1 files changed, 0 insertions, 141 deletions
diff --git a/compiler/optimizing/instruction_simplifier_mips.cc b/compiler/optimizing/instruction_simplifier_mips.cc
deleted file mode 100644
index 5d0c63b76b..0000000000
--- a/compiler/optimizing/instruction_simplifier_mips.cc
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "instruction_simplifier_mips.h"
-
-#include "arch/mips/instruction_set_features_mips.h"
-#include "mirror/array-inl.h"
-
-namespace art {
-namespace mips {
-
-class InstructionSimplifierMipsVisitor : public HGraphVisitor {
- public:
-  InstructionSimplifierMipsVisitor(HGraph* graph,
-                                   CodeGenerator* codegen,
-                                   OptimizingCompilerStats* stats)
-      : HGraphVisitor(graph),
-        stats_(stats),
-        codegen_(down_cast<CodeGeneratorMIPS*>(codegen)) {}
-
- private:
-  void RecordSimplification() {
-    MaybeRecordStat(stats_, MethodCompilationStat::kInstructionSimplificationsArch);
-  }
-
-  bool TryExtractArrayAccessIndex(HInstruction* access,
-                                  HInstruction* index,
-                                  DataType::Type packed_type);
-  void VisitArrayGet(HArrayGet* instruction) override;
-  void VisitArraySet(HArraySet* instruction) override;
-
-  OptimizingCompilerStats* stats_;
-  CodeGeneratorMIPS* codegen_;
-};
-
-bool InstructionSimplifierMipsVisitor::TryExtractArrayAccessIndex(HInstruction* access,
-                                                                  HInstruction* index,
-                                                                  DataType::Type packed_type) {
-  if (codegen_->GetInstructionSetFeatures().IsR6() ||
-      codegen_->GetInstructionSetFeatures().HasMsa()) {
-    return false;
-  }
-  if (index->IsConstant() ||
-      (index->IsBoundsCheck() && index->AsBoundsCheck()->GetIndex()->IsConstant())) {
-    // If index is constant the whole address calculation often can be done by load/store
-    // instructions themselves.
-    // TODO: Treat the case with non-embeddable constants.
-    return false;
-  }
-
-  if (packed_type != DataType::Type::kInt16 && packed_type != DataType::Type::kUint16 &&
-      packed_type != DataType::Type::kInt32 && packed_type != DataType::Type::kInt64 &&
-      packed_type != DataType::Type::kFloat32 && packed_type != DataType::Type::kFloat64) {
-    return false;
-  }
-
-  if (access->IsArrayGet() && access->AsArrayGet()->IsStringCharAt()) {
-    return false;
-  }
-
-  HGraph* graph = access->GetBlock()->GetGraph();
-  ArenaAllocator* allocator = graph->GetAllocator();
-  size_t component_shift = DataType::SizeShift(packed_type);
-
-  bool is_extracting_beneficial = false;
-  // It is beneficial to extract index intermediate address only if there are at least 2 users.
-  for (const HUseListNode<HInstruction*>& use : index->GetUses()) {
-    HInstruction* user = use.GetUser();
-    if (user->IsArrayGet() && user != access && !user->AsArrayGet()->IsStringCharAt()) {
-      HArrayGet* another_access = user->AsArrayGet();
-      DataType::Type another_packed_type = another_access->GetType();
-      size_t another_component_shift = DataType::SizeShift(another_packed_type);
-      if (another_component_shift == component_shift) {
-        is_extracting_beneficial = true;
-        break;
-      }
-    } else if (user->IsArraySet() && user != access) {
-      HArraySet* another_access = user->AsArraySet();
-      DataType::Type another_packed_type = another_access->GetType();
-      size_t another_component_shift = DataType::SizeShift(another_packed_type);
-      if (another_component_shift == component_shift) {
-        is_extracting_beneficial = true;
-        break;
-      }
-    } else if (user->IsIntermediateArrayAddressIndex()) {
-      HIntermediateArrayAddressIndex* another_access = user->AsIntermediateArrayAddressIndex();
-      size_t another_component_shift = another_access->GetShift()->AsIntConstant()->GetValue();
-      if (another_component_shift == component_shift) {
-        is_extracting_beneficial = true;
-        break;
-      }
-    }
-  }
-
-  if (!is_extracting_beneficial) {
-    return false;
-  }
-
-  HIntConstant* shift = graph->GetIntConstant(component_shift);
-  HIntermediateArrayAddressIndex* address =
-      new (allocator) HIntermediateArrayAddressIndex(index, shift, kNoDexPc);
-  access->GetBlock()->InsertInstructionBefore(address, access);
-  access->ReplaceInput(address, 1);
-  return true;
-}
-
-void InstructionSimplifierMipsVisitor::VisitArrayGet(HArrayGet* instruction) {
-  DataType::Type packed_type = instruction->GetType();
-  if (TryExtractArrayAccessIndex(instruction, instruction->GetIndex(), packed_type)) {
-    RecordSimplification();
-  }
-}
-
-void InstructionSimplifierMipsVisitor::VisitArraySet(HArraySet* instruction) {
-  DataType::Type packed_type = instruction->GetComponentType();
-  if (TryExtractArrayAccessIndex(instruction, instruction->GetIndex(), packed_type)) {
-    RecordSimplification();
-  }
-}
-
-bool InstructionSimplifierMips::Run() {
-  InstructionSimplifierMipsVisitor visitor(graph_, codegen_, stats_);
-  visitor.VisitReversePostOrder();
-  return true;
-}
-
-}  // namespace mips
-}  // namespace art