https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104961
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Vladimir Makarov <vmaka...@gcc.gnu.org>: https://gcc.gnu.org/g:0c016888ffd569c4b70722cf7df2efcc003f397b commit r12-7716-g0c016888ffd569c4b70722cf7df2efcc003f397b Author: Vladimir N. Makarov <vmaka...@redhat.com> Date: Fri Mar 18 14:23:40 2022 -0400 [PR104961] LRA: split hard reg for reload pseudo with clobber. Splitting hard register live range did not work for subreg of a multi-reg reload pseudo. Reload insns for such pseudo contain clobber of the pseudo and splitting did not take this into account. The patch fixes it. gcc/ChangeLog: PR rtl-optimization/104961 * lra-assigns.cc (find_reload_regno_insns): Process reload pseudo clobber. gcc/testsuite/ChangeLog: PR rtl-optimization/104961 * gcc.target/i386/pr104961.c: New.