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authorGravatar Mark Heffernan <meheff@google.com>2018-09-12 13:19:18 -0700
committerGravatar TensorFlower Gardener <gardener@tensorflow.org>2018-09-12 13:23:12 -0700
commit5d1de24583aabeb2cb883ab197ae2b8d5446c565 (patch)
tree8e1227ad724f3da4413ce51ef4d39925b7ff226a /tensorflow/compiler/xla/service/hlo_computation.cc
parent3fb474713b27552eba1943bb4172e54ad2dd13bc (diff)
Preserve unique ids when serializing/deserializing HLO protos.
Re-assigning unique IDs broke serialization of HloSchedule, and keeping IDs stable improves the fidelity of the proto serialization. This change requires that instructions in HLO module protos have valid, module-scope-unique ids so change the XLA builder to hand out module-scope-unique ids. Previously, instruction ids were only unique in the computation scope. PiperOrigin-RevId: 212692339
Diffstat (limited to 'tensorflow/compiler/xla/service/hlo_computation.cc')
-rw-r--r--tensorflow/compiler/xla/service/hlo_computation.cc8
1 files changed, 5 insertions, 3 deletions
diff --git a/tensorflow/compiler/xla/service/hlo_computation.cc b/tensorflow/compiler/xla/service/hlo_computation.cc
index 233d2199d1..8c6903d766 100644
--- a/tensorflow/compiler/xla/service/hlo_computation.cc
+++ b/tensorflow/compiler/xla/service/hlo_computation.cc
@@ -562,9 +562,11 @@ HloComputation::CreateFromProto(
return to_proto_id[a.get()] < to_proto_id[b.get()];
});
- return absl::WrapUnique(new HloComputation(proto.name(), parameter_count,
- &instructions, root,
- /*fusion_instruction=*/nullptr));
+ auto computation = absl::WrapUnique(
+ new HloComputation(proto.name(), parameter_count, &instructions, root,
+ /*fusion_instruction=*/nullptr));
+ computation->unique_id_ = proto.id();
+ return std::move(computation);
}
void HloComputation::FuseInstructionsInto(