[PATCH 3/9] d3dx9: Add 'asin' preshader opcode.

[Paul Gofman]

On 05/11/2017 05:42 PM, Matteo Bruni wrote:
> 2017-05-08 17:39 GMT+02:00 Paul Gofman <gofmanp at gmail.com>:
>
>> +/* is_nan() does not work (by design) if compiled with gcc -ffinite-math-only option which is implied by
>> + * -ffast_math. */
>> +static BOOL pres_is_nan(double v)
>> +{
>> +    return (*(ULONG64 *)&v & 0x7ff8000000000000) == 0x7ff8000000000000;
>> +}
> I don't think we care about people compiling Wine with broken CFLAGS.
> We should just trust the isnan() library function. FWIW we already do
> so in other places in Wine.
>
>
I didn't know -ffast-math is not globally supported and though of it as 
possible optimization (which I am successfully using along with some 
other in my build without any problems so far). I will change that.