https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114175
--- Comment #62 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Edwin Lu <e...@gcc.gnu.org>: https://gcc.gnu.org/g:c4eff4ece764d836eb7ee0c0163780d100471730 commit r13-8579-gc4eff4ece764d836eb7ee0c0163780d100471730 Author: Edwin Lu <e...@rivosinc.com> Date: Mon Mar 18 11:43:41 2024 -0700 RISC-V: Fix C23 (...) functions returning large aggregates [PR114175] We assume that TYPE_NO_NAMED_ARGS_STDARG_P don't have any named arguments and there is nothing to advance, but that is not the case for (...) functions returning by hidden reference which have one such artificial argument. This causes gcc.dg/c23-stdarg-[68].c to fail Fix the issue by checking if arg.type is NULL as r14-9503-g218d1749612 explains Tested on linux rv64gcv. gcc/ChangeLog: PR target/114175 * config/riscv/riscv.cc (riscv_setup_incoming_varargs): Only skip riscv_funciton_arg_advance for TYPE_NO_NAMED_ARGS_STDARG_P functions if arg.type is NULL (cherry picked from commit 60586710b0646efdbbd77a7f53b93fb5edb87a61)
