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-rw-r--r--compiler/GHC/Stg/Syntax.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Stg/Syntax.hs b/compiler/GHC/Stg/Syntax.hs
index 185433100a..53e4b07c69 100644
--- a/compiler/GHC/Stg/Syntax.hs
+++ b/compiler/GHC/Stg/Syntax.hs
@@ -531,7 +531,7 @@ type GenStgAlt pass
GenStgExpr pass) -- ...right-hand side.
data AltType
- = PolyAlt -- Polymorphic (a lifted type variable)
+ = PolyAlt -- Polymorphic (a boxed type variable, lifted or unlifted)
| MultiValAlt Int -- Multi value of this arity (unboxed tuple or sum)
-- the arity could indeed be 1 for unary unboxed tuple
-- or enum-like unboxed sums