From c91cfecded23f3725dee12a6de1ae79bd2b6156c Mon Sep 17 00:00:00 2001
From: Jan Christoph Uhde <ObiWahn@users.noreply.github.com>
Date: Thu, 21 Dec 2017 20:15:03 +0100
Subject: [PATCH] remove superfluous decrease memory usage (#4132)

---
 arangod/Aql/AqlItemBlock.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arangod/Aql/AqlItemBlock.h b/arangod/Aql/AqlItemBlock.h
index bff6d6a55b..5028867f18 100644
--- a/arangod/Aql/AqlItemBlock.h
+++ b/arangod/Aql/AqlItemBlock.h
@@ -109,7 +109,7 @@ class AqlItemBlock {
     if (value.requiresDestruction()) {
       if (++_valueCount[value] == 1) {
         mem = value.memoryUsage();
-        increaseMemoryUsage(value.memoryUsage());
+        increaseMemoryUsage(mem);
       }
     }
 
@@ -120,7 +120,7 @@ class AqlItemBlock {
       throw;
     }
   }
-  
+
   /// @brief emplaceValue, set the current value of a register, constructing
   /// it in place
   template <typename... Args>
@@ -152,7 +152,6 @@ class AqlItemBlock {
       // invoke dtor
       value->~AqlValue();
 
-      decreaseMemoryUsage(mem);
       _data[index * _nrRegs + varNr].destroy();
       throw;
     }