https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99685
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Pat Haugen <pthau...@gcc.gnu.org>: https://gcc.gnu.org/g:e7f0d923dc29965ff92f27245ea63c5726edcacd commit r11-10319-ge7f0d923dc29965ff92f27245ea63c5726edcacd Author: Pat Haugen <pthau...@linux.ibm.com> Date: Mon Oct 17 15:11:42 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. (backported commit 2ee68beee709e48fce85b8892ff9985acc6a91a8) gcc/ PR target/99685 * config/rs6000/rs6000-call.c (rs6000_function_arg_advance_1): Bump register count when not splitting IEEE 128-bit Complex.