diff --git a/compiler/compilers.h b/compiler/compilers.h
new file mode 100644
index 0000000..65c8428
--- /dev/null
+++ b/compiler/compilers.h
@@ -0,0 +1,103 @@
+/*
+ * 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.
+ */
+
+#ifndef ART_COMPILER_COMPILERS_H_
+#define ART_COMPILER_COMPILERS_H_
+
+#include "compiler.h"
+
+namespace art {
+
+class QuickCompiler : public Compiler {
+ public:
+  QuickCompiler() : Compiler(100) {}
+
+  void Init(CompilerDriver& driver) const;
+
+  void UnInit(CompilerDriver& driver) const;
+
+  CompiledMethod* Compile(CompilerDriver& driver,
+                          const DexFile::CodeItem* code_item,
+                          uint32_t access_flags,
+                          InvokeType invoke_type,
+                          uint16_t class_def_idx,
+                          uint32_t method_idx,
+                          jobject class_loader,
+                          const DexFile& dex_file) const;
+
+  CompiledMethod* JniCompile(CompilerDriver& driver,
+                             uint32_t access_flags,
+                             uint32_t method_idx,
+                             const DexFile& dex_file) const;
+
+  uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const;
+
+  bool WriteElf(art::File* file,
+                OatWriter* oat_writer,
+                const std::vector<const art::DexFile*>& dex_files,
+                const std::string& android_root,
+                bool is_host, const CompilerDriver& driver) const
+    OVERRIDE
+    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+
+  Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const;
+
+  void InitCompilationUnit(CompilationUnit& cu) const {}
+
+  /*
+   * @brief Generate and return Dwarf CFI initialization, if supported by the
+   * backend.
+   * @param driver CompilerDriver for this compile.
+   * @returns nullptr if not supported by backend or a vector of bytes for CFI DWARF
+   * information.
+   * @note This is used for backtrace information in generated code.
+   */
+  std::vector<uint8_t>* GetCallFrameInformationInitialization(const CompilerDriver& driver) const
+      OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(QuickCompiler);
+};
+
+class OptimizingCompiler : public QuickCompiler {
+ public:
+  OptimizingCompiler() { }
+
+  CompiledMethod* Compile(CompilerDriver& driver,
+                          const DexFile::CodeItem* code_item,
+                          uint32_t access_flags,
+                          InvokeType invoke_type,
+                          uint16_t class_def_idx,
+                          uint32_t method_idx,
+                          jobject class_loader,
+                          const DexFile& dex_file) const;
+
+  CompiledMethod* TryCompile(CompilerDriver& driver,
+                             const DexFile::CodeItem* code_item,
+                             uint32_t access_flags,
+                             InvokeType invoke_type,
+                             uint16_t class_def_idx,
+                             uint32_t method_idx,
+                             jobject class_loader,
+                             const DexFile& dex_file) const;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OptimizingCompiler);
+};
+
+}  // namespace art
+
+#endif  // ART_COMPILER_COMPILERS_H_