Support Altivec and VSX

[barracuda156]

Is it possible to add support for Altivec (ISA 2.03) and VSX (ISA 2.07) instructions for PowerPC?

[AgnerF]

Support for different platforms with different instruction sets would be a separate project. I am not going to make this, but the vector class library has a permissive Apache License that allows anybody to make a fork for other platforms.

You are raising two issues here. I don't know why you want scalar fallback. Most software today is running in 64 bit mode which guarantees at least SSE2 support.

[barracuda156]

Thank you for responding.

SSE is x86-only, it is not supported on PowerPC. Obviously, the first best would be to use appropriate SIMD for the platform (G4 and later CPUs have Altivec), but a scalar implementation is still better than a broken build. Support for SIMD is unrelated to bitness here; even if building for ppc64, the same problem arises.