golang zombie_struct_select 代码
文件路径：/test/abi/zombie_struct_select.go
/ run
/ Copyright 2021 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 main
type patchlist struct {
head, tail uint32
}
type frag struct {
i uint32
out patchlist
}
/go:noinline
/go:registerparams
func patch(l patchlist, i uint32) {
}
/go:noinline
/go:registerparams
func badbad(f1, f2 frag) frag {
/ concat of failure is failure
if f1.i == 0 || f2.i == 0 { / internal compiler error: 'badbad': incompatible OpArgIntReg [4]: v42 and v26
return frag{}
}
patch(f1.out, f2.i)
return frag{f1.i, f2.out}
}
func main() {
badbad(frag{i: 2}, frag{i: 3})
}