https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63597
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Status|UNCONFIRMED |RESOLVED Component|c |middle-end Resolution|--- |INVALID --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Well this code is undefined anyways. Plus we don't find out that we don't need the chain until it is too late (RTL expand time). I am going to close this as invalid as &x-&a and &y-&a is undefined and does not mean the location will be fixed for the whole time as only a should be considered as being escaping.