https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97864
--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Brad Richardson from comment #6) > I recently updated to Big Sur, and have xcode version 12.2, but this > initially occurred on Catalina. I don't know exactly which version of xcode > was installed then. With master at r11-5267 https://gcc.gnu.org/g:6692c400f207c68fb11b44182ae127856e8b9ad3 Mon 23rd Nov 2020 I cannot reproduce this on x86_64 MacOS 10.12, 10.15 or 11.0. [I tried - no optimisation, -O2, -O -g ] Please could you check if the problem persists for you and, if so: * the command line used * any output from the ICE.