Add debug protos that serialize HLO graph information.

Also add flags to dump this data in JSON format, for each backend.
This is useful for upcoming debugging tools.

PiperOrigin-RevId: 157178357

1 files changed, 36 insertions, 0 deletions

diff --git a/tensorflow/compiler/xla/service/hlo_proto_util.h b/tensorflow/compiler/xla/service/hlo_proto_util.h
new file mode 100644
index 0000000000..603259a11f
--- /dev/null
+++ b/tensorflow/compiler/xla/service/hlo_proto_util.h
@@ -0,0 +1,36 @@
+/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+// Utilities to manipulate data in hlo.proto.
+
+#ifndef TENSORFLOW_COMPILER_XLA_SERVICE_HLO_PROTO_UTIL_H_
+#define TENSORFLOW_COMPILER_XLA_SERVICE_HLO_PROTO_UTIL_H_
+
+#include <string>
+
+#include "tensorflow/compiler/xla/service/buffer_assignment.h"
+#include "tensorflow/compiler/xla/service/hlo.pb.h"
+#include "tensorflow/compiler/xla/service/hlo_module.h"
+#include "tensorflow/compiler/xla/status.h"
+
+namespace xla {
+
+// Returns a serialized representation of the HLO state.
+HloProto MakeHloProto(const HloModule& module,
+                      const BufferAssignment& assignment);
+
+}  // namespace xla
+
+#endif  // TENSORFLOW_COMPILER_XLA_SERVICE_HLO_PROTO_UTIL_H_