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diff --git a/compiler/optimizing/intrinsics_x86.h b/compiler/optimizing/intrinsics_x86.h
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+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef ART_COMPILER_OPTIMIZING_INTRINSICS_X86_H_
+#define ART_COMPILER_OPTIMIZING_INTRINSICS_X86_H_
+
+#include "intrinsics.h"
+
+namespace art {
+
+class ArenaAllocator;
+class HInvokeStaticOrDirect;
+class HInvokeVirtual;
+
+namespace x86 {
+
+class CodeGeneratorX86;
+class X86Assembler;
+
+class IntrinsicLocationsBuilderX86 FINAL : public IntrinsicVisitor {
+ public:
+  explicit IntrinsicLocationsBuilderX86(ArenaAllocator* arena) : arena_(arena) {}
+
+  // Define visitor methods.
+
+#define OPTIMIZING_INTRINSICS(Name, IsStatic)   \
+  void Visit ## Name(HInvoke* invoke) OVERRIDE;
+#include "intrinsics_list.h"
+INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
+#undef INTRINSICS_LIST
+#undef OPTIMIZING_INTRINSICS
+
+  // Check whether an invoke is an intrinsic, and if so, create a location summary. Returns whether
+  // a corresponding LocationSummary with the intrinsified_ flag set was generated and attached to
+  // the invoke.
+  bool TryDispatch(HInvoke* invoke);
+
+ private:
+  ArenaAllocator* arena_;
+
+  DISALLOW_COPY_AND_ASSIGN(IntrinsicLocationsBuilderX86);
+};
+
+class IntrinsicCodeGeneratorX86 FINAL : public IntrinsicVisitor {
+ public:
+  explicit IntrinsicCodeGeneratorX86(CodeGeneratorX86* codegen) : codegen_(codegen) {}
+
+  // Define visitor methods.
+
+#define OPTIMIZING_INTRINSICS(Name, IsStatic)   \
+  void Visit ## Name(HInvoke* invoke) OVERRIDE;
+#include "intrinsics_list.h"
+INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
+#undef INTRINSICS_LIST
+#undef OPTIMIZING_INTRINSICS
+
+ private:
+  X86Assembler* GetAssembler();
+
+  ArenaAllocator* GetAllocator();
+
+  CodeGeneratorX86* codegen_;
+
+  DISALLOW_COPY_AND_ASSIGN(IntrinsicCodeGeneratorX86);
+};
+
+}  // namespace x86
+}  // namespace art
+
+#endif  // ART_COMPILER_OPTIMIZING_INTRINSICS_X86_H_