From bbb88f9091b44e1cb80d767f0ce3c77334e2ccb6 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Mon, 21 Dec 2015 14:38:25 -0800 Subject: [PATCH] test: add test that gccgo miscompiled Change-Id: Ic3f006f86a86de628e14b107f88a5923ea856a58 Reviewed-on: https://go-review.googlesource.com/18093 Reviewed-by: David Symonds --- test/fixedbugs/bug497.go | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 test/fixedbugs/bug497.go diff --git a/test/fixedbugs/bug497.go b/test/fixedbugs/bug497.go new file mode 100644 index 0000000000..7081b1cb35 --- /dev/null +++ b/test/fixedbugs/bug497.go @@ -0,0 +1,28 @@ +// run + +// Copyright 2015 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. + +// Gccgo used to miscompile passing a global variable with a +// zero-sized type to a function. + +package main + +type T struct { + field s +} + +type s struct{} + +var X T + +func F(_ T, c interface{}) int { + return len(c.(string)) +} + +func main() { + if v := F(X, "hi"); v != 2 { + panic(v) + } +}