Every post I have read in the forums regarding correct CFLAGS for a 32 bit gentoo install suggests using athlon-xp for an AMD64 processor. In the handbook the developers recommend the following: CFLAGS="-march=athlon-xp -pipe -O2" # AMD64 users use march=k8 My question is about the first comment... Should AMD64 users be using k8 in their CFLAGS on 32 bit installs? Who is correct? the forum users or the documentation? Reproducible: Always Steps to Reproduce: 1. 2. 3.
According to the amd64 devs, the docs are correct not the forums. Setting the -march to athlon-xp on a amd64 box will disable flags like -msse2 whereas k8 won't. Marking INVALID.
