diff --git a/test/fixedbugs/issue12536.go b/test/fixedbugs/issue12536.go
new file mode 100644
index 00000000000..ceeaec4360e
--- /dev/null
+++ b/test/fixedbugs/issue12536.go
@@ -0,0 +1,22 @@
+// compile
+
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Issue 12536: compiler crashes while checking keys in a map literal for equality
+
+package p
+
+func main() {
+	m1 := map[interface{}]interface{}{
+		nil:  0,
+		true: 1,
+	}
+	m2 := map[interface{}]interface{}{
+		true: 1,
+		nil:  0,
+	}
+	println(len(m1))
+	println(len(m2))
+}