Add basic block implementation.

Change-Id: I90874960be0afdacaeeb2ce3d3965e0c934d842a
diff --git a/src/compiler_llvm/method_compiler.h b/src/compiler_llvm/method_compiler.h
index 0edf322..532ad1a 100644
--- a/src/compiler_llvm/method_compiler.h
+++ b/src/compiler_llvm/method_compiler.h
@@ -80,6 +80,11 @@
   IRBuilder& irb_;
   llvm::Function* func_;
 
+  llvm::BasicBlock* prologue_;
+
+  std::vector<llvm::BasicBlock*> basic_blocks_;
+
+
  public:
   MethodCompiler(InstructionSet insn_set,
                  Compiler* compiler,
@@ -109,6 +114,15 @@
 
   llvm::FunctionType* GetFunctionType(uint32_t method_idx, bool is_static);
 
+
+  // Basic block helper functions
+  llvm::BasicBlock* GetBasicBlock(uint32_t dex_pc);
+
+  llvm::BasicBlock* GetNextBasicBlock(uint32_t dex_pc);
+
+  llvm::BasicBlock* CreateBasicBlockWithDexPC(uint32_t dex_pc,
+                                              char const* postfix = NULL);
+
 };