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+// Copyright 2017 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.
+
+// Declarations for operating systems implementing time.now directly in assembly.
+// Those systems are also expected to have nanotime subtract startNano,
+// so that time.now and nanotime return the same monotonic clock readings.
+
+// +build ignore
+// +build darwin,amd64 darwin,386 windows
+
+package runtime
+
+import _ "unsafe"
+
+//go:linkname time_now time.now
+func time_now() (sec int64, nsec int32, mono int64)