https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97534
James Clarke <jrtc27 at jrtc27 dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jrtc27 at jrtc27 dot com, | |rearnsha at arm dot com --- Comment #4 from James Clarke <jrtc27 at jrtc27 dot com> --- [Adding Richard to CC] Richard, I see you committed a big series of changes in Oct 2019 to gcc/config/arm that affected subtraction; is it possible one of those broke this test case?