Version 1.5.0-dev.4.5

dart/runtime/vm/flow_graph.cc

Index: dart/runtime/vm/flow_graph.cc
===================================================================
--- dart/runtime/vm/flow_graph.cc	(revision 37111)
+++ dart/runtime/vm/flow_graph.cc	(working copy)
@@ -42,7 +42,8 @@
     use_far_branches_(false),
     loop_headers_(NULL),
     loop_invariant_loads_(NULL),
-    guarded_fields_(builder.guarded_fields()) {
+    guarded_fields_(builder.guarded_fields()),
+    deferred_prefixes_(builder.deferred_prefixes()) {
   DiscoverBlocks();
 }
 
@@ -63,6 +64,21 @@
 }
 
 
+void FlowGraph::AddToDeferredPrefixes(
+    ZoneGrowableArray<const LibraryPrefix*>* from) {
+  ZoneGrowableArray<const LibraryPrefix*>* to = deferred_prefixes();
+  for (intptr_t i = 0; i < from->length(); i++) {
+    const  LibraryPrefix* prefix = (*from)[i];
+    for (intptr_t j = 0; j < to->length(); j++) {
+      if ((*to)[j]->raw() == prefix->raw()) {
+        return;
+      }
+    }
+    to->Add(prefix);
+  }
+}
+
+
 bool FlowGraph::ShouldReorderBlocks(const Function& function,
                                     bool is_optimized) {
   return is_optimized && FLAG_reorder_basic_blocks && !function.is_intrinsic();