https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105256
--- Comment #25 from Chris Clayton <chris2553 at googlemail dot com> --- I went ahead and patched gcc-11-0220409 and with the resultant compiler have had two successful builds of firefox-99. I then reverted to the unpatched gcc and a build of firefox-99 failed with the same ICE that I reported in comment 1.
