go source for verification 2026-05-22

test/fixedbugs/issue4529.go

@@ -0,0 +1,33 @@
+// compile
+
+// Copyright 2012 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.
+
+// Issue 4529: escape analysis crashes on "go f(g())"
+// when g has multiple returns.
+
+package main
+
+type M interface{}
+
+type A struct {
+	a string
+	b chan M
+}
+
+func (a *A) I() (b <-chan M, c chan<- M) {
+	a.b, c = make(chan M), make(chan M)
+	b = a.b
+
+	return
+}
+
+func Init(a string, b *A, c interface {
+	I() (<-chan M, chan<- M)
+}) {
+	b.a = a
+	go b.c(c.I())
+}
+
+func (a *A) c(b <-chan M, _ chan<- M) {}