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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>
97 lines
1.9 KiB
Go
97 lines
1.9 KiB
Go
// buildrun -t 10 -gcflags=-d=ssa/insert_resched_checks/on,ssa/check/on
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//go:build !nacl && !js && disabled_see_issue_18589
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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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// Test is disabled because it flakes when run in all.bash
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// on some platforms, but is useful standalone to verify
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// that rescheduling checks are working (and we may wish
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// to investigate the flake, since it suggests that the
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// loop rescheduling check may not work right on those
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// platforms).
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// This checks to see that call-free infinite loops do not
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// block garbage collection. IF YOU RUN IT STANDALONE without
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// -gcflags=-d=ssa/insert_resched_checks/on in a not-experimental
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// build, it should hang.
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package main
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import (
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"runtime"
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)
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var someglobal1 int
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var someglobal2 int
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var someglobal3 int
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//go:noinline
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func f() {}
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func standinacorner1() {
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for someglobal1&1 == 0 {
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someglobal1++
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someglobal1++
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}
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}
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func standinacorner2(i int) {
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// contains an irreducible loop containing changes to memory
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if i != 0 {
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goto midloop
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}
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loop:
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if someglobal2&1 != 0 {
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goto done
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}
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someglobal2++
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midloop:
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someglobal2++
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goto loop
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done:
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return
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}
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func standinacorner3() {
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for someglobal3&1 == 0 {
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if someglobal3&2 != 0 {
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for someglobal3&3 == 2 {
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someglobal3++
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someglobal3++
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someglobal3++
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someglobal3++
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}
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}
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someglobal3++
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someglobal3++
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someglobal3++
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someglobal3++
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}
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}
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func main() {
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go standinacorner1()
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go standinacorner2(0)
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go standinacorner3()
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// println("About to stand in a corner1")
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for someglobal1 == 0 {
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runtime.Gosched()
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}
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// println("About to stand in a corner2")
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for someglobal2 == 0 {
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runtime.Gosched()
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}
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// println("About to stand in a corner3")
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for someglobal3 == 0 {
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runtime.Gosched()
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}
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// println("About to GC")
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runtime.GC()
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// println("Success")
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}
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