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Diffstat (limited to 'compiler/GHC/Data/Graph/Ops.hs')
| -rw-r--r-- | compiler/GHC/Data/Graph/Ops.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Data/Graph/Ops.hs b/compiler/GHC/Data/Graph/Ops.hs index d2671f252d..dc90b9e5ad 100644 --- a/compiler/GHC/Data/Graph/Ops.hs +++ b/compiler/GHC/Data/Graph/Ops.hs @@ -633,7 +633,7 @@ checkNode graph node $ nonDetEltsUniqSet $ nodeConflicts node -- See Note [Unique Determinism and code generation] - , neighbourColors <- catMaybes $ map nodeColor neighbors + , neighbourColors <- mapMaybe nodeColor neighbors , elem color neighbourColors = False |