Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/test/fixedbugs/issue24187.go b/test/fixedbugs/issue24187.go
new file mode 100644
index 0000000..45fc929
--- /dev/null
+++ b/test/fixedbugs/issue24187.go
@@ -0,0 +1,33 @@
+// +build amd64p32
+// run
+
+// Copyright 2018 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
+
+import (
+	"bytes"
+	"fmt"
+	"unsafe"
+)
+
+func main() {
+	b := make([]byte, 128)
+	for i := range b {
+		b[i] = 1
+	}
+	if bytes.IndexByte(b, 0) != -1 {
+		panic("found 0")
+	}
+	for i := range b {
+		b[i] = 0
+		c := b
+		*(*int)(unsafe.Pointer(uintptr(unsafe.Pointer(&c)) + unsafe.Sizeof(uintptr(0)))) = 1<<31 - 1
+		if bytes.IndexByte(c, 0) != i {
+			panic(fmt.Sprintf("missing 0 at %d\n", i))
+		}
+		b[i] = 1
+	}
+}