protected void lowerStoreFieldNode(StoreFieldNode storeField, LoweringTool tool) { StructuredGraph graph = storeField.graph(); ResolvedJavaField field = storeField.field(); ValueNode object = storeField.isStatic() ? staticFieldBase(graph, field) : storeField.object(); object = createNullCheckedValue(object, storeField, tool); ValueNode value = implicitStoreConvert(graph, getStorageKind(storeField.field()), storeField.value()); AddressNode address = createFieldAddress(graph, object, field); assert address != null; WriteNode memoryWrite = graph.add(new WriteNode(address, fieldLocationIdentity(field), value, fieldStoreBarrierType(storeField.field()))); memoryWrite.setStateAfter(storeField.stateAfter()); graph.replaceFixedWithFixed(storeField, memoryWrite); if (storeField.isVolatile()) { MembarNode preMembar = graph.add(new MembarNode(JMM_PRE_VOLATILE_WRITE)); graph.addBeforeFixed(memoryWrite, preMembar); MembarNode postMembar = graph.add(new MembarNode(JMM_POST_VOLATILE_WRITE)); graph.addAfterFixed(memoryWrite, postMembar); } }