diff --git a/src/compiler/dex/portable/mir_to_gbc.cc b/src/compiler/dex/portable/mir_to_gbc.cc
index 4cae511..66efd64 100644
--- a/src/compiler/dex/portable/mir_to_gbc.cc
+++ b/src/compiler/dex/portable/mir_to_gbc.cc
@@ -816,6 +816,12 @@
   DefineValue(cu, res, rl_dest.orig_sreg);
 }
 
+static void EmitConstructorBarrier(CompilationUnit* cu) {
+  llvm::Function* intr = cu->intrinsic_helper->GetIntrinsicFunction(
+      compiler_llvm::IntrinsicHelper::ConstructorBarrier);
+  cu->irb->CreateCall(intr);
+}
+
 /*
  * Target-independent code generation.  Use only high-level
  * load/store utilities here, or target-dependent genXX() handlers
@@ -1025,6 +1031,12 @@
       break;
 
     case Instruction::RETURN_VOID: {
+        if (((cu->access_flags & kAccConstructor) != 0) &&
+            cu->compiler->RequiresConstructorBarrier(Thread::Current(),
+                                                     cu->dex_file,
+                                                     cu->class_def_idx)) {
+          EmitConstructorBarrier(cu);
+        }
         if (!(cu->attrs & METHOD_IS_LEAF)) {
           EmitSuspendCheck(cu);
         }
@@ -2892,6 +2904,11 @@
   }
 }
 
+static void CvtConstructorBarrier(CompilationUnit* cu) {
+  Codegen* cg = cu->cg.get();
+  cg->GenMemBarrier(cu, kStoreStore);
+}
+
 /* Look up the RegLocation associated with a Value.  Must already be defined */
 static RegLocation ValToLoc(CompilationUnit* cu, llvm::Value* val)
 {
@@ -3308,6 +3325,10 @@
                    next_bb = target_bb;
                 }
                 break;
+              case compiler_llvm::IntrinsicHelper::ConstructorBarrier: {
+                CvtConstructorBarrier(cu);
+                break;
+              }
 
               default:
                 LOG(FATAL) << "Unexpected intrinsic " << cu->intrinsic_helper->GetName(id);
diff --git a/src/compiler_llvm/gbc_expander.cc b/src/compiler_llvm/gbc_expander.cc
index 086d29d..4c9b31c 100644
--- a/src/compiler_llvm/gbc_expander.cc
+++ b/src/compiler_llvm/gbc_expander.cc
@@ -3588,6 +3588,12 @@
       return call_inst.getArgOperand(0);
     }
 
+    //==- Constructor barrier-----------------------------------------------==//
+    case IntrinsicHelper::ConstructorBarrier: {
+      irb_.CreateMemoryBarrier(art::kStoreStore);
+      return NULL;
+    }
+
     //==- Unknown Cases ----------------------------------------------------==//
     case IntrinsicHelper::MaxIntrinsicId:
     case IntrinsicHelper::UnknownId:
diff --git a/src/compiler_llvm/intrinsic_func_list.def b/src/compiler_llvm/intrinsic_func_list.def
index b3ea3f9..92537ba 100644
--- a/src/compiler_llvm/intrinsic_func_list.def
+++ b/src/compiler_llvm/intrinsic_func_list.def
@@ -1768,6 +1768,16 @@
                           kInt32Ty,
                           _EXPAND_ARG1(kInt32Ty))
 
+//----------------------------------------------------------------------------
+// Memory barrier
+//----------------------------------------------------------------------------
+// void constructor_barrier()
+_EVAL_DEF_INTRINSICS_FUNC(ConstructorBarrier,
+                          art_portable_constructor_barrier,
+                          kAttrReadOnly | kAttrNoThrow,
+                          kVoidTy,
+                          _EXPAND_ARG0())
+
 // Clean up all internal used macros
 #undef _EXPAND_ARG0
 #undef _EXPAND_ARG1
diff --git a/src/compiler_llvm/ir_builder.h b/src/compiler_llvm/ir_builder.h
index 85506e4..e722c68 100644
--- a/src/compiler_llvm/ir_builder.h
+++ b/src/compiler_llvm/ir_builder.h
@@ -18,6 +18,7 @@
 #define ART_SRC_COMPILER_LLVM_IR_BUILDER_H_
 
 #include "backend_types.h"
+#include "compiler/dex/compiler_enums.h"
 #include "intrinsic_helper.h"
 #include "md_builder.h"
 #include "runtime_support_builder.h"
@@ -94,6 +95,15 @@
     return inst;
   }
 
+  //--------------------------------------------------------------------------
+  // Extend memory barrier
+  //--------------------------------------------------------------------------
+  void CreateMemoryBarrier(MemBarrierKind barrier_kind) {
+#if ANDROID_SMP
+    // TODO: select atomic ordering according to given barrier kind.
+    CreateFence(llvm::SequentiallyConsistent);
+#endif
+  }
 
   //--------------------------------------------------------------------------
   // TBAA
diff --git a/src/compiler_llvm/runtime_support_llvm.cc b/src/compiler_llvm/runtime_support_llvm.cc
index ccda55c..ae8bb4a 100644
--- a/src/compiler_llvm/runtime_support_llvm.cc
+++ b/src/compiler_llvm/runtime_support_llvm.cc
@@ -897,4 +897,12 @@
   return 0;
 }
 
+//----------------------------------------------------------------------------
+// Memory barrier
+//----------------------------------------------------------------------------
+
+void art_portable_constructor_barrier() {
+  LOG(FATAL) << "Implemented by IRBuilder.";
+}
+
 }  // extern "C"