opt_lut: reflect changes in sigmap.

Otherwise, some LUTs will be missed during elimination.
2019-01-02 10:21:58 +00:00 · 2019-01-02 10:21:58 +00:00 · c55dfb8369
parent 06143ab33f
commit c55dfb8369
1 changed files with 2 additions and 0 deletions
--- a/passes/opt/opt_lut.cc
+++ b/passes/opt/opt_lut.cc
@ -271,6 +271,8 @@ struct OptLutWorker
 					}

 					module->connect(lut_output, value);
+					sigmap.add(lut_output, value);
+
 					module->remove(lut);
 					luts.erase(lut);
 					luts_arity.erase(lut);