Richard Sandiford wrote: > But there's the third question of whether the frame pointer is available > for general allocation. By removing frame_pointer_required, we're saying > that the frame pointer is always available for general use.
Unlike on ARM/Thumb-2, the frame pointer is unfortunately never available for general allocation on AArch64 - so we cannot use it for something actually useful. A while back there were mid-end patches proposed to allow general allocation of FP but those weren't accepted. Wilco
