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GH-100762: Don't call gen.throw() in gen.close(), unless necessary. (GH-101013)

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* Store exception stack depth in YIELD_VALUE's oparg and use it avoid expensive gen.throw() in gen.close() where possible.
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Mark Shannon 2023-01-24 17:25:37 +00:00 • committed by GitHub
parent daec3a463c
commit f02fa64bf2
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9 changed files with 39 additions and 12 deletions
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6
Python/compile.c
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@ -7162,9 +7162,6 @@ stackdepth(basicblock *entryblock, int code_flags)
next = NULL;
break;
}
if (instr->i_opcode == YIELD_VALUE) {
instr->i_oparg = depth;
}
}
if (next != NULL) {
assert(BB_HAS_FALLTHROUGH(b));
@ -7332,6 +7329,9 @@ label_exception_targets(basicblock *entryblock) {
}
}
else {
if (instr->i_opcode == YIELD_VALUE) {
instr->i_oparg = except_stack->depth;
}
instr->i_except = handler;
}
}