1 files changed, 54 insertions, 0 deletions
diff --git a/test/fixedbugs/bug455.go b/test/fixedbugs/bug455.go
new file mode 100644
index 0000000..9f6974d
--- /dev/null
+++ b/test/fixedbugs/bug455.go
@@ -0,0 +1,54 @@
+// run
+
+// 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 4156: out of fixed registers when chaining method calls.
+// Used to happen with 6g.
+
+package main
+
+type test_i interface {
+	Test() test_i
+	Result() bool
+}
+
+type test_t struct {
+}
+
+func newTest() *test_t {
+	return &test_t{}
+}
+
+type testFn func(string) testFn
+
+func main() {
+	test := newTest()
+
+	switch {
+	case test.
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Test().
+		Result():
+		// case worked
+	default:
+		panic("Result returned false unexpectedly")
+	}
+}
+
+func (t *test_t) Test() test_i {
+	return t
+}
+
+func (t *test_t) Result() bool {
+	return true
+}