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Re: Remove SETJMP_VIA_SAVE_AREA support


> You do know that at least rtl hoisting is dependent upon calls_setjmp being
> set, right?  :-(

Sure, clearly a straightforward dependency. ;-)

> This part breaks my port.  I think you read the comment and thought it was
> exhaustive, I don't believe it is.

I think it should, though.  __builtin_setjmp doesn't need the calls_setjmp big 
hammer, since everything is supposed to be exposed in the IR.

> Any objection to putting it back, or, would you like me to drill down on
> rtl hoisting?

Yes, the problem needs to be understood first.  This change broke something for 
Darwin too and the fix was a one-liner in the back-end:
  http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00351.html

-- 
Eric Botcazou


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