https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113673
--- Comment #4 from Roger Sayle <roger at nextmovesoftware dot com> --- The identified patch implements += the same way as |=. Presumably a version of the test case replacing "m += *data++;" with "m |= *data++;" would be more useful at identifying a patch that actually changed EH edges.
