1 files changed, 20 insertions, 6 deletions
diff --git a/test/blank.go b/test/blank.go
index 961ed153b..7f7d9f6f7 100644
--- a/test/blank.go
+++ b/test/blank.go
@@ -8,6 +8,11 @@
 
 package main
 
+import (
+	"os"
+	"unsafe"
+)
+
 import _ "fmt"
 
 var call string
@@ -102,8 +107,19 @@ func main() {
 		panic(sum)
 	}
 
+	// exp/ssa/interp doesn't yet skip blank fields in struct
+	// equivalence.  It also cannot support unsafe.Pointer.
+	if os.Getenv("GOSSAINTERP") == "" {
+		type T1 struct{ x, y, z int }
+		t1 := *(*T)(unsafe.Pointer(&T1{1, 2, 3}))
+		t2 := *(*T)(unsafe.Pointer(&T1{4, 5, 6}))
+		if t1 != t2 {
+			panic("T{} != T{}")
+		}
+	}
+
 	h(a, b)
-	
+
 	m()
 }
 
@@ -113,7 +129,7 @@ type I interface {
 
 type TI struct{}
 
-func (TI) M(x int, y int) {
+func (_ TI) M(x int, y int) {
 	if x != y {
 		println("invalid M call:", x, y)
 		panic("bad M")
@@ -133,14 +149,13 @@ func fp1(x, y int) {
 	}
 }
 
-
 func m() {
 	var i I
-	
+
 	i = TI{}
 	i.M(1, 1)
 	i.M(2, 2)
-	
+
 	fp(1, 1)
 	fp(2, 2)
 }
@@ -162,4 +177,3 @@ func _() {
 func ff() {
 	var _ int = 1
 }
-