ARM Compiler armasm User Guide : 9.21 Advanced SIMD operations not affected by flush-to-zero mode

9.21 Advanced SIMD operations not affected by flush-to-zero mode

Some Advanced SIMD instructions can be carried out on denormalized numbers even in flush-to-zero mode, without flushing the results to zero.

These instructions are as follows:

Copy, absolute value, and negate (VMOV, VMVN, V{Q}ABS, and V{Q}NEG).
Duplicate (VDUP).
Swap (VSWP).
Load and store (VLDR and VSTR).
Load multiple and store multiple (VLDM and VSTM).
Transfer between extension registers and ARM general-purpose registers (VMOV).