1 // run 2 3 // Copyright 2015 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // A generated method with a return value large enough to be 8 // initialized by duffzero is not a leaf method, which violated 9 // assumptions made by cmd/internal/obj/ppc64. 10 11 package main 12 13 const N = 9 // values > 8 cause (Super).Method to use duffzero 14 15 type Base struct { 16 } 17 18 func (b *Base) Method() (x [N]uintptr) { 19 return 20 } 21 22 type Super struct { 23 Base 24 } 25 26 type T interface { 27 Method() [N]uintptr 28 } 29 30 func f(q T) { 31 q.Method() 32 } 33 34 func main() { 35 var s Super 36 f(&s) 37 } 38
