| // 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. |
| |
| // go:build ignore |
| |
| package testdata |
| |
| type J interface { |
| Foo() |
| Bar() |
| } |
| |
| type B struct { |
| p int |
| } |
| |
| func (b B) Foo() {} |
| func (b B) Bar() {} |
| |
| func Wobble(b *B, s []J) { |
| x := (*[3]J)(s) |
| x[1] = b |
| |
| a := &s[2] |
| (*a).Bar() |
| } |
| |
| // Relevant SSA: |
| // func Wobble(b *B, s []J): |
| // t0 = slice to array pointer *[3]J <- []J (s) *[3]J |
| // t1 = &t0[1:int] *J |
| // t2 = make J <- *B (b) J |
| // *t1 = t2 |
| // t3 = &s[2:int] *J |
| // ... |
| |
| // WANT: |
| // Local(t1) -> Slice([]testdata.J) |
| // Slice([]testdata.J) -> Local(t1), Local(t3) |
