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gh-94438: in frameobject's mark_stacks switch, the PUSH_EXC_INFO and POP_EXCEPT cases are no longer reachable #94582

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Merged
iritkatriel merged 2 commits into from
Jul 6, 2022
Merged

gh-94438: in frameobject's mark_stacks switch, the PUSH_EXC_INFO and POP_EXCEPT cases are no longer reachable #94582

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gh-94438: in frameobject's mark_stacks switch, the PUSH_EXC_INFO and …
iritkatriel Jul 5, 2022
46a4a9b
add break and more info in the comment
iritkatriel Jul 5, 2022
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add break and more info in the comment
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@iritkatriel
iritkatriel committed Jul 5, 2022
commit 46a4a9b4412af7837b7d69a66fa5e9cbfb9c6882
4 changes: 4 additions & 0 deletions Objects/frameobject.c
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Expand Up @@ -304,8 +304,12 @@ mark_stacks(PyCodeObject *code_obj, int len)
/* These instructions only appear in exception handlers, which
* skip this switch ever since the move to zero-cost exceptions
* (their stack remains UNINITIALIZED because nothing sets it).
*
* Note that explain_incompatible_stack interprets an
* UNINITIALIZED stack as belonging to an exception handler.
*/
Py_UNREACHABLE();
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break;
case RETURN_VALUE:
case RAISE_VARARGS:
case RERAISE:
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