1 files changed, 19 insertions, 0 deletions
diff --git a/test/fixedbugs/issue4545.go b/test/fixedbugs/issue4545.go
new file mode 100644
index 0000000..534ba71
--- /dev/null
+++ b/test/fixedbugs/issue4545.go
@@ -0,0 +1,19 @@
+// errorcheck
+
+// Copyright 2012 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 4545: untyped constants are incorrectly coerced
+// to concrete types when used in interface{} context.
+
+package main
+
+import "fmt"
+
+func main() {
+	var s uint
+	fmt.Println(1.0 + 1<<s) // ERROR "invalid operation|non-integer type|incompatible type"
+	x := 1.0 + 1<<s         // ERROR "invalid operation|non-integer type"
+	_ = x
+}