suzanne.soy/tock-mirror
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Moved customVarCompare from ArrayUsageCheck to UsageCheck and used it to derive Ord for the Var type

Browse Source
This commit is contained in:
Neil Brown 2008-01-25 16:34:18 +00:00
parent c2c761ab7d
commit 64a9292b75
2 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
transformations/ArrayUsageCheck.hs
View File

@ -142,6 +142,8 @@ data FlattenedExp
| Modulo (Set.Set FlattenedExp) (Set.Set FlattenedExp)
| Divide (Set.Set FlattenedExp) (Set.Set FlattenedExp)
--TODO change the A.Variable to Var, and automatically derive Eq and Ord
instance Eq FlattenedExp where
a == b = EQ == compare a b
@ -159,10 +161,6 @@ instance Ord FlattenedExp where
compare (Divide ltop lbottom) (Divide rtop rbottom)
= combineCompare [compare ltop rtop, compare lbottom rbottom]
customVarCompare :: A.Variable -> A.Variable -> Ordering
customVarCompare (A.Variable _ (A.Name _ _ lname)) (A.Variable _ (A.Name _ _ rname)) = compare lname rname
-- TODO the rest
onlyConst :: [FlattenedExp] -> Maybe Integer
onlyConst [] = Just 0
onlyConst ((Const n):es) = liftM2 (+) (return n) $ onlyConst es

10
transformations/UsageCheck.hs
View File

@ -29,6 +29,16 @@ import Metadata
newtype Var = Var A.Variable
customVarCompare :: A.Variable -> A.Variable -> Ordering
customVarCompare (A.Variable _ (A.Name _ _ lname)) (A.Variable _ (A.Name _ _ rname)) = compare lname rname
-- TODO the rest
instance Eq Var where
a == b = EQ == compare a b
instance Ord Var where
compare (Var a) (Var b) = customVarCompare a b
data Vars = Vars {
readVars :: Set.Set Var
,writtenVars :: Set.Set Var