From eef32195bd1afb4f029bf3039377e65f0beabac2 Mon Sep 17 00:00:00 2001 From: whitequark Date: Mon, 11 Nov 2019 23:13:00 +0000 Subject: [PATCH] flowmap: don't break if that creates a k+2 (and larger) LUT either. Fixes #1405. --- passes/techmap/flowmap.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/passes/techmap/flowmap.cc b/passes/techmap/flowmap.cc index 5807178dd..96eee45db 100644 --- a/passes/techmap/flowmap.cc +++ b/passes/techmap/flowmap.cc @@ -1050,7 +1050,7 @@ struct FlowmapWorker auto cut_inputs = cut_lut_at_gate(lut, lut_gate); pool gate_inputs = cut_inputs.first, other_inputs = cut_inputs.second; - if (gate_inputs.empty() && (int)other_inputs.size() == order) + if (gate_inputs.empty() && (int)other_inputs.size() >= order) { if (debug_relax) log(" Breaking would result in a (k+1)-LUT.\n"); -- 2.30.2