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-rw-r--r--test/fixedbugs/issue32288.go48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/fixedbugs/issue32288.go b/test/fixedbugs/issue32288.go
new file mode 100644
index 0000000..91c930c
--- /dev/null
+++ b/test/fixedbugs/issue32288.go
@@ -0,0 +1,48 @@
+// run
+
+// Copyright 2019 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
+
+type T struct {
+ s [1]string
+ pad [16]uintptr
+}
+
+//go:noinline
+func f(t *int, p *int) []T {
+ var res []T
+ for {
+ var e *T
+ res = append(res, *e)
+ }
+}
+
+func main() {
+ defer func() {
+ useStack(100) // force a stack copy
+ // We're expecting a panic.
+ // The bug in this issue causes a throw, which this recover() will not squash.
+ recover()
+ }()
+ junk() // fill the stack with invalid pointers
+ f(nil, nil)
+}
+
+func useStack(n int) {
+ if n == 0 {
+ return
+ }
+ useStack(n - 1)
+}
+
+//go:noinline
+func junk() uintptr {
+ var a [128]uintptr // 1k of bad pointers on the stack
+ for i := range a {
+ a[i] = 0xaa
+ }
+ return a[12]
+}