https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119873
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:f36ec88aa85a1a8f4ec300dfcd862fc4fbca1c53 commit r15-9590-gf36ec88aa85a1a8f4ec300dfcd862fc4fbca1c53 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Apr 25 14:42:01 2025 +0200 s390: Allow 5+ argument tail-calls in some -m31 -mzarch special cases [PR119873] Here is a patch to handle the PARALLEL case too. I think we can just use rtx_equal_p there, because it will always use SImode in the EXPR_LIST REGs in that case. 2025-04-25 Jakub Jelinek <ja...@redhat.com> PR target/119873 * config/s390/s390.cc (s390_call_saved_register_used): Don't return true if default definition of PARM_DECL SSA_NAME of the same register is passed in call saved register in the PARALLEL case either. * gcc.target/s390/pr119873-5.c: New test. (cherry picked from commit 3d156c9e9bdaf351f77e3348b7d0d75e08f65580)
