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| author | INADA Naoki <methane@users.noreply.github.com> | 2017-12-14 13:18:26 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-12-14 13:18:26 (GMT) |
| commit | eadad1b97f64619bfd246b9d3b60d25f456e0592 (patch) | |
| tree | 36a99ea393b12c0ab753ed29d412fc6fdf7d73d2 /Python | |
| parent | 374c6e178a7599aae46c857b17c6c8bc19dfe4c2 (diff) | |
| download | cpython-eadad1b97f64619bfd246b9d3b60d25f456e0592.zip cpython-eadad1b97f64619bfd246b9d3b60d25f456e0592.tar.gz cpython-eadad1b97f64619bfd246b9d3b60d25f456e0592.tar.bz2 | |
bpo-29469: Remove unnecessary peephole optimizer (GH-4863)
Conversions like `not a is b -> a is not b` are implemented
in AST optimizer in previous commit (7ea143a).
So this commit removes them from peephole optimizer.
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/peephole.c | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/Python/peephole.c b/Python/peephole.c index 3c5290f..5817146 100644 --- a/Python/peephole.c +++ b/Python/peephole.c @@ -345,21 +345,6 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names, in_consts = 0; switch (opcode) { - /* not a is b --> a is not b - not a in b --> a not in b - not a is not b --> a is b - not a not in b --> a in b - */ - case COMPARE_OP: - j = get_arg(codestr, i); - if (j < 6 || j > 9 || - nextop != UNARY_NOT || - !ISBASICBLOCK(blocks, op_start, i + 1)) - break; - codestr[i] = PACKOPARG(opcode, j^1); - fill_nops(codestr, i + 1, nexti + 1); - break; - /* Skip over LOAD_CONST trueconst POP_JUMP_IF_FALSE xx. This improves "while 1" performance. */ |