[Bug c/91232] Adding -fPIC with optimization level > 0 resulting a busy hang in my program

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91232

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's the 0 - src computation that invokes undefined behavior and things go
downhill from there.  Use 0 - (uint32_t)src here.