Add shadow stack support to Dex compiler.

Change-Id: I8e188be3fb30c81e2a9e6e466264074ddf7b1624
diff --git a/src/compiler_llvm/ir_builder.h b/src/compiler_llvm/ir_builder.h
index e88073c..0762a0d 100644
--- a/src/compiler_llvm/ir_builder.h
+++ b/src/compiler_llvm/ir_builder.h
@@ -174,6 +174,8 @@
     return getJLongTy();
   }
 
+  llvm::StructType* getShadowFrameTy(uint32_t sirt_size);
+
 
   //--------------------------------------------------------------------------
   // Constant Value Helper Function
@@ -282,6 +284,8 @@
 
   llvm::PointerType* jenv_type_;
 
+  llvm::StructType* art_frame_type_;
+
   llvm::Function* runtime_support_func_decls_[runtime_support::MAX_ID];
 
 };