gc: bug268
Fixes #745.
R=ken2
CC=golang-dev
https://golang.org/cl/1008045
diff --git a/src/cmd/gc/typecheck.c b/src/cmd/gc/typecheck.c
index d6df9dd..ae1d13d 100644
--- a/src/cmd/gc/typecheck.c
+++ b/src/cmd/gc/typecheck.c
@@ -612,6 +612,12 @@
defaultlit(&n->left, T);
defaultlit(&n->right->left, types[TUINT]);
defaultlit(&n->right->right, types[TUINT]);
+ if(isfixedarray(n->left->type)) {
+ // Insert explicit & before fixed array
+ // so that back end knows to move to heap.
+ n->left = nod(OADDR, n->left, N);
+ typecheck(&n->left, top);
+ }
implicitstar(&n->left);
if(n->right->left == N) {
yyerror("missing slice bounds?");
diff --git a/test/fixedbugs/bug268.go b/test/fixedbugs/bug268.go
new file mode 100644
index 0000000..a38d054
--- /dev/null
+++ b/test/fixedbugs/bug268.go
@@ -0,0 +1,53 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2010 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.
+
+// http://code.google.com/p/go/issues/detail?id=745
+
+package main
+
+type T1 struct {
+ T2 *T2
+}
+
+type T2 struct {
+ T3 *T3
+}
+
+type T3 struct {
+ T4 []*T4
+}
+
+type T4 struct {
+ X int
+}
+
+func f() *T1 {
+ x := &T1{
+ &T2{
+ &T3{
+ [1]*T4{
+ &T4{5},
+ }[0:],
+ },
+ },
+ }
+ return x
+}
+
+func g(x int) {
+ if x == 0 {
+ return
+ }
+ g(x-1)
+}
+
+func main() {
+ x := f()
+ g(100) // smash temporaries left over on stack
+ if x.T2.T3.T4[0].X != 5 {
+ println("BUG", x.T2.T3.T4[0].X)
+ }
+}
