Wilco Dijkstra <wilco.dijks...@arm.com> writes: > 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.
Ah, missed that, sorry. So the asm example I gave probably is as far as the "problem" goes, and the argument can be made that that's just doing what the user asked for. Sorry for the noise... Richard
