r217994 - [X86, inline-asm] Check that the input size is correct for constraints R, q, Q,

[Eric Christopher]

You could probably create a 512-byte data structure to get it to fail
as well. (Though the explicit no-error is nice too, thanks)

-eric

On Thu, Sep 18, 2014 at 1:04 PM, Hans Wennborg <hans at chromium.org> wrote:
> On Thu, Sep 18, 2014 at 11:34 AM, Eric Christopher <echristo at gmail.com> wrote:
>>>
>>
>>
>>> +  case 'x':
>>> +  case 'f':
>>> +  case 't':
>>> +  case 'u':
>>> +    return Size <= 128;
>>
>>
>> Hans pointed out that you'll have problems here with _m256 and wanting an
>> avx register. There is, afaict, no separate constraint for "gimme an avx
>> register" that's different from SSE registers. There is the 'v' constraint
>> which works for avx 512 (evex encoded) registers.
>
> How about the attached patch?
>
>  - Hans