https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119492
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #5) > So looking into this further, I think PR 15387 got fixed correctly via PR > 49519 (and PR51323 and PR 50074). Note both mention not doing TER into the call to fix the issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519#c18 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19616#c11 I am still wondering if helps anyways since the testcase in comment #4 with the musttail uncomment works iff not TERing into the tail call. Oh wait https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50074#c14 which takes about this exact loop and why it would be ok to look only at still internal_arg_pointer . I am still thinking about not doing TER for tail calls might be the best option anyways. Since in the long run we want to get rid of TER and such.
