[LLVMdev] Instruction Constraints Question

[dag at cray.com]

Cameron McInally <cameron.mcinally at nyu.edu> writes:

>> How would that (or any early clobbering) enforce $src1 != $mask? Or is
>> it a fortuitous side-effect of implementation?
>
> In this case, $src1 is also the destination register. A masked gather will
> merge the conditionally selected elements into the input vector.

Oh yes, that's right.  Thanks for the reminder, Cameron.  :)

                       -David