H.J. Lu wrote: > On Tue, Jun 10, 2008 at 02:27:17PM +0200, Paolo Carlini wrote: >> Joseph S. Myers wrote: >>> I hold that it is a bug that i686-* tools default to -march=i386 instead >>> of -march=i686 (whereas e.g. sparcv9-* tools default to -mcpu=sparcv9, and >>> -mcpu means -march for SPARC). >> Seconded. >> > > What arch should be used for -m32 on x86-64? Personally, I think > it should be at least i686, if not SSE2.
I suppose that depends on your opinion as to why people use -32 on x86_64. If it's just to make programs smaller, then i686 makes sense, but if it's to make programs that will run on another, smaller (older?) box it doesn't. I think we should be conservative, and assume little. Andrew.
