gh-98831: rewrite MAKE_FUNCTION and BUILD_SLICE in the instruction definition DSL #101529
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iritkatriel
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Feb 3, 2023
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iritkatriel
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- Issue: Generate the interpreter #98831
iritkatriel
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| kwdefaults if (oparg & 0x02), | ||
| annotations if (oparg & 0x04), | ||
| closure if (oparg & 0x08), | ||
| codeobj -- func)) { |
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Too bad we can't write func: PyFunctionObject * yet -- I've gotta add that to the grammar, it would add the casts and save the ugly extra func_obj variable.
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| Py_DECREF(start); | ||
| Py_DECREF(stop); | ||
| Py_XDECREF(step); |
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Oh, we should augment DECREF_INPUTS() to use XDECREF for conditional inputs.
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| PyObject *annotations = (oparg & 0x04) ? PEEK(1 + ((oparg & 0x08) ? 1 : 0) + ((oparg & 0x04) ? 1 : 0)) : NULL; | ||
| PyObject *kwdefaults = (oparg & 0x02) ? PEEK(1 + ((oparg & 0x08) ? 1 : 0) + ((oparg & 0x04) ? 1 : 0) + ((oparg & 0x02) ? 1 : 0)) : NULL; | ||
| PyObject *defaults = (oparg & 0x01) ? PEEK(1 + ((oparg & 0x08) ? 1 : 0) + ((oparg & 0x04) ? 1 : 0) + ((oparg & 0x02) ? 1 : 0) + ((oparg & 0x01) ? 1 : 0)) : NULL; |
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Let's hope the compiler optimizes this. (Though it's not perf critical.)
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