Re: [Mesa-dev] [PATCH 1/3] i965/vs: Use the MAD instruction when possible.

2013-06-07 Thread Matt Turner
On Fri, Jun 7, 2013 at 6:55 PM, Eric Anholt wrote: > This is different from how we do it in the FS - we are using MAD even when > some of the args are constants, because with the relatively unrestrained > ability to schedule a MOV to prepare a temporary with that data, we can > get lower latency f

[Mesa-dev] [PATCH 1/3] i965/vs: Use the MAD instruction when possible.

2013-06-07 Thread Eric Anholt
This is different from how we do it in the FS - we are using MAD even when some of the args are constants, because with the relatively unrestrained ability to schedule a MOV to prepare a temporary with that data, we can get lower latency for the sequence of instructions. No significant performance