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-rw-r--r--test/fixedbugs/issue55122.go42
1 files changed, 42 insertions, 0 deletions
diff --git a/test/fixedbugs/issue55122.go b/test/fixedbugs/issue55122.go
new file mode 100644
index 0000000..24da89d
--- /dev/null
+++ b/test/fixedbugs/issue55122.go
@@ -0,0 +1,42 @@
+// run
+
+// Copyright 2022 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
+
+func main() {
+ for i := 0; i < 10000; i++ {
+ h(i)
+ sink = make([]byte, 1024) // generate some garbage
+ }
+}
+
+func h(iter int) {
+ var x [32]byte
+ for i := 0; i < 32; i++ {
+ x[i] = 99
+ }
+ g(&x)
+ if x == ([32]byte{}) {
+ return
+ }
+ for i := 0; i < 32; i++ {
+ println(x[i])
+ }
+ panic(iter)
+}
+
+//go:noinline
+func g(x interface{}) {
+ switch e := x.(type) {
+ case *[32]byte:
+ var c [32]byte
+ *e = c
+ case *[]byte:
+ *e = nil
+ }
+}
+
+var sink []byte