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Subject: [Bug c/59039] Undocumented __builtin_longjmp/__builtin_setjmp
Date: Thu, 07 Nov 2013 15:32:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59039

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Eric Botcazou from comment #7)
> > Ah, those are the builtins used for SJLJ and they get lowered to
> > setjmp_setup,dispatcher and longjmp.
> 
> Right, they are the efficient version of setjmp/longjmp.
>  

What restrictions do they have? Can they be used within the
same function? Can they be used within functions with parameters?