pub fn simt_masked_lane_to_bounded(eng: &SimtEngine, width: u32) -> BoundedExprExpand description
The BoundedExpr of ONE lane’s predicated output: mask ? kernel : 0 — the SIMT divergence
atom (a certified select over the compiled kernel). Uses the single-lane input names in{k}
(all lanes are byte-identical modulo the lane suffix, so one lane’s proof covers the array).