| // asmcheck | |
| // Copyright 2020 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 codegen | |
| func efaceExtract(e interface{}) int { | |
| // This should be compiled with only | |
| // a single conditional jump. | |
| // amd64:-"JMP" | |
| if x, ok := e.(int); ok { | |
| return x | |
| } | |
| return 0 | |
| } |