From f0aa9e31de0fd37c062586ce37d9c4da491498ff Mon Sep 17 00:00:00 2001
From: Dmitry-Me <wipedout@yandex.ru>
Date: Wed, 12 Aug 2015 10:57:36 +0300
Subject: [PATCH] Cache and reuse value

---
 lib/valueflow.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/valueflow.cpp b/lib/valueflow.cpp
index 7eb6e3549..239bdc184 100644
--- a/lib/valueflow.cpp
+++ b/lib/valueflow.cpp
@@ -2032,11 +2032,11 @@ static void valueFlowSwitchVariable(TokenList *tokenlist, SymbolDatabase* symbol
         if (!Token::Match(scope->classDef, "switch ( %var% ) {"))
             continue;
         const Token *vartok = scope->classDef->tokAt(2);
-        if (!vartok->variable())
+        const Variable *var = vartok->variable();
+        if (!var)
             continue;
 
         // bailout: global non-const variables
-        const Variable *var = vartok->variable();
         if (!(var->isLocal() || var->isArgument()) && !var->isConst()) {
             if (settings->debugwarnings)
                 bailout(tokenlist, errorLogger, vartok, "switch variable " + var->name() + " is global");