test: add a test that crashed gccgo

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13683046

diff --git a/test/fixedbugs/bug476.go b/test/fixedbugs/bug476.go
new file mode 100644 (file)
index 0000000..4ea2174
--- /dev/null
+++ b/test/fixedbugs/bug476.go
@@ -0,0 +1,23 @@
+// compile
+
+// Copyright 2013 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.
+
+// Logical operation on named boolean type returns the same type,
+// supporting an implicit convertion to an interface type.  This used
+// to crash gccgo.
+
+package p
+
+type B bool
+
+func (b B) M() {}
+
+type I interface {
+       M()
+}
+
+func F(a, b B) I {
+       return a && b
+}