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https://github.com/golang/go
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ae5e791ed2
This avoids problems with inlining in genwrappers, which occurs after functions have been compiled. Compiling a function may cause some unused local vars to be removed from the list. Since a local var may be unused due to optimization, it is possible that a removed local var winds up beingused in the inlined version, in which case hilarity ensues. Fixes #5515. R=golang-dev, khr, dave CC=golang-dev https://golang.org/cl/10210043
35 lines
597 B
Go
35 lines
597 B
Go
// run
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// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// issue 5515: miscompilation doing inlining in generated method wrapper
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package main
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type T uint32
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func main() {
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b := make([]T, 8)
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b[0] = 0xdeadbeef
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rs := Slice(b)
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sort(rs)
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}
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type Slice []T
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func (s Slice) Swap(i, j int) {
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tmp := s[i]
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s[i] = s[j]
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s[j] = tmp
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}
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type Interface interface {
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Swap(i, j int)
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}
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func sort(data Interface) {
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data.Swap(0, 4)
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}
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