https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112540
--- Comment #3 from David Binderman <dcb314 at hotmail dot com> --- As expected: trunk.year $ git bisect good d64b7c82dab4f0aa b42a09b258c3ed8d1368e0ef0948034dcf0f8ac9 is the first bad commit commit b42a09b258c3ed8d1368e0ef0948034dcf0f8ac9 Author: Uros Bizjak <ubiz...@gmail.com> Date: Tue Nov 14 18:34:43 2023 +0100 i386: Generate strict_low_part QImode insn with high input register