Initial commit of llgo third_party.

llvm-svn: 222858
diff --git a/llgo/third_party/gofrontend/libgo/runtime/go-alloc.h b/llgo/third_party/gofrontend/libgo/runtime/go-alloc.h
new file mode 100644
index 0000000..c880a04
--- /dev/null
+++ b/llgo/third_party/gofrontend/libgo/runtime/go-alloc.h
@@ -0,0 +1,11 @@
+/* go-alloc.h -- allocate memory for Go.
+
+   Copyright 2009 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.  */
+
+#include <stddef.h>
+#include <stdint.h>
+
+extern void *__go_alloc (unsigned int __attribute__ ((mode (pointer))));
+extern void __go_free (void *);