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Improve precision of resume analysis on let binders #75

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Improve precision of resume analysis on let binders #75

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15 changes: 12 additions & 3 deletions src/Core/AnalysisResume.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -96,12 +96,21 @@ arExpr' appResume expr
Let [DefNonRec def] expr
| defName def == getName resumeName -- TODO: too weak a check!! improve it!! we just need to skip the first definition..
-> arExpr' appResume expr
Let defGroups body -- TODO: be more sophisticated here?
-> if (isResumingElem (bv defGroups `S.union` fv defGroups))
then ResumeNormal else arExpr' appResume body
Let defs body
-> rand (arDefs defs) $ arExpr' appResume body
Case exprs branches
-> arExprsAnd exprs `rand` arBranches appResume branches

arDefs :: [DefGroup] -> ResumeKind
arDefs defs
= rands (map arDef defs)

arDef :: DefGroup -> ResumeKind
arDef (DefRec defs)
= arExprsAnd (map defExpr defs)
arDef (DefNonRec def)
= arExpr (defExpr def)

arBranches :: ResumeKind -> [Branch] -> ResumeKind
arBranches appResume branches
= rors (map (arBranch appResume) branches)
Expand Down