diff --git a/compiler/compiler.h b/compiler/compiler.h
index 4caebf3..05fa858 100644
--- a/compiler/compiler.h
+++ b/compiler/compiler.h
@@ -26,13 +26,19 @@
 struct CompilationUnit;
 class CompilerDriver;
 class CompiledMethod;
-class MIRGraph;
 class OatWriter;
 
 namespace mirror {
   class ArtMethod;
 }
 
+// Base class for compiler-specific thread-local storage for compiler worker threads
+class CompilerTls {
+  public:
+    CompilerTls() {}
+    ~CompilerTls() {}
+};
+
 class Compiler {
  public:
   enum Kind {
@@ -47,6 +53,9 @@
 
   virtual void UnInit() const = 0;
 
+  virtual bool CanCompileMethod(uint32_t method_idx, const DexFile& dex_file, CompilationUnit* cu)
+      const = 0;
+
   virtual CompiledMethod* Compile(const DexFile::CodeItem* code_item,
                                   uint32_t access_flags,
                                   InvokeType invoke_type,
@@ -109,6 +118,10 @@
     return nullptr;
   }
 
+  virtual CompilerTls* CreateNewCompilerTls() {
+    return nullptr;
+  }
+
  protected:
   explicit Compiler(CompilerDriver* driver, uint64_t warning) :
       driver_(driver), maximum_compilation_time_before_warning_(warning) {