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-rw-r--r--tests/opt/opt_expr_constconn.ys7
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/opt/opt_expr_constconn.ys b/tests/opt/opt_expr_constconn.ys
new file mode 100644
index 000000000..9dd848a4b
--- /dev/null
+++ b/tests/opt/opt_expr_constconn.ys
@@ -0,0 +1,7 @@
+read_verilog opt_expr_constconn.v
+select -assert-count 1 t:$add
+select -assert-count 1 t:$add %ci w:C %i
+equiv_opt -assert opt_expr
+design -load postopt
+select -assert-count 1 t:$add
+select -assert-count 0 t:$add %ci w:C %i