1 files changed, 40 insertions, 0 deletions
diff --git a/test/live_syscall.go b/test/live_syscall.go
new file mode 100644
index 0000000..b920ff6
--- /dev/null
+++ b/test/live_syscall.go
@@ -0,0 +1,40 @@
+// errorcheck -0 -m -live
+
+// +build !windows,!js
+
+// Copyright 2015 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.
+
+// Test escape analysis and liveness inferred for syscall.Syscall-like functions.
+
+package p
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func f(uintptr) // ERROR "assuming arg#1 is unsafe uintptr"
+
+func g() { // ERROR "can inline g"
+	var t int
+	f(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to f: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
+}
+
+func h() { // ERROR "can inline h"
+	var v int
+	syscall.Syscall(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to Syscall: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
+}
+
+func i() { // ERROR "can inline i"
+	var t int
+	p := unsafe.Pointer(&t)
+	f(uintptr(p))           // ERROR "live at call to f: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
+}
+
+func j() { // ERROR "can inline j"
+	var v int
+	p := unsafe.Pointer(&v)
+	syscall.Syscall(0, 1, uintptr(p), 2) // ERROR "live at call to Syscall: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
+}