From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue25897a.go | 51 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 test/fixedbugs/issue25897a.go (limited to 'test/fixedbugs/issue25897a.go') diff --git a/test/fixedbugs/issue25897a.go b/test/fixedbugs/issue25897a.go new file mode 100644 index 0000000..d4fa6c8 --- /dev/null +++ b/test/fixedbugs/issue25897a.go @@ -0,0 +1,51 @@ +// run + +// Copyright 2019 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. + +// Make sure the runtime can scan args of an unstarted goroutine +// which starts with a reflect-generated function. + +package main + +import ( + "reflect" + "runtime" +) + +const N = 100 + +func main() { + runtime.GOMAXPROCS(1) + // Run GC in a loop. This makes it more likely GC will catch + // an unstarted goroutine then if we were to GC after kicking + // everything off. + go func() { + for { + runtime.GC() + } + }() + c := make(chan bool, N) + for i := 0; i < N; i++ { + // Test both with an argument and without because this + // affects whether the compiler needs to generate a + // wrapper closure for the "go" statement. + f := reflect.MakeFunc(reflect.TypeOf(((func(*int))(nil))), + func(args []reflect.Value) []reflect.Value { + c <- true + return nil + }).Interface().(func(*int)) + go f(nil) + + g := reflect.MakeFunc(reflect.TypeOf(((func())(nil))), + func(args []reflect.Value) []reflect.Value { + c <- true + return nil + }).Interface().(func()) + go g() + } + for i := 0; i < N*2; i++ { + <-c + } +} -- cgit v1.2.3