1 files changed, 35 insertions, 0 deletions
diff --git a/test/fixedbugs/issue27961.go b/test/fixedbugs/issue27961.go
new file mode 100644
index 0000000..f8b4f66
--- /dev/null
+++ b/test/fixedbugs/issue27961.go
@@ -0,0 +1,35 @@
+// run
+
+// Copyright 2018 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 27961: some optimizations generate OffPtr with wrong
+// types, which causes invalid bytecode on Wasm.
+
+package main
+
+import "math"
+
+type Vec2 [2]float64
+
+func main() {
+	var a Vec2
+	a.A().B().C().D()
+}
+
+func (v Vec2) A() Vec2 {
+	return Vec2{v[0], v[0]}
+}
+
+func (v Vec2) B() Vec2 {
+	return Vec2{1.0 / v.D(), 0}
+}
+
+func (v Vec2) C() Vec2 {
+	return Vec2{v[0], v[0]}
+}
+
+func (v Vec2) D() float64 {
+	return math.Sqrt(v[0])
+}