Hi Tobias,
which binutil version do you have?
$ as -vGNU assembler version 2.35.1 (x86_64-suse-linux) using BFD version (GNU Binutils; openSUSE Leap 15.1) 2.35.1.20201123-lp151.3.12
I am asking because Jakub just submitted: https://gcc.gnu.org/pipermail/gcc-patches/2021-January/564206.html
Looks like this could be the issue. I'll re-check once that patch has hit the trunk. Best regards Thomas