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7e64377903
Consolidate decision about whether -race and -msan options are supported in cmd/internal/sys. Use consolidated functions in cmd/compile and cmd/go. Use a copy of them in cmd/dist; cmd/dist can't import cmd/internal/sys because Go 1.4 doesn't have it. Fixes #24315 Change-Id: I9cecaed4895eb1a2a49379b4848db40de66d32a9 Reviewed-on: https://go-review.googlesource.com/121816 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
36 lines
1023 B
Go
36 lines
1023 B
Go
// errorcheck -0 -race
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// +build linux,amd64 linux,ppc64le darwin,amd64 freebsd,amd64 netbsd,amd64 windows,amd64
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// Copyright 2016 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 17449: race instrumentation copies over previous instrumented nodes from parents block into child's Ninit block.
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// This code surfaces the duplication at compile time because of generated inline labels.
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package master
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type PriorityList struct {
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elems []interface{}
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}
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func (x *PriorityList) Len() int { return len(x.elems) }
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func (l *PriorityList) remove(i int) interface{} {
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elem := l.elems[i]
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l.elems = append(l.elems[:i], l.elems[i+1:]...)
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return elem
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}
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func (l *PriorityList) Next() interface{} {
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return l.remove(l.Len() - 1)
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}
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var l *PriorityList
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func Foo() {
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// It would fail here if instrumented code (including inline-label) was copied.
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for elem := l.Next(); elem != nil; elem = l.Next() {
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}
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}
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