From: Cherry Zhang <cherryyz@google.com>
Date: Tue, 2 Jul 2019 19:36:59 +0000 (-0400)
Subject: test: add a test for gccgo bug #32901
X-Git-Tag: go1.13rc1~128
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1c1e517005786daeca0e77f2be6769e9b8e1f5a5;p=gostls13.git

test: add a test for gccgo bug #32901

This CL adds a test for gccgo bug #32901: not all the type
descriptors are registered and thus deduplicated with types
created by reflection. It needs a few levels of indirect imports
to trigger this bug.

Updates #32901.

Change-Id: Idbd89bedd63fea746769f2687f3f31c9767e5ec0
Reviewed-on: https://go-review.googlesource.com/c/go/+/184718
Reviewed-by: Ian Lance Taylor <iant@golang.org>
---

diff --git a/test/fixedbugs/issue32901.dir/a.go b/test/fixedbugs/issue32901.dir/a.go
new file mode 100644
index 0000000000..54ed7713f6
--- /dev/null
+++ b/test/fixedbugs/issue32901.dir/a.go
@@ -0,0 +1,15 @@
+// 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.
+
+package a
+
+type T struct { x int }
+
+func F() interface{} {
+	return [2]T{}
+}
+
+func P() interface{} {
+	return &[2]T{}
+}
diff --git a/test/fixedbugs/issue32901.dir/b.go b/test/fixedbugs/issue32901.dir/b.go
new file mode 100644
index 0000000000..932d7b0afa
--- /dev/null
+++ b/test/fixedbugs/issue32901.dir/b.go
@@ -0,0 +1,15 @@
+// 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.
+
+package b
+
+import "./a"
+
+func F() interface{} {
+	return a.F()
+}
+
+func P() interface{} {
+	return a.P()
+}
diff --git a/test/fixedbugs/issue32901.dir/c.go b/test/fixedbugs/issue32901.dir/c.go
new file mode 100644
index 0000000000..5f31c7ff02
--- /dev/null
+++ b/test/fixedbugs/issue32901.dir/c.go
@@ -0,0 +1,17 @@
+// 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.
+
+package c
+
+import "./b"
+
+func F() interface{} {
+	go func(){}() // make it non-inlineable
+	return b.F()
+}
+
+func P() interface{} {
+	go func(){}() // make it non-inlineable
+	return b.P()
+}
diff --git a/test/fixedbugs/issue32901.dir/main.go b/test/fixedbugs/issue32901.dir/main.go
new file mode 100644
index 0000000000..28bb8cde28
--- /dev/null
+++ b/test/fixedbugs/issue32901.dir/main.go
@@ -0,0 +1,18 @@
+// 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.
+
+package main
+
+import "./c"
+import "reflect"
+
+func main() {
+	x := c.F()
+	p := c.P()
+	t := reflect.PtrTo(reflect.TypeOf(x))
+	tp := reflect.TypeOf(p)
+	if t != tp {
+		panic("FAIL")
+	}
+}
diff --git a/test/fixedbugs/issue32901.go b/test/fixedbugs/issue32901.go
new file mode 100644
index 0000000000..004c3da79e
--- /dev/null
+++ b/test/fixedbugs/issue32901.go
@@ -0,0 +1,9 @@
+// rundir
+
+// 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.
+
+// Issue 32901: type descriptor equality bug in gccgo.
+
+package ignored