2 files changed, 28 insertions, 0 deletions
diff --git a/tests/various/muxpack.v b/tests/various/muxpack.v
index 41dfed396..f3c25db8d 100644
--- a/tests/various/muxpack.v
+++ b/tests/various/muxpack.v
@@ -153,3 +153,16 @@ always @*
     else
      o <= i[4*W+:W];
 endmodule
+
+module cliffordwolf_nonexclusive_select (
+        input wire x, y, z,
+        input wire a, b, c, d,
+        output reg o
+);
+        always @* begin
+                o = a;
+                if (x) o = b;
+                if (y) o = c;
+                if (z) o = d;
+        end
+endmodule
diff --git a/tests/various/muxpack.ys b/tests/various/muxpack.ys
index dd3c143d8..7c3fe5070 100644
--- a/tests/various/muxpack.ys
+++ b/tests/various/muxpack.ys
@@ -163,3 +163,18 @@ design -import gold -as gold
 design -import gate -as gate
 miter -equiv -flatten -make_assert -make_outputs gold gate miter
 sat -verify -prove-asserts -show-ports miter
+
+design -load read
+hierarchy -top cliffordwolf_nonexclusive_select
+prep
+design -save gold
+muxpack
+opt
+stat
+select -assert-count 0 t:$mux
+select -assert-count 1 t:$pmux
+design -stash gate
+design -import gold -as gold
+design -import gate -as gate
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+sat -verify -prove-asserts -show-ports miter