Fix SIMD for x64 with MSVC

[Phil]

The SIMD settings https://bitbucket.org/blaze-lib/blaze/src/f8445b46a7ac1590d9760977055413d6134fbf85/blaze/system/Vectorization.h#lines-123,140 are not triggered on x64 for MSVC, since MSVC neither defines __SSE__ nor __SSE2__. And _M_IX86_FP is only defined with x86.

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It seems MSVC enables SSE/SSE2 with x64 by default. So similarly to this commit https://github.com/cdwfs/mathfu/commit/16f8fa5e779e62f29c9b3f1f7c12942f195d860f?branch=16f8fa5e779e62f29c9b3f1f7c12942f195d860f&diff=split the solution is to simply change the checks to this:

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#if BLAZE_USE_VECTORIZATION && ( defined(__SSE__) || ( _M_IX86_FP > 0 ) || defined(_M_AMD64) || defined(_M_X64) )
...
#if BLAZE_USE_VECTORIZATION && ( defined(__SSE2__) || ( _M_IX86_FP > 1 ) || defined(_M_AMD64) || defined(_M_X64) )

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[Klaus Iglberger]

Hi Phil!

Thanks a lot for catching this problem. We’ll update the SSE flags immediately.

Best regards,

Klaus!

[Klaus Iglberger]

Commit 5fd8caa fixes the SSE and SSE2 mode for MSVC and x64. The fix is immediately available via cloning the Blaze repository and will be officially released in Blaze 3.9.

[Phil]

Perfect, thank you.