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/issue16760.go | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 test/fixedbugs/issue16760.go (limited to 'test/fixedbugs/issue16760.go') diff --git a/test/fixedbugs/issue16760.go b/test/fixedbugs/issue16760.go new file mode 100644 index 0000000..a7eede4 --- /dev/null +++ b/test/fixedbugs/issue16760.go @@ -0,0 +1,42 @@ +// run + +// Copyright 2016 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 we don't start marshaling (writing to the stack) +// arguments until those arguments are evaluated and known +// not to unconditionally panic. If they unconditionally panic, +// we write some args but never do the call. That messes up +// the logic which decides how big the argout section needs to be. + +package main + +type W interface { + Write([]byte) +} + +type F func(W) + +func foo(f F) { + defer func() { + if r := recover(); r != nil { + usestack(1000) + } + }() + f(nil) +} + +func main() { + foo(func(w W) { + var x []string + w.Write([]byte(x[5])) + }) +} + +func usestack(n int) { + if n == 0 { + return + } + usestack(n - 1) +} -- cgit v1.2.3