[XLA] Delete IsInplaceSlice.

PiperOrigin-RevId: 215681153

1 files changed, 0 insertions, 24 deletions

diff --git a/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc b/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
index 44cde4a3d2..c22adcdd8d 100644
--- a/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
+++ b/tensorflow/compiler/xla/service/hlo_dataflow_analysis.cc
@@ -356,23 +356,6 @@ bool HloDataflowAnalysis::UpdateBitcastValueSet(HloInstruction* bitcast) {
   return false;
 }
 
-bool HloDataflowAnalysis::UpdateSliceValueSet(HloInstruction* slice) {
-  CHECK_EQ(slice->opcode(), HloOpcode::kSlice);
-  if (!slice->IsInPlaceSlice()) {
-    return false;
-  }
-  // If this slice is lowered to an in-place version, then it forwards the
-  // operand value to the output.
-  const InstructionValueSet& operand_set =
-      GetInstructionValueSet(slice->operand(0));
-  InstructionValueSet& slice_set = GetInstructionValueSet(slice);
-  if (operand_set != slice_set) {
-    slice_set = operand_set;
-    return true;
-  }
-  return false;
-}
-
 bool HloDataflowAnalysis::UpdateSendValueSet(HloInstruction* send) {
   CHECK_EQ(send->opcode(), HloOpcode::kSend);
   bool changed = false;
@@ -641,8 +624,6 @@ bool HloDataflowAnalysis::UpdateInstructionValueSet(
   switch (instruction->opcode()) {
     case HloOpcode::kBitcast:
       return UpdateBitcastValueSet(instruction);
-    case HloOpcode::kSlice:
-      return UpdateSliceValueSet(instruction);
     case HloOpcode::kDomain:
       return UpdateDomainValueSet(instruction);
     case HloOpcode::kCopy:
@@ -814,11 +795,6 @@ Status HloDataflowAnalysis::InitializeInstructionValueSets() {
             define_all_values();
           }
           break;
-        case HloOpcode::kSlice:
-          if (!instruction->IsInPlaceSlice()) {
-            define_all_values();
-          }
-          break;
         case HloOpcode::kWhile:
         case HloOpcode::kCall:
         case HloOpcode::kConditional: