diff --git a/test/escape4.go b/test/escape4.go
index 4e50231bf9..e381248476 100644
--- a/test/escape4.go
+++ b/test/escape4.go
@@ -38,6 +38,10 @@ func f2() {} // ERROR "can inline f2"
 func f3() { panic(1) } // ERROR "can inline f3" "1 escapes to heap"
 func f4() { recover() }
 
+// TODO(cuonglm): remove f5, f6 //go:noinline and update the error message
+//                once GOEXPERIMENT=nounified is gone.
+
+//go:noinline
 func f5() *byte {
 	type T struct {
 		x [1]byte
@@ -46,6 +50,7 @@ func f5() *byte {
 	return &t.x[0]
 }
 
+//go:noinline
 func f6() *byte {
 	type T struct {
 		x struct {
diff --git a/test/run.go b/test/run.go
index e33ab4cff3..5497c6c231 100644
--- a/test/run.go
+++ b/test/run.go
@@ -342,9 +342,7 @@ func (t *test) initExpectFail() {
 		failureSets = append(failureSets, types2Failures32Bit)
 	}
 
-	if unifiedEnabled {
-		failureSets = append(failureSets, unifiedFailures)
-	} else {
+	if !unifiedEnabled {
 		failureSets = append(failureSets, go118Failures)
 	}
 
@@ -2019,10 +2017,6 @@ var _ = setOf(
 	"fixedbugs/issue7525.go",  // types2 reports init cycle error on different line - ok otherwise
 )
 
-var unifiedFailures = setOf(
-	"escape4.go", // unified IR can inline f5 and f6; test doesn't expect this
-)
-
 func setOf(keys ...string) map[string]bool {
 	m := make(map[string]bool, len(keys))
 	for _, key := range keys {