1 files changed, 0 insertions, 65 deletions

diff --git a/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc b/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
index ff80f18bb5..92261bce62 100644
--- a/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
+++ b/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
@@ -242,51 +242,6 @@ bool HloDataflowAnalysis::UpdateBitcastValueSet(HloInstruction* bitcast) {
   return false;
 }
 
-bool HloDataflowAnalysis::UpdateSendValueSet(HloInstruction* send) {
-  CHECK_EQ(send->opcode(), HloOpcode::kSend);
-  bool changed = false;
-  // Send forwards the operand value to the output tuple at {0}.
-  for (auto& pair : GetInstructionValueSet(send->operand(0))) {
-    const ShapeIndex& operand_index = pair.first;
-    const HloValueSet& operand_value_set = pair.second;
-
-    ShapeIndex index = {0};
-    for (int64 i : operand_index) {
-      index.push_back(i);
-    }
-
-    HloValueSet& value_set = GetValueSet(send, index);
-    if (value_set != operand_value_set) {
-      value_set = operand_value_set;
-      changed = true;
-    }
-  }
-  return changed;
-}
-
-bool HloDataflowAnalysis::UpdateRecvDoneValueSet(HloInstruction* recv_done) {
-  CHECK_EQ(recv_done->opcode(), HloOpcode::kRecvDone);
-  bool changed = false;
-  // RecvDone forwards the operand value at {0} to the output.
-  for (auto& pair : GetInstructionValueSet(recv_done)) {
-    ShapeIndex& index = pair.first;
-    HloValueSet& value_set = pair.second;
-
-    ShapeIndex operand_index = {0};
-    for (int64 i : index) {
-      operand_index.push_back(i);
-    }
-
-    const HloValueSet& operand_value_set =
-        GetValueSet(recv_done->operand(0), operand_index);
-    if (value_set != operand_value_set) {
-      value_set = operand_value_set;
-      changed = true;
-    }
-  }
-  return changed;
-}
-
 bool HloDataflowAnalysis::UpdateCallValueSet(HloInstruction* call) {
   CHECK_EQ(call->opcode(), HloOpcode::kCall);
   InstructionValueSet& value_set = GetInstructionValueSet(call);
@@ -474,10 +429,6 @@ bool HloDataflowAnalysis::UpdateInstructionValueSet(
       return UpdateCallValueSet(instruction);
     case HloOpcode::kWhile:
       return UpdateWhileValueSet(instruction);
-    case HloOpcode::kSend:
-      return UpdateSendValueSet(instruction);
-    case HloOpcode::kRecvDone:
-      return UpdateRecvDoneValueSet(instruction);
     default:
       // Instruction does not forward HloValues (it defines all values in its
       // output). No update is necessary.
@@ -586,12 +537,6 @@ Status HloDataflowAnalysis::InitializeInstructionValueSets() {
         GetValueSet(instruction, /*index=*/{}).AddValue(value);
       };
 
-      // Lambda to set the value set at the given index of the output.
-      auto define_value_at = [this, &instruction](const ShapeIndex& index) {
-        HloValue* value = NewHloValue(instruction, index, /*is_phi=*/false);
-        GetValueSet(instruction, index).AddValue(value);
-      };
-
       switch (instruction->opcode()) {
         case HloOpcode::kBitcast:
           if (bitcast_defines_value_) {
@@ -632,16 +577,6 @@ Status HloDataflowAnalysis::InitializeInstructionValueSets() {
           // values flow from their operands.
           define_top_level_only();
           break;
-        case HloOpcode::kRecvDone:
-          // RecvDone aliases its input tuple element {0}, therefore does not
-          // define any values.
-          break;
-        case HloOpcode::kSend:
-          // Send produces a tuple of {aliased operand, U32 context}, therefore
-          // only defines the top-level tuple and the tuple element at {1}.
-          define_value_at(/*index=*/{});
-          define_value_at(/*index=*/{1});
-          break;
         default:
           define_all_values();
           break;