https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103302
--- Comment #5 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Hello, Jim, Thanks for the investigation, that's useful. I guess the register allocator shouldn't choose to coalesce registers when there's a clobber afterwards, or it should drop the clobber, since otherwise it clobbers the coalesced set. Anyway, I'm reworking the asm that prevents optimization because of bug 103149 and bug 103097, it might end up avoiding this unfortunate situation. We'll see...
