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-rw-r--r--test/fixedbugs/bug500.go41
1 files changed, 41 insertions, 0 deletions
diff --git a/test/fixedbugs/bug500.go b/test/fixedbugs/bug500.go
new file mode 100644
index 0000000..2dd5df1
--- /dev/null
+++ b/test/fixedbugs/bug500.go
@@ -0,0 +1,41 @@
+// run
+
+// Copyright 2016 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 generated incorrect GC info when a global variable was
+// initialized to a slice of a value containing pointers. The initial
+// backing array for the slice was allocated in the .data section,
+// which is fine, but the backing array was not registered as a GC
+// root.
+
+package main
+
+import (
+ "runtime"
+)
+
+type s struct {
+ str string
+}
+
+var a = []struct {
+ str string
+}{
+ {""},
+}
+
+var b = "b"
+var c = "c"
+
+func init() {
+ a[0].str = b + c
+}
+
+func main() {
+ runtime.GC()
+ if a[0].str != b + c {
+ panic(a[0].str)
+ }
+}