go source for verification 2026-05-22

test/fixedbugs/issue77534.go

@@ -0,0 +1,55 @@
+// compile
+
+// Copyright 2026 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 77534: compiler crash when >4 fields, but only one nonempty pointer field.
+
+package p
+
+type T struct {
+	a, b, c, d struct{}
+	e          *byte
+}
+
+func f1(p *any, t T) {
+	*p = t
+}
+
+func f2(p *any, t *T) {
+	*p = *t
+}
+
+func f3(p, x, y *T, b bool) {
+	var z T
+	if b {
+		z = *x
+	} else {
+		z = *y
+	}
+	*p = z
+}
+
+func f4(i any) T {
+	return i.(T)
+}
+
+type Inner struct {
+	a struct{}
+	p *byte
+}
+
+type Outer struct {
+	inner Inner
+}
+
+func f5(o1, o2 Outer, c bool) Outer {
+	var i any
+	if c {
+		i = o1
+	} else {
+		i = o2
+	}
+	return i.(Outer)
+}