summaryrefslogtreecommitdiffstats
path: root/test/fixedbugs/issue63657.go
diff options
context:
space:
mode:
Diffstat (limited to 'test/fixedbugs/issue63657.go')
-rw-r--r--test/fixedbugs/issue63657.go48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/fixedbugs/issue63657.go b/test/fixedbugs/issue63657.go
new file mode 100644
index 0000000..e32a4a3
--- /dev/null
+++ b/test/fixedbugs/issue63657.go
@@ -0,0 +1,48 @@
+// run
+
+// Copyright 2023 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.
+
+// Make sure address calculations don't float up before
+// the corresponding nil check.
+
+package main
+
+type T struct {
+ a, b int
+}
+
+//go:noinline
+func f(x *T, p *bool, n int) {
+ *p = n != 0
+ useStack(1000)
+ g(&x.b)
+}
+
+//go:noinline
+func g(p *int) {
+}
+
+func useStack(n int) {
+ if n == 0 {
+ return
+ }
+ useStack(n - 1)
+}
+
+func main() {
+ mustPanic(func() {
+ var b bool
+ f(nil, &b, 3)
+ })
+}
+
+func mustPanic(f func()) {
+ defer func() {
+ if recover() == nil {
+ panic("expected panic, got nil")
+ }
+ }()
+ f()
+}