[Bug middle-end/116058] [15 Regression] sh4-linux-gnu fails to bootstrap, late combine issue

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116058

--- Comment #9 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Can't hurt to give it a whirl, I've kept docker container live so that I can
patch and restart.  Richard S. knows this code far better than I do, so he
should probably be the right person to do the review though.