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Re: Building with -msse

On Sun, Apr 27, 2008 at 10:05 AM, Russ Allbery <rra@debian.org> wrote:

>  However, a user mentioned that he thinks all chips that fall into the
>  amd64 architecture have SSE and hence adding -msse would be safe for the
>  amd64 build.  Is that correct?

http://en.wikipedia.org/wiki/X86-64 says:

"SSE and SSE2 are available in 32-bit mode in modern x86 processors;
however, if they're used in 32-bit programs, those programs will only
work on systems with processors that support them. This is not an
issue in 64-bit programs, as all processors that support AMD64 support
SSE and SSE2, so using SSE and SSE2 instructions instead of x87
instructions does not reduce the set of machines on which the programs
will run."



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