diff options
Diffstat (limited to 'compiler/GHC/Core.hs')
| -rw-r--r-- | compiler/GHC/Core.hs | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/compiler/GHC/Core.hs b/compiler/GHC/Core.hs index 8c354b5298..b8d44d98a0 100644 --- a/compiler/GHC/Core.hs +++ b/compiler/GHC/Core.hs @@ -69,7 +69,7 @@ module GHC.Core ( maybeUnfoldingTemplate, otherCons, isValueUnfolding, isEvaldUnfolding, isCheapUnfolding, isExpandableUnfolding, isConLikeUnfolding, isCompulsoryUnfolding, - isStableUnfolding, isFragileUnfolding, hasSomeUnfolding, + isStableUnfolding, hasCoreUnfolding, hasSomeUnfolding, isBootUnfolding, canUnfold, neverUnfoldGuidance, isStableSource, @@ -1739,14 +1739,13 @@ neverUnfoldGuidance :: UnfoldingGuidance -> Bool neverUnfoldGuidance UnfNever = True neverUnfoldGuidance _ = False -isFragileUnfolding :: Unfolding -> Bool --- An unfolding is fragile if it mentions free variables or --- is otherwise subject to change. A robust one can be kept. --- See Note [Fragile unfoldings] -isFragileUnfolding (CoreUnfolding {}) = True -isFragileUnfolding (DFunUnfolding {}) = True -isFragileUnfolding _ = False - -- NoUnfolding, BootUnfolding, OtherCon are all non-fragile +hasCoreUnfolding :: Unfolding -> Bool +-- An unfolding "has Core" if it contains a Core expression, which +-- may mention free variables. See Note [Fragile unfoldings] +hasCoreUnfolding (CoreUnfolding {}) = True +hasCoreUnfolding (DFunUnfolding {}) = True +hasCoreUnfolding _ = False + -- NoUnfolding, BootUnfolding, OtherCon have no Core canUnfold :: Unfolding -> Bool canUnfold (CoreUnfolding { uf_guidance = g }) = not (neverUnfoldGuidance g) |