more SIMD operations

[Mads Lindstrøm]

I am currently developing a background subtraction
program and I am looking at SIMD instructions to speed
it up. I would like to do this without the use of
assempler. I have therefore been looking at GCC's
support of such operations and found
http://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html.

However GCC seems only to support +, -, *, /, and
unary minus. Are there any plans to support more
operators? I am especially thinking about saturated
versions of  +, -, *, /, and absdiff.




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