https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108996
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Ulrich Weigand from comment #4) > (In reply to Jakub Jelinek from comment #3) > > What is done on other arches? > > That depends on the platform ABI. On some arches, including x86/x86_64 and > arm/aarch64, the ABI requires the generated code reloads the return buffer > pointer into a defined register at function exit (either the same it was in > on function entry, or some other ABI-defined register). On those arches, > GDB can at least inspect the return value at the point the function return > happens. aarch64 does not require that. GCC produces it yes but that is a missed optimization, see PR 103010 which I filed against GCC for that case.
