[ARM] Enable __fp16 as a function parameter and return type.

[Matthew Wahab]

On 18/05/16 09:41, Ramana Radhakrishnan wrote:
> On Mon, May 16, 2016 at 2:16 PM, Tejas Belagod
> <tejas.belagod@foss.arm.com> wrote:
>
>>
>> We do have plans to fix pre-ACLE behavior of fp16 to conform to current ACLE
>> spec, but can't say when exactly.
>
> Matthew, could you please take a look at this while you are in this area ?

Ok.

Part of this is likely to involve removing TARGET_CONVERT_TO_TYPE from the ARM 
backend. grep doesn't show anywhere that uses this hook, the only other occurrence is 
in the ARC backend. Does the hook ever get used?

Matthew