Split out HloDomainInstruction as subclass form HloInstruction.

PiperOrigin-RevId: 211916428

1 files changed, 39 insertions, 0 deletions

diff --git a/tensorflow/compiler/xla/service/hlo_instructions.cc b/tensorflow/compiler/xla/service/hlo_instructions.cc
index 4e3e0c055e..76712d73db 100644
--- a/tensorflow/compiler/xla/service/hlo_instructions.cc
+++ b/tensorflow/compiler/xla/service/hlo_instructions.cc
@@ -2224,4 +2224,43 @@ string HloDotInstruction::DotDimensionNumbersToString() const {
 
   return StrJoin(result, ", ");
 }
+
+HloDomainInstruction::HloDomainInstruction(
+    const Shape& shape, HloInstruction* operand,
+    std::unique_ptr<DomainMetadata> operand_side_metadata,
+    std::unique_ptr<DomainMetadata> user_side_metadata)
+    : HloInstruction(HloOpcode::kDomain, shape),
+      operand_side_metadata_(std::move(operand_side_metadata)),
+      user_side_metadata_(std::move(user_side_metadata)) {
+  AppendOperand(operand);
+}
+
+std::vector<string> HloDomainInstruction::ExtraAttributesToStringImpl(
+    const HloPrintOptions& options) const {
+  if (operand_side_metadata_ != nullptr && user_side_metadata_ != nullptr) {
+    return {StrCat("domain={kind=\"", operand_side_metadata_->Kind(),
+                   "\", entry=", user_side_metadata_->ToString(),
+                   ", exit=", operand_side_metadata_->ToString(), "}")};
+  }
+  return {};
+}
+
+bool HloDomainInstruction::IdenticalSlowPath(
+    const HloInstruction& other,
+    const std::function<bool(const HloComputation*, const HloComputation*)>&
+        eq_computations) const {
+  const auto& casted_other = static_cast<const HloDomainInstruction&>(other);
+  return operand_side_metadata().Matches(
+             casted_other.operand_side_metadata()) &&
+         user_side_metadata().Matches(casted_other.user_side_metadata());
+}
+
+std::unique_ptr<HloInstruction> HloDomainInstruction::CloneWithNewOperandsImpl(
+    const Shape& shape, absl::Span<HloInstruction* const> new_operands,
+    HloCloneContext* context) const {
+  CHECK_EQ(new_operands.size(), 1);
+  return absl::make_unique<HloDomainInstruction>(
+      shape, new_operands[0], operand_side_metadata_->Clone(),
+      user_side_metadata_->Clone());
+}
 }  // namespace xla