codestr, 4, len_consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	193 return 1;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	194 }
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	195
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	196 static int
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	197 fold_unaryops_on_constants(unsigned char codestr, PyObject consts)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	198 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	199 PyObject newconst=NULL, v;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	200 Py_ssize_t len_consts;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	201 int opcode;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	202
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	203 /* Pre-conditions */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	204 assert(PyList_CheckExact(consts));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	205 assert(codestr[0] == LOAD_CONST);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	206
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	207 /* Create new constant */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	208 v = PyList_GET_ITEM(consts, GETARG(codestr, 0));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	209 opcode = codestr[3];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	210 switch (opcode) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	211 case UNARY_NEGATIVE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	212 /* Preserve the sign of -0.0 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	213 if (PyObject_IsTrue(v) == 1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	214 newconst = PyNumber_Negative(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	215 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	216 case UNARY_INVERT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	217 newconst = PyNumber_Invert(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	218 break;
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	219 case UNARY_POSITIVE:
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	220 newconst = PyNumber_Positive(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	221 break;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	222 default:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	223 /* Called with an unknown opcode */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	224 PyErr_Format(PyExc_SystemError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	225 "unexpected unary operation %d on a constant",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	226 opcode);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	227 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	228 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	229 if (newconst == NULL) {
64223 7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	230 if(!PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
7ff3fa429721 Issue 8403: Don't mask KeyboardInterrupt during peephole operation. Raymond Hettinger <python@rcn.com> parents: 61466 diff changeset	231 PyErr_Clear();
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	232 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	233 }
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	234
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	235 /* Append folded constant into consts table */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	236 len_consts = PyList_GET_SIZE(consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	237 if (PyList_Append(consts, newconst)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	238 Py_DECREF(newconst);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	239 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	240 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	241 Py_DECREF(newconst);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	242
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	243 /* Write NOP LOAD_CONST newconst */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	244 codestr[0] = NOP;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	245 codestr[1] = LOAD_CONST;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	246 SETARG(codestr, 1, len_consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	247 return 1;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	248 }
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	249
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	250 static unsigned int *
46084 6bea2f1351b1 Merged revisions 61834,61841-61842,61851-61853,61863-61864,61869-61870,61874,61889 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45515 diff changeset	251 markblocks(unsigned char *code, Py_ssize_t len)
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	252 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	253 unsigned int blocks = (unsigned int )PyMem_Malloc(len*sizeof(int));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	254 int i,j, opcode, blockcnt = 0;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	255
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	256 if (blocks == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	257 PyErr_NoMemory();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	258 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	259 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	260 memset(blocks, 0, len*sizeof(int));
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	261
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	262 /* Mark labels in the first pass */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	263 for (i=0 ; i<len ; i+=CODESIZE(opcode)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	264 opcode = code[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	265 switch (opcode) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	266 case FOR_ITER:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	267 case JUMP_FORWARD:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	268 case JUMP_IF_FALSE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	269 case JUMP_IF_TRUE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	270 case POP_JUMP_IF_FALSE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	271 case POP_JUMP_IF_TRUE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	272 case JUMP_ABSOLUTE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	273 case CONTINUE_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	274 case SETUP_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	275 case SETUP_EXCEPT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	276 case SETUP_FINALLY:
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	277 case SETUP_WITH:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	278 j = GETJUMPTGT(code, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	279 blocks[j] = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	280 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	281 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	282 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	283 /* Build block numbers in the second pass */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	284 for (i=0 ; i<len ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	285 blockcnt += blocks[i]; /* increment blockcnt over labels */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	286 blocks[i] = blockcnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	287 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	288 return blocks;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	289 }
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	290
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	291 /* Helper to replace LOAD_NAME None/True/False with LOAD_CONST
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	292 Returns: 0 if no change, 1 if change, -1 if error */
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	293 static int
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	294 load_global(unsigned char codestr, Py_ssize_t i, char name, PyObject *consts)
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	295 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	296 Py_ssize_t j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	297 PyObject *obj;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	298 if (name == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	299 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	300 if (strcmp(name, "None") == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	301 obj = Py_None;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	302 else if (strcmp(name, "True") == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	303 obj = Py_True;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	304 else if (strcmp(name, "False") == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	305 obj = Py_False;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	306 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	307 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	308 for (j = 0; j < PyList_GET_SIZE(consts); j++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	309 if (PyList_GET_ITEM(consts, j) == obj)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	310 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	311 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	312 if (j == PyList_GET_SIZE(consts)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	313 if (PyList_Append(consts, obj) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	314 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	315 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	316 assert(PyList_GET_ITEM(consts, j) == obj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	317 codestr[i] = LOAD_CONST;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	318 SETARG(codestr, i, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	319 return 1;
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	320 }
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41554 diff changeset	321
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	322 /* Perform basic peephole optimizations to components of a code object.
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	323 The consts object should still be in list form to allow new constants
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	324 to be appended.
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	325
40943 c79e6234fb19 Two more patches by Tony Lownds (SF# 1607548). Guido van Rossum <guido@python.org> parents: 40450 diff changeset	326 To keep the optimizer simple, it bails out (does nothing) for code that
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	327 has a length over 32,700, and does not calculate extended arguments.
40943 c79e6234fb19 Two more patches by Tony Lownds (SF# 1607548). Guido van Rossum <guido@python.org> parents: 40450 diff changeset	328 That allows us to avoid overflow and sign issues. Likewise, it bails when
c79e6234fb19 Two more patches by Tony Lownds (SF# 1607548). Guido van Rossum <guido@python.org> parents: 40450 diff changeset	329 the lineno table has complex encoding for gaps >= 255. EXTENDED_ARG can
c79e6234fb19 Two more patches by Tony Lownds (SF# 1607548). Guido van Rossum <guido@python.org> parents: 40450 diff changeset	330 appear before MAKE_FUNCTION; in this case both opcodes are skipped.
c79e6234fb19 Two more patches by Tony Lownds (SF# 1607548). Guido van Rossum <guido@python.org> parents: 40450 diff changeset	331 EXTENDED_ARG preceding any other opcode causes the optimizer to bail.
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	332
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	333 Optimizations are restricted to simple transformations occuring within a
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	334 single basic block. All transformations keep the code size the same or
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	335 smaller. For those that reduce size, the gaps are initially filled with
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	336 NOPs. Later those NOPs are removed and the jump addresses retargeted in
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	337 a single pass. Line numbering is adjusted accordingly. */
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	338
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	339 PyObject *
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	340 PyCode_Optimize(PyObject code, PyObject consts, PyObject *names,
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	341 PyObject *lineno_obj)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	342 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	343 Py_ssize_t i, j, codelen;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	344 int nops, h, adj;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	345 int tgt, tgttgt, opcode;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	346 unsigned char *codestr = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	347 unsigned char *lineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	348 int *addrmap = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	349 int new_line, cum_orig_line, last_line, tabsiz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	350 int cumlc=0, lastlc=0; /* Count runs of consecutive LOAD_CONSTs */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	351 unsigned int *blocks = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	352 char *name;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	353
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	354 /* Bail out if an exception is set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	355 if (PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	356 goto exitError;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	357
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	358 /* Bypass optimization when the lineno table is too complex */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	359 assert(PyBytes_Check(lineno_obj));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	360 lineno = (unsigned char*)PyBytes_AS_STRING(lineno_obj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	361 tabsiz = PyBytes_GET_SIZE(lineno_obj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	362 if (memchr(lineno, 255, tabsiz) != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	363 goto exitUnchanged;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	364
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	365 /* Avoid situations where jump retargeting could overflow */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	366 assert(PyBytes_Check(code));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	367 codelen = PyBytes_GET_SIZE(code);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	368 if (codelen > 32700)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	369 goto exitUnchanged;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	370
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	371 /* Make a modifiable copy of the code string */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	372 codestr = (unsigned char *)PyMem_Malloc(codelen);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	373 if (codestr == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	374 goto exitError;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	375 codestr = (unsigned char *)memcpy(codestr,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	376 PyBytes_AS_STRING(code), codelen);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	377
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	378 /* Verify that RETURN_VALUE terminates the codestring. This allows
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	379 the various transformation patterns to look ahead several
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	380 instructions without additional checks to make sure they are not
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	381 looking beyond the end of the code string.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	382 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	383 if (codestr[codelen-1] != RETURN_VALUE)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	384 goto exitUnchanged;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	385
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	386 /* Mapping to new jump targets after NOPs are removed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	387 addrmap = (int )PyMem_Malloc(codelen sizeof(int));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	388 if (addrmap == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	389 goto exitError;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	390
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	391 blocks = markblocks(codestr, codelen);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	392 if (blocks == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	393 goto exitError;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	394 assert(PyList_Check(consts));
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	395
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	396 for (i=0 ; i<codelen ; i += CODESIZE(codestr[i])) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	397 reoptimize_current:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	398 opcode = codestr[i];
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	399
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	400 lastlc = cumlc;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	401 cumlc = 0;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	402
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	403 switch (opcode) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	404 /* Replace UNARY_NOT POP_JUMP_IF_FALSE
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	405 with POP_JUMP_IF_TRUE */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	406 case UNARY_NOT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	407 if (codestr[i+1] != POP_JUMP_IF_FALSE
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	408 \|\| !ISBASICBLOCK(blocks,i,4))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	409 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	410 j = GETARG(codestr, i+1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	411 codestr[i] = POP_JUMP_IF_TRUE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	412 SETARG(codestr, i, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	413 codestr[i+3] = NOP;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	414 goto reoptimize_current;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	415
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	416 /* not a is b --> a is not b
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	417 not a in b --> a not in b
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	418 not a is not b --> a is b
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	419 not a not in b --> a in b
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	420 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	421 case COMPARE_OP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	422 j = GETARG(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	423 if (j < 6 \|\| j > 9 \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	424 codestr[i+3] != UNARY_NOT \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	425 !ISBASICBLOCK(blocks,i,4))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	426 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	427 SETARG(codestr, i, (j^1));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	428 codestr[i+3] = NOP;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	429 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	430
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	431 /* Replace LOAD_GLOBAL/LOAD_NAME None/True/False
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	432 with LOAD_CONST None/True/False */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	433 case LOAD_NAME:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	434 case LOAD_GLOBAL:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	435 j = GETARG(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	436 name = _PyUnicode_AsString(PyTuple_GET_ITEM(names, j));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	437 h = load_global(codestr, i, name, consts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	438 if (h < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	439 goto exitError;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	440 else if (h == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	441 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	442 cumlc = lastlc + 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	443 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	444
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	445 /* Skip over LOAD_CONST trueconst
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	446 POP_JUMP_IF_FALSE xx. This improves
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	447 "while 1" performance. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	448 case LOAD_CONST:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	449 cumlc = lastlc + 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	450 j = GETARG(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	451 if (codestr[i+3] != POP_JUMP_IF_FALSE \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	452 !ISBASICBLOCK(blocks,i,6) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	453 !PyObject_IsTrue(PyList_GET_ITEM(consts, j)))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	454 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	455 memset(codestr+i, NOP, 6);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	456 cumlc = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	457 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	458
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	459 /* Try to fold tuples of constants (includes a case for lists and sets
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	460 which are only used for "in" and "not in" tests).
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	461 Skip over BUILD_SEQN 1 UNPACK_SEQN 1.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	462 Replace BUILD_SEQN 2 UNPACK_SEQN 2 with ROT2.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	463 Replace BUILD_SEQN 3 UNPACK_SEQN 3 with ROT3 ROT2. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	464 case BUILD_TUPLE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	465 case BUILD_LIST:
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	466 case BUILD_SET:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	467 j = GETARG(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	468 h = i - 3 * j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	469 if (h >= 0 &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	470 j <= lastlc &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	471 ((opcode == BUILD_TUPLE &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	472 ISBASICBLOCK(blocks, h, 3*(j+1))) \|\|
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	473 ((opcode == BUILD_LIST \|\| opcode == BUILD_SET) &&
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	474 codestr[i+3]==COMPARE_OP &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	475 ISBASICBLOCK(blocks, h, 3*(j+2)) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	476 (GETARG(codestr,i+3)==6 \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	477 GETARG(codestr,i+3)==7))) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	478 tuple_of_constants(&codestr[h], j, consts)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	479 assert(codestr[i] == LOAD_CONST);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	480 cumlc = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	481 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	482 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	483 if (codestr[i+3] != UNPACK_SEQUENCE \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	484 !ISBASICBLOCK(blocks,i,6) \|\|
68563 912eb87946e0 Issue 11510: Fix BUILD_SET optimizer bug. Raymond Hettinger <python@rcn.com> parents: 68257 diff changeset	485 j != GETARG(codestr, i+3) \|\|
912eb87946e0 Issue 11510: Fix BUILD_SET optimizer bug. Raymond Hettinger <python@rcn.com> parents: 68257 diff changeset	486 opcode == BUILD_SET)
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	487 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	488 if (j == 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	489 memset(codestr+i, NOP, 6);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	490 } else if (j == 2) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	491 codestr[i] = ROT_TWO;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	492 memset(codestr+i+1, NOP, 5);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	493 } else if (j == 3) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	494 codestr[i] = ROT_THREE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	495 codestr[i+1] = ROT_TWO;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	496 memset(codestr+i+2, NOP, 4);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	497 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	498 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	499
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	500 /* Fold binary ops on constants.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	501 LOAD_CONST c1 LOAD_CONST c2 BINOP --> LOAD_CONST binop(c1,c2) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	502 case BINARY_POWER:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	503 case BINARY_MULTIPLY:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	504 case BINARY_TRUE_DIVIDE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	505 case BINARY_FLOOR_DIVIDE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	506 case BINARY_MODULO:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	507 case BINARY_ADD:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	508 case BINARY_SUBTRACT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	509 case BINARY_SUBSCR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	510 case BINARY_LSHIFT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	511 case BINARY_RSHIFT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	512 case BINARY_AND:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	513 case BINARY_XOR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	514 case BINARY_OR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	515 if (lastlc >= 2 &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	516 ISBASICBLOCK(blocks, i-6, 7) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	517 fold_binops_on_constants(&codestr[i-6], consts)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	518 i -= 2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	519 assert(codestr[i] == LOAD_CONST);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	520 cumlc = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	521 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	522 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	523
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	524 /* Fold unary ops on constants.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	525 LOAD_CONST c1 UNARY_OP --> LOAD_CONST unary_op(c) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	526 case UNARY_NEGATIVE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	527 case UNARY_INVERT:
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	528 case UNARY_POSITIVE:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	529 if (lastlc >= 1 &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	530 ISBASICBLOCK(blocks, i-3, 4) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	531 fold_unaryops_on_constants(&codestr[i-3], consts)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	532 i -= 2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	533 assert(codestr[i] == LOAD_CONST);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	534 cumlc = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	535 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	536 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	537
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	538 /* Simplify conditional jump to conditional jump where the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	539 result of the first test implies the success of a similar
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	540 test or the failure of the opposite test.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	541 Arises in code like:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	542 "if a and b:"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	543 "if a or b:"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	544 "a and b or c"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	545 "(a and b) and c"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	546 x:JUMP_IF_FALSE_OR_POP y y:JUMP_IF_FALSE_OR_POP z
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	547 --> x:JUMP_IF_FALSE_OR_POP z
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	548 x:JUMP_IF_FALSE_OR_POP y y:JUMP_IF_TRUE_OR_POP z
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	549 --> x:POP_JUMP_IF_FALSE y+3
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	550 where y+3 is the instruction following the second test.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	551 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	552 case JUMP_IF_FALSE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	553 case JUMP_IF_TRUE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	554 tgt = GETJUMPTGT(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	555 j = codestr[tgt];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	556 if (CONDITIONAL_JUMP(j)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	557 /* NOTE: all possible jumps here are
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	558 absolute! */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	559 if (JUMPS_ON_TRUE(j) == JUMPS_ON_TRUE(opcode)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	560 /* The second jump will be
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	561 taken iff the first is. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	562 tgttgt = GETJUMPTGT(codestr, tgt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	563 /* The current opcode inherits
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	564 its target's stack behaviour */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	565 codestr[i] = j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	566 SETARG(codestr, i, tgttgt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	567 goto reoptimize_current;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	568 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	569 /* The second jump is not taken
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	570 if the first is (so jump past
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	571 it), and all conditional
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	572 jumps pop their argument when
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	573 they're not taken (so change
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	574 the first jump to pop its
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	575 argument when it's taken). */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	576 if (JUMPS_ON_TRUE(opcode))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	577 codestr[i] = POP_JUMP_IF_TRUE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	578 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	579 codestr[i] = POP_JUMP_IF_FALSE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	580 SETARG(codestr, i, (tgt + 3));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	581 goto reoptimize_current;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	582 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	583 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	584 /* Intentional fallthrough */
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	585
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	586 /* Replace jumps to unconditional jumps */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	587 case POP_JUMP_IF_FALSE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	588 case POP_JUMP_IF_TRUE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	589 case FOR_ITER:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	590 case JUMP_FORWARD:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	591 case JUMP_ABSOLUTE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	592 case CONTINUE_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	593 case SETUP_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	594 case SETUP_EXCEPT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	595 case SETUP_FINALLY:
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	596 case SETUP_WITH:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	597 tgt = GETJUMPTGT(codestr, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	598 /* Replace JUMP_* to a RETURN into just a RETURN */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	599 if (UNCONDITIONAL_JUMP(opcode) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	600 codestr[tgt] == RETURN_VALUE) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	601 codestr[i] = RETURN_VALUE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	602 memset(codestr+i+1, NOP, 2);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	603 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	604 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	605 if (!UNCONDITIONAL_JUMP(codestr[tgt]))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	606 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	607 tgttgt = GETJUMPTGT(codestr, tgt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	608 if (opcode == JUMP_FORWARD) /* JMP_ABS can go backwards */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	609 opcode = JUMP_ABSOLUTE;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	610 if (!ABSOLUTE_JUMP(opcode))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	611 tgttgt -= i + 3; /* Calc relative jump addr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	612 if (tgttgt < 0) /* No backward relative jumps */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	613 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	614 codestr[i] = opcode;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	615 SETARG(codestr, i, tgttgt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	616 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	617
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	618 case EXTENDED_ARG:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	619 if (codestr[i+3] != MAKE_FUNCTION)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	620 goto exitUnchanged;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	621 /* don't visit MAKE_FUNCTION as GETARG will be wrong */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	622 i += 3;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	623 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	624
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	625 /* Replace RETURN LOAD_CONST None RETURN with just RETURN */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	626 /* Remove unreachable JUMPs after RETURN */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	627 case RETURN_VALUE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	628 if (i+4 >= codelen)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	629 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	630 if (codestr[i+4] == RETURN_VALUE &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	631 ISBASICBLOCK(blocks,i,5))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	632 memset(codestr+i+1, NOP, 4);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	633 else if (UNCONDITIONAL_JUMP(codestr[i+1]) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	634 ISBASICBLOCK(blocks,i,4))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	635 memset(codestr+i+1, NOP, 3);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	636 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	637 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	638 }
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	639
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	640 /* Fixup linenotab */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	641 for (i=0, nops=0 ; i<codelen ; i += CODESIZE(codestr[i])) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	642 addrmap[i] = i - nops;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	643 if (codestr[i] == NOP)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	644 nops++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	645 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	646 cum_orig_line = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	647 last_line = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	648 for (i=0 ; i < tabsiz ; i+=2) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	649 cum_orig_line += lineno[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	650 new_line = addrmap[cum_orig_line];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	651 assert (new_line - last_line < 255);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	652 lineno[i] =((unsigned char)(new_line - last_line));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	653 last_line = new_line;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	654 }
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	655
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	656 /* Remove NOPs and fixup jump targets */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	657 for (i=0, h=0 ; i<codelen ; ) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	658 opcode = codestr[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	659 switch (opcode) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	660 case NOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	661 i++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	662 continue;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	663
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	664 case JUMP_ABSOLUTE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	665 case CONTINUE_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	666 case POP_JUMP_IF_FALSE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	667 case POP_JUMP_IF_TRUE:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	668 case JUMP_IF_FALSE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	669 case JUMP_IF_TRUE_OR_POP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	670 j = addrmap[GETARG(codestr, i)];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	671 SETARG(codestr, i, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	672 break;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	673
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	674 case FOR_ITER:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	675 case JUMP_FORWARD:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	676 case SETUP_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	677 case SETUP_EXCEPT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	678 case SETUP_FINALLY:
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 58365 diff changeset	679 case SETUP_WITH:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	680 j = addrmap[GETARG(codestr, i) + i + 3] - addrmap[i] - 3;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	681 SETARG(codestr, i, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	682 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	683 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	684 adj = CODESIZE(opcode);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	685 while (adj--)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	686 codestr[h++] = codestr[i++];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	687 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	688 assert(h + nops == codelen);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	689
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	690 code = PyBytes_FromStringAndSize((char *)codestr, h);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	691 PyMem_Free(addrmap);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	692 PyMem_Free(codestr);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	693 PyMem_Free(blocks);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	694 return code;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	695
55609 9d40586a6afc Merged revisions 74126,74130-74131,74149,74155,74157,74180-74183,74398 via svnmerge from Georg Brandl <georg@python.org> parents: 51923 diff changeset	696 exitError:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	697 code = NULL;
55609 9d40586a6afc Merged revisions 74126,74130-74131,74149,74155,74157,74180-74183,74398 via svnmerge from Georg Brandl <georg@python.org> parents: 51923 diff changeset	698
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	699 exitUnchanged:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	700 if (blocks != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	701 PyMem_Free(blocks);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	702 if (addrmap != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	703 PyMem_Free(addrmap);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	704 if (codestr != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	705 PyMem_Free(codestr);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	706 Py_XINCREF(code);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55609 diff changeset	707 return code;
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: diff changeset	708 }

Mercurial > cpython-lru_cache-weakref

annotate Python/peephole.c @ 80249:56bc323288d1 3.2