Moduleghc-9.10.3GHC2021

GHC.StgToCmm.Types

6 types

Packageghc-9.10.3
Exports6
LanguageGHC2021
LicenceBSD-3-Clause
SourceTypes.hs

datadata CmmCgInfos

Codegen-generated Id infos, to be passed to downstream via interfaces.

This stuff is for optimization purposes only, they're not compulsory.

When CafInfo of an imported Id is not known it's safe to treat it as CAFFY.
When LambdaFormInfo of an imported Id is not known it's safe to treat it as `LFUnknown True` (which just says "it could be anything" and we do slow entry).

See also Note [Conveying CAF-info and LFInfo between modules] above.

Constructors

CmmCgInfos
- cgNonCafs :: !NonCaffySet
  Exported Non-CAFFY closures in the current module. Everything else is either not exported of CAFFY.
- cgLFInfos :: !ModuleLFInfos
  LambdaFormInfos of exported closures in the current module.
- cgIPEStub :: !CStub
  The C stub which is used for IPE information

datadata LambdaFormInfo

Information about an identifier, from the code generator's point of view. Every identifier is bound to a LambdaFormInfo in the environment, which gives the code generator enough info to be able to tail call or return that identifier.

Constructors

LFReEntrant !TopLevelFlag !RepArity !Bool !ArgDescr
LFThunk !TopLevelFlag !Bool !Bool !StandardFormInfo !Bool
LFCon !DataCon
LFUnknown !Bool
LFUnlifted
LFLetNoEscape

Instances1Outputable

Outputable LambdaFormInfoDefined in ghc-9.10.3 · GHC.StgToCmm.Types

typetype ModuleLFInfos = NameEnv LambdaFormInfo

Maps names in the current module to their LambdaFormInfos

datadata StandardFormInfo

StandardFormInfo tells whether this thunk has one of a small number of standard forms

Constructors

NonStandardThunk
SelectorThunk !WordOff
ApThunk !RepArity

Instances2Eq, Outputable

Eq StandardFormInfoDefined in ghc-9.10.3 · GHC.StgToCmm.Types
Outputable StandardFormInfoDefined in ghc-9.10.3 · GHC.StgToCmm.Types

typetype DoSCCProfiling = Bool

typetype DoExtDynRefs = Bool