[AArch64] Usage of FP regs whe only GP regs are allowed

[Ramana Radhakrishnan]

On 04/08/14 23:34, Evandro Menezes wrote:
> I noticed that when -mgeneral-regs-only FP registers are still used by the
> LRA for spilling.  Though in rare cases I saw an ICE because of it, even
> when it works it seems to me that the compiler should follow the desires of
> its user.
>

If you've noticed that mgeneral-regs-only causes the use of FP registers 
that is a bug and needs to be fixed. Please file a proper bug report 
with an actual testcase that can be of use for someone to recreate the 
problem.

> I filed PR 62014 and posted there a patch to address this issue and restrict
> the LRA from using FP registers if the user so desires.

Please send patches to the mailing list. I think however in this case 
you are papering over the problem as explained in the PR.

regards
Ramana