%
-% (c) The GRASP/AQUA Project, Glasgow University, 1992-1995
+% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
\section[CodeGen]{@CodeGen@: main module of the code generator}
%************************************************************************
\begin{code}
-#include "HsVersions.h"
-
-module CodeGen (
- codeGen,
-
- -- and to make the interface self-sufficient...
- UniqFM, AbstractC, StgBinding, Id, FiniteMap
- ) where
+module CodeGen ( codeGen ) where
+#include "HsVersions.h"
import StgSyn
import CgMonad
import AbsCSyn
+import CLabel ( CLabel, mkSRTLabel, mkClosureLabel )
-import CLabelInfo ( modnameToC )
+import PprAbsC ( dumpRealC )
+import AbsCUtils ( mkAbstractCs, mkAbsCStmts, flattenAbsC )
+import CgBindery ( CgIdInfo, addBindC, addBindsC )
import CgClosure ( cgTopRhsClosure )
import CgCon ( cgTopRhsCon )
-import CgConTbls ( genStaticConBits, TCE(..), UniqFM )
-import ClosureInfo ( LambdaFormInfo, mkClosureLFInfo )
-import CmdLineOpts ( GlobalSwitch(..), switchIsOn, stringSwitchSet, SwitchResult )
+import CgConTbls ( genStaticConBits )
+import ClosureInfo ( mkClosureLFInfo )
+import CmdLineOpts ( opt_SccProfilingOn, opt_EnsureSplittableC,
+ opt_D_dump_absC, opt_SccGroup
+ )
+import CostCentre ( CostCentre, CostCentreStack )
import FiniteMap ( FiniteMap )
-import Maybes ( Maybe(..) )
-import PrimKind ( getKindSize )
+import Id ( Id, idName )
+import Module ( Module, moduleString, ModuleName, moduleNameString )
+import PrimRep ( getPrimRepSize, PrimRep(..) )
+import Type ( Type )
+import TyCon ( TyCon, isDataTyCon )
+import Class ( Class, classTyCon )
+import BasicTypes ( TopLevelFlag(..) )
+import UniqSupply ( mkSplitUniqSupply )
+import ErrUtils ( dumpIfSet )
import Util
+import Panic ( assertPanic )
\end{code}
\begin{code}
-codeGen :: FAST_STRING -- module name
- -> ([CostCentre], -- local cost-centres needing declaring/registering
- [CostCentre]) -- "extern" cost-centres needing declaring
- -> [FAST_STRING] -- import names
- -> (GlobalSwitch -> SwitchResult)
- -- global switch lookup function
- -> [TyCon] -- tycons with data constructors to convert
- -> FiniteMap TyCon [[Maybe UniType]]
- -- tycon specialisation info
- -> PlainStgProgram -- bindings to convert
- -> AbstractC -- output
-
-codeGen mod_name (local_CCs, extern_CCs) import_names sw_lookup_fn gen_tycons tycon_specs stg_pgm
- = let
- switch_is_on = switchIsOn sw_lookup_fn
- doing_profiling = switch_is_on SccProfilingOn
- compiling_prelude = switch_is_on CompilingPrelude
- splitting = switch_is_on (EnsureSplittableC (panic "codeGen:esc"))
+
+
+codeGen :: Module -- Module name
+ -> [ModuleName] -- Import names
+ -> ([CostCentre], -- Local cost-centres needing declaring/registering
+ [CostCentre], -- "extern" cost-centres needing declaring
+ [CostCentreStack]) -- Pre-defined "singleton" cost centre stacks
+ -> [TyCon] -> [Class] -- Local tycons and classes
+ -> [(StgBinding,[Id])] -- Bindings to convert, with SRTs
+ -> IO AbstractC -- Output
+
+codeGen mod_name imported_modules cost_centre_info
+ tycons classes stg_binds
+ = mkSplitUniqSupply 'f' >>= \ fl_uniqs -> -- absC flattener
+ let
+ datatype_stuff = genStaticConBits cinfo data_tycons
+ code_stuff = initC cinfo (cgTopBindings maybe_split stg_binds)
+ cost_centre_stuff = mkCostCentreStuff mod_name imported_modules cost_centre_info
+
+ abstractC = mkAbstractCs [ cost_centre_stuff,
+ datatype_stuff,
+ code_stuff ]
+
+ flat_abstractC = flattenAbsC fl_uniqs abstractC
in
- if not doing_profiling then
- let
- cinfo = MkCompInfo switch_is_on mod_name
- in
- mkAbstractCs [
- genStaticConBits cinfo gen_tycons tycon_specs,
- initC cinfo (cgTopBindings splitting stg_pgm) ]
-
- else -- yes, cost-centre profiling:
- -- Besides the usual stuff, we must produce:
- --
- -- * Declarations for the cost-centres defined in this module;
- -- * Code to participate in "registering" all the cost-centres
- -- in the program (done at startup time when the pgm is run).
- --
- -- (The local cost-centres involved in this are passed
- -- into the code-generator, as are the imported-modules' names.)
- --
- -- Note: we don't register/etc if compiling Prelude bits.
- let
- cinfo = MkCompInfo switch_is_on mod_name
- in
- mkAbstractCs [
- if compiling_prelude
- then AbsCNop
- else mkAbstractCs [mkAbstractCs (map (CCostCentreDecl True) local_CCs),
- mkAbstractCs (map (CCostCentreDecl False) extern_CCs),
- mkCcRegister local_CCs import_names],
-
- genStaticConBits cinfo gen_tycons tycon_specs,
- initC cinfo (cgTopBindings splitting stg_pgm) ]
+ dumpIfSet opt_D_dump_absC "Abstract C" (dumpRealC abstractC) >>
+ return flat_abstractC
+
+ where
+ data_tycons = filter isDataTyCon (tycons ++ map classTyCon classes)
+ -- Generate info tables for the data constrs arising
+ -- from class decls as well
+
+ maybe_split = if opt_EnsureSplittableC
+ then CSplitMarker
+ else AbsCNop
+ cinfo = MkCompInfo mod_name
+\end{code}
+
+Cost-centre profiling:
+Besides the usual stuff, we must produce:
+
+* Declarations for the cost-centres defined in this module;
+* Code to participate in "registering" all the cost-centres
+ in the program (done at startup time when the pgm is run).
+
+(The local cost-centres involved in this are passed
+into the code-generator, as are the imported-modules' names.)
+
+\begin{code}
+mkCostCentreStuff mod_name import_names (local_CCs, extern_CCs, singleton_CCSs)
+ | not opt_SccProfilingOn = AbsCNop
+ | otherwise = mkAbstractCs (
+ map (CCostCentreDecl True) local_CCs ++
+ map (CCostCentreDecl False) extern_CCs ++
+ map CCostCentreStackDecl singleton_CCSs ++
+ mkCcRegister local_CCs singleton_CCSs import_names
+ )
+
where
- -----------------
- grp_name = case (stringSwitchSet sw_lookup_fn SccGroup) of
- Just xx -> _PK_ xx
- Nothing -> mod_name -- default: module name
-
- -----------------
- mkCcRegister ccs import_names
- = let
+ mkCcRegister ccs cc_stacks import_names
+ = let
register_ccs = mkAbstractCs (map mk_register ccs)
- register_imports = mkAbstractCs (map mk_import_register import_names)
+ register_imports
+ = foldr (mkAbsCStmts . mk_import_register) AbsCNop import_names
+ register_cc_stacks = mkAbstractCs (map mk_register_ccs cc_stacks)
in
- mkAbstractCs [
- CCallProfCCMacro SLIT("START_REGISTER_CCS") [CLitLit (modnameToC (SLIT("_reg") _APPEND_ mod_name)) AddrKind],
+ [
+ CCallProfCCMacro SLIT("START_REGISTER_CCS")
+ [ CLitLit (_PK_ ("_reg" ++ moduleString mod_name)) AddrRep],
register_ccs,
+ register_cc_stacks,
register_imports,
CCallProfCCMacro SLIT("END_REGISTER_CCS") []
]
mk_register cc
= CCallProfCCMacro SLIT("REGISTER_CC") [mkCCostCentre cc]
+ mk_register_ccs ccs
+ = CCallProfCCMacro SLIT("REGISTER_CCS") [mkCCostCentreStack ccs]
+
mk_import_register import_name
- = CCallProfCCMacro SLIT("REGISTER_IMPORT") [CLitLit (modnameToC (SLIT("_reg") _APPEND_ import_name)) AddrKind]
+ = CCallProfCCMacro SLIT("REGISTER_IMPORT")
+ [CLitLit (_PK_ ("_reg" ++ moduleNameString import_name)) AddrRep]
\end{code}
%************************************************************************
variable.
\begin{code}
-cgTopBindings :: Bool -> PlainStgProgram -> Code
+cgTopBindings :: AbstractC -> [(StgBinding,[Id])] -> Code
+
+cgTopBindings split bindings = mapCs (cgTopBinding split) bindings
-cgTopBindings splitting bindings = mapCs (cgTopBinding splitting) bindings
-
-cgTopBinding :: Bool -> PlainStgBinding -> Code
+cgTopBinding :: AbstractC -> (StgBinding,[Id]) -> Code
-cgTopBinding splitting (StgNonRec name rhs)
- = absC maybe_split `thenC`
- cgTopRhs name rhs `thenFC` \ (name, info) ->
+cgTopBinding split ((StgNonRec name rhs), srt)
+ = absC split `thenC`
+ absC (mkSRT srt_label srt) `thenC`
+ setSRTLabel srt_label (
+ cgTopRhs name rhs `thenFC` \ (name, info) ->
addBindC name info
+ )
where
- maybe_split = if splitting then CSplitMarker else AbsCNop
+ srt_label = mkSRTLabel (idName name)
-cgTopBinding splitting (StgRec pairs)
- = absC maybe_split `thenC`
+cgTopBinding split ((StgRec pairs@((name,rhs):_)), srt)
+ = absC split `thenC`
+ absC (mkSRT srt_label srt) `thenC`
+ setSRTLabel srt_label (
fixC (\ new_binds -> addBindsC new_binds `thenC`
mapFCs ( \ (b,e) -> cgTopRhs b e ) pairs
- ) `thenFC` \ new_binds ->
+ ) `thenFC` \ new_binds ->
addBindsC new_binds
+ )
where
- maybe_split = if splitting then CSplitMarker else AbsCNop
+ srt_label = mkSRTLabel (idName name)
+
+mkSRT :: CLabel -> [Id] -> AbstractC
+mkSRT lbl [] = AbsCNop
+mkSRT lbl ids = CSRT lbl (map (mkClosureLabel . idName) ids)
-- Urgh! I tried moving the forkStatics call from the rhss of cgTopRhs
-- to enclose the listFCs in cgTopBinding, but that tickled the
-- statics "error" call in initC. I DON'T UNDERSTAND WHY!
-cgTopRhs :: Id -> PlainStgRhs -> FCode (Id, CgIdInfo)
+cgTopRhs :: Id -> StgRhs -> FCode (Id, CgIdInfo)
-- the Id is passed along for setting up a binding...
-cgTopRhs name (StgRhsCon cc con args)
- = forkStatics (cgTopRhsCon name con args (all zero_size args))
+cgTopRhs bndr (StgRhsCon cc con args)
+ = forkStatics (cgTopRhsCon bndr con args (all zero_size args))
where
- zero_size atom = getKindSize (getAtomKind atom) == 0
+ zero_size atom = getPrimRepSize (getArgPrimRep atom) == 0
-cgTopRhs name (StgRhsClosure cc bi fvs upd_flag args body)
+cgTopRhs bndr (StgRhsClosure cc bi srt fvs upd_flag args body)
= ASSERT(null fvs) -- There should be no free variables
- forkStatics (cgTopRhsClosure name cc bi args body lf_info)
- where
- lf_info = mkClosureLFInfo True{-top level-} [{-no fvs-}] upd_flag args body
+ getSRTLabel `thenFC` \srt_label ->
+ let lf_info =
+ mkClosureLFInfo bndr TopLevel [{-no fvs-}] upd_flag args srt_label srt
+ in
+ forkStatics (cgTopRhsClosure bndr cc bi args body lf_info)
\end{code}
projects / ghc-hetmet.git / blobdiff