test: add fixedbugs/bug506 for gccgo

Building with gccgo failed with an undefined symbol error from an
unnecessary hash function.

Updates #19773

Change-Id: Ic78bf1b086ff5ee26d464089c0e14987d3fe8b02
Reviewed-on: https://go-review.googlesource.com/c/130956
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/test/fixedbugs/bug506.dir/a.go b/test/fixedbugs/bug506.dir/a.go
new file mode 100644 (file)
index 0000000..8e8a200
--- /dev/null
+++ b/test/fixedbugs/bug506.dir/a.go
@@ -0,0 +1,16 @@
+// Copyright 2018 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.
+
+package a
+
+type internal struct {
+       f1 string
+       f2 float64
+}
+
+type S struct {
+       F struct {
+               I internal
+       }
+}

diff --git a/test/fixedbugs/bug506.dir/main.go b/test/fixedbugs/bug506.dir/main.go
new file mode 100644 (file)
index 0000000..1b60e40
--- /dev/null
+++ b/test/fixedbugs/bug506.dir/main.go
@@ -0,0 +1,20 @@
+// Copyright 2018 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.
+
+package main
+
+import (
+       "fmt"
+
+       "./a"
+)
+
+var v = a.S{}
+
+func main() {
+       want := "{{ 0}}"
+       if got := fmt.Sprint(v.F); got != want {
+               panic(got)
+       }
+}

diff --git a/test/fixedbugs/bug506.go b/test/fixedbugs/bug506.go
new file mode 100644 (file)
index 0000000..7c8ccc6
--- /dev/null
+++ b/test/fixedbugs/bug506.go
@@ -0,0 +1,10 @@
+// rundir
+
+// Copyright 2018 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.
+
+// Gccgo caused an undefined symbol reference building hash functions
+// for an imported struct with unexported fields.
+
+package ignored