manual: Fix a custom pass example.

Fixes #3156.

diff --git a/manual/PRESENTATION_Prog/Makefile b/manual/PRESENTATION_Prog/Makefile
index 7e3cf814b449621cf0fcdc486f7ceeb91b541d9b..2ac8e5bed9ff3ff5fc3f53d5ee18ffb8352bc30c 100644 (file)
--- a/manual/PRESENTATION_Prog/Makefile
+++ b/manual/PRESENTATION_Prog/Makefile
@@ -16,6 +16,6 @@ test1.log: my_cmd.so
        mv test1.log_new test1.log
 
 test2.log: my_cmd.so
-       ../../yosys -Ql test2.log_new -m ./my_cmd.so -p 'test2' sigmap_test.v
+       ../../yosys -Ql test2.log_new -m ./my_cmd.so -p 'hierarchy -top test; test2' sigmap_test.v
        mv test2.log_new test2.log