1 files changed, 49 insertions, 0 deletions
diff --git a/test/fixedbugs/issue31573.go b/test/fixedbugs/issue31573.go
new file mode 100644
index 0000000..005910e
--- /dev/null
+++ b/test/fixedbugs/issue31573.go
@@ -0,0 +1,49 @@
+// errorcheck -0 -m
+
+// 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 p
+
+func f(...*int) {} // ERROR "can inline f$"
+
+func g() {
+	defer f()
+	defer f(new(int))           // ERROR "... argument does not escape$" "new\(int\) does not escape$"
+	defer f(new(int), new(int)) // ERROR "... argument does not escape$" "new\(int\) does not escape$"
+
+	defer f(nil...)
+	defer f([]*int{}...)                   // ERROR "\[\]\*int{} does not escape$"
+	defer f([]*int{new(int)}...)           // ERROR "\[\]\*int{...} does not escape$" "new\(int\) does not escape$"
+	defer f([]*int{new(int), new(int)}...) // ERROR "\[\]\*int{...} does not escape$" "new\(int\) does not escape$"
+
+	go f()
+	go f(new(int))           // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+	go f(new(int), new(int)) // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+
+	go f(nil...)
+	go f([]*int{}...)                   // ERROR "\[\]\*int{} escapes to heap$"
+	go f([]*int{new(int)}...)           // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+	go f([]*int{new(int), new(int)}...) // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+
+	for {
+		defer f()
+		defer f(new(int))           // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+		defer f(new(int), new(int)) // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+
+		defer f(nil...)
+		defer f([]*int{}...)                   // ERROR "\[\]\*int{} escapes to heap$"
+		defer f([]*int{new(int)}...)           // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+		defer f([]*int{new(int), new(int)}...) // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+
+		go f()
+		go f(new(int))           // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+		go f(new(int), new(int)) // ERROR "... argument escapes to heap$" "new\(int\) escapes to heap$"
+
+		go f(nil...)
+		go f([]*int{}...)                   // ERROR "\[\]\*int{} escapes to heap$"
+		go f([]*int{new(int)}...)           // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+		go f([]*int{new(int), new(int)}...) // ERROR "\[\]\*int{...} escapes to heap$" "new\(int\) escapes to heap$"
+	}
+}