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-rw-r--r--src/passes/Vacuum.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/passes/Vacuum.cpp b/src/passes/Vacuum.cpp
index bb005e36c..150593713 100644
--- a/src/passes/Vacuum.cpp
+++ b/src/passes/Vacuum.cpp
@@ -50,6 +50,8 @@ struct Vacuum : public WalkerPass<ExpressionStackWalker<Vacuum, Visitor<Vacuum>>
case Expression::Id::LoadId:
case Expression::Id::StoreId:
case Expression::Id::ReturnId:
+ case Expression::Id::GetGlobalId:
+ case Expression::Id::SetGlobalId:
case Expression::Id::HostId:
case Expression::Id::UnreachableId: return curr; // always needed