On Fri, Apr 15, 2022 at 09:07:10AM +0200, Elmar Stellnberger wrote: > That is not correct. You can make use of SSE instructions also in > x86_32/i386 mode. > > I found f.i.: > https://gcc.gcc.gnu.narkive.com/k0KqaZF2/i386-sse-test-question Well x86_64 uses it all the time, not just optionally, and twice the registers still matters. -- Len Sorensen