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bpo-27129: Use instruction offsets, not byte offsets, in bytecode and internally. (GH-25069)

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* Use instruction offset, rather than bytecode offset. Streamlines interpreter dispatch a bit, and removes most EXTENDED_ARGs for jumps.

* Change some uses of PyCode_Addr2Line to PyFrame_GetLineNumber
This commit is contained in:
Mark Shannon 2021-04-01 16:00:31 +01:00 • committed by GitHub
parent 2ac0515027
commit fcb55c0037
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 4568 additions and 4569 deletions
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4
Objects/genobject.c
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@ -357,7 +357,7 @@ _PyGen_yf(PyGenObject *gen)
return NULL;
}
if (code[f->f_lasti + sizeof(_Py_CODEUNIT)] != YIELD_FROM)
if (code[(f->f_lasti+1)*sizeof(_Py_CODEUNIT)] != YIELD_FROM)
return NULL;
assert(f->f_stackdepth > 0);
yf = f->f_valuestack[f->f_stackdepth-1];
@ -481,7 +481,7 @@ _gen_throw(PyGenObject *gen, int close_on_genexit,
Py_DECREF(ret);
/* Termination repetition of YIELD_FROM */
assert(gen->gi_frame->f_lasti >= 0);
gen->gi_frame->f_lasti += sizeof(_Py_CODEUNIT);
gen->gi_frame->f_lasti += 1;
if (_PyGen_FetchStopIterationValue(&val) == 0) {
ret = gen_send(gen, val);
Py_DECREF(val);