diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index b353cdb2cc..c8b16c2f96 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -790,6 +790,13 @@ void HInstruction::Verify() {
   // HValue::DataEquals.  The default implementation is UNREACHABLE.  We
   // don't actually care whether DataEquals returns true or false here.
   if (CheckFlag(kUseGVN)) DataEquals(this);
+
+  // Verify that all uses are in the graph.
+  for (HUseIterator use = uses(); !use.Done(); use.Advance()) {
+    if (use.value()->IsInstruction()) {
+      ASSERT(HInstruction::cast(use.value())->IsLinked());
+    }
+  }
 }
 #endif
 
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 3e53eca709..20e5b3bd00 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -1546,7 +1546,7 @@ class HStackCheck: public HTemplateInstruction<1> {
     // The stack check eliminator might try to eliminate the same stack
     // check instruction multiple times.
     if (IsLinked()) {
-      DeleteFromGraph();
+      DeleteAndReplaceWith(NULL);
     }
   }