https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113363
--- Comment #15 from anlauf at gcc dot gnu.org --- Paul, the fix was fine for 15-mainline and 14-branch. There seems to be testsuite fallout on 13-branch (pr116040), because this fix apparently depends on the fix for pr89645, which is quite large (too large for 13-branch I am afraid). If you revert r13-8926, you might fix pr116040.
