SIMD ISAReturn TypeNameArgumentsInstruction Group
Heliumint8x16_t[__arm_]vhcaddq_rot90[_s8](int8x16_t a, int8x16_t b)Complex arithmetic / Complex addition
Description
This instruction performs a complex addition of the first operand with the second operand rotated in the complex plane by the specified amount. A 90 degree rotation of this operand corresponds to a multiplication by a positive imaginary unit, while a 270 degree rotation corresponds to a multiplication by a negative imaginary unit. Even and odd elements of the source vectors are interpreted to be the real and imaginary components, respectively, of a complex number. The result is halved before being written to the destination register.
Results
Qd result
This intrinsic compiles to the following instructions:

VHCADD.S8 Qd,Qn,Qm,#90

Argument Preparation
a register: Qnb register: Qm
Architectures
MVE