[brandmeyer]

Its less than general predication, but a little bit more than cmov/csel. The second argument can be optionally incremented and/or complemented. Combined with the dedicated zero register, you can do all sorts of interesting things to turn condition-generating instructions into data. A few interesting ones include:

   y = cond ? 0 : -1;
   y = cond ? x : -x;
   x = cond ? 0 : x+1;  //< look ma, circular addressing!