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-rw-r--r--compiler/GHC/CmmToAsm/Reg/Linear/State.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/GHC/CmmToAsm/Reg/Linear/State.hs b/compiler/GHC/CmmToAsm/Reg/Linear/State.hs
index f96cc71239..ab05ab632a 100644
--- a/compiler/GHC/CmmToAsm/Reg/Linear/State.hs
+++ b/compiler/GHC/CmmToAsm/Reg/Linear/State.hs
@@ -1,4 +1,5 @@
{-# LANGUAGE CPP, PatternSynonyms, DeriveFunctor #-}
+{-# LANGUAGE ScopedTypeVariables #-}
#if !defined(GHC_LOADED_INTO_GHCI)
{-# LANGUAGE UnboxedTuples #-}