Define setIdUnfoldingLazily, and use it in Vectorise

[ghc-hetmet.git] / compiler / basicTypes / Id.lhs

diff --git a/compiler/basicTypes/Id.lhs b/compiler/basicTypes/Id.lhs
index 3640693..d8771bc 100644 (file)
--- a/compiler/basicTypes/Id.lhs
+++ b/compiler/basicTypes/Id.lhs
@@ -76,6 +76,7 @@ module Id (
        idOccInfo,
 
        -- ** Writing 'IdInfo' fields
+       setIdUnfoldingLazily,
        setIdUnfolding,
        setIdArity,
        setIdDemandInfo, 
@@ -119,7 +120,8 @@ import Util( count )
 import StaticFlags
 
 -- infixl so you can say (id `set` a `set` b)
-infixl         1 `setIdUnfolding`,
+infixl         1 `setIdUnfoldingLazily`,
+         `setIdUnfolding`,
          `setIdArity`,
          `setIdOccInfo`,
          `setIdDemandInfo`,
@@ -496,6 +498,9 @@ realIdUnfolding :: Id -> Unfolding
 -- Expose the unfolding if there is one, including for loop breakers
 realIdUnfolding id = unfoldingInfo (idInfo id)
 
+setIdUnfoldingLazily :: Id -> Unfolding -> Id
+setIdUnfoldingLazily id unfolding = modifyIdInfo (`setUnfoldingInfoLazily` unfolding) id
+
 setIdUnfolding :: Id -> Unfolding -> Id
 setIdUnfolding id unfolding = modifyIdInfo (`setUnfoldingInfo` unfolding) id