From b2b2424f09e4540afe0a6086c8c833303bbed39e Mon Sep 17 00:00:00 2001
From: Anthony Barbier <anthonyb@graphcore.ai>
Date: Mon, 19 Aug 2019 11:05:11 +0100
Subject: [PATCH] Sort map before serializing it

---
 tensorflow/compiler/xla/service/hlo_instruction.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tensorflow/compiler/xla/service/hlo_instruction.cc b/tensorflow/compiler/xla/service/hlo_instruction.cc
index e946e56c82c..1ba87a6da6a 100644
--- a/tensorflow/compiler/xla/service/hlo_instruction.cc
+++ b/tensorflow/compiler/xla/service/hlo_instruction.cc
@@ -3206,8 +3206,11 @@ StatusOr<HloInstruction::FusionKind> StringToFusionKind(
 
 string FrontendAttributesToString(
     const FrontendAttributes& frontend_attributes) {
-  return absl::StrFormat("{%s}", absl::StrJoin(frontend_attributes.map(), ",",
-                                               absl::PairFormatter("=")));
+  std::vector<std::pair<string, string>> sorted_attributes(
+      frontend_attributes.map().begin(), frontend_attributes.map().end());
+  std::sort(sorted_attributes.begin(), sorted_attributes.end());
+  return absl::StrFormat(
+      "{%s}", absl::StrJoin(sorted_attributes, ",", absl::PairFormatter("=")));
 }
 
 string PaddingConfigToString(const PaddingConfig& padding) {