Porting libsanitizer to aarch64

[Richard Henderson]

On 05/23/2013 09:28 AM, Richard Earnshaw wrote:
> Doing that would add significantly to the cost of setting up the frame.

It shouldn't...

> 
> FRAME_GROWS_DOWNWARD
> Define this macro to nonzero value if the addresses of local variable slots are
> at negative offsets from the frame pointer.

Yes, but that's FRAME_POINTER_REGNUM, not HARD_FRAME_POINTER_REGNUM, i.e. the
SOFT frame pointer.  After register elimination there should be zero
differences in the local frame except for the actual order of the local variables.


r~