[VMVX] Support vector operands in Math → VM conversions

[ayokunle321]

All conversion templates in MathToVM/Patterns.cpp bail when the result is a VectorType:

if (isa<VectorType>(srcOp.getResult().getType())) {
  return failure();
}

This appears in UnaryArithmeticOpConversion, BinaryArithmeticOpConversion and TernaryArithmeticOpConversion, each carrying a // TODO(benvanik): support vectors comment.

[github-actions]

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[ayokunle321]

@benvanik @AGindinson does this look fine?

[AGindinson]

Thanks @ayokunle321, appreciate this!