For the values defined in the loop and spilled outside sink spill store out of the loop down to loo…

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 98b05d147a290d67e10cbe57daae8bc2f73b02ea..687e4c6adad56a5cd697b27096725e8f3e5e4dca 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -118,6 +118,12 @@ class HBasicBlock: public ZoneObject {
 
   bool HasParentLoopHeader() const { return parent_loop_header_ != NULL; }
 
+  // Returns header of the innermost loop containing this block.
+  // Returns the block itself if it is a loop header.
+  HBasicBlock* LoopHeader() {
+    return IsLoopHeader() ? this : parent_loop_header();
+  }
+
   void SetJoinId(BailoutId ast_id);
 
   void Finish(HControlInstruction* last);
@@ -217,7 +223,8 @@ class HLoopInformation: public ZoneObject {
       : back_edges_(4, zone),
         loop_header_(loop_header),
         blocks_(8, zone),
-        stack_check_(NULL) {
+        stack_check_(NULL),
+        exit_block_(NULL) {
     blocks_.Add(loop_header, zone);
   }
   virtual ~HLoopInformation() {}
@@ -233,6 +240,9 @@ class HLoopInformation: public ZoneObject {
     stack_check_ = stack_check;
   }
 
+  HBasicBlock* exit_block() const { return exit_block_; }
+  void set_exit_block(HBasicBlock* block) { exit_block_ = block; }
+
  private:
   void AddBlock(HBasicBlock* block);
 
@@ -240,6 +250,7 @@ class HLoopInformation: public ZoneObject {
   HBasicBlock* loop_header_;
   ZoneList<HBasicBlock*> blocks_;
   HStackCheck* stack_check_;
+  HBasicBlock* exit_block_;
 };
 
 class BoundsCheckTable;