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-rw-r--r--compiler/GHC/Cmm/LayoutStack.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/GHC/Cmm/LayoutStack.hs b/compiler/GHC/Cmm/LayoutStack.hs
index b996427bba..d2fe6aeb98 100644
--- a/compiler/GHC/Cmm/LayoutStack.hs
+++ b/compiler/GHC/Cmm/LayoutStack.hs
@@ -19,6 +19,7 @@ import GHC.Cmm.Utils
import GHC.Cmm.Graph
import GHC.Cmm.Liveness
import GHC.Cmm.ProcPoint
+import GHC.Cmm.Reg.Set
import GHC.Runtime.Heap.Layout
import GHC.Cmm.Dataflow.Block
import GHC.Cmm.Dataflow.Collections