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diff --git a/test/TableGen/math.td b/test/TableGen/math.td
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+// RUN: llvm-tblgen %s | FileCheck %s
+
+class Int<int value> {
+ int Value = value;
+}
+
+def v1024 : Int<1024>;
+// CHECK: Value = 1024
+
+def v1025 : Int<!add(v1024.Value, 1)>;
+// CHECK: Value = 1025
+
+def v2048 : Int<!add(v1024.Value, v1024.Value)>;
+// CHECK: Value = 2048
+