https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99685
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Pat Haugen <pthau...@gcc.gnu.org>: https://gcc.gnu.org/g:2ee68beee709e48fce85b8892ff9985acc6a91a8 commit r13-574-g2ee68beee709e48fce85b8892ff9985acc6a91a8 Author: Pat Haugen <pthau...@linux.ibm.com> Date: Tue May 17 15:53:24 2022 -0500 Fix register count when not splitting Complex IEEE 128-bit args. For ABI_V4, we do not split complex args. This created a problem because even though an arg would be passed in two VSX regs, we were only advancing the function arg counter by one VSX register. Fixed with this patch. PR target/99685 gcc/ * config/rs6000/rs6000-call.cc (rs6000_function_arg_advance_1): Bump register count when not splitting IEEE 128-bit Complex.