https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100441
--- Comment #6 from Alex Coplan <acoplan at gcc dot gnu.org> --- On the GCC 10 branch it was the backport of the PR99037 fix which stopped the ICE (r11-7888-g37d9074e12082132ae62c12fbe958c697f638c0a on trunk, r10-9628-g1a92899b08e61d503a2897f2f66b064eb84706bc on the branch).