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-rw-r--r--compiler/GHC/Data/Graph/Color.hs1
-rw-r--r--compiler/GHC/Data/Graph/Directed.hs1
-rw-r--r--compiler/GHC/Data/Graph/Ops.hs1
3 files changed, 3 insertions, 0 deletions
diff --git a/compiler/GHC/Data/Graph/Color.hs b/compiler/GHC/Data/Graph/Color.hs
index e4189acb61..4f7d74df40 100644
--- a/compiler/GHC/Data/Graph/Color.hs
+++ b/compiler/GHC/Data/Graph/Color.hs
@@ -25,6 +25,7 @@ import GHC.Types.Unique
import GHC.Types.Unique.FM
import GHC.Types.Unique.Set
import GHC.Utils.Outputable
+import GHC.Utils.Panic
import Data.Maybe
import Data.List
diff --git a/compiler/GHC/Data/Graph/Directed.hs b/compiler/GHC/Data/Graph/Directed.hs
index 5bd08b9641..806460d6df 100644
--- a/compiler/GHC/Data/Graph/Directed.hs
+++ b/compiler/GHC/Data/Graph/Directed.hs
@@ -46,6 +46,7 @@ import GHC.Prelude
import GHC.Utils.Misc ( minWith, count )
import GHC.Utils.Outputable
+import GHC.Utils.Panic
import GHC.Data.Maybe ( expectJust )
-- std interfaces
diff --git a/compiler/GHC/Data/Graph/Ops.hs b/compiler/GHC/Data/Graph/Ops.hs
index 99e4a7eea0..b6bce8a97c 100644
--- a/compiler/GHC/Data/Graph/Ops.hs
+++ b/compiler/GHC/Data/Graph/Ops.hs
@@ -41,6 +41,7 @@ import GHC.Prelude
import GHC.Data.Graph.Base
import GHC.Utils.Outputable
+import GHC.Utils.Panic
import GHC.Types.Unique
import GHC.Types.Unique.Set
import GHC.Types.Unique.FM