diff --git a/libsolidity/codegen/ir/IRGenerator.cpp b/libsolidity/codegen/ir/IRGenerator.cpp
index c2bb0c3cf..dbd6f445e 100644
--- a/libsolidity/codegen/ir/IRGenerator.cpp
+++ b/libsolidity/codegen/ir/IRGenerator.cpp
@@ -1069,6 +1069,7 @@ string IRGenerator::dispatchRoutine(ContractDefinition const& _contract)
 
 string IRGenerator::memoryInit(bool _useMemoryGuard)
 {
+	_useMemoryGuard = true;
 	// This function should be called at the beginning of the EVM call frame
 	// and thus can assume all memory to be zero, including the contents of
 	// the "zero memory area" (the position CompilerUtils::zeroPointer points to).
diff --git a/test/externalTests/ens.sh b/test/externalTests/ens.sh
index d3fcb0b13..2e7eec183 100755
--- a/test/externalTests/ens.sh
+++ b/test/externalTests/ens.sh
@@ -46,7 +46,7 @@ function ens_test
         "${compile_only_presets[@]}"
         #ir-no-optimize           # Compilation fails with "YulException: Variable var__945 is 1 slot(s) too deep inside the stack."
         #ir-optimize-evm-only     # Compilation fails with "YulException: Variable var__945 is 1 slot(s) too deep inside the stack."
-        #ir-optimize-evm+yul      # Compilation fails with "YulException: Variable _5 is 1 too deep in the stack [ _5 usr$i usr$h _7 usr$scratch usr$k usr$f _4 usr$len usr$j_2 RET _2 _1 var_data_mpos usr$totallen usr$x _12 ]"
+        ir-optimize-evm+yul      # Compilation fails with "YulException: Variable _5 is 1 too deep in the stack [ _5 usr$i usr$h _7 usr$scratch usr$k usr$f _4 usr$len usr$j_2 RET _2 _1 var_data_mpos usr$totallen usr$x _12 ]"
         legacy-optimize-evm-only
         legacy-optimize-evm+yul
     )
diff --git a/test/externalTests/euler.sh b/test/externalTests/euler.sh
index 485d7ae56..a7ecffa57 100755
--- a/test/externalTests/euler.sh
+++ b/test/externalTests/euler.sh
@@ -44,7 +44,7 @@ function euler_test
         "${compile_only_presets[@]}"
         #ir-no-optimize           # Compilation fails with "YulException: Variable var_utilisation_307 is 6 slot(s) too deep inside the stack."
         #ir-optimize-evm-only     # Compilation fails with "YulException: Variable var_utilisation_307 is 6 slot(s) too deep inside the stack."
-        #ir-optimize-evm+yul      # Compilation fails with "YulException: Variable var_status_mpos is 3 too deep in the stack"
+        ir-optimize-evm+yul      # Compilation fails with "YulException: Variable var_status_mpos is 3 too deep in the stack"
         legacy-optimize-evm-only
         legacy-optimize-evm+yul
         legacy-no-optimize
diff --git a/test/externalTests/perpetual-pools.sh b/test/externalTests/perpetual-pools.sh
index 6c4af4937..a7cb27463 100755
--- a/test/externalTests/perpetual-pools.sh
+++ b/test/externalTests/perpetual-pools.sh
@@ -45,7 +45,7 @@ function perpetual_pools_test
         "${compile_only_presets[@]}"
         #ir-no-optimize            # Compilation fails with "YulException: Variable var_amount_527 is 9 slot(s) too deep inside the stack."
         #ir-optimize-evm-only      # Compilation fails with "YulException: Variable var_amount_527 is 9 slot(s) too deep inside the stack."
-        #ir-optimize-evm+yul       # Compilation fails with "YulException: Variable expr_mpos is 1 too deep in the stack"
+        ir-optimize-evm+yul       # Compilation fails with "YulException: Variable expr_mpos is 1 too deep in the stack"
         legacy-no-optimize
         legacy-optimize-evm-only
         legacy-optimize-evm+yul
diff --git a/test/externalTests/trident.sh b/test/externalTests/trident.sh
index 26c3d3810..28c17f24e 100755
--- a/test/externalTests/trident.sh
+++ b/test/externalTests/trident.sh
@@ -53,7 +53,7 @@ function trident_test
         "${compile_only_presets[@]}"
         #ir-no-optimize            # Compilation fails with: "YulException: Variable var_amount_165 is 9 slot(s) too deep inside the stack."
         #ir-optimize-evm-only      # Compilation fails with: "YulException: Variable var_amount_165 is 9 slot(s) too deep inside the stack."
-        #ir-optimize-evm+yul       # Compilation fails with: "YulException: Cannot swap Variable var_nearestTick with Variable _4: too deep in the stack by 4 slots"
+        ir-optimize-evm+yul       # Compilation fails with: "YulException: Cannot swap Variable var_nearestTick with Variable _4: too deep in the stack by 4 slots"
         legacy-no-optimize
         legacy-optimize-evm-only
         legacy-optimize-evm+yul