diff --git a/src/cmd/compile/internal/syntax/testdata/issue70974.go b/src/cmd/compile/internal/syntax/testdata/issue70974.go
new file mode 100644
index 00000000000000..ebc69eda950254
--- /dev/null
+++ b/src/cmd/compile/internal/syntax/testdata/issue70974.go
@@ -0,0 +1,17 @@
+// Copyright 2025 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 p
+
+func _() {
+M:
+L:
+	for range 0 {
+		break L
+		break /* ERROR invalid break label M */ M
+	}
+	for range 0 {
+		break /* ERROR invalid break label L */ L
+	}
+}