x86jit: Optimize vcmp for single and simd.
x86jit: Just do the ES/NS compare once.
x86jit: Interleave reg usage in vcmp.
Better support for new archs.
Merge pull request #7079 from xsacha/new_archs

Better support for new archs.
Merge pull request #7078 from unknownbrackets/jit-minor

x86jit: Use simd for vcmp comparisons where possible