[PATCH] Intrinsics for ADCX, ADOX, RDSEED and PREFETCHW

Kirill Yukhin kirill.yukhin@gmail.com
Thu Jul 19 09:24:00 GMT 2012


> -  else
> -    return "prefetchw\t%a0";
> -}
> +  "prefetch\t%a0"
>
> You have a mnemonic clash here. prefetchw is not good name for a new
> instruction, it clashes with existing 3dnow name. Intel will need to
> fix the spec, you probably won't be able to change prefetchw encoding
> in binutils.

Hi Uros,
prefetchw from Intel's recent spec is identical to one from AMD's 3Dnow.
So, they don't clash, this is just a support of prefetchw on Intel HW

Thanks, K



More information about the Gcc-patches mailing list