https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115010
--- Comment #19 from Thorsten Otto <ad...@tho-otto.de> --- Bisecting gave me: >From dba20679f1bf138ab5e61ad131b887db42083174 Mon Sep 17 00:00:00 2001 From: Xianmiao Qu <cooper...@linux.alibaba.com> Date: Sun, 25 Aug 2024 11:22:21 -0600 Subject: [PATCH] [PATCH] Re-add calling emit_clobber in lower-subreg.cc's resolve_simple_move. Which basically reverts the commit already mentioned above. So it looks like the problem was caused by the side-effects mentioned in the patch.