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gc: bug268
Fixes #745. R=ken2 CC=golang-dev https://golang.org/cl/1008045
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@ -612,6 +612,12 @@ reswitch:
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defaultlit(&n->left, T);
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defaultlit(&n->right->left, types[TUINT]);
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defaultlit(&n->right->right, types[TUINT]);
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if(isfixedarray(n->left->type)) {
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// Insert explicit & before fixed array
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// so that back end knows to move to heap.
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n->left = nod(OADDR, n->left, N);
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typecheck(&n->left, top);
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}
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implicitstar(&n->left);
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if(n->right->left == N) {
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yyerror("missing slice bounds?");
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53
test/fixedbugs/bug268.go
Normal file
53
test/fixedbugs/bug268.go
Normal file
@ -0,0 +1,53 @@
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// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// http://code.google.com/p/go/issues/detail?id=745
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package main
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type T1 struct {
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T2 *T2
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}
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type T2 struct {
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T3 *T3
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}
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type T3 struct {
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T4 []*T4
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}
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type T4 struct {
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X int
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}
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func f() *T1 {
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x := &T1{
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&T2{
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&T3{
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[1]*T4{
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&T4{5},
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}[0:],
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},
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},
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}
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return x
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}
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func g(x int) {
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if x == 0 {
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return
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}
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g(x-1)
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}
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func main() {
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x := f()
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g(100) // smash temporaries left over on stack
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if x.T2.T3.T4[0].X != 5 {
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println("BUG", x.T2.T3.T4[0].X)
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}
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}
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