From bad1fc126536f14fd6f00a93e1b76320c1510bf2 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Mon, 9 Aug 2021 14:59:56 -0700 Subject: [PATCH] test: add test case for CL 340609 The first version of CL 340609 for gofrontend passed all existing tests, but not this one. For #42076 Change-Id: I6491e2f186091bdae140b7f7befa511806a6478a Reviewed-on: https://go-review.googlesource.com/c/go/+/340950 Trust: Ian Lance Taylor Run-TryBot: Ian Lance Taylor TryBot-Result: Go Bot Reviewed-by: Cherry Mui Reviewed-by: Than McIntosh --- test/fixedbugs/bug514.go | 55 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 test/fixedbugs/bug514.go diff --git a/test/fixedbugs/bug514.go b/test/fixedbugs/bug514.go new file mode 100644 index 0000000000..3fb7f32a30 --- /dev/null +++ b/test/fixedbugs/bug514.go @@ -0,0 +1,55 @@ +// run + +// Copyright 2021 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 + +type iface interface { + Get() int +} + +//go:notinheap +type notInHeap struct { + i int +} + +type myInt struct { + f *notInHeap +} + +func (mi myInt) Get() int { + return int(mi.f.i) +} + +type embed struct { + *myInt +} + +var val = 1234 + +var valNotInHeap = notInHeap{val} + +func main() { + i := val + check(i) + mi := myInt{f: &valNotInHeap} + check(mi.Get()) + ifv := iface(mi) + check(ifv.Get()) + ifv = iface(&mi) + check(ifv.Get()) + em := embed{&mi} + check(em.Get()) + ifv = em + check(ifv.Get()) + ifv = &em + check(ifv.Get()) +} + +func check(v int) { + if v != val { + panic(v) + } +}