| 1 | // Copyright 2021 The Go Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // go:build ignore |
| 6 | |
| 7 | package testdata |
| 8 | |
| 9 | type I interface{} |
| 10 | |
| 11 | func foo(i I) (I, I) { |
| 12 | return i, i |
| 13 | } |
| 14 | |
| 15 | func doWork(ii I) {} |
| 16 | |
| 17 | func close(iii I) {} |
| 18 | |
| 19 | func Baz(inp I) { |
| 20 | a, b := foo(inp) |
| 21 | defer close(a) |
| 22 | go doWork(b) |
| 23 | } |
| 24 | |
| 25 | // Relevant SSA: |
| 26 | // func Baz(inp I): |
| 27 | // t0 = foo(inp) |
| 28 | // t1 = extract t0 #0 |
| 29 | // t2 = extract t0 #1 |
| 30 | // defer close(t1) |
| 31 | // go doWork(t2) |
| 32 | // rundefers |
| 33 | // ... |
| 34 | // func foo(i I) (I, I): |
| 35 | // return i, i |
| 36 | |
| 37 | // WANT: |
| 38 | // Local(inp) -> Local(i) |
| 39 | // Local(t1) -> Local(iii) |
| 40 | // Local(t2) -> Local(ii) |
| 41 | // Local(i) -> Local(t0[0]), Local(t0[1]) |
| 42 |