Am 02.11.2022 um 13:59 schrieb Torbjörn Granlund: > I seem to have misread the report. I thought the > > movq mem,xmm > > instructions were the problem. Good that this got clearer. > I pushed a fix to the repo. Please try it. https://gmplib.org/repo/gmp/rev/3ac5afa36be5 works fine for me on core2. Thank you. Simon