> I can't argue with anything in that comment, other than the conclusion. :-) > It's not the compiler's job to implement the setjmp/longjmp save/restore. > Maybe Kenny was working around a problem with some target's buggy setjmp > and spilling everything "fixed" it?
What are the requirements imposed on setjmp exactly and by whom? The psABI on SPARC (the SCD) has an explicit note saying that setjmp/sigsetjmp/vfork don't (have to) preserve the usual non-volatile registers. -- Eric Botcazou
