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-rw-r--r--test/fixedbugs/issue10353.go49
1 files changed, 49 insertions, 0 deletions
diff --git a/test/fixedbugs/issue10353.go b/test/fixedbugs/issue10353.go
new file mode 100644
index 0000000..87771d4
--- /dev/null
+++ b/test/fixedbugs/issue10353.go
@@ -0,0 +1,49 @@
+// run
+
+// Copyright 2015 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.
+
+// issue 10253: cmd/gc: incorrect escape analysis of closures
+// Partial call x.foo was not promoted to heap.
+
+package main
+
+func main() {
+ c := make(chan bool)
+ // Create a new goroutine to get a default-size stack segment.
+ go func() {
+ x := new(X)
+ clos(x.foo)()
+ c <- true
+ }()
+ <-c
+}
+
+type X int
+
+func (x *X) foo() {
+}
+
+func clos(x func()) func() {
+ f := func() {
+ print("")
+ x() // This statement crashed, because the partial call was allocated on the old stack.
+ }
+ // Grow stack so that partial call x becomes invalid if allocated on stack.
+ growstack(10000)
+ c := make(chan bool)
+ // Spoil the previous stack segment.
+ go func() {
+ c <- true
+ }()
+ <-c
+ return f
+}
+
+func growstack(x int) {
+ if x == 0 {
+ return
+ }
+ growstack(x - 1)
+}