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Re: MMX and SIMD
- From: llewelly at xmission dot com
- To: "William M. Quarles" <walrus at bellsouth dot net>
- Cc: gcc-help at gcc dot gnu dot org
- Date: 24 May 2004 22:28:50 -0600
- Subject: Re: MMX and SIMD
- References: <40AFF838.30903@bellsouth.net>
"William M. Quarles" <walrus@bellsouth.net> writes:
> Are MMX and SIMD instruction capabilities included in GCC now?
Yes. There are both intrinsics and also optimization flags to enable
automatic generation of them.
See http://xrl.us/b43h and search for -mfpmath and -mmmx for
optimization flags, http://xrl.us/b43i for vector intrinsics, and
http://xrl.us/b43k for platform specific x86 builtins, including
mmx and sse[2] builtins.