upload android base code part3

android/art/compiler/optimizing/locations.cc

@@ -0,0 +1,104 @@
+  /*
+ * Copyright (C) 2014 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 "locations.h"
+
+#include <type_traits>
+
+#include "nodes.h"
+#include "code_generator.h"
+
+namespace art {
+
+// Verify that Location is trivially copyable.
+static_assert(std::is_trivially_copyable<Location>::value, "Location should be trivially copyable");
+
+LocationSummary::LocationSummary(HInstruction* instruction,
+                                 CallKind call_kind,
+                                 bool intrinsified)
+    : inputs_(instruction->InputCount(),
+              instruction->GetBlock()->GetGraph()->GetArena()->Adapter(kArenaAllocLocationSummary)),
+      temps_(instruction->GetBlock()->GetGraph()->GetArena()->Adapter(kArenaAllocLocationSummary)),
+      call_kind_(call_kind),
+      intrinsified_(intrinsified),
+      has_custom_slow_path_calling_convention_(false),
+      output_overlaps_(Location::kOutputOverlap),
+      stack_mask_(nullptr),
+      register_mask_(0),
+      live_registers_(RegisterSet::Empty()),
+      custom_slow_path_caller_saves_(RegisterSet::Empty()) {
+  instruction->SetLocations(this);
+
+  if (NeedsSafepoint()) {
+    ArenaAllocator* arena = instruction->GetBlock()->GetGraph()->GetArena();
+    stack_mask_ = ArenaBitVector::Create(arena, 0, true, kArenaAllocLocationSummary);
+  }
+}
+
+
+Location Location::RegisterOrConstant(HInstruction* instruction) {
+  return instruction->IsConstant()
+      ? Location::ConstantLocation(instruction->AsConstant())
+      : Location::RequiresRegister();
+}
+
+Location Location::RegisterOrInt32Constant(HInstruction* instruction) {
+  HConstant* constant = instruction->AsConstant();
+  if (constant != nullptr) {
+    int64_t value = CodeGenerator::GetInt64ValueOf(constant);
+    if (IsInt<32>(value)) {
+      return Location::ConstantLocation(constant);
+    }
+  }
+  return Location::RequiresRegister();
+}
+
+Location Location::FpuRegisterOrInt32Constant(HInstruction* instruction) {
+  HConstant* constant = instruction->AsConstant();
+  if (constant != nullptr) {
+    int64_t value = CodeGenerator::GetInt64ValueOf(constant);
+    if (IsInt<32>(value)) {
+      return Location::ConstantLocation(constant);
+    }
+  }
+  return Location::RequiresFpuRegister();
+}
+
+Location Location::ByteRegisterOrConstant(int reg, HInstruction* instruction) {
+  return instruction->IsConstant()
+      ? Location::ConstantLocation(instruction->AsConstant())
+      : Location::RegisterLocation(reg);
+}
+
+Location Location::FpuRegisterOrConstant(HInstruction* instruction) {
+  return instruction->IsConstant()
+      ? Location::ConstantLocation(instruction->AsConstant())
+      : Location::RequiresFpuRegister();
+}
+
+std::ostream& operator<<(std::ostream& os, const Location& location) {
+  os << location.DebugString();
+  if (location.IsRegister() || location.IsFpuRegister()) {
+    os << location.reg();
+  } else if (location.IsPair()) {
+    os << location.low() << ":" << location.high();
+  } else if (location.IsStackSlot() || location.IsDoubleStackSlot()) {
+    os << location.GetStackIndex();
+  }
+  return os;
+}
+
+}  // namespace art