Add regression test for multi-dimensional packed class properties

Check that multi-dimensional packed vector class properties can be emitted,
assigned, and read back through a class object.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

ivtest/ivltests/sv_class_prop_packed_dims.v

@@ -0,0 +1,40 @@
+// Check that multi-dimensional packed vector class properties are supported.
+
+module test;
+
+  bit failed = 1'b0;
+
+  `define check(val, exp) do begin \
+    if (val !== exp) begin \
+      $display("FAILED(%0d). '%s' expected %0h, got %0h", `__LINE__, \
+               `"val`", exp, val); \
+      failed = 1'b1; \
+    end \
+  end while (0)
+
+  class C;
+    logic [1:0][3:0] x;
+    bit [0:1][0:3] y;
+  endclass
+
+  C c;
+
+  initial begin
+    c = new;
+
+    c.x = 8'h5a;
+    c.y = 8'hc3;
+    `check(c.x, 8'h5a);
+    `check(c.y, 8'hc3);
+
+    c.x += 8'h01;
+    c.y ^= 8'hff;
+    `check(c.x, 8'h5b);
+    `check(c.y, 8'h3c);
+
+    if (!failed) begin
+      $display("PASSED");
+    end
+  end
+
+endmodule

ivtest/regress-vvp.list

@@ -264,6 +264,7 @@ sv_chained_constructor5		vvp_tests/sv_chained_constructor5.json
 sv_class_prop_assign_op1	vvp_tests/sv_class_prop_assign_op1.json
 sv_class_prop_assign_op2	vvp_tests/sv_class_prop_assign_op2.json
 sv_class_prop_logic		vvp_tests/sv_class_prop_logic.json
+sv_class_prop_packed_dims	vvp_tests/sv_class_prop_packed_dims.json
 sv_class_prop_nest_darray1	vvp_tests/sv_class_prop_nest_darray1.json
 sv_class_prop_nest_obj1		vvp_tests/sv_class_prop_nest_obj1.json
 sv_class_prop_nest_real1	vvp_tests/sv_class_prop_nest_real1.json

ivtest/vvp_tests/sv_class_prop_packed_dims.json

@@ -0,0 +1,9 @@
+{
+    "type"          : "normal",
+    "source"        : "sv_class_prop_packed_dims.v",
+    "iverilog-args" : [ "-g2005-sv" ],
+    "vlog95" : {
+        "__comment"     : "Classes are not supported",
+        "type"          : "CE"
+    }
+}