10 files changed, 13 insertions, 0 deletions
diff --git a/compiler/GHC/Stg/CSE.hs b/compiler/GHC/Stg/CSE.hs
index abe0b6e482..61362053f5 100644
--- a/compiler/GHC/Stg/CSE.hs
+++ b/compiler/GHC/Stg/CSE.hs
@@ -96,6 +96,7 @@ import GHC.Core.DataCon
 import GHC.Types.Id
 import GHC.Stg.Syntax
 import GHC.Utils.Outputable
+import GHC.Utils.Panic
 import GHC.Types.Basic (isWeakLoopBreaker)
 import GHC.Types.Var.Env
 import GHC.Core (AltCon(..))
diff --git a/compiler/GHC/Stg/DepAnal.hs b/compiler/GHC/Stg/DepAnal.hs
index 2325cbab09..223ab0c5bb 100644
--- a/compiler/GHC/Stg/DepAnal.hs
+++ b/compiler/GHC/Stg/DepAnal.hs
@@ -9,6 +9,7 @@ import GHC.Types.Id
 import GHC.Types.Name (Name, nameIsLocalOrFrom)
 import GHC.Types.Name.Env
 import GHC.Utils.Outputable
+import GHC.Utils.Panic
 import GHC.Types.Unique.Set (nonDetEltsUniqSet)
 import GHC.Types.Var.Set
 import GHC.Unit.Module (Module)
diff --git a/compiler/GHC/Stg/FVs.hs b/compiler/GHC/Stg/FVs.hs
index 7fd7a3cae6..211a0cb315 100644
--- a/compiler/GHC/Stg/FVs.hs
+++ b/compiler/GHC/Stg/FVs.hs
@@ -50,6 +50,7 @@ import GHC.Types.Var.Set
 import GHC.Core    ( Tickish(Breakpoint) )
 import GHC.Utils.Outputable
 import GHC.Utils.Misc
+import GHC.Utils.Panic
 
 import Data.Maybe ( mapMaybe )
 
diff --git a/compiler/GHC/Stg/Lift.hs b/compiler/GHC/Stg/Lift.hs
index 6a75d20dd0..8abd6fc67d 100644
--- a/compiler/GHC/Stg/Lift.hs
+++ b/compiler/GHC/Stg/Lift.hs
@@ -29,6 +29,7 @@ import GHC.Stg.Syntax
 import GHC.Utils.Outputable
 import GHC.Types.Unique.Supply
 import GHC.Utils.Misc
+import GHC.Utils.Panic
 import GHC.Types.Var.Set
 import Control.Monad ( when )
 import Data.Maybe ( isNothing )
diff --git a/compiler/GHC/Stg/Lift/Analysis.hs b/compiler/GHC/Stg/Lift/Analysis.hs
index 80883b9312..c0e4086f11 100644
--- a/compiler/GHC/Stg/Lift/Analysis.hs
+++ b/compiler/GHC/Stg/Lift/Analysis.hs
@@ -35,6 +35,7 @@ import qualified GHC.StgToCmm.ArgRep  as StgToCmm.ArgRep
 import qualified GHC.StgToCmm.Closure as StgToCmm.Closure
 import qualified GHC.StgToCmm.Layout  as StgToCmm.Layout
 import GHC.Utils.Outputable
+import GHC.Utils.Panic
 import GHC.Utils.Misc
 import GHC.Types.Var.Set
 
diff --git a/compiler/GHC/Stg/Lift/Monad.hs b/compiler/GHC/Stg/Lift/Monad.hs
index 04a3cbd470..4b99521066 100644
--- a/compiler/GHC/Stg/Lift/Monad.hs
+++ b/compiler/GHC/Stg/Lift/Monad.hs
@@ -37,6 +37,7 @@ import GHC.Stg.Syntax
 import GHC.Core.Utils
 import GHC.Types.Unique.Supply
 import GHC.Utils.Misc
+import GHC.Utils.Panic
 import GHC.Types.Var.Env
 import GHC.Types.Var.Set
 import GHC.Core.Multiplicity
diff --git a/compiler/GHC/Stg/Pipeline.hs b/compiler/GHC/Stg/Pipeline.hs
index 64c7e74979..3891346dab 100644
--- a/compiler/GHC/Stg/Pipeline.hs
+++ b/compiler/GHC/Stg/Pipeline.hs
@@ -29,6 +29,7 @@ import GHC.Driver.Session
 import GHC.Utils.Error
 import GHC.Types.Unique.Supply
 import GHC.Utils.Outputable
+import GHC.Utils.Panic
 import Control.Monad
 import Control.Monad.IO.Class
 import Control.Monad.Trans.State.Strict
diff --git a/compiler/GHC/Stg/Subst.hs b/compiler/GHC/Stg/Subst.hs
index ba3550b330..dce2859262 100644
--- a/compiler/GHC/Stg/Subst.hs
+++ b/compiler/GHC/Stg/Subst.hs
@@ -9,8 +9,12 @@ import GHC.Prelude
 import GHC.Types.Id
 import GHC.Types.Var.Env
 import Control.Monad.Trans.State.Strict
+
 import GHC.Utils.Outputable
 import GHC.Utils.Misc
+import GHC.Utils.Panic
+
+import GHC.Driver.Ppr
 
 -- | A renaming substitution from 'Id's to 'Id's. Like 'RnEnv2', but not
 -- maintaining pairs of substitutions. Like 'GHC.Core.Subst.Subst', but
diff --git a/compiler/GHC/Stg/Syntax.hs b/compiler/GHC/Stg/Syntax.hs
index 6d5baf7173..dcc9847ed4 100644
--- a/compiler/GHC/Stg/Syntax.hs
+++ b/compiler/GHC/Stg/Syntax.hs
@@ -88,6 +88,7 @@ import GHC.Core.TyCon    ( PrimRep(..), TyCon )
 import GHC.Core.Type     ( Type )
 import GHC.Types.RepType ( typePrimRep1 )
 import GHC.Utils.Misc
+import GHC.Utils.Panic
 
 import Data.List.NonEmpty ( NonEmpty, toList )
 
diff --git a/compiler/GHC/Stg/Unarise.hs b/compiler/GHC/Stg/Unarise.hs
index cea52d6cc3..85c022f799 100644
--- a/compiler/GHC/Stg/Unarise.hs
+++ b/compiler/GHC/Stg/Unarise.hs
@@ -214,6 +214,7 @@ import GHC.Core.Make (aBSENT_SUM_FIELD_ERROR_ID)
 import GHC.Types.Id.Make (voidPrimId, voidArgId)
 import GHC.Utils.Monad (mapAccumLM)
 import GHC.Utils.Outputable
+import GHC.Utils.Panic
 import GHC.Types.RepType
 import GHC.Stg.Syntax
 import GHC.Core.Type