futhark-0.19.4: An optimising compiler for a functional, array-oriented language.
Safe HaskellSafe-Inferred
LanguageHaskell2010

Futhark.Analysis.SymbolTable

Synopsis

Documentation

data SymbolTable lore Source #

Instances

Instances details
Semigroup (SymbolTable lore) Source # 
Instance details

Defined in Futhark.Analysis.SymbolTable

Methods

(<>) :: SymbolTable lore -> SymbolTable lore -> SymbolTable lore #

sconcat :: NonEmpty (SymbolTable lore) -> SymbolTable lore #

stimes :: Integral b => b -> SymbolTable lore -> SymbolTable lore #

Monoid (SymbolTable lore) Source # 
Instance details

Defined in Futhark.Analysis.SymbolTable

Methods

mempty :: SymbolTable lore #

mappend :: SymbolTable lore -> SymbolTable lore -> SymbolTable lore #

mconcat :: [SymbolTable lore] -> SymbolTable lore #

fromScope :: ASTLore lore => Scope lore -> SymbolTable lore Source #

toScope :: SymbolTable lore -> Scope lore Source #

Entries

data Entry lore Source #

Instances

Instances details
ASTLore lore => Typed (Entry lore) Source # 
Instance details

Defined in Futhark.Analysis.SymbolTable

Methods

typeOf :: Entry lore -> Type Source #

entryIsSize :: Entry lore -> Bool Source #

True if this name has been used as an array size, implying that it is non-negative.

entryStm :: Entry lore -> Maybe (Stm lore) Source #

Lookup

lookup :: VName -> SymbolTable lore -> Maybe (Entry lore) Source #

lookupStm :: VName -> SymbolTable lore -> Maybe (Stm lore) Source #

lookupLoopVar :: VName -> SymbolTable lore -> Maybe SubExp Source #

If the given variable name is the name of a ForLoop parameter, then return the bound of that loop.

available :: VName -> SymbolTable lore -> Bool Source #

In symbol table and not consumed.

data Indexed Source #

The result of indexing a delayed array.

Constructors

Indexed Certificates (PrimExp VName)

A PrimExp based on the indexes (that is, without accessing any actual array).

IndexedArray Certificates VName [TPrimExp Int64 VName]

The indexing corresponds to another (perhaps more advantageous) array.

Instances

Instances details
FreeIn Indexed Source # 
Instance details

Defined in Futhark.Analysis.SymbolTable

Methods

freeIn' :: Indexed -> FV Source #

class IndexOp op where Source #

Minimal complete definition

Nothing

Methods

indexOp :: (ASTLore lore, IndexOp (Op lore)) => SymbolTable lore -> Int -> op -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

Instances

Instances details
IndexOp () Source # 
Instance details

Defined in Futhark.Analysis.SymbolTable

Methods

indexOp :: (ASTLore lore, IndexOp (Op lore)) => SymbolTable lore -> Int -> () -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

Decorations lore => IndexOp (SOAC lore) Source # 
Instance details

Defined in Futhark.IR.SOACS.SOAC

Methods

indexOp :: (ASTLore lore0, IndexOp (Op lore0)) => SymbolTable lore0 -> Int -> SOAC lore -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

IndexOp inner => IndexOp (MemOp inner) Source # 
Instance details

Defined in Futhark.IR.Mem

Methods

indexOp :: (ASTLore lore, IndexOp (Op lore)) => SymbolTable lore -> Int -> MemOp inner -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

ASTLore lore => IndexOp (SegOp lvl lore) Source # 
Instance details

Defined in Futhark.IR.SegOp

Methods

indexOp :: (ASTLore lore0, IndexOp (Op lore0)) => SymbolTable lore0 -> Int -> SegOp lvl lore -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

(ASTLore lore, IndexOp op) => IndexOp (MCOp lore op) Source # 
Instance details

Defined in Futhark.IR.MC.Op

Methods

indexOp :: (ASTLore lore0, IndexOp (Op lore0)) => SymbolTable lore0 -> Int -> MCOp lore op -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

(ASTLore lore, IndexOp op) => IndexOp (HostOp lore op) Source # 
Instance details

Defined in Futhark.IR.Kernels.Kernel

Methods

indexOp :: (ASTLore lore0, IndexOp (Op lore0)) => SymbolTable lore0 -> Int -> HostOp lore op -> [TPrimExp Int64 VName] -> Maybe Indexed Source #

Insertion

insertStm :: (ASTLore lore, IndexOp (Op lore), Aliased lore) => Stm lore -> SymbolTable lore -> SymbolTable lore Source #

insertStms :: (ASTLore lore, IndexOp (Op lore), Aliased lore) => Stms lore -> SymbolTable lore -> SymbolTable lore Source #

insertFParams :: ASTLore lore => [FParam lore] -> SymbolTable lore -> SymbolTable lore Source #

insertLParam :: ASTLore lore => LParam lore -> SymbolTable lore -> SymbolTable lore Source #

insertLoopMerge :: ASTLore lore => [(FParam lore, SubExp, SubExp)] -> SymbolTable lore -> SymbolTable lore Source #

Insert entries corresponding to the parameters of a loop (not distinguishing contect and value part). Apart from the parameter itself, we also insert the initial value and the subexpression providing the final value. Note that the latter is likely not in scope in the symbol at this point. This is OK, and can still be used to help some loop optimisations detect invariant loop parameters.

Misc

hideCertified :: Names -> SymbolTable lore -> SymbolTable lore Source #

Hide these definitions, if they are protected by certificates in the set of names.