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diff --git a/tensorflow/stream_executor/lib/path.h b/tensorflow/stream_executor/lib/path.h
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+++ b/tensorflow/stream_executor/lib/path.h
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+#ifndef TENSORFLOW_STREAM_EXECUTOR_LIB_PATH_H_
+#define TENSORFLOW_STREAM_EXECUTOR_LIB_PATH_H_
+
+#include "tensorflow/stream_executor/lib/stringpiece.h"
+#include "tensorflow/stream_executor/platform/port.h"
+
+namespace perftools {
+namespace gputools {
+namespace port {
+
+namespace internal {
+// TODO(rspringer): Move to cc/implementation file.
+// Not part of the public API.
+string JoinPathImpl(std::initializer_list<port::StringPiece> paths);
+}  // namespace internal
+
+// Join multiple paths together.
+// JoinPath unconditionally joins all paths together. For example:
+//
+//  Arguments                  | JoinPath
+//  ---------------------------+---------------------
+//  '/foo', 'bar'              | /foo/bar
+//  '/foo/', 'bar'             | /foo/bar
+//  '/foo', '/bar'             | /foo/bar
+//  '/foo', '/bar', '/baz'     | /foo/bar/baz
+//
+// All paths will be treated as relative paths, regardless of whether or not
+// they start with a leading '/'.  That is, all paths will be concatenated
+// together, with the appropriate path separator inserted in between.
+// Arguments must be convertible to port::StringPiece.
+//
+// Usage:
+// string path = file::JoinPath("/var/log", dirname, filename);
+// string path = file::JoinPath(FLAGS_test_srcdir, filename);
+template <typename... T>
+inline string JoinPath(const T&... args) {
+  return internal::JoinPathImpl({args...});
+}
+
+}  // namespace port
+}  // namespace gputools
+}  // namespace perftools
+
+#endif  // TENSORFLOW_STREAM_EXECUTOR_LIB_PATH_H_