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b2fd76ab8d
Most of the test cases in the test directory use the new go:build syntax already. Convert the rest. In general, try to place the build constraint line below the test directive comment in more places. For #41184. For #60268. Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest Reviewed-on: https://go-review.googlesource.com/c/go/+/536236 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
29 lines
540 B
Go
29 lines
540 B
Go
// run -race
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//go:build cgo && linux && amd64
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// Copyright 2020 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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package main
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import (
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"fmt"
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"testing"
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"unsafe"
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)
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var buf [2]byte
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var x unsafe.Pointer = unsafe.Pointer(&buf[0])
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func main() {
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n := testing.AllocsPerRun(1000, func() {
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x = unsafe.Pointer(uintptr(x) + 1)
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x = unsafe.Pointer(uintptr(x) - 1)
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})
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if n > 0 {
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panic(fmt.Sprintf("too many allocations; want 0 got %f", n))
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}
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}
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