[PATCH] arm: allow SIMD instructions to be used without VFP support enabled

[Richard Earnshaw]

On 09/04/13 10:04, Jan Beulich wrote:
>>>> On 09.04.13 at 10:32, Richard Earnshaw <rearnsha@arm.com> wrote:
>> On 09/04/13 08:03, Jan Beulich wrote:
>> The only thing that's useful to think about is what is permitted by the
>> architecture.  The architecture only permits INT_NEON + FP_NEON + FP, FP
>> (in various guises) and INT_NEON.  It doesn't make sense to me to allow
>> other random permutations.  Ergo
>>
>> 	.arch_extension "neon"
>> 	.arch_extension "nofp"
>>
>> should give INT_NEON in the terminology above.
>
> Mind pointing me to where this is stated? As said, the FPSID and
> MVFRx register descriptions in the v7-A and v7-R edition of the
> ARM Architecture Reference Manual don't say anything to that
> effect according to my reading.
>
> Jan
>
>

Table A2-4 in the RevC ARMv7-A+R ARM ARM Gives the list of permitted 
combinations of Neon and FP units.

R.