https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68404
--- Comment #20 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Your patch fixes the problem for me. Thanks. I've also successfully build Firefox and run the Boost testsuite with it. (the Boost testsuite hit the PR68973 ICE once with -mlra. I will reduce a testcase and post it to that PR)