diff --git a/compiler/compiler.h b/compiler/compiler.h
new file mode 100644
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--- /dev/null
+++ b/compiler/compiler.h
@@ -0,0 +1,127 @@
+/*
+ * 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_COMPILER_H_
+#define ART_COMPILER_COMPILER_H_
+
+#include "dex_file.h"
+#include "os.h"
+
+namespace art {
+
+class Backend;
+struct CompilationUnit;
+class CompilerDriver;
+class CompiledMethod;
+class MIRGraph;
+class OatWriter;
+
+namespace mirror {
+  class ArtMethod;
+}
+
+class Compiler {
+ public:
+  enum Kind {
+    kQuick,
+    kOptimizing,
+    kPortable
+  };
+
+  explicit Compiler(uint64_t warning)
+      : maximum_compilation_time_before_warning_(warning) {
+  }
+
+  static Compiler* Create(Kind kind);
+
+  virtual void Init(CompilerDriver& driver) const = 0;
+
+  virtual void UnInit(CompilerDriver& driver) const = 0;
+
+  virtual 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 = 0;
+
+  static CompiledMethod* TryCompileWithSeaIR(art::CompilerDriver& driver,
+                                             const art::DexFile::CodeItem* code_item,
+                                             uint32_t access_flags,
+                                             art::InvokeType invoke_type,
+                                             uint16_t class_def_idx,
+                                             uint32_t method_idx,
+                                             jobject class_loader,
+                                             const art::DexFile& dex_file);
+
+  virtual CompiledMethod* JniCompile(CompilerDriver& driver,
+                                     uint32_t access_flags,
+                                     uint32_t method_idx,
+                                     const DexFile& dex_file) const = 0;
+
+  virtual uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const = 0;
+
+  virtual 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
+    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) = 0;
+
+  virtual Backend* GetCodeGenerator(CompilationUnit* cu,
+                                    void* compilation_unit) const = 0;
+
+  uint64_t GetMaximumCompilationTimeBeforeWarning() const {
+    return maximum_compilation_time_before_warning_;
+  }
+
+  virtual bool IsPortable() const {
+    return false;
+  }
+
+  void SetBitcodeFileName(const CompilerDriver& driver, const std::string& filename) {
+    UNUSED(driver);
+    UNUSED(filename);
+  }
+
+  virtual void InitCompilationUnit(CompilationUnit& cu) const = 0;
+
+  virtual ~Compiler() {}
+
+  /*
+   * @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.
+   */
+  virtual std::vector<uint8_t>* GetCallFrameInformationInitialization(const CompilerDriver& driver)
+      const {
+    return nullptr;
+  }
+
+ private:
+  const uint64_t maximum_compilation_time_before_warning_;
+
+  DISALLOW_COPY_AND_ASSIGN(Compiler);
+};
+
+}  // namespace art
+
+#endif  // ART_COMPILER_COMPILER_H_