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/issue54343.go | 45 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 test/fixedbugs/issue54343.go (limited to 'test/fixedbugs/issue54343.go') diff --git a/test/fixedbugs/issue54343.go b/test/fixedbugs/issue54343.go new file mode 100644 index 0000000..10b91a5 --- /dev/null +++ b/test/fixedbugs/issue54343.go @@ -0,0 +1,45 @@ +// run + +// Copyright 2022 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. + +package main + +import "runtime" + +func main() { + if wait() { + panic("GC'd early") + } + m = nil + if !wait() { + panic("never GC'd") + } +} + +var m = New[int]().M + +func New[X any]() *T[X] { + p := new(T[X]) + runtime.SetFinalizer(p, func(*T[X]) { close(done) }) + return p +} + +type T[X any] [4]int // N.B., [4]int avoids runtime's tiny object allocator + +func (*T[X]) M() {} + +var done = make(chan int) + +func wait() bool { + for i := 0; i < 10; i++ { + runtime.GC() + select { + case <-done: + return true + default: + } + } + return false +} -- cgit v1.2.3