[__arm_]vmaxnmvq_p[_f32]

Find the maximum value of the elements in a vector register. Store the maximum value in the general-purpose destination register only if it is larger than the starting value of the general-purpose destination register. The general-purpose register is read as the same width as the vector elements. For half-precision the upper half of the general-purpose register is cleared on writeback. This instruction handles NaNs in consistence with the IEEE754-2008 specification, and returns the numerical operand when one operand is numerical and the other is a quiet NaN. The absolute variant of the instruction compares the absolute value of vector elements.