SVE Instruction List by Dougall Johnson
FCADD: Floating-point complex add with 270° rotate (predicated)
FCADD Zdn.D, Pg/M, Zdn.D, Zm.D, #270 (SVE (SME
svfloat64_t svcadd[_f64]_m(svbool_t pg, svfloat64_t op1, svfloat64_t op2, 270)
128-bit SVE

For each pair of 64-bit floats, considered as the real and imaginary components of a complex number, set (3) to (2) + ( (1) rotated by 270° ).
256-bit SVE

For each pair of 64-bit floats, considered as the real and imaginary components of a complex number, set (3) to (2) + ( (1) rotated by 270° ).
512-bit SVE

For each pair of 64-bit floats, considered as the real and imaginary components of a complex number, set (3) to (2) + ( (1) rotated by 270° ).
Larger sizes
1024-bit SVE

For each pair of 64-bit floats, considered as the real and imaginary components of a complex number, set (3) to (2) + ( (1) rotated by 270° ).
2048-bit SVE

For each pair of 64-bit floats, considered as the real and imaginary components of a complex number, set (3) to (2) + ( (1) rotated by 270° ).
Report mistakes or give feedback
Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.