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Operations not affected by flush-to-zero mode

The following NEON and VFP operations can be carried out on denormalized numbers even in flush-to-zero mode, without flushing the results to zero:

  • 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).