Safe Haskell	None
Language	Haskell2010

Language.Fortran.Vars.CPValue

Synopsis

data CPValue
- = Top
- | Const ExpVal
- | Bot
meet :: CPValue -> CPValue -> CPValue
unaryOper :: UnaryOp -> CPValue -> CPValue
binaryOper :: BinaryOp -> CPValue -> CPValue -> CPValue
isTop :: CPValue -> Bool
isBot :: CPValue -> Bool
isConstInt :: CPValue -> Bool

Documentation

data CPValue Source #

CPValue (Constant Propagation Value) represnts the value of an expression determined by constant propagation analysis. The value can be uninitialized, a constant, or unknown due to conflict. The data type is represented with ExpVal together with two special values: Top represents uninitialized value and is the least upper bound Bot represents unknown and is the greatest lower bound Top, Const, and Bot forms a lattice strucutre with meet operation defined below

Constructors

Top	represents uninitialized value
Const ExpVal	represents a constant value
Bot	short for bottom, represents unknown value

Instances

Instances details

Eq CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Methods (==) :: CPValue -> CPValue -> Bool # (/=) :: CPValue -> CPValue -> Bool #
Data CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CPValue -> c CPValue # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CPValue # toConstr :: CPValue -> Constr # dataTypeOf :: CPValue -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CPValue) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CPValue) # gmapT :: (forall b. Data b => b -> b) -> CPValue -> CPValue # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CPValue -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CPValue -> r # gmapQ :: (forall d. Data d => d -> u) -> CPValue -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> CPValue -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> CPValue -> m CPValue # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CPValue -> m CPValue # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CPValue -> m CPValue #
Ord CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Methods compare :: CPValue -> CPValue -> Ordering # (<) :: CPValue -> CPValue -> Bool # (<=) :: CPValue -> CPValue -> Bool # (>) :: CPValue -> CPValue -> Bool # (>=) :: CPValue -> CPValue -> Bool # max :: CPValue -> CPValue -> CPValue # min :: CPValue -> CPValue -> CPValue #
Show CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Methods showsPrec :: Int -> CPValue -> ShowS # show :: CPValue -> String # showList :: [CPValue] -> ShowS #
Generic CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Associated Types type Rep CPValue :: Type -> Type # Methods from :: CPValue -> Rep CPValue x # to :: Rep CPValue x -> CPValue #
NFData CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue Methods rnf :: CPValue -> () #
type Rep CPValue Source #
Instance details Defined in Language.Fortran.Vars.CPValue type Rep CPValue = D1 ('MetaData "CPValue" "Language.Fortran.Vars.CPValue" "fortran-vars-0.3.0-inplace" 'False) (C1 ('MetaCons "Top" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "Const" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 ExpVal)) :+: C1 ('MetaCons "Bot" 'PrefixI 'False) (U1 :: Type -> Type)))

meet :: CPValue -> CPValue -> CPValue Source #

meet operation for CPValue lattice. meet of two different constant value indicates conflict, therefore yields Bot.

unaryOper :: UnaryOp -> CPValue -> CPValue Source #

binaryOper :: BinaryOp -> CPValue -> CPValue -> CPValue Source #

isTop :: CPValue -> Bool Source #

isBot :: CPValue -> Bool Source #

isConstInt :: CPValue -> Bool Source #