GHC.StgToCmm.Layout

Documentation

mkArgDescr :: DynFlags -> [Id] -> ArgDescr

emitCall :: (Convention, Convention) -> CmmExpr -> [CmmExpr] -> FCode ReturnKind

emitCall conv fun args makes a call to the entry-code of fun, using the call/return convention conv, passing args, and returning the results to the current sequel.

emitReturn :: [CmmExpr] -> FCode ReturnKind

Return multiple values to the sequel

If the sequel is Return

    return (x,y)

If the sequel is AssignTo [p,q]

   p=x; q=y;

adjustHpBackwards :: FCode ()

emitClosureProcAndInfoTable :: Bool -> Id -> LambdaFormInfo -> CmmInfoTable -> [NonVoid Id] -> ((Int, LocalReg, [LocalReg]) -> FCode ()) -> FCode ()

emitClosureAndInfoTable :: CmmInfoTable -> Convention -> [LocalReg] -> FCode () -> FCode ()

slowCall :: CmmExpr -> [StgArg] -> FCode ReturnKind

directCall :: Convention -> CLabel -> RepArity -> [StgArg] -> FCode ReturnKind

data FieldOffOrPadding a

Constructors

FieldOff (NonVoid a) ByteOff

Padding ByteOff ByteOff

data ClosureHeader

Used to tell the various mkVirtHeapOffsets functions what kind of header the object has. This will be accounted for in the offsets of the fields returned.

Constructors

NoHeader

StdHeader

ThunkHeader

mkVirtHeapOffsets :: DynFlags -> ClosureHeader -> [NonVoid (PrimRep, a)] -> (WordOff, WordOff, [(NonVoid a, ByteOff)])

mkVirtHeapOffsetsWithPadding :: DynFlags -> ClosureHeader -> [NonVoid (PrimRep, a)] -> (WordOff, WordOff, [FieldOffOrPadding a])

mkVirtConstrOffsets :: DynFlags -> [NonVoid (PrimRep, a)] -> (WordOff, WordOff, [(NonVoid a, ByteOff)])

Just like mkVirtHeapOffsets, but for constructors

mkVirtConstrSizes :: DynFlags -> [NonVoid PrimRep] -> (WordOff, WordOff)

Just like mkVirtConstrOffsets, but used when we don't have the actual arguments. Useful when e.g. generating info tables; we just need to know sizes of pointer and non-pointer fields.

getHpRelOffset :: VirtualHpOffset -> FCode CmmExpr

data ArgRep

Constructors

P

N

L

V

F

D

V16

V32

V64

Instances

Outputable ArgRep

Defined in GHC.StgToCmm.ArgRep

Methods

ppr :: ArgRep -> SDoc

pprPrec :: Rational -> ArgRep -> SDoc

toArgRep :: PrimRep -> ArgRep

argRepSizeW :: DynFlags -> ArgRep -> WordOff