Add tests/simple_abc9

tests/simple_abc9/run-test.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+OPTIND=1
+seed=""    # default to no seed specified
+while getopts "S:" opt
+do
+    case "$opt" in
+	S) arg="${OPTARG#"${OPTARG%%[![:space:]]*}"}" # remove leading space
+	   seed="SEED=$arg" ;;
+    esac
+done
+shift "$((OPTIND-1))"
+
+# check for Icarus Verilog
+if ! which iverilog > /dev/null ; then
+  echo "$0: Error: Icarus Verilog 'iverilog' not found."
+  exit 1
+fi
+
+cp ../simple/*.v .
+rm dff_different_styles.v # FIXME: dffsr1 fails because opt_rmdff does something fishy (#816)
+rm partsel.v # FIXME: Contains 1'hx, thus write_xaiger fails
+exec ${MAKE:-make} -f ../tools/autotest.mk $seed *.v EXTRA_FLAGS="-p \"synth -abc9 -lut 4\""