On 11/29/2012 01:18 PM, Andi Kleen wrote: > >> Either way, this implementatin technique was used for the MMX/SSE >> implementations without any problems for 9 years now. > > It's still wrong. > > Lying to the compiler usually bites you at some point. > It's not lying to the compiler. It is telling the compiler "do something that you have no way of knowing about". It would be lying to the compiler if the compiler was allowed to touch the FPU state, but it's not. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html