From c85a1058f6233cf8961de87e766102cfd9027ce3 Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Mon, 19 Dec 2022 15:00:24 +0100
Subject: [PATCH] Pull out the variable query.

---
 libyul/optimiser/UnusedAssignEliminator.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libyul/optimiser/UnusedAssignEliminator.cpp b/libyul/optimiser/UnusedAssignEliminator.cpp
index d165d2bd3..c5cbc26c1 100644
--- a/libyul/optimiser/UnusedAssignEliminator.cpp
+++ b/libyul/optimiser/UnusedAssignEliminator.cpp
@@ -134,13 +134,15 @@ void UnusedAssignEliminator::shortcutNestedLoop(ActiveStores const& _zeroRuns)
 	// they will be joined later anyway.
 
 	for (auto& [variable, stores]: m_activeStores)
+	{
+		auto zeroIt = _zeroRuns.find(variable);
 		for (auto& assignment: stores)
 		{
-			auto zeroIt = _zeroRuns.find(variable);
 			if (zeroIt != _zeroRuns.end() && zeroIt->second.count(assignment))
 				continue;
 			m_usedStores.insert(assignment);
 		}
+	}
 }
 
 void UnusedAssignEliminator::finalizeFunctionDefinition(FunctionDefinition const& _functionDefinition)