diff --git a/test/fixedbugs/issue33020.dir/a.go b/test/fixedbugs/issue33020.dir/a.go
new file mode 100644
index 0000000000..948f4fdf3b
--- /dev/null
+++ b/test/fixedbugs/issue33020.dir/a.go
@@ -0,0 +1,16 @@
+// 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
+
+var G1 int
+var G2 int
+var G3 int
+var G4 int
+var G5 int
+var G6 int
+var G7 int
+var G8 int
+var G9 int
+var G10 int
diff --git a/test/fixedbugs/issue33020.dir/b.go b/test/fixedbugs/issue33020.dir/b.go
new file mode 100644
index 0000000000..354ab3ebfe
--- /dev/null
+++ b/test/fixedbugs/issue33020.dir/b.go
@@ -0,0 +1,22 @@
+// 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"
+
+var N n
+
+type n struct{}
+
+func (r n) M1() int  { return a.G1 }
+func (r n) M2() int  { return a.G2 }
+func (r n) M3() int  { return a.G3 }
+func (r n) M4() int  { return a.G4 }
+func (r n) M5() int  { return a.G5 }
+func (r n) M6() int  { return a.G6 }
+func (r n) M7() int  { return a.G7 }
+func (r n) M8() int  { return a.G8 }
+func (r n) M9() int  { return a.G9 }
+func (r n) M10() int { return a.G10 }
diff --git a/test/fixedbugs/issue33020.go b/test/fixedbugs/issue33020.go
new file mode 100644
index 0000000000..ccdf187453
--- /dev/null
+++ b/test/fixedbugs/issue33020.go
@@ -0,0 +1,9 @@
+// compiledir
+
+// 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 33020: gccgo undefined behavior with inlinable function
+
+package ignored