[Bug target/50091] [4.5/4.6/4.7 Regression] -fstack-check gives bad assembly on powerpc-apple-darwin9

[pinskia at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50091

--- Comment #3 from pinskia at gmail dot com <pinskia at gmail dot com> 2011-08-16 17:25:26 UTC ---
Because darwin's as does not support it. It only supports with r0.



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On Aug 16, 2011 10:13, ebotcazou at gcc dot gnu.org
<gcc-bugzilla@gcc.gnu.org> wrote: 

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50091



Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |ASSIGNED

   Last reconfirmed|                            |2011-08-16

         AssignedTo|unassigned at gcc dot       |ebotcazou at gcc dot

                   |gnu.org                     |gnu.org

     Ever Confirmed|0                           |1



--- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org>
2011-08-16 17:12:00 UTC ---

> Well, look at the PR - it was an ICE with graphite and stack-check, so
yes,

> of course.

> 

>         stw 0,-12284(r1)

> 

> looks like some missing operand print thing to dump fancy regnames (r0
instead

> of 0).



How come the assembler chokes on this?  Looking into it...