--- /dev/null
+%
+\section{Generate .NET extended IL}
+
+\begin{code}
+module IlxGen( ilxGen ) where
+
+#include "HsVersions.h"
+
+import Char ( ord, chr )
+import StgSyn
+import Id ( idType, idName, isDeadBinder, idArity )
+import Var ( Var, Id, TyVar, isId, isTyVar, tyVarKind, tyVarName )
+import VarEnv
+import VarSet ( isEmptyVarSet )
+import TyCon ( TyCon, tyConPrimRep, isUnboxedTupleTyCon, tyConDataCons,
+ tyConTyVars, isDataTyCon, isAlgTyCon, tyConArity
+ )
+import Type ( liftedTypeKind, openTypeKind, unliftedTypeKind,
+ isUnLiftedType, isTyVarTy, mkTyVarTy, predTypeRep, pprType,
+ splitForAllTys, splitFunTys, applyTy, applyTys, eqKind, tyVarsOfTypes
+ )
+import TypeRep ( Type(..) )
+import DataCon ( isUnboxedTupleCon, dataConTyCon, dataConRepType, dataConRepArgTys, DataCon(..) )
+import Literal ( Literal(..) )
+import PrelNames -- Lots of keys
+import PrimOp ( PrimOp(..) )
+import ForeignCall ( CCallConv(..), ForeignCall(..), CCallSpec(..), CCallTarget(..), DNCallSpec(..) )
+import TysWiredIn ( mkTupleTy, tupleCon )
+import PrimRep ( PrimRep(..) )
+import Name ( nameModule, nameOccName, isExternalName, isInternalName, NamedThing(getName) )
+import Subst ( substTyWith )
+
+import Module ( Module, PackageName, ModuleName, moduleName,
+ modulePackage, basePackage,
+ isHomeModule, isVanillaModule,
+ pprModuleName, mkHomeModule, mkModuleName
+ )
+
+import UniqFM
+import BasicTypes ( Boxity(..) )
+import CStrings ( CLabelString, pprCLabelString )
+import Outputable
+import Char ( ord )
+import List ( partition, elem, insertBy,any )
+import UniqSet
+
+import TysPrim ( foreignObjPrimTyCon, weakPrimTyCon, byteArrayPrimTyCon, mutableByteArrayPrimTyCon )
+
+-- opt_SimplDoEtaReduction is used to help with assembly naming conventions for different
+-- versions of compiled Haskell code. We add a ".O" to all assembly and module
+-- names when this is set (because that's clue that -O was set).
+-- One day this will be configured by the command line.
+import DynFlags ( opt_InPackage, opt_SimplDoEtaReduction )
+
+import Util ( lengthIs, equalLength )
+
+\end{code}
+
+
+
+%************************************************************************
+%* *
+\subsection{Main driver}
+%* *
+%************************************************************************
+
+\begin{code}
+ilxGen :: Module -> [TyCon] -> [(StgBinding,[Id])] -> SDoc
+ -- The TyCons should include those arising from classes
+ilxGen mod tycons binds_w_srts
+ = vcat [ text ".module '" <> (ppr (moduleName mod)) <> hscOptionQual <> text "o'",
+ text ".assembly extern 'mscorlib' {}",
+ vcat (map (ilxImportPackage topenv) (uniqSetToList import_packages)),
+ vcat (map (ilxImportModule topenv) (uniqSetToList import_modules)),
+ vcat (map (ilxImportTyCon topenv) (uniqSetToList import_tycons)),
+ vcat (map (ilxImportCCall topenv) (map snd (ufmToList import_ccalls))),
+ vcat (map (ilxTyCon topenv) data_tycons),
+ vcat (map (ilxBindClosures topenv) binds),
+ ilxTopBind mod topenv toppairs
+ ]
+ where
+ binds = map fst binds_w_srts
+ toppairs = ilxPairs binds
+ topenv = extendIlxEnvWithTops (emptyIlxEnv False mod) mod toppairs
+ -- Generate info from class decls as well
+ (import_packages,import_modules,import_tycons,import_ccalls) = importsBinds topenv binds (importsPrelude emptyImpInfo)
+ data_tycons = filter isDataTyCon tycons
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{Find Imports}
+%* *
+%************************************************************************
+
+\begin{code}
+
+importsBinds :: IlxEnv -> [StgBinding] -> ImportsInfo -> ImportsInfo
+importsBinds env binds = foldR (importsBind env) binds
+
+importsNone :: ImportsInfo -> ImportsInfo
+importsNone sofar = sofar
+
+importsBind :: IlxEnv -> StgBinding -> ImportsInfo -> ImportsInfo
+importsBind env (StgNonRec _ b rhs) = importsRhs env rhs.importsVar env b
+importsBind env (StgRec _ pairs) = foldR (\(b,rhs) -> importsRhs env rhs . importsVar env b) pairs
+
+importsRhs :: IlxEnv -> StgRhs -> ImportsInfo -> ImportsInfo
+importsRhs env (StgRhsCon _ con args) = importsDataCon env con . importsStgArgs env args
+importsRhs env (StgRhsClosure _ _ _ _ args body) = importsExpr env body. importsVars env args
+
+importsExpr :: IlxEnv -> StgExpr -> ImportsInfo -> ImportsInfo
+importsExpr env (StgLit _) = importsNone
+importsExpr env (StgApp f args) = importsVar env f.importsStgArgs env args
+importsExpr env (StgConApp con args) = importsDataCon env con.importsStgArgs env args
+importsExpr env (StgOpApp (StgFCallOp (CCall (CCallSpec (StaticTarget c) cc _)) _) args rty)
+ = addCCallInfo (c,cc, map stgArgType tm_args, rty) . importsStgArgs env args
+ where
+ (ty_args,tm_args) = splitTyArgs1 args
+
+importsExpr env (StgOpApp _ args res_ty) = importsType env res_ty. importsStgArgs env args
+
+
+importsExpr env (StgSCC _ expr) = importsExpr env expr
+importsExpr env (StgCase scrut _ _ bndr _ alts)
+ = importsExpr env scrut. imports_alts alts. importsVar env bndr
+ where
+ imports_alts (StgAlgAlts _ alg_alts deflt) -- The Maybe TyCon part is dealt with
+ -- by the case-binder's type
+ = foldR imports_alg_alt alg_alts . imports_deflt deflt
+ where
+ imports_alg_alt (con, bndrs, _, rhs)
+ = importsExpr env rhs . importsDataCon env con. importsVars env bndrs
+
+ imports_alts (StgPrimAlts _ alg_alts deflt)
+ = foldR imports_prim_alt alg_alts . imports_deflt deflt
+ where
+ imports_prim_alt (_, rhs) = importsExpr env rhs
+ imports_deflt StgNoDefault = importsNone
+ imports_deflt (StgBindDefault rhs) = importsExpr env rhs
+
+
+importsExpr env (StgLetNoEscape _ _ bind body) = importsExpr env (StgLet bind body)
+importsExpr env (StgLet bind body)
+ = importsBind env bind . importsExpr env body
+
+importsApp env v args = importsVar env v. importsStgArgs env args
+importsStgArgs env args = foldR (importsStgArg env) args
+
+importsStgArg :: IlxEnv -> StgArg -> ImportsInfo -> ImportsInfo
+importsStgArg env (StgTypeArg ty) = importsType env ty
+importsStgArg env (StgVarArg v) = importsVar env v
+importsStgArg env _ = importsNone
+
+importsVars env vs = foldR (importsVar env) vs
+importsVar env v = importsName env (idName v). importsType env (idType v)
+
+importsName env n
+ | isInternalName n = importsNone
+ | ilxEnvModule env == nameModule n = importsNone
+ | isHomeModule (nameModule n) = addModuleImpInfo (moduleName (nameModule n))
+-- See HACK below
+ | isVanillaModule (nameModule n) && not inPrelude = importsPrelude
+ | isVanillaModule (nameModule n) && inPrelude = addModuleImpInfo (moduleName (nameModule n))
+-- End HACK
+ | otherwise = addPackageImpInfo (modulePackage (nameModule n))
+
+
+importsPrelude | inPrelude = addModuleImpInfo (mkModuleName "PrelGHC")
+ | otherwise = addPackageImpInfo basePackage
+
+
+importsType :: IlxEnv -> Type -> ImportsInfo -> ImportsInfo
+importsType env ty = importsType2 env (deepIlxRepType ty)
+
+importsType2 :: IlxEnv -> Type -> ImportsInfo -> ImportsInfo
+importsType2 env (AppTy f x) = importsType2 env f . importsType2 env x
+importsType2 env (TyVarTy _) = importsNone
+importsType2 env (TyConApp tc args) =importsTyCon env tc . importsTypeArgs2 env args
+importsType2 env (FunTy arg res) = importsType env arg . importsType2 env res
+importsType2 env (ForAllTy tv body_ty) = importsType2 env body_ty
+importsType2 env (NoteTy _ ty) = importsType2 env ty
+importsType2 _ _ = panic "IlxGen.lhs: importsType2 ty"
+importsTypeArgs2 env tys = foldR (importsType2 env) tys
+
+importsDataCon env dcon = importsTyCon env (dataConTyCon dcon)
+
+importsTyCon env tc | (not (isDataTyCon tc) ||
+ isInternalName (getName tc) ||
+ ilxEnvModule env == nameModule (getName tc)) = importsNone
+importsTyCon env tc | otherwise = importsName env (getName tc) . addTyConImpInfo tc .
+ foldR (importsTyConDataCon env) (tyConDataCons tc)
+
+
+importsTyConDataCon :: IlxEnv -> DataCon -> ImportsInfo -> ImportsInfo
+importsTyConDataCon env dcon = foldR (importsTyConDataConType env) (filter (not . isVoidIlxRepType) (dataConRepArgTys dcon))
+
+importsTyConDataConType :: IlxEnv -> Type -> ImportsInfo -> ImportsInfo
+importsTyConDataConType env ty = importsTyConDataConType2 env (deepIlxRepType ty)
+
+importsTyConDataConType2 :: IlxEnv -> Type -> ImportsInfo -> ImportsInfo
+importsTyConDataConType2 env (AppTy f x) = importsTyConDataConType2 env f . importsTyConDataConType2 env x
+importsTyConDataConType2 env (TyVarTy _) = importsNone
+importsTyConDataConType2 env (TyConApp tc args) = importsTyConDataConTypeTyCon env tc . importsTyConDataConTypeArgs2 env args
+importsTyConDataConType2 env (FunTy arg res) = importsTyConDataConType env arg . importsTyConDataConType2 env res
+importsTyConDataConType2 env (ForAllTy tv body_ty) = importsTyConDataConType2 env body_ty
+importsTyConDataConType2 env (NoteTy _ ty) = importsTyConDataConType2 env ty
+importsTyConDataConType2 _ _ = panic "IlxGen.lhs: importsTyConDataConType2 ty"
+importsTyConDataConTypeArgs2 env tys = foldR (importsTyConDataConType2 env) tys
+
+importsTyConDataConTypeTyCon env tc | (not (isDataTyCon tc) ||
+ isInternalName (getName tc) ||
+ ilxEnvModule env == nameModule (getName tc)) = importsNone
+importsTyConDataConTypeTyCon env tc | otherwise = importsName env (getName tc)
+
+
+type StaticCCallInfo = (CLabelString,CCallConv,[Type],Type)
+type ImportsInfo = (UniqSet PackageName, UniqSet ModuleName, UniqSet TyCon, UniqFM StaticCCallInfo)
+ -- (Packages, Modules, Datatypes, Imported CCalls)
+
+emptyImpInfo :: ImportsInfo
+emptyImpInfo = (emptyUniqSet, emptyUniqSet, emptyUniqSet, emptyUFM)
+addPackageImpInfo p (w,x,y,z) = (addOneToUniqSet w p, x, y,z)
+addModuleImpInfo m (w,x,y,z) = (w, addOneToUniqSet x m, y,z)
+addTyConImpInfo tc (w,x,y,z) = (w, x, addOneToUniqSet y tc,z)
+addCCallInfo info@(nm,a,b,c) (w,x,y,z) = (w, x, y,addToUFM z nm info)
+
+ilxImportTyCon :: IlxEnv -> TyCon -> SDoc
+ilxImportTyCon env tycon | isDataTyCon tycon = ilxTyConDef True env tycon
+ilxImportTyCon _ _ | otherwise = empty
+
+ilxImportPackage :: IlxEnv -> PackageName -> SDoc
+ilxImportPackage _ p = text ".assembly extern" <+> singleQuotes (ppr p <> hscOptionQual) <+> text "{ }"
+
+ilxImportModule :: IlxEnv -> ModuleName -> SDoc
+ilxImportModule _ m = text ".module extern" <+> singleQuotes (ppr m <> hscOptionQual <> text "o")
+
+-- Emit a P/Invoke declaration for the imported C function
+-- TODO: emit the right DLL name
+ilxImportCCall :: IlxEnv -> StaticCCallInfo -> SDoc
+ilxImportCCall env (c,cc,args,ret) =
+ text ".method static assembly pinvokeimpl" <+>
+ parens (doubleQuotes (text "HSstd_cbits.dll") <+> text "cdecl") <+> retdoc <+> singleQuotes (pprCLabelString c) <+>
+ pprCValArgTys ilxTypeL env (map deepIlxRepType (filter (not. isVoidIlxRepType) args)) <+>
+ text "unmanaged preservesig { }"
+ where
+ retdoc =
+ if isVoidIlxRepType ret then text "void"
+ else ilxTypeR env (deepIlxRepType ret)
+
+
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{Type declarations}
+%* *
+%************************************************************************
+
+\begin{code}
+
+
+ilxTyCon :: IlxEnv -> TyCon -> SDoc
+ilxTyCon env tycon = ilxTyConDef False env tycon
+
+-- filter to get only dataTyCons?
+ilxTyConDef importing env tycon =
+ vcat [empty $$ line,
+ text ".classunion" <+> (if importing then text "import" else empty) <+> tycon_ref <+> tyvars_text <+> super_text <+> alts_text]
+ where
+ tycon_ref = nameReference env (getName tycon) <> (ppr tycon)
+ super_text = if importing then empty else text "extends thunk" <> angleBrackets (text "class" <+> tycon_ref)
+ tyvars = tyConTyVars tycon
+ (ilx_tvs, _) = categorizeTyVars tyvars
+ alts_env = extendIlxEnvWithFormalTyVars env ilx_tvs
+ tyvars_text = pprTyVarBinders alts_env ilx_tvs
+ alts = vcat (map (pprIlxDataCon alts_env) (tyConDataCons tycon))
+ alts_text = nest 2 (braces alts)
+
+pprIlxDataCon env dcon =
+ text ".alternative" <+> pprId dcon <+>
+ parens (pprSepWithCommas (ilxTypeL env) (map deepIlxRepType (filter (not. isVoidIlxRepType) (dataConRepArgTys dcon))))
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{Getting the .closures and literals out} *
+%************************************************************************
+
+\begin{code}
+
+ilxBindClosures :: IlxEnv -> StgBinding -> SDoc
+ilxBindClosures env (StgNonRec _ b rhs) = ilxRhsClosures env (b,rhs)
+ilxBindClosures env (StgRec _ pairs)
+ = vcat (map (ilxRhsClosures new_env) pairs)
+ where
+ new_env = extendIlxEnvWithBinds env pairs
+
+---------------
+ilxRhsClosures _ (_, StgRhsCon _ _ _)
+ = empty
+
+ilxRhsClosures env (bndr, StgRhsClosure _ _ fvs upd args rhs)
+ = vcat [ilxExprClosures next_env rhs,
+
+ empty $$ line,
+ kind_text <+> singleQuotes cloname <+> free_vs_text,
+ nest 2 (braces (
+ nest 2 (vcat [empty,
+ vcat [text ".apply" <+> closure_sig_text,
+ body_text
+ ],
+ empty
+ ])
+ ))
+ ]
+ where
+ kind_of_thing = case upd of
+ Updatable -> ASSERT( null args ) ".thunk"
+ otherwise -> ".closure"
+ kind_text = text kind_of_thing
+
+ cloname = ilxEnvQualifyByModule env (ppr bndr)
+ next_env = ilxPlaceStgRhsClosure env bndr
+ (free_vs_text,env_with_fvs) = pprFreeBinders next_env fvs
+
+
+ closure_sig_text =
+ vcat [ text "()",
+ (case args of
+ [] -> empty
+ otherwise -> args_text),
+ text "-->" <+> rty_text]
+
+ (args_text,env_with_args) = pprArgBinders env_with_fvs args
+
+ -- Find the type returned, from the no. of args and the type of "bndr"
+ rty_text =
+ case retType env_with_fvs (idIlxRepType bndr) args of
+ Just (env,ty) ->
+ if isVoidIlxRepType ty then (text "void")
+ else ilxTypeR env ty
+ Nothing -> trace "WARNING! IlxGen.trace could not find return type - see generated ILX for context where this occurs." (text "// Could not find return type:" <+> ilxTypeR env_with_fvs (idIlxRepType bndr)<+> text ", non representation: " <+> ilxTypeR env_with_fvs (idType bndr))
+
+ -- strip off leading ForAll and Fun type constructions
+ -- up to the given number of arguments, extending the environment as
+ -- we go.
+ retType env ty [] = Just (env, ty)
+ retType env (ForAllTy tv ty) (arg:args) = retType (extendIlxEnvWithTyArgs env [tv]) ty args
+ retType env (FunTy l r) (arg:args) = retType env r args
+ retType _ _ _ = Nothing
+
+ -- Code for the local variables
+ locals = ilxExprLocals env_with_args rhs
+
+ env_with_locals = extendIlxEnvWithLocals env_with_args locals
+
+ -- Code for the body of the main apply method
+ body_code = vcat [empty,
+ pprIlxLocals env_with_args locals,
+ ilxExpr (IlxEEnv env_with_locals (mkUniqSet (filter (not.isTyVar) args))) rhs Return,
+ empty
+ ]
+
+ body_text = nest 2 (braces (text ".maxstack 100" <+> nest 2 body_code))
+
+
+pprIlxLocals env [] = empty
+pprIlxLocals env vs
+ = text ".locals" <+> parens (pprSepWithCommas (pprIlxLocal env) (filter nonVoidLocal vs))
+ where
+ nonVoidLocal (LocalId v,_) = not (isVoidIlxRepId v)
+ nonVoidLocal _ = True
+
+pprIlxLocal env (LocalId v,_) = ilxTypeL env (idIlxRepType v) <+> pprId v
+pprIlxLocal env (LocalSDoc (ty,doc,pin),_) = ilxTypeL env (deepIlxRepType ty) <+> (if pin then text "pinned" else empty) <+> doc
+
+
+pprFreeBinders env fvs
+ = (ilx_tvs_text <+> vs_text, env2)
+ where
+ (free_ilx_tvs, _,free_vs) = categorizeVars fvs
+ real_free_vs = filter (not . isVoidIlxRepId) free_vs
+ -- ignore the higher order type parameters for the moment
+ env1 = extendIlxEnvWithFreeTyVars env free_ilx_tvs
+ ilx_tvs_text = pprTyVarBinders env1 free_ilx_tvs
+ vs_text = parens (pprSepWithCommas ppr_id real_free_vs)
+ ppr_id v = ilxTypeL env1 (idIlxRepType v) <+> pprId v
+ env2 = extendIlxEnvWithFreeVars env1 real_free_vs
+
+pprIdBinder env v = parens (ilxTypeL env (idIlxRepType v) <+> pprId v)
+
+ -- Declarations for the arguments of the main apply method
+pprArgBinders env [] = (empty,env)
+pprArgBinders env (arg:args)
+ = (arg_text <+> rest_text, res_env)
+ where
+ (arg_text,env') = pprArgBinder env arg
+ (rest_text,res_env) = pprArgBinders env' args
+
+-- We could probably omit some void argument binders, but
+-- don't...
+pprArgBinder env arg
+ | isVoidIlxRepId arg = (text "()", extendIlxEnvWithArgs env [arg])
+ | otherwise
+ = if isTyVar arg then
+ let env' = extendIlxEnvWithTyArgs env [arg] in
+ (pprTyVarBinder env' arg, env')
+ else (pprIdBinder env arg,extendIlxEnvWithArgs env [arg])
+
+--------------
+-- Compute local variables used by generated method.
+-- The names of some generated locals are recorded as SDocs.
+
+data LocalSpec = LocalId Id | LocalSDoc (Type, SDoc, Bool) -- flag is for pinning
+
+ilxExprLocals :: IlxEnv -> StgExpr -> [(LocalSpec,Maybe (IlxEnv,StgRhs))]
+ilxExprLocals env (StgLet bind body) = ilxBindLocals env bind ++ ilxExprLocals env body
+ilxExprLocals env (StgLetNoEscape _ _ bind body) = ilxBindLocals env bind ++ ilxExprLocals env body -- TO DO????
+ilxExprLocals env (StgCase scrut _ _ bndr _ alts)
+ = ilxExprLocals (ilxPlaceStgCaseScrut env) scrut ++
+ (if isDeadBinder bndr then [] else [(LocalId bndr,Nothing)]) ++
+ ilxAltsLocals env alts
+ilxExprLocals env (StgOpApp (StgFCallOp fcall _) args _)
+ = concat (ilxMapPlaceArgs 0 ilxCCallArgLocals env args)
+ilxExprLocals _ _ = []
+
+-- Generate locals to use for pinning arguments as we cross the boundary
+-- to C.
+ilxCCallArgLocals env (StgVarArg v) | pinCCallArg v =
+ [(LocalSDoc (idType v, ilxEnvQualifyByExact env (ppr v) <> text "pin", True), Nothing)]
+ilxCCallArgLocals _ _ | otherwise = []
+
+ilxBindLocals env (StgNonRec _ b rhs) = [(LocalId b,Just (env, rhs))]
+ilxBindLocals env (StgRec _ pairs) = map (\(x,y) -> (LocalId x,Just (env, y))) pairs
+
+ilxAltsLocals env (StgAlgAlts _ alts deflt) = ilxDefltLocals env deflt ++ concat (ilxMapPlaceAlts ilxAlgAltLocals env alts)
+ilxAltsLocals env (StgPrimAlts _ alts deflt) = ilxDefltLocals env deflt ++ concat (ilxMapPlaceAlts ilxPrimAltLocals env alts)
+
+ilxAlgAltLocals env (_, bndrs, _, rhs) = map (\x -> (LocalId x,Nothing)) (filter (\v -> isId v && not (isDeadBinder v)) bndrs) ++ ilxExprLocals env rhs
+ilxPrimAltLocals env (_, rhs) = ilxExprLocals env rhs
+
+ilxDefltLocals _ StgNoDefault = []
+ilxDefltLocals env (StgBindDefault rhs) = ilxExprLocals (ilxPlaceStgBindDefault env) rhs
+
+--------------
+ilxExprClosures :: IlxEnv -> StgExpr -> SDoc
+ilxExprClosures env (StgApp _ args)
+ = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
+ilxExprClosures env (StgConApp _ args)
+ = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
+ilxExprClosures env (StgOpApp _ args _)
+ = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
+ilxExprClosures env (StgLet bind body)
+ = ilxBindClosures env bind $$ ilxExprClosures (extendIlxEnvWithBinds env (ilxPairs1 bind)) body
+ilxExprClosures env (StgLetNoEscape _ _ bind body) -- TO DO????
+ = ilxBindClosures env bind $$ ilxExprClosures (extendIlxEnvWithBinds env (ilxPairs1 bind)) body
+ilxExprClosures env (StgCase scrut _ _ _ _ alts)
+ = ilxExprClosures (ilxPlaceStgCaseScrut env) scrut $$ ilxAltsClosures env alts
+ilxExprClosures env (StgLit lit)
+ = ilxGenLit env lit
+ilxExprClosures _ _
+ = empty
+
+ilxAltsClosures env (StgAlgAlts _ alts deflt)
+ = vcat [ilxExprClosures (ilxPlaceAlt env i) rhs | (i,(_, _, _, rhs)) <- [1..] `zip` alts]
+ $$
+ ilxDefltClosures env deflt
+
+ilxAltsClosures env (StgPrimAlts _ alts deflt)
+ = vcat [ilxExprClosures (ilxPlaceAlt env i) rhs | (i,(_, rhs)) <- [1..] `zip` alts]
+ $$
+ vcat [ ilxGenLit (ilxPlacePrimAltLit env i) lit | (i,(lit,_)) <- [1..] `zip` alts]
+ $$
+ ilxDefltClosures env deflt
+
+ilxDefltClosures env (StgBindDefault rhs) = ilxExprClosures (ilxPlaceStgBindDefault env) rhs
+ilxDefltClosures _ StgNoDefault = empty
+
+ilxArgClosures env (StgLitArg lit) = ilxGenLit env lit
+ilxArgClosures _ _ = empty
+
+
+
+ilxGenLit env (MachStr fs)
+ = vcat [text ".field static assembly char " <+> singleQuotes nm <+> text "at" <+> nm <> text "L",
+ text ".data" <+> nm <> text "L" <+> text "= char *(" <> pprFSInILStyle fs <> text ")"
+ ]
+ where
+ nm = ilxEnvQualifyByExact env (text "string")
+
+ilxGenLit _ _ = empty
+
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{Generating code}
+%* *
+%************************************************************************
+
+
+\begin{code}
+
+-- Environment when generating expressions
+data IlxEEnv = IlxEEnv IlxEnv (UniqSet Id)
+
+data Sequel = Return | Jump IlxLabel
+
+ilxSequel Return = text "ret"
+ilxSequel (Jump lbl) = text "br" <+> pprIlxLabel lbl
+
+isReturn Return = True
+isReturn (Jump _) = False
+
+
+ilxExpr :: IlxEEnv -> StgExpr
+ -> Sequel -- What to do at the end
+ -> SDoc
+
+ilxExpr (IlxEEnv env _) (StgApp fun args) sequel
+ = ilxFunApp env fun args (isReturn sequel) $$ ilxSequel sequel
+
+-- ilxExpr eenv (StgLit lit) sequel
+ilxExpr (IlxEEnv env _) (StgLit lit) sequel
+ = pushLit env lit $$ ilxSequel sequel
+
+-- ilxExpr eenv (StgConApp data_con args) sequel
+ilxExpr (IlxEEnv env _) (StgConApp data_con args) sequel
+ = text " /* ilxExpr:StgConApp */ " <+> ilxConApp env data_con args $$ ilxSequel sequel
+
+-- ilxExpr eenv (StgPrimApp primop args _) sequel
+ilxExpr (IlxEEnv env _) (StgOpApp (StgFCallOp fcall _) args ret_ty) sequel
+ = ilxFCall env fcall args ret_ty $$ ilxSequel sequel
+
+ilxExpr (IlxEEnv env _) (StgOpApp (StgPrimOp primop) args ret_ty) sequel
+ = ilxPrimOpTable primop args env $$ ilxSequel sequel
+
+--BEGIN TEMPORARY
+-- The following are versions of a peephole optimizations for "let t = \[] t2[fvs] in t"
+-- I think would be subsumed by a general treatmenet of let-no-rec bindings??
+ilxExpr eenv@(IlxEEnv env _) (StgLet (StgNonRec _ bndr (StgRhsClosure _ _ _ _ [] rhs)) (StgApp fun [])) sequel
+ | (bndr == fun && null (ilxExprLocals env rhs)) -- TO DO???
+ = ilxExpr eenv rhs sequel
+ilxExpr eenv@(IlxEEnv env _) (StgLetNoEscape _ _ (StgNonRec _ bndr (StgRhsClosure _ _ _ _ [] rhs)) (StgApp fun [])) sequel
+ | (bndr == fun && null (ilxExprLocals env rhs)) -- TO DO???
+ = ilxExpr eenv rhs sequel
+--END TEMPORARY
+
+ilxExpr eenv (StgLet bind body) sequel
+ = ilxBind eenv bind $$ ilxExpr eenv body sequel
+
+
+ilxExpr eenv (StgLetNoEscape _ _ bind body) sequel -- TO DO???
+ = ilxBind eenv bind $$ ilxExpr eenv body sequel
+
+-- StgCase: Special case 1 to avoid spurious branch.
+ilxExpr eenv@(IlxEEnv env live) (StgCase (StgApp fun args) live_in_case _live_in_alts bndr _ alts) sequel
+ = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
+ ilxFunApp (ilxPlaceStgCaseScrut env) fun args False,
+ --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` _live_in_alts)),
+ --ilxAlts (IlxEEnv env _live_in_alts) bndr alts sequel
+ ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
+ ]
+
+-- StgCase: Special case 2 to avoid spurious branch.
+ilxExpr eenv@(IlxEEnv env live) (StgCase (StgOpApp (StgPrimOp primop) args ret_ty) live_in_case _live_in_alts bndr _ alts) sequel
+ = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
+ ilxPrimOpTable primop args (ilxPlaceStgCaseScrut env),
+ --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` _live_in_alts)),
+ --ilxAlts (IlxEEnv env _live_in_alts) bndr alts sequel
+ ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
+ ]
+
+-- StgCase: Normal case.
+ilxExpr eenv@(IlxEEnv env live) (StgCase scrut live_in_case _live_in_alts bndr _ alts) sequel
+ = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
+ ilxExpr (IlxEEnv (ilxPlaceStgCaseScrut env) live_in_case) scrut (Jump join_lbl),
+ ilxLabel join_lbl,
+ --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` _live_in_alts)),
+ --ilxAlts (IlxEEnv env _live_in_alts) bndr alts sequel
+ ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
+ ]
+ where
+ join_lbl = mkJoinLabel bndr
+
+ilxExpr _ _ _
+ = panic "ilxExpr: Patterns not matched:(IlxEEnv _ _) (StgSCC _ _) _ (IlxEEnv _ _) (StgLam _ _ _) _"
+
+
+-- Wipe out locals and arguments that are no longer in use, to
+-- prevent space leaks. If the VM is implemented 100% correctly then
+-- this should probably not be needed, as the live variable analysis
+-- in the JIT would tell the GC that these locals and arguments are
+-- no longer live. However I'm putting it in here so we can
+-- check out if it helps.
+--
+-- Also, in any case this doesn't capture everything we need. e.g.
+-- when making a call:
+-- case f x of ...
+-- where x is not used in the alternatives, then the variable x
+-- is no longer live from the point it is transferred to the call
+-- onwards. We should expunge "live_in_case - live_in_alts" right
+-- before making the call, not after returning from the call....
+--
+-- Strictly speaking we also don't need to do this for primitive
+-- values such as integers and addresses, i.e. things not
+-- mapped down to GC'able objects.
+ilxWipe env ids
+ = vcat (map (ilxWipeOne env) (filter (not.isVoidIlxRepId) ids))
+
+ilxWipeOne env id
+ = case lookupIlxVarEnv env id of
+ Just Local -> text "ldloca " <+> pprId id <+> text "initobj.any" <+> (ilxTypeL env (idIlxRepType id))
+ Just Arg -> text "deadarg " <+> pprId id <+> text "," <+> (ilxTypeL env (idIlxRepType id))
+ Just (CloVar _) -> ilxComment (text "not yet wiping closure variable" <+> pprId id )
+ _ -> ilxComment (text "cannot wipe non-local/non-argument" <+> pprId id )
+ where
+
+
+----------------------
+
+ilxAlts :: IlxEEnv -> Id -> StgCaseAlts -> Sequel -> SDoc
+ilxAlts (IlxEEnv env live) bndr alts sequel
+ -- At the join label, the result is on top
+ -- of the stack
+ = vcat [store_in_bndr,
+ do_case_analysis alts
+ ]
+ where
+ scrut_rep_ty = deepIlxRepType (idType bndr)
+
+ store_in_bndr | isDeadBinder bndr = empty
+ | isVoidIlxRepId bndr
+ = ilxComment (text "ignoring store of zero-rep value to be analyzed")
+ | otherwise = text "dup" $$ (text "stloc" <+> pprId bndr)
+
+ do_case_analysis (StgAlgAlts _ [] deflt)
+ = do_deflt deflt
+
+ do_case_analysis (StgAlgAlts _ args deflt)
+ = do_alg_alts ([1..] `zip` args) deflt
+
+ do_case_analysis (StgPrimAlts _ alts deflt)
+ = do_prim_alts ([1..] `zip` alts) $$ do_deflt deflt
+
+ do_alg_alts [(i, alt@(data_con,bndrs,used_flags, rhs))] StgNoDefault | isUnboxedTupleCon data_con
+ -- Collapse the analysis of unboxed tuples where
+ -- some or all elements are zero-sized
+ --
+ -- TO DO: add bndrs to set of live variables
+ = case bndrs' of
+ [h] -> bind_collapse bndrs used_flags <+> do_rhs_no_pop alt_env rhs
+ _ -> bind_components alt_env dcon' bndrs 0 used_flags <+> do_rhs alt_env rhs
+ where
+ bndrs' = filter (not. isVoidIlxRepId) bndrs
+ -- Replacement unboxed tuple type constructor, used if any of the
+ -- arguments have zero-size and more than one remains.
+ dcon' = tupleCon Unboxed (length bndrs')
+
+ alt_env = IlxEEnv (ilxPlaceAlt env i) live
+ --alt_env = IlxEEnv (ilxPlaceAlt env i)
+
+ bind_collapse [] _ = panic "bind_collapse: unary element not found"
+ bind_collapse (h:t) (is_used:used_flags)
+ | isVoidIlxRepId h = ilxComment (text "zero-rep binding eliminated") <+> (bind_collapse t used_flags)
+ | not is_used = ilxComment (text "not used") <+> text "pop"
+ | otherwise = text "stloc" <+> pprId h
+
+
+ do_alg_alts [(i, alt@(data_con,bndrs,used_flags, rhs))] StgNoDefault
+ = vcat [text "castdata" <+> sep [ilxTypeR env scrut_rep_ty <> comma,
+ ilxConRef env data_con],
+ do_alg_alt (IlxEEnv (ilxPlaceAlt env i) live) alt
+ ]
+
+ do_alg_alts alts deflt
+ = vcat [text "datacase" <+> sep [ilxTypeR env scrut_rep_ty,text ",",
+ pprSepWithCommas pp_case labels_w_alts],
+ do_deflt deflt,
+ vcat (map do_labelled_alg_alt labels_w_alts)
+ ]
+ where
+ pp_case (i, (lbl, (data_con, _, _, _))) = parens (ilxConRef env data_con <> comma <> pprIlxLabel lbl)
+ labels_w_alts = [(i,(mkAltLabel bndr i, alt)) | (i, alt) <- alts]
+
+ do_prim_alts [] = empty
+ do_prim_alts ((i, (lit,alt)) : alts)
+ = vcat [text "dup", pushLit (ilxPlacePrimAltLit env i) lit, text "bne.un" <+> pprIlxLabel lbl,
+ do_rhs (IlxEEnv (ilxPlaceAlt env i) live) alt,
+ ilxLabel lbl, do_prim_alts alts]
+ where
+ lbl = mkAltLabel bndr i
+
+ do_labelled_alg_alt (i,(lbl, alt))
+ = ilxLabel lbl $$ do_alg_alt (IlxEEnv (ilxPlaceAlt env i) live) alt
+
+ do_alg_alt alt_eenv (data_con, bndrs, used_flags, rhs)
+ = vcat [bind_components alt_eenv data_con bndrs 0 used_flags,
+ do_rhs alt_eenv rhs
+ ]
+
+ bind_components alt_eenv data_con [] n _ = empty
+ bind_components alt_eenv data_con (h:t) n (is_used:used_flags)
+ | isVoidIlxRepId h
+ -- don't increase the count in this case
+ = ilxComment (text "zero-rep binding eliminated")
+ <+> bind_components alt_eenv data_con t n used_flags
+ | otherwise
+ = bind_component alt_eenv data_con h is_used n
+ <+> bind_components alt_eenv data_con t (n + 1) used_flags
+
+ bind_component alt_eenv@(IlxEEnv alt_env _) data_con bndr is_used reduced_fld_no
+ | not is_used
+ = ilxComment (text "not used")
+ | isVoidIlxRepId bndr
+ = ilxComment (text "ignoring bind of zero-rep variable")
+ | otherwise = vcat [text "dup",
+ ld_data alt_env data_con reduced_fld_no bndr,
+ text "stloc" <+> pprId bndr]
+
+ do_deflt (StgBindDefault rhs) = do_rhs (IlxEEnv (ilxPlaceStgBindDefault env) live) rhs
+ do_deflt StgNoDefault = empty
+
+ do_rhs alt_eenv rhs
+ | isVoidIlxRepId bndr = do_rhs_no_pop alt_eenv rhs -- void on the stack, nothing to pop
+ | otherwise = text "pop" $$ do_rhs_no_pop alt_eenv rhs -- drop the value
+
+ do_rhs_no_pop alt_env rhs = ilxExpr alt_env rhs sequel
+
+ ld_data alt_env data_con reduced_fld_no bndr
+ | isUnboxedTupleCon data_con
+ = text "ldfld" <+> sep [text "!" <> integer reduced_fld_no,
+ ilxTypeR alt_env scrut_rep_ty <> text "::fld" <> integer reduced_fld_no]
+ | otherwise
+ = text "lddata" <+> sep [ilxTypeR alt_env scrut_rep_ty <> comma,
+ ilxConRef env data_con <> comma,
+ integer reduced_fld_no]
+
+
+-------------------------
+
+ilxBestTermArity = 3
+ilxBestTypeArity = 7
+
+
+-- Constants of unlifted types are represented as
+-- applications to no arguments.
+ilxFunApp env fun [] _ | isUnLiftedType (idType fun)
+ = pushId env fun
+
+ilxFunApp env fun args tail_call
+ = -- For example:
+ -- ldloc f function of type forall a. a->a
+ -- ldloc x arg of type Int
+ -- .tail callfunc <Int32> (!0) --> !0
+ --
+ vcat [pushId env fun,ilxFunAppAfterPush env fun args tail_call]
+
+ilxFunAppAfterPush env fun args tail_call
+ = -- For example:
+ -- ldloc f function of type forall a. a->a
+ -- ldloc x arg of type Int
+ -- .tail callfunc <Int32> (!0) --> !0
+ --
+ vcat [ilxFunAppArgs env 0 (idIlxRepType fun) args tail_call known_clo]
+ where
+ known_clo :: KnownClosure
+ known_clo =
+ case lookupIlxBindEnv env fun of
+ Just (_, StgRhsClosure _ _ _ Updatable _ _) -> Nothing
+ Just (place, StgRhsClosure _ _ fvs _ args _) -> Just (place,fun,args,fvs)
+ _ -> Nothing -- trace (show fun ++ " --> " ++ show (idArity fun))
+
+type KnownClosure = Maybe ( IlxEnv -- Of the binding site of the function
+ , Id -- The function
+ , [Var] -- Binders
+ , [Var]) -- Free vars of the closure
+
+-- Push as many arguments as ILX allows us to in one go, and call the function
+-- Recurse until we're done.
+-- The function is already on the stack
+ilxFunAppArgs :: IlxEnv
+ -> Int -- Number of args already pushed (zero is a special case;
+ -- otherwise used only for place generation)
+ -> Type -- Type of the function
+ -> [StgArg] -- The arguments
+ -> Bool -- True <=> tail call please
+ -> KnownClosure -- Information about the function we're calling
+ -> SDoc
+
+ilxFunAppArgs env num_sofar funty args tail_call known_clo
+ = vcat [vcat (ilxMapPlaceArgs num_sofar pushArgWithVoids env now_args),
+ call_instr <+> (if num_sofar == 0 then text "() /* first step in every Haskell app. is to a thunk */ " else empty)
+ <+> now_args_text
+ <+> text "-->"
+ <+> later_ty_text,
+ later
+ ]
+ where
+ now_args_text =
+ case now_arg_tys of
+ [] -> empty
+ _ -> hsep (map (pprIlxArgInfo env_after_now_tyvs) now_arg_tys)
+
+ later_ty_text
+ | isVoidIlxRepType later_ty = text "void"
+ | otherwise = ilxTypeR env_after_now_tyvs later_ty
+
+ (now_args,now_arg_tys,env_after_now_tyvs,later_args,later_ty) =
+ case args of
+ (StgTypeArg v:rest) -> get_type_args ilxBestTypeArity args env funty
+ _ -> get_term_args 0 ilxBestTermArity args env funty
+
+ -- Only apply up to maxArity real (non-type) arguments
+ -- at a time. ILX should, in principle, allow us to apply
+ -- arbitrary numbers, but you will get more succinct
+ -- (and perhaps more efficient) IL code
+ -- if you apply in clumps according to its maxArity setting.
+ -- This is because it has to unwind the stack and store it away
+ -- in local variables to do the partial applications.
+ --
+ -- Similarly, ILX only allows one type application at a time, at
+ -- least until we implement unwinding the stack for this case.
+ --
+ -- NB: In the future we may have to be more careful
+ -- all the way through
+ -- this file to bind type variables as we move through
+ -- type abstractions and "forall" types. This would apply
+ -- especially if the type variables were ever bound by expressions
+ -- involving the type variables.
+
+ -- This part strips off at most "max" term applications or one type application
+ get_type_args 0 args env funty = ([],[],env,args,funty)
+ get_type_args max args env (NoteTy _ ty) =
+ trace "IlxGen Internal Error: non representation type passed to get_args" (get_type_args max args env ty)
+ get_type_args max ((arg@(StgTypeArg v)):rest) env (ForAllTy tv rem_funty)
+ = if isIlxTyVar tv then
+ let env2 = extendIlxEnvWithFormalTyVars env [tv] in
+ let rest_ty = deepIlxRepType (substTyWith [tv] [v] rem_funty) in
+ let (now,now_tys,env3,later,later_ty) = get_type_args (max - 1) rest env rest_ty in
+ let arg_ty = mkTyVarTy tv in
+ (arg:now,(arg,arg_ty):now_tys,env2, later, later_ty)
+ else
+ get_type_args max rest env rem_funty -- ? subst??
+ get_type_args _ (StgTypeArg _:_) _ _ = trace "IlxGen Internal Error: get_type_args could not get ForAllTy for corresponding arg" ([],[],env,[],funty)
+ get_type_args _ args env funty = ([],[],env,args,funty)
+
+ get_term_args n max args env (NoteTy _ ty)
+ -- Skip NoteTy types
+ = trace "IlxGen Internal Error: non representation type passed to get_term_args" (get_term_args n max args env ty)
+ get_term_args n 0 args env funty
+ -- Stop if we've hit the maximum number of ILX arguments to apply n one hit.
+ = ([],[],env,args,funty)
+ get_term_args n max args env funty
+ | (case known_clo of
+ Just (_,_,needed,_) -> needed `lengthIs` n
+ Nothing -> False)
+ -- Stop if we have the optimal number for a direct call
+ = ([],[],env,args,funty)
+ get_term_args _ _ (args@(StgTypeArg _:_)) env funty
+ -- Stop if we hit a type arg.
+ = ([],[],env,args,funty)
+ get_term_args n max (h:t) env (FunTy dom ran)
+ -- Take an argument.
+ = let (now,now_tys,env2,later,later_ty) = get_term_args (n+1) (max - 1) t env ran in
+ (h:now, (h,dom):now_tys,env2,later,later_ty)
+ get_term_args _ max (h:t) env funty = trace "IlxGen Internal Error: get_term_args could not get FunTy or ForAllTy for corresponding arg" ([],[],env,[],funty)
+ get_term_args _ max args env funty = ([],[],env,args,funty)
+
+ -- Are there any remaining arguments?
+ done = case later_args of
+ [] -> True
+ _ -> False
+
+ -- If so, generate the subsequent calls.
+ later = if done then text "// done"
+ else ilxFunAppArgs env (num_sofar + length now_args) later_ty later_args tail_call Nothing
+
+ -- Work out whether to issue a direct call a known closure (callclo) or
+ -- an indirect call (callfunc). Basically, see if the identifier has
+ -- been let-bound, and then check we are applying exactly the right
+ -- number of arguments. Also check that it's not a thunk (actually, this
+ -- is done up above).
+ --
+ -- The nasty "all" check makes sure that
+ -- the set of type variables in scope at the callsite is a superset
+ -- of the set of type variables needed for the direct call. This is
+ -- is needed because not all of the type variables captured by a
+ -- let-bound binding will get propogated down to the callsite, and
+ -- the ILX system of polymorphism demands that the free type variables
+ -- get reapplied when we issue the direct "callclo". The
+ -- type variables are in reality also "bound up" in the closure that is
+ -- passed as the first argument, so when we do an indirect call
+ -- to that closure we're fine, which is why we don't need them in
+ -- the "callfunc" case.
+ basic_call_instr =
+ case known_clo of
+ Just (known_env,fun,needed,fvs) | (equalLength needed now_args) &&
+ all (\x -> elemIlxTyEnv x env) free_ilx_tvs ->
+ vcat [text "callclo class",
+ nameReference env (idName fun) <+> singleQuotes (ilxEnvQualifyByModule env (ppr fun)),
+ pprTypeArgs ilxTypeR env (map mkTyVarTy free_ilx_tvs)]
+ <> text ","
+ where
+ (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
+ otherwise -> text "callfunc"
+ call_instr =
+ if (tail_call && done) then text "tail." <+> basic_call_instr
+ else basic_call_instr
+
+
+--------------------------
+-- Print the arg info at the call site
+-- For type args we are, at the moment, required to
+-- give both the actual and the formal (bound). The formal
+-- bound is always System.Object at the moment (bounds are
+-- not properly implemented in ILXASM in any case, and nor do
+-- we plan on making use og them) For
+-- non-type args the actuals are on the stack, and we just give the
+-- formal type.
+pprIlxArgInfo env (StgTypeArg arg,ty) =
+ angleBrackets (ilxTypeR env (deepIlxRepType arg) <+> ilxComment (text "actual for tyvar")) <+> text "<class [mscorlib] System.Object>"
+pprIlxArgInfo env (_,ty) =
+ parens (ilxTypeL env ty)
+
+
+----------------------------
+-- Code for a binding
+ilxBind :: IlxEEnv -> StgBinding -> SDoc
+ilxBind eenv@(IlxEEnv env _) bind =
+ vcat [vcat (map (ilxRhs env rec) pairs),
+ vcat (map (ilxFixupRec env rec) pairs)]
+ where
+ rec = ilxRecIds1 bind
+ pairs = ilxPairs1 bind
+
+
+----------------------------
+-- Allocate a closure or constructor. Fix up recursive definitions.
+ilxRhs :: IlxEnv -> [Id] -> (Id, StgRhs) -> SDoc
+
+ilxRhs env rec (bndr, _) | isVoidIlxRepId bndr
+ = empty
+
+ilxRhs env rec (bndr, StgRhsCon _ con args)
+ = vcat [text " /* ilxRhs:StgRhsCon */ " <+> ilxConApp env con args,
+ text "stloc" <+> pprId bndr
+ ]
+
+ilxRhs env rec (bndr, StgRhsClosure _ _ fvs upd args rhs)
+ = -- Assume .closure v<any A>(int64,!A) {
+ -- .apply <any B> (int32) (B) { ... }
+ -- }
+ -- Then
+ -- let v = \B (x:int32) (y:B). ...
+ -- becomes:
+ -- newclo v<int32>(int64,!0)
+ -- stloc v
+ vcat [vcat (map pushFv free_vs),
+ (if null free_non_ilx_tvs then empty else (ilxComment (text "ignored some higher order type arguments in application - code will be non-verifiable"))),
+ text "newclo" <+> clotext,
+ text "stloc" <+> pprId bndr
+ ]
+ where
+ pushFv id = if elem id rec then text "ldnull" else pushId env id
+ (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
+ clotext = pprIlxNamedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs)
+
+ilxFixupRec env rec (bndr, _) | isVoidIlxRepId bndr = ilxComment (text "no recursive fixup for void-rep-id")
+
+ilxFixupRec env rec (bndr, StgRhsCon _ con args)
+ = text "// no recursive fixup"
+
+ilxFixupRec env rec (bndr, StgRhsClosure _ _ fvs upd args rhs)
+ = vcat [vcat (map fixFv rec)]
+ where
+ fixFv recid = if elem recid fvs then
+ vcat [pushId env bndr,
+ pushId env recid,
+ text "stclofld" <+> clotext <> text "," <+> pprId recid]
+ else text "//no fixup needed for" <+> pprId recid
+ (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
+ clotext = pprIlxNamedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs)
+
+
+
+---------------------------------------------
+-- Code for a top-level binding in a module
+ilxPairs binds = concat (map ilxPairs1 binds)
+
+ilxPairs1 (StgNonRec _ bndr rhs) = [(bndr,rhs)]
+ilxPairs1 (StgRec _ pairs) = pairs
+
+ilxRecIds1 (StgNonRec _ bndr rhs) = []
+ilxRecIds1 (StgRec _ pairs) = map fst pairs
+
+---------------------------------------------
+-- Code for a top-level binding in a module
+-- TODO: fix up recursions amongst CAF's
+-- e.g.
+-- x = S x
+-- for infinity...
+--
+-- For the moment I've put in a completely spurious "reverse"...
+--
+-- Consider: make fixing up of CAF's part of ILX? i.e.
+-- put static, constant, allocated datastructures into ILX.
+
+stableSortBy :: (a -> a -> Ordering) -> [a] -> [a]
+stableSortBy f (h:t) = insertBy f h (stableSortBy f t)
+stableSortBy f [] = []
+
+usedBy :: (Id,StgRhs) -> (Id,StgRhs) -> Ordering
+usedBy (m,_) (_,StgRhsCon _ data_con args) | any (isArg m) args = LT
+usedBy (m,_) (n,_) | m == n = EQ
+usedBy (m,_) (_,_) = GT
+
+isArg m (StgVarArg n) = (n == m)
+isArg m _ = False
+
+
+ilxTopBind :: Module -> IlxEnv -> [(Id,StgRhs)] -> SDoc
+--ilxTopBind mod env (StgNonRec _ bndr rhs) =
+--ilxTopRhs env (bndr,rhs)
+ilxTopBind mod env pairs =
+ vcat [text ".class" <+> pprId mod,
+ nest 2 (braces (nest 2 (vcat [empty,cctor, flds, empty])))]
+ where
+ cctor = vcat [text ".method static rtspecialname specialname void .cctor()",
+ nest 2 (braces
+ (nest 2 (vcat [text ".maxstack 100",
+ text "ldstr \"LOG: initializing module" <+> pprId mod <+> text "\" call void ['mscorlib']System.Console::WriteLine(class [mscorlib]System.String)",
+ vcat (map (ilxTopRhs mod env) (stableSortBy usedBy pairs)),
+ text "ldstr \"LOG: initialized module" <+> pprId mod <+> text "\" call void ['mscorlib']System.Console::WriteLine(class [mscorlib]System.String)",
+ text "ret",
+ empty])))]
+ flds = vcat (map (ilxTopRhsStorage mod env) pairs)
+
+--ilxTopRhs mod env (bndr, _) | isVoidIlxRepId bndr
+-- = empty
+
+ilxTopRhs mod env (bndr, StgRhsClosure _ _ fvs upd args rhs)
+ = vcat [vcat (map (pushId env) free_vs),
+ (if null free_non_ilx_tvs then empty else (ilxComment (text "ignored some higher order type arguments in application - code will be non verifiable...."))),
+ text "newclo" <+> pprIlxNamedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs),
+ text "stsfld" <+> pprFieldRef env (mod,bndTy,bndr)
+ ]
+ where
+ (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
+ bndTy = idIlxRepType bndr
+
+ilxTopRhs mod env (bndr, StgRhsCon _ data_con args)
+ = vcat [ text " /* ilxTopRhs: StgRhsCon */ " <+> ilxConApp env data_con args,
+ text "stsfld" <+> pprFieldRef env (mod,bndTy,bndr)
+ ]
+ where
+ bndTy = idIlxRepType bndr
+
+pprFieldRef env (mod,ty,id)
+ = ilxTypeL env ty <+> moduleReference env mod <+> pprId mod <> text "::" <> pprId id
+
+ilxTopRhsStorage mod env (bndr, StgRhsClosure _ _ _ _ _ _)
+ = text ".field public static " <+> ilxTypeL env bndTy <+> pprId bndr
+ where
+ bndTy = idIlxRepType bndr
+ilxTopRhsStorage mod env (bndr, StgRhsCon _ _ _)
+ = text ".field public static " <+> ilxTypeL env bndTy <+> pprId bndr
+ where
+ bndTy = idIlxRepType bndr
+
+--------------------------------------
+-- Push an argument
+pushArgWithVoids = pushArg_aux True
+pushArg = pushArg_aux False
+
+pushArg_aux voids env (StgTypeArg ty) = empty
+pushArg_aux voids env (StgVarArg var) = pushId_aux voids env var
+pushArg_aux voids env (StgLitArg lit) = pushLit env lit
+
+
+mapi f l = mapi_aux f l 0
+
+mapi_aux f [] n = []
+mapi_aux f (h:t) n = f n h : mapi_aux f t (n+1)
+
+--------------------------------------
+-- Push an Id
+pushId = pushId_aux False
+
+pushId_aux :: Bool -> IlxEnv -> Id -> SDoc
+pushId_aux voids _ id | isVoidIlxRepId id =
+ /* if voids then text "ldunit" else */ ilxComment (text "pushId: void rep skipped")
+pushId_aux _ env var
+ = case lookupIlxVarEnv env var of
+ Just Arg -> text "ldarg" <+> pprId var
+ Just (CloVar n) -> text "ldenv" <+> int n
+ Just Local -> text "ldloc" <+> pprId var
+ Just (Top m) ->
+ vcat [ilxComment (text "pushId (Top) " <+> pprId m),
+ text "ldsfld" <+> ilxTypeL env (idIlxRepType var)
+ <+> moduleReference env m <+> pprId (moduleName m) <> text "::" <> pprId var]
+
+ Nothing ->
+ vcat [ilxComment (text "pushId (import) " <+> pprIlxTopVar env var),
+ text "ldsfld" <+> ilxTypeL env (idIlxRepType var)
+ <+> pprIlxTopVar env var]
+
+--------------------------------------
+-- Push a literal
+pushLit env (MachChar c) = text "ldc.i4" <+> int c
+pushLit env (MachStr s) = text "ldsflda char " <+> ilxEnvQualifyByExact env (text "string") -- pprFSInILStyle s
+pushLit env (MachInt i) = text "ldc.i4" <+> integer i
+pushLit env (MachInt64 i) = text "ldc.i8" <+> integer i
+pushLit env (MachWord w) = text "ldc.i4" <+> integer w <+> text "conv.u4"
+pushLit env (MachWord64 w) = text "ldc.i8" <+> integer w <+> text "conv.u8"
+pushLit env (MachFloat f) = text "ldc.r4" <+> rational f
+pushLit env (MachDouble f) = text "ldc.r8" <+> rational f
+pushLit env (MachNullAddr) = text "ldc.i4 0"
+pushLit env (MachLabel l _) = trace "WARNING: Cannot compile MachLabel to ILX in IlxGen.lhs" (text "// MachLabel!!! Not valid in ILX!!")
+
+pprIlxTopVar env v
+ | isExternalName n = (nameReference env n) <> pprId (nameModule n) <> text "::" <> singleQuotes (ppr (nameModule n) <> text "_" <> ppr (nameOccName n))
+ | otherwise = pprId (nameOccName n)
+ where
+ n = idName v
+
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{Printing types}
+%* *
+%************************************************************************
+
+
+\begin{code}
+
+isVoidIlxRepType (NoteTy _ ty) = isVoidIlxRepType ty
+isVoidIlxRepType (TyConApp tc _) | (tyConPrimRep tc == VoidRep) = True
+isVoidIlxRepType (TyConApp tc tys)
+ = isUnboxedTupleTyCon tc && null (filter (not. isVoidIlxRepType) tys)
+isVoidIlxRepType _ = False
+
+isVoidIlxRepId id = isVoidIlxRepType (idType id)
+
+
+
+-- Get rid of all NoteTy and NewTy artifacts
+deepIlxRepType :: Type -> Type
+deepIlxRepType (FunTy l r)
+ = FunTy (deepIlxRepType l) (deepIlxRepType r)
+
+deepIlxRepType ty@(TyConApp tc tys)
+ = -- collapse UnboxedTupleTyCon down when it contains VoidRep types.
+ -- e.g. (# State#, Int#, Int# #) ===> (# Int#, Int# #)
+ if isUnboxedTupleTyCon tc then
+ let tys' = map deepIlxRepType (filter (not. isVoidIlxRepType) tys) in
+ case tys' of
+ [h] -> h
+ _ -> mkTupleTy Unboxed (length tys') tys'
+ else
+ TyConApp tc (map deepIlxRepType tys)
+deepIlxRepType (AppTy f x) = AppTy (deepIlxRepType f) (deepIlxRepType x)
+deepIlxRepType (ForAllTy b ty) = ForAllTy b (deepIlxRepType ty)
+deepIlxRepType (NoteTy _ ty) = deepIlxRepType ty
+deepIlxRepType (PredTy p) = deepIlxRepType (predTypeRep p)
+deepIlxRepType ty@(TyVarTy tv) = ty
+
+idIlxRepType id = deepIlxRepType (idType id)
+
+--------------------------
+-- Some primitive type constructors are not thunkable.
+-- Everything else needs to be marked thunkable.
+ilxTypeL :: IlxEnv -> Type -> SDoc
+
+ilxTypeL env ty | isUnLiftedType ty || isVoidIlxRepType ty = ilxTypeR env ty
+ilxTypeL env ty = text "thunk" <> angleBrackets (ilxTypeR env ty)
+
+
+--------------------------
+-- Print non-thunkable version of type.
+--
+
+ilxTypeR :: IlxEnv -> Type -> SDoc
+ilxTypeR env ty | isVoidIlxRepType ty = text "/* unit skipped */"
+ilxTypeR env ty@(AppTy f _) | isTyVarTy f = ilxComment (text "type app:" <+> pprType ty) <+> (text "class [mscorlib]System.Object")
+ilxTypeR env ty@(AppTy f x) = trace "ilxTypeR: should I be beta reducing types?!" (ilxComment (text "ilxTypeR: should I be beta reducing types?!") <+> ilxTypeR env (applyTy f x))
+ilxTypeR env (TyVarTy tv) = ilxTyVar env tv
+
+-- The following is a special rule for types constructed out of
+-- higher kinds, e.g. Monad f or Functor f.
+--
+-- The code below is not as general as it should be, but as I
+-- have no idea if this approach will even work, I'm going to
+-- just try it out on some simple cases arising from the prelude.
+ilxTypeR env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && null (tyConTyVars tc)
+ = ilxComment (text "what on earth? 2") <+> (ilxTypeR env (TyConApp tc t))
+ilxTypeR env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && not (isIlxTyVar (hd (tyConTyVars tc)))
+ = ilxTypeR env (TyConApp tc t)
+ilxTypeR env (TyConApp tc args) = ilxTyConApp env tc args
+
+ -- nb. the only legitimate place for VoidIlxRepTypes to occur in normalized IlxRepTypes
+ -- is on the left of an arrow
+ -- We could probably eliminate all but a final occurrence of these.
+ilxTypeR env (FunTy arg res)| isVoidIlxRepType res
+ = pprIlxFunTy (ilxTypeL env arg) (text "void")
+ilxTypeR env (FunTy arg res)
+ = pprIlxFunTy (ilxTypeL env arg) (ilxTypeR env res)
+
+ilxTypeR env ty@(ForAllTy tv body_ty) | isIlxTyVar tv
+ = parens (text "forall" <+> pprTyVarBinders env' [tv] <+> nest 2 (ilxTypeR env' body_ty))
+ where
+ env' = extendIlxEnvWithFormalTyVars env [tv]
+
+ilxTypeR env ty@(ForAllTy tv body_ty) | otherwise
+ = ilxComment (text "higher order type var " <+> pprId tv) <+>
+ pprIlxFunTy (text "class [mscorlib]System.Object") (ilxTypeR env body_ty)
+
+ilxTypeR env (NoteTy _ ty)
+ = trace "WARNING! non-representation type given to ilxTypeR: see generated ILX for context where this occurs"
+ (vcat [text "/* WARNING! non-representation type given to ilxTypeR! */",
+ ilxTypeR env ty ])
+
+pprIlxFunTy dom ran = parens (hsep [text "func",parens dom,text "-->", ran])
+
+ilxTyConApp env tcon args =
+ case lookupUFM tyPrimConTable (getUnique tcon) of
+ Just f -> f args env
+ Nothing ->
+ (if isUnboxedTupleTyCon tcon then pprIlxUnboxedTupleTyConApp else pprIlxBoxedTyConApp)
+ env tcon args
+
+pprIlxTyCon env tcon = nameReference env (getName tcon) <> ppr tcon
+pprIlxUnboxedTupleTyConApp env tcon args
+ = text "/* unboxed */ value class" <+> pprIlxTyCon env tcon' <> pprTypeArgs ilxTypeL env non_void
+ where
+ non_void = filter (not . isVoidIlxRepType) args
+ tcon' = dataConTyCon (tupleCon Unboxed (length non_void))
+pprIlxBoxedTyConApp env tcon args
+ = pprIlxNamedTyConApp env (pprIlxTyCon env tcon) args
+pprIlxNamedTyConApp env tcon_text args
+ = text "class" <+> tcon_text <> pprTypeArgs ilxTypeR env args
+
+-- Returns e.g: <Int32, Bool>
+-- Void-sized type arguments are _always_ eliminated, everywhere.
+-- If the type constructor is an unboxed tuple type then it should already have
+-- been adjusted to be the correct constructor.
+pprTypeArgs f env tys = pprTypeArgs_aux f env (filter (not . isVoidIlxRepType) tys)
+
+pprTypeArgs_aux f env [] = empty
+pprTypeArgs_aux f env tys = angleBrackets (pprSepWithCommas (f env) tys)
+
+
+pprTyVarBinders :: IlxEnv -> [TyVar] -> SDoc
+-- Returns e.g: <class [mscorlib]System.Object> <class [mscorlib]System.Object>
+-- plus a new environment with the type variables added.
+pprTyVarBinders env [] = empty
+pprTyVarBinders env tvs = angleBrackets (pprSepWithCommas (pprTyVarBinder_aux env) tvs)
+
+pprTyVarBinder :: IlxEnv -> TyVar -> SDoc
+pprTyVarBinder env tv =
+ if isIlxTyVar tv then
+ angleBrackets (pprTyVarBinder_aux env tv)
+ else
+ ilxComment (text "higher order tyvar" <+> pprId tv <+>
+ text ":" <+> ilxTypeR env (tyVarKind tv)) <+>
+ ilxComment (text "omitted")
+ -- parens (text "class [mscorlib]System.Object" <+> pprId tv)
+
+
+pprTyVarBinder_aux env tv =
+ ilxComment (text "tyvar" <+> pprId tv <+> text ":" <+>
+ ilxTypeR env (tyVarKind tv)) <+>
+ (text "class [mscorlib]System.Object")
+
+-- Only a subset of Haskell types can be generalized using the type quantification
+-- of ILX
+isIlxForAllKind h =
+ ( h `eqKind` liftedTypeKind) ||
+ ( h `eqKind` unliftedTypeKind) ||
+ ( h `eqKind` openTypeKind)
+
+isIlxTyVar v = isTyVar v && isIlxForAllKind (tyVarKind v)
+
+categorizeVars fvs = (ilx_tvs, non_ilx_tvs, vs)
+ where
+ (tvs, vs) = partition isTyVar fvs
+ (ilx_tvs, non_ilx_tvs) = categorizeTyVars tvs
+
+categorizeTyVars tyvs = partition isIlxTyVar tyvs
+
+pprValArgTys ppr_ty env tys = parens (pprSepWithCommas (ppr_ty env) tys)
+
+pprId id = singleQuotes (ppr id)
+
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{IlxEnv}
+%* *
+%************************************************************************
+
+\begin{code}
+type IlxTyEnv = [TyVar]
+emptyIlxTyEnv = []
+
+-- Nb. There is currently no distinction between the kinds of type variables.
+-- We may need to add this to print out correct numbers, esp. for
+-- "forall" types
+extendIlxTyEnvWithFreeTyVars env tyvars = env ++ mkIlxTyEnv tyvars -- bound by .closure x<...> in a closure declared with type parameters
+extendIlxTyEnvWithFormalTyVars env tyvars = env ++ mkIlxTyEnv tyvars -- bound by "forall <...>" in a type
+extendIlxTyEnvWithTyArgs env tyvars = env ++ mkIlxTyEnv tyvars -- bound by "<...>" in a closure implementing a universal type
+
+formalIlxTyEnv tyvars = mkIlxTyEnv tyvars
+mkIlxTyEnv tyvars = [ v | v <- tyvars, isIlxTyVar v ]
+
+data HowBound = Top Module -- Bound in a modules
+ | Arg -- Arguments to the enclosing closure
+ | CloVar Int -- A free variable of the enclosing closure
+ -- The int is the index of the field in the
+ -- environment
+ | Local -- Local let binding
+
+-- The SDoc prints a unique name for the syntactic block we're currently processing,
+-- e.g. Foo_bar_baz when inside closure baz inside closure bar inside module Foo.
+data IlxEnv = IlxEnv (Module, IlxTyEnv, IdEnv HowBound,IdEnv (IlxEnv, StgRhs), Place,Bool)
+type Place = (SDoc,SDoc)
+
+ilxTyVar env tv
+ = go 0 (ilxEnvTyEnv env)
+ where
+ go n []
+ = pprTrace "ilxTyVar" (pprId tv <+> text "tv_env = { "
+ <+> pprSepWithCommas
+ (\x -> pprId x <+> text ":" <+> ilxTypeR env (tyVarKind x))
+ (ilxEnvTyEnv env) <+> text "}")
+ (char '!' <> pprId tv)
+ go n (x:xs)
+ = {- pprTrace "go" (ppr (tyVarName tv) <+> ppr (tyVarName x)) -}
+ (if tyVarName x== tyVarName tv then char '!' <> int n <+> ilxComment (char '!' <> pprId tv)
+ else go (n+1) xs)
+
+emptyIlxEnv :: Bool -> Module -> IlxEnv
+emptyIlxEnv trace mod = IlxEnv (mod, emptyIlxTyEnv, emptyVarEnv, emptyVarEnv, (ppr mod,empty),trace)
+
+nextPlace place sdoc = place <> sdoc
+usePlace place sdoc = place <> sdoc
+
+ilxEnvModule (IlxEnv (m, _, _, _, _,_)) = m
+ilxEnvSetPlace (IlxEnv (m, tv_env, id_env, bind_env, (mod,exact),tr)) sdoc
+ = IlxEnv (m, tv_env, id_env, bind_env, (mod, sdoc),tr)
+ilxEnvNextPlace (IlxEnv (m, tv_env, id_env, bind_env, (mod,exact),tr)) sdoc
+ = IlxEnv (m, tv_env, id_env, bind_env, (mod, nextPlace exact sdoc),tr)
+ilxEnvQualifyByModule (IlxEnv (_, _, _, _,(mod,_),_)) sdoc = usePlace mod sdoc
+ilxEnvQualifyByExact (IlxEnv (_, _, _, _,(mod,exact),_)) sdoc = usePlace mod sdoc <> usePlace exact sdoc
+
+ilxPlaceStgBindDefault env = ilxEnvNextPlace env (text "D")
+ilxPlaceStgRhsClosure env bndr = ilxEnvSetPlace env (ppr bndr) -- binders are already unique
+ilxPlaceStgCaseScrut env = ilxEnvNextPlace env (text "S")
+
+ilxPlaceAlt :: IlxEnv -> Int -> IlxEnv
+ilxPlaceAlt env i = ilxEnvNextPlace env (text "a" <> int i)
+ilxPlacePrimAltLit env i = ilxEnvNextPlace env (text "P" <> int i)
+ilxMapPlaceArgs start f env args = [ f (ilxEnvNextPlace env (text "A" <> int i)) a | (i,a) <- [start..] `zip` args ]
+ilxMapPlaceAlts f env alts = [ f (ilxPlaceAlt env i) alt | (i,alt) <- [1..] `zip` alts ]
+
+extendIlxEnvWithFreeTyVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
+ = IlxEnv (mod, extendIlxTyEnvWithFreeTyVars tv_env tyvars,id_env, bind_env, place,tr)
+
+extendIlxEnvWithFormalTyVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
+ = IlxEnv (mod, extendIlxTyEnvWithFormalTyVars tv_env tyvars,id_env, bind_env, place,tr)
+
+extendIlxEnvWithTyArgs (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
+ = IlxEnv (mod, extendIlxTyEnvWithTyArgs tv_env tyvars,id_env, bind_env, place,tr)
+
+extendIlxEnvWithArgs :: IlxEnv -> [Var] -> IlxEnv
+extendIlxEnvWithArgs (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) args
+ = IlxEnv (mod, extendIlxTyEnvWithTyArgs tv_env [tv | tv <- args, isIlxTyVar tv],
+ extendVarEnvList id_env [(v,Arg) | v <- args, not (isIlxTyVar v)],
+ bind_env, place,tr)
+
+extendIlxEnvWithFreeVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) args
+ = IlxEnv (mod,
+ extendIlxTyEnvWithFreeTyVars tv_env [tv | tv <- args, isIlxTyVar tv],
+ extendVarEnvList id_env (clovs 0 args),
+ bind_env,
+ place,tr)
+ where
+ clovs _ [] = []
+ clovs n (x:xs) = if not (isIlxTyVar x) then (x,CloVar n):clovs (n+1) xs else clovs n xs
+
+extendIlxEnvWithBinds env@(IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) bnds
+ = IlxEnv (mod, tv_env, id_env,
+ extendVarEnvList bind_env [(v,(env,rhs)) | (v,rhs) <- bnds],
+ place,tr)
+
+extendIlxEnvWithLocals (IlxEnv (m, tv_env, id_env, bind_env, p,tr)) locals
+ = IlxEnv (m, tv_env,
+ extendVarEnvList id_env [(v,Local) | (LocalId v,_) <- locals],
+ extendVarEnvList bind_env [(v,(env,rhs)) | (LocalId v,Just (env,rhs)) <- locals],
+ p,tr)
+extendIlxEnvWithTops env@(IlxEnv (m, tv_env, id_env, bind_env, place,tr)) mod binds
+ = IlxEnv (m, tv_env,
+ extendVarEnvList id_env [(bndr,Top mod) | (bndr,rhs) <- binds],
+ extendVarEnvList bind_env [(bndr,(env, rhs)) | (bndr,rhs) <- binds],
+ place,tr)
+
+formalIlxEnv (IlxEnv (m, tv_env, id_env, bind_env, place, tr)) tyvars
+ = IlxEnv (m, formalIlxTyEnv tyvars, id_env, bind_env, place, tr)
+
+ilxEnvTyEnv :: IlxEnv -> IlxTyEnv
+ilxEnvTyEnv (IlxEnv (_, tv_env, _,_,_,_)) = tv_env
+elemIlxTyEnv var env = elem var (ilxEnvTyEnv env )
+elemIlxVarEnv var (IlxEnv (_, _, id_env,_,_,_)) = elemVarEnv var id_env
+lookupIlxVarEnv (IlxEnv (_, _, id_env,_,_,_)) var = lookupVarEnv id_env var
+lookupIlxBindEnv (IlxEnv (_, _, _, bind_env,_,_)) var = lookupVarEnv bind_env var
+
+\end{code}
+
+
+\begin{code}
+type IlxLabel = SDoc
+
+pprIlxLabel lbl = lbl
+
+mkJoinLabel :: Id -> IlxLabel
+mkJoinLabel v = text "J_" <> ppr v
+
+mkAltLabel :: Id -> Int -> IlxLabel
+mkAltLabel v n = text "A" <> int n <> ppr v
+
+ilxLabel :: IlxLabel -> SDoc
+ilxLabel lbl = line $$ (pprIlxLabel lbl <> colon)
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{Local pretty helper functions}
+%* *
+%************************************************************************
+
+\begin{code}
+pprSepWithCommas :: (a -> SDoc) -> [a] -> SDoc
+pprSepWithCommas pp xs = sep (punctuate comma (map pp xs))
+ilxComment pp = text "/*" <+> pp <+> text "*/"
+singleQuotes pp = char '\'' <> pp <> char '\''
+
+line = text "// ----------------------------------"
+
+hscOptionQual = text ".i_"
+
+nameReference env n
+ | isInternalName n = empty
+ | ilxEnvModule env == nameModule n = text ""
+ | isHomeModule (nameModule n) = moduleNameReference (moduleName (nameModule n))
+-- HACK: no Vanilla modules should be around, but they are!! This
+-- gets things working for the scenario "standard library linked as one
+-- assembly with multiple modules + a one module program running on top of this"
+-- Same applies to all other mentions of Vailla modules in this file
+ | isVanillaModule (nameModule n) && not inPrelude = basePackageReference
+ | isVanillaModule (nameModule n) && inPrelude = moduleNameReference (moduleName (nameModule n))
+-- end hack
+ | otherwise = packageReference (modulePackage (nameModule n))
+
+packageReference p = brackets (singleQuotes (ppr p <> hscOptionQual))
+moduleNameReference m = brackets ((text ".module") <+> (singleQuotes (pprModuleName m <> hscOptionQual <> text "o")))
+
+moduleReference env m
+ | ilxEnvModule env == m = text ""
+ | isHomeModule m = moduleNameReference (moduleName m)
+ -- See hack above
+ | isVanillaModule m && not inPrelude = basePackageReference
+ | isVanillaModule m && inPrelude = moduleNameReference (moduleName m)
+ -- end hack
+ | otherwise = packageReference (modulePackage m)
+
+basePackageReference = packageReference basePackage
+inPrelude = basePackage == opt_InPackage
+
+------------------------------------------------
+-- This code is copied from absCSyn/CString.lhs,
+-- and modified to do the correct thing! It's
+-- still a mess though. Also, still have to do the
+-- right thing for embedded nulls.
+
+pprFSInILStyle :: FastString -> SDoc
+pprFSInILStyle fs = doubleQuotes (text (stringToC (unpackFS fs)))
+
+stringToC :: String -> String
+-- Convert a string to the form required by C in a C literal string
+-- Tthe hassle is what to do w/ strings like "ESC 0"...
+stringToC "" = ""
+stringToC [c] = charToC c
+stringToC (c:cs)
+ -- if we have something "octifiable" in "c", we'd better "octify"
+ -- the rest of the string, too.
+ = if (c < ' ' || c > '~')
+ then (charToC c) ++ (concat (map char_to_C cs))
+ else (charToC c) ++ (stringToC cs)
+ where
+ char_to_C c | c == '\n' = "\\n" -- use C escapes when we can
+ | c == '\a' = "\\a"
+ | c == '\b' = "\\b" -- ToDo: chk some of these...
+ | c == '\r' = "\\r"
+ | c == '\t' = "\\t"
+ | c == '\f' = "\\f"
+ | c == '\v' = "\\v"
+ | otherwise = '\\' : (trigraph (ord c))
+
+charToC :: Char -> String
+-- Convert a character to the form reqd in a C character literal
+charToC c = if (c >= ' ' && c <= '~') -- non-portable...
+ then case c of
+ '\'' -> "\\'"
+ '\\' -> "\\\\"
+ '"' -> "\\\""
+ '\n' -> "\\n"
+ '\a' -> "\\a"
+ '\b' -> "\\b"
+ '\r' -> "\\r"
+ '\t' -> "\\t"
+ '\f' -> "\\f"
+ '\v' -> "\\v"
+ _ -> [c]
+ else '\\' : (trigraph (ord c))
+
+trigraph :: Int -> String
+trigraph n
+ = [chr ((n `div` 100) `rem` 10 + ord '0'),
+ chr ((n `div` 10) `rem` 10 + ord '0'),
+ chr (n `rem` 10 + ord '0')]
+
+
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{PrimOps and Constructors}
+%* *
+%************************************************************************
+
+\begin{code}
+----------------------------
+-- Allocate a fresh constructor
+
+ilxConApp env data_con args
+ | isUnboxedTupleCon data_con
+ = let tm_args' = filter (not. isVoidIlxRepType . stgArgType) tm_args in
+ case tm_args' of
+ [h] ->
+ -- Collapse the construction of an unboxed tuple type where
+ -- every element is zero-sized
+ vcat (ilxMapPlaceArgs 0 pushArg env tm_args')
+ _ ->
+ -- Minimize the construction of an unboxed tuple type, which
+ -- may contain zero-sized elements. Recompute all the
+ -- bits and pieces from the simpler case below for the new data
+ -- type constructor....
+ let data_con' = tupleCon Unboxed (length tm_args') in
+ let rep_ty_args' = filter (not . isVoidIlxRepType) rep_ty_args in
+
+ let tycon' = dataConTyCon data_con' in
+ let (formal_tyvars', formal_tau_ty') = splitForAllTys (dataConRepType data_con') in
+ let (formal_arg_tys', _) = splitFunTys formal_tau_ty' in
+ let formal_env' = formalIlxEnv env formal_tyvars' in
+
+ vcat [vcat (ilxMapPlaceArgs 0 pushArg env tm_args'),
+ sep [text "newobj void ",
+ ilxTyConApp env tycon' rep_ty_args',
+ text "::.ctor",
+ pprValArgTys ilxTypeR formal_env' (map deepIlxRepType formal_arg_tys')
+ ]
+ ]
+ | otherwise
+ -- Now all other constructions
+ = -- Assume C :: forall a. a -> T a -> T a
+ -- ldloc x arg of type Int
+ -- ldloc y arg of type T Int
+ -- newdata classunion T<Int32>, C(!0, T <!0>)
+ --
+ let tycon = dataConTyCon data_con in
+ let (formal_tyvars, formal_tau_ty) = splitForAllTys (dataConRepType data_con) in
+ let (formal_arg_tys, _) = splitFunTys formal_tau_ty in
+
+ vcat [vcat (ilxMapPlaceArgs 0 pushArg env tm_args),
+ sep [ text "newdata",
+ nest 2 (ilxTyConApp env tycon rep_ty_args <> comma),
+ nest 2 (ilxConRef env data_con)
+ ]
+ ]
+ where
+ tycon = dataConTyCon data_con
+ rep_ty_args = map deepIlxRepType ty_args
+ (ty_args,tm_args) = if isAlgTyCon tycon then splitTyArgs (tyConTyVars tycon) args else splitTyArgs1 args
+
+-- Split some type arguments off, throwing away the higher kinded ones for the moment.
+-- Base the higher-kinded checks off a corresponding list of formals.
+splitTyArgs :: [Var] -- Formals
+ -> [StgArg] -- Actuals
+ -> ([Type], [StgArg])
+splitTyArgs (htv:ttv) (StgTypeArg h:t)
+ | isIlxTyVar htv = ((h:l), r)
+ | otherwise = trace "splitTyArgs: threw away higher kinded type arg" (l, r)
+ where (l,r) = splitTyArgs ttv t
+splitTyArgs _ l = ([],l)
+
+-- Split some type arguments off, where none should be higher kinded
+splitTyArgs1 :: [StgArg] -> ([Type], [StgArg])
+splitTyArgs1 (StgTypeArg ty : args) = (ty:tys, args')
+ where
+ (tys, args') = splitTyArgs1 args
+splitTyArgs1 args = ([], args)
+
+ilxConRef env data_con
+ | isUnboxedTupleCon data_con
+ = let data_con' = tupleCon Unboxed (length non_void_args)in
+ pprId data_con' <> arg_text
+ | otherwise
+ = pprId data_con <> arg_text
+ where
+ arg_text = pprValArgTys ilxTypeL env' (map deepIlxRepType non_void_args)
+ non_void_args = filter (not . isVoidIlxRepType) arg_tys
+ (tyvars, tau_ty) = splitForAllTys (dataConRepType data_con)
+ (arg_tys, _) = splitFunTys tau_ty
+ env' = formalIlxEnv env tyvars
+
+
+
+
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{PrimOps and Prim Representations} *
+%************************************************************************
+
+\begin{code}
+
+ilxPrimApp env op args ret_ty = ilxPrimOpTable op args env
+
+
+type IlxTyFrag = IlxEnv -> SDoc
+ilxType s env = text s
+
+ilxLift ty env = text "thunk" <> angleBrackets (ty env)
+
+ilxTypeSeq :: [IlxTyFrag] -> IlxTyFrag
+ilxTypeSeq ops env = hsep (map (\x -> x env) ops)
+
+tyPrimConTable :: UniqFM ([Type] -> IlxTyFrag)
+tyPrimConTable =
+ listToUFM [(addrPrimTyConKey, (\_ -> repAddr)),
+-- (fileStreamPrimTyConKey, (\_ -> repFileStream)),
+ (foreignObjPrimTyConKey, (\_ -> repForeign)),
+ (stablePtrPrimTyConKey, (\[ty] -> repStablePtr {- (ilxTypeL2 ty) -})),
+ (stableNamePrimTyConKey, (\[ty] -> repStableName {- (ilxTypeL2 ty) -} )),
+ (charPrimTyConKey, (\_ -> repChar)),
+ (wordPrimTyConKey, (\_ -> repWord)),
+ (byteArrayPrimTyConKey, (\_ -> repByteArray)),
+ (intPrimTyConKey, (\_ -> repInt)),
+ (int64PrimTyConKey, (\_ -> repInt64)),
+ (word64PrimTyConKey, (\_ -> repWord64)),
+ (floatPrimTyConKey, (\_ -> repFloat)),
+ (doublePrimTyConKey, (\_ -> repDouble)),
+ -- These can all also accept unlifted parameter types so we explicitly lift.
+ (arrayPrimTyConKey, (\[ty] -> repArray (ilxTypeL2 ty))),
+ (mutableArrayPrimTyConKey, (\[_, ty] -> repMutArray (ilxTypeL2 ty))),
+ (weakPrimTyConKey, (\[ty] -> repWeak (ilxTypeL2 ty))),
+ (mVarPrimTyConKey, (\[_, ty] -> repMVar (ilxTypeL2 ty))),
+ (mutVarPrimTyConKey, (\[ty1, ty2] -> repMutVar (ilxTypeL2 ty1) (ilxTypeL2 ty2))),
+ (mutableByteArrayPrimTyConKey, (\_ -> repByteArray)),
+ (threadIdPrimTyConKey, (\_ -> repThread)),
+ (bcoPrimTyConKey, (\_ -> repBCO))
+ ]
+
+ilxTypeL2 :: Type -> IlxTyFrag
+ilxTypeL2 ty env = ilxTypeL env ty
+ilxTypeR2 :: Type -> IlxTyFrag
+ilxTypeR2 ty env = ilxTypeR env ty
+
+ilxMethTyVarA = ilxType "!!0"
+ilxMethTyVarB = ilxType "!!1"
+prelGHCReference :: IlxTyFrag
+prelGHCReference env =
+ if ilxEnvModule env == mkHomeModule (mkModuleName "PrelGHC") then empty
+ else if inPrelude then moduleNameReference (mkModuleName "PrelGHC")
+ else basePackageReference
+
+prelBaseReference :: IlxTyFrag
+prelBaseReference env =
+ if ilxEnvModule env == mkHomeModule (mkModuleName "PrelBase") then empty
+ else if inPrelude then moduleNameReference (mkModuleName "PrelBase")
+ else basePackageReference
+
+repThread = ilxType "class [mscorlib]System.Threading.Thread /* ThreadId# */ "
+repByteArray = ilxType "unsigned int8[] /* ByteArr# */ "
+--repFileStream = text "void * /* FileStream# */ " -- text "class [mscorlib]System.IO.FileStream"
+repInt = ilxType "int32"
+repWord = ilxType "unsigned int32"
+repAddr =ilxType "/* Addr */ void *"
+repInt64 = ilxType "int64"
+repWord64 = ilxType "unsigned int64"
+repFloat = ilxType "float32"
+repDouble = ilxType "float64"
+repChar = ilxType "/* Char */ unsigned int8"
+repForeign = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_Foreignzh"]
+repInteger = ilxUnboxedPairRep repInt repByteArray
+repIntegerPair = ilxUnboxedQuadRep repInt repByteArray repInt repByteArray
+repArray ty = ilxTypeSeq [ty,ilxType "[]"]
+repMutArray ty = ilxTypeSeq [ty,ilxType "[]"]
+repMVar ty = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_MVarzh",ilxTyParams [ty]]
+repMutVar _ ty2 = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_MutVarzh",ilxTyParams [ty2]]
+repWeak ty1 = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_Weakzh",ilxTyParams [ty1]]
+repStablePtr {- ty1 -} = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_StablePtrzh" {- ,ilxTyParams [ty1] -} ]
+repStableName {- ty1 -} = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_StableNamezh" {- ,ilxTyParams [ty1] -} ]
+classWeak = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_Weakzh"]
+repBCO = ilxTypeSeq [ilxType "class ",prelGHCReference,ilxType "PrelGHC_BCOzh"]
+
+ilxTyPair l r = ilxTyParams [l,r]
+ilxTyTriple l m r = ilxTyParams [l,m,r]
+ilxTyQuad l m1 m2 r = ilxTyParams [l,m1,m2,r]
+ilxUnboxedEmptyRep = ilxTypeSeq [ilxType "value class",prelGHCReference,ilxType "PrelGHC_Z1H"]
+ilxUnboxedPairRep l r = ilxTypeSeq [ilxType "value class",prelGHCReference,ilxType "PrelGHC_Z2H",ilxTyPair l r]
+ilxUnboxedTripleRep l m r = ilxTypeSeq [ilxType "value class",prelGHCReference,ilxType "PrelGHC_Z3H",ilxTyTriple l m r]
+ilxUnboxedQuadRep l m1 m2 r = ilxTypeSeq [ilxType "value class",prelGHCReference,ilxType "PrelGHC_Z4H",ilxTyQuad l m1 m2 r]
+
+ilxTyIO b = ilxTypeSeq [ilxType "(func ( /* unit skipped */ ) --> ", b, ilxType ")"]
+
+ilxTyParams :: [IlxTyFrag] -> IlxTyFrag
+ilxTyParams [] env = empty
+ilxTyParams l env = angleBrackets (ilxTyParamsAux l env)
+ where
+ ilxTyParamsAux [] env = empty
+ ilxTyParamsAux [h] env = h env
+ ilxTyParamsAux (h:t) env = h env <> text "," <+> ilxTyParamsAux t env
+ ilxTyParams [] env = empty
+
+
+type IlxOpFrag = IlxEnv -> SDoc
+ilxOp :: String -> IlxOpFrag
+ilxOp s env = text s
+ilxOpSeq :: [IlxOpFrag] -> IlxOpFrag
+ilxOpSeq ops env = hsep (map (\x -> x env) ops)
+
+ilxParams :: [IlxOpFrag] -> IlxOpFrag
+ilxParams l env = parens (ilxParamsAux l env)
+ where
+ ilxParamsAux [] env = empty
+ ilxParamsAux [h] env = h env
+ ilxParamsAux (h:t) env = h env <> text "," <+> ilxParamsAux t env
+
+
+ilxMethodRef rty cls nm tyargs args =
+ ilxOpSeq [rty,cls,ilxOp "::",ilxOp nm,
+ ilxTyParams tyargs,ilxParams args]
+
+ilxCall m = ilxOpSeq [ilxOp "call", m]
+
+ilxSupportClass = ilxOpSeq [prelGHCReference, ilxOp "'GHC.support'"]
+ilxSuppMeth rty nm tyargs args = ilxMethodRef rty ilxSupportClass nm tyargs args
+
+ilxCallSuppMeth rty nm tyargs args = ilxCall (ilxSuppMeth rty nm tyargs args)
+
+ilxMkBool :: IlxOpFrag
+ilxMkBool = ilxOpSeq [ilxOp "call class",prelBaseReference,
+ ilxOp "PrelBase_Bool",
+ prelGHCReference,ilxOp "GHC.support::mkBool(bool)"]
+ilxCgt = ilxOpSeq [ilxOp "cgt",ilxMkBool]
+ilxCge = ilxOpSeq [ilxOp "clt ldc.i4 0 ceq ",ilxMkBool]
+ilxClt = ilxOpSeq [ilxOp "clt ",ilxMkBool]
+ilxCle = ilxOpSeq [ilxOp "cgt ldc.i4 0 ceq ",ilxMkBool]
+ilxCeq = ilxOpSeq [ilxOp "ceq ",ilxMkBool]
+ilxCne = ilxOpSeq [ilxOp "ceq ldc.i4 0 ceq " ,ilxMkBool]
+ilxCgtUn = ilxOpSeq [ilxOp "cgt.un ",ilxMkBool]
+ilxCgeUn = ilxOpSeq [ilxOp "clt.un ldc.i4 0 ceq ",ilxMkBool]
+ilxCltUn = ilxOpSeq [ilxOp "clt.un ",ilxMkBool]
+ilxCleUn = ilxOpSeq [ilxOp "cgt.un ldc.i4 0 ceq ",ilxMkBool]
+
+ilxAddrOfForeignOp = ilxOpSeq [ilxOp "ldfld void *" , repForeign, ilxOp "::contents"]
+ilxAddrOfByteArrOp = ilxOp "ldc.i4 0 ldelema unsigned int8"
+
+ilxPrimOpTable :: PrimOp -> [StgArg] -> IlxOpFrag
+ilxPrimOpTable op
+ = case op of
+ CharGtOp -> simp_op ilxCgt
+ CharGeOp -> simp_op ilxCge
+ CharEqOp -> simp_op ilxCeq
+ CharNeOp -> simp_op ilxCne
+ CharLtOp -> simp_op ilxClt
+ CharLeOp -> simp_op ilxCle
+
+ OrdOp -> simp_op (ilxOp "conv.i4") -- chars represented by UInt32 (u4)
+ ChrOp -> simp_op (ilxOp "conv.u4")
+
+ IntGtOp -> simp_op ilxCgt
+ IntGeOp -> simp_op ilxCge
+ IntEqOp -> simp_op ilxCeq
+ IntNeOp -> simp_op ilxCne
+ IntLtOp -> simp_op ilxClt
+ IntLeOp -> simp_op ilxCle
+
+ Narrow8IntOp -> simp_op (ilxOp"conv.i1")
+ Narrow16IntOp -> simp_op (ilxOp "conv.i2")
+ Narrow32IntOp -> simp_op (ilxOp "conv.i4")
+ Narrow8WordOp -> simp_op (ilxOp "conv.u1")
+ Narrow16WordOp -> simp_op (ilxOp "conv.u2")
+ Narrow32WordOp -> simp_op (ilxOp "conv.u4")
+
+ WordGtOp -> simp_op ilxCgtUn
+ WordGeOp -> simp_op ilxCgeUn
+ WordEqOp -> simp_op ilxCeq
+ WordNeOp -> simp_op ilxCne
+ WordLtOp -> simp_op ilxCltUn
+ WordLeOp -> simp_op ilxCleUn
+
+ AddrGtOp -> simp_op ilxCgt
+ AddrGeOp -> simp_op ilxCge
+ AddrEqOp -> simp_op ilxCeq
+ AddrNeOp -> simp_op ilxCne
+ AddrLtOp -> simp_op ilxClt
+ AddrLeOp -> simp_op ilxCle
+
+ FloatGtOp -> simp_op ilxCgt
+ FloatGeOp -> simp_op ilxCge
+ FloatEqOp -> simp_op ilxCeq
+ FloatNeOp -> simp_op ilxCne
+ FloatLtOp -> simp_op ilxClt
+ FloatLeOp -> simp_op ilxCle
+
+ DoubleGtOp -> simp_op ilxCgt
+ DoubleGeOp -> simp_op ilxCge
+ DoubleEqOp -> simp_op ilxCeq
+ DoubleNeOp -> simp_op ilxCne
+ DoubleLtOp -> simp_op ilxClt
+ DoubleLeOp -> simp_op ilxCle
+
+ -- Int#-related ops:
+ IntAddOp -> simp_op (ilxOp "add")
+ IntSubOp -> simp_op (ilxOp "sub")
+ IntMulOp -> simp_op (ilxOp "mul")
+ IntQuotOp -> simp_op (ilxOp "div")
+ IntNegOp -> simp_op (ilxOp "neg")
+ IntRemOp -> simp_op (ilxOp "rem")
+
+ -- Addr# ops:
+ AddrAddOp -> simp_op (ilxOp "add")
+ AddrSubOp -> simp_op (ilxOp "sub")
+ AddrRemOp -> simp_op (ilxOp "rem")
+ Int2AddrOp -> warn_op "int2Addr" (simp_op (ilxOp "/* PrimOp int2Addr */ "))
+ Addr2IntOp -> warn_op "addr2Int" (simp_op (ilxOp "/* PrimOp addr2Int */ "))
+
+ -- Word#-related ops:
+ WordAddOp -> simp_op (ilxOp "add")
+ WordSubOp -> simp_op (ilxOp "sub")
+ WordMulOp -> simp_op (ilxOp "mul")
+ WordQuotOp -> simp_op (ilxOp "div")
+ WordRemOp -> simp_op (ilxOp "rem")
+
+ ISllOp -> simp_op (ilxOp "shl")
+ ISraOp -> simp_op (ilxOp "shr")
+ ISrlOp -> simp_op (ilxOp "shr.un")
+ IntAddCOp -> simp_op (ilxCallSuppMeth (ilxUnboxedPairRep repInt repInt) "IntAddCOp" [] [repInt, repInt])
+ IntSubCOp -> simp_op (ilxCallSuppMeth (ilxUnboxedPairRep repInt repInt) "IntSubCOp" [] [repInt, repInt])
+ IntGcdOp -> simp_op (ilxCallSuppMeth repInt "IntGcdOp" [] [repInt, repInt])
+
+
+ -- Word#-related ops:
+ AndOp -> simp_op (ilxOp "and")
+ OrOp -> simp_op (ilxOp "or")
+ NotOp -> simp_op (ilxOp "not")
+ XorOp -> simp_op (ilxOp "xor")
+ SllOp -> simp_op (ilxOp "shl")
+ SrlOp -> simp_op (ilxOp "shr")
+ Word2IntOp -> simp_op (ilxOp "conv.i4")
+ Int2WordOp -> simp_op (ilxOp "conv.u4")
+
+ -- Float#-related ops:
+ FloatAddOp -> simp_op (ilxOp "add")
+ FloatSubOp -> simp_op (ilxOp "sub")
+ FloatMulOp -> simp_op (ilxOp "mul")
+ FloatDivOp -> simp_op (ilxOp "div")
+ FloatNegOp -> simp_op (ilxOp "neg")
+ Float2IntOp -> simp_op (ilxOp "conv.i4")
+ Int2FloatOp -> simp_op (ilxOp "conv.r4")
+
+ DoubleAddOp -> simp_op (ilxOp "add")
+ DoubleSubOp -> simp_op (ilxOp "sub")
+ DoubleMulOp -> simp_op (ilxOp "mul")
+ DoubleDivOp -> simp_op (ilxOp "div")
+ DoubleNegOp -> simp_op (ilxOp "neg")
+ Double2IntOp -> simp_op (ilxOp "conv.i4")
+ Int2DoubleOp -> simp_op (ilxOp "conv.r4")
+ Double2FloatOp -> simp_op (ilxOp "conv.r4")
+ Float2DoubleOp -> simp_op (ilxOp "conv.r8")
+ DoubleDecodeOp -> simp_op (ilxCallSuppMeth (ilxUnboxedTripleRep repInt repInt repByteArray) "decodeDouble" [] [ilxType "float64"])
+ FloatDecodeOp -> simp_op (ilxCallSuppMeth (ilxUnboxedTripleRep repInt repInt repByteArray) "decodeFloat" [] [ilxType "float32"])
+
+ FloatExpOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Exp(float64) conv.r4")
+ FloatLogOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Log(float64) conv.r4")
+ FloatSqrtOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Sqrt(float64) conv.r4")
+ FloatSinOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Sin(float64) conv.r4")
+ FloatCosOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Cos(float64) conv.r4")
+ FloatTanOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Tan(float64) conv.r4")
+ FloatAsinOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Asin(float64) conv.r4")
+ FloatAcosOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Acos(float64) conv.r4")
+ FloatAtanOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Atan(float64) conv.r4")
+ FloatSinhOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Sinh(float64) conv.r4")
+ FloatCoshOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Cosh(float64) conv.r4")
+ FloatTanhOp -> simp_op (ilxOp "conv.r8 call float64 [mscorlib]System.Math::Tanh(float64) conv.r4")
+ FloatPowerOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Pow(float64, float64) conv.r4") -- ** op, make use of implicit cast to r8...
+
+ DoubleExpOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Exp(float64)")
+ DoubleLogOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Log(float64)")
+ DoubleSqrtOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Sqrt(float64)")
+
+ DoubleSinOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Sin(float64)")
+ DoubleCosOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Cos(float64)")
+ DoubleTanOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Tan(float64)")
+
+ DoubleAsinOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Asin(float64)")
+ DoubleAcosOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Acos(float64)")
+ DoubleAtanOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Atan(float64)")
+
+ DoubleSinhOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Sinh(float64)")
+ DoubleCoshOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Cosh(float64)")
+ DoubleTanhOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Tanh(float64)")
+
+ DoublePowerOp -> simp_op (ilxOp "call float64 [mscorlib]System.Math::Pow(float64, float64)")
+
+ -- Integer (and related...) ops: bail out to support routines
+ IntegerAndOp -> simp_op (ilxCallSuppMeth repInteger "IntegerAndOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerOrOp -> simp_op (ilxCallSuppMeth repInteger "IntegerOrOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerXorOp -> simp_op (ilxCallSuppMeth repInteger "IntegerXorOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerComplementOp -> simp_op (ilxCallSuppMeth repInteger "IntegerComplementOp" [] [repInt, repByteArray])
+ IntegerAddOp -> simp_op (ilxCallSuppMeth repInteger "IntegerAddOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerSubOp -> simp_op (ilxCallSuppMeth repInteger "IntegerSubOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerMulOp -> simp_op (ilxCallSuppMeth repInteger "IntegerMulOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerGcdOp -> simp_op (ilxCallSuppMeth repInteger "IntegerGcdOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerQuotRemOp -> simp_op (ilxCallSuppMeth repIntegerPair "IntegerQuotRemOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerDivModOp -> simp_op (ilxCallSuppMeth repIntegerPair "IntegerDivModOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerIntGcdOp -> simp_op (ilxCallSuppMeth repInt "IntegerIntGcdOp" [] [repInt, repByteArray, repInt])
+ IntegerDivExactOp -> simp_op (ilxCallSuppMeth repInteger "IntegerDivExactOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerQuotOp -> simp_op (ilxCallSuppMeth repInteger "IntegerQuotOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerRemOp -> simp_op (ilxCallSuppMeth repInteger "IntegerRemOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerCmpOp -> simp_op (ilxCallSuppMeth repInt "IntegerCmpOp" [] [repInt, repByteArray, repInt, repByteArray])
+ IntegerCmpIntOp -> simp_op (ilxCallSuppMeth repInt "IntegerCmpIntOp" [] [repInt, repByteArray, repInt])
+ Integer2IntOp -> simp_op (ilxCallSuppMeth repInt "Integer2IntOp" [] [repInt, repByteArray])
+ Integer2WordOp -> simp_op (ilxCallSuppMeth repWord "Integer2WordOp" [] [repInt, repByteArray])
+ Int2IntegerOp -> simp_op (ilxCallSuppMeth repInteger "Int2IntegerOp" [] [repInt])
+ Word2IntegerOp -> simp_op (ilxCallSuppMeth repInteger "Word2IntegerOp" [] [repWord])
+-- IntegerToInt64Op -> simp_op (ilxCallSuppMeth repInt64 "IntegerToInt64Op" [] [repInt,repByteArray])
+ Int64ToIntegerOp -> simp_op (ilxCallSuppMeth repInteger "Int64ToIntegerOp" [] [repInt64])
+-- IntegerToWord64Op -> simp_op (ilxCallSuppMeth repWord64 "IntegerToWord64Op" [] [repInt,repByteArray])
+ Word64ToIntegerOp -> simp_op (ilxCallSuppMeth repInteger "Word64ToIntegerOp" [] [repWord64])
+
+
+
+ IndexByteArrayOp_Char -> simp_op (ilxOp "ldelem.u1")
+ IndexByteArrayOp_WideChar -> simp_op (ilxOp "ldelem.u4")
+ IndexByteArrayOp_Int -> simp_op (ilxOp "ldelem.i4")
+ IndexByteArrayOp_Word -> simp_op (ilxOp "ldelem.u4")
+ IndexByteArrayOp_Addr -> simp_op (ilxOp "ldelem.u")
+ IndexByteArrayOp_Float -> simp_op (ilxOp "ldelem.r4")
+ IndexByteArrayOp_Double -> simp_op (ilxOp "ldelem.r8")
+ IndexByteArrayOp_StablePtr -> simp_op (ilxOp "ldelem.ref")
+ IndexByteArrayOp_Int8 -> simp_op (ilxOp "ldelem.i1")
+ IndexByteArrayOp_Int16 -> simp_op (ilxOp "ldelem.i2")
+ IndexByteArrayOp_Int32 -> simp_op (ilxOp "ldelem.i4")
+ IndexByteArrayOp_Int64 -> simp_op (ilxOp "ldelem.i8")
+ IndexByteArrayOp_Word8 -> simp_op (ilxOp "ldelem.u1")
+ IndexByteArrayOp_Word16 -> simp_op (ilxOp "ldelem.u2")
+ IndexByteArrayOp_Word32 -> simp_op (ilxOp "ldelem.u4")
+ IndexByteArrayOp_Word64 -> simp_op (ilxOp "ldelem.u8")
+
+ {- should be monadic??? -}
+ ReadByteArrayOp_Char -> simp_op (ilxOp "ldelem.u1")
+ ReadByteArrayOp_WideChar -> simp_op (ilxOp "ldelem.u4")
+ ReadByteArrayOp_Int -> simp_op (ilxOp "ldelem.i4")
+ ReadByteArrayOp_Word -> simp_op (ilxOp "ldelem.u4")
+ ReadByteArrayOp_Addr -> simp_op (ilxOp "ldelem.u")
+ ReadByteArrayOp_Float -> simp_op (ilxOp "ldelem.r4")
+ ReadByteArrayOp_Double -> simp_op (ilxOp "ldelem.r8")
+ ReadByteArrayOp_StablePtr -> simp_op (ilxOp "ldelem.ref")
+ ReadByteArrayOp_Int8 -> simp_op (ilxOp "ldelem.i1")
+ ReadByteArrayOp_Int16 -> simp_op (ilxOp "ldelem.i2")
+ ReadByteArrayOp_Int32 -> simp_op (ilxOp "ldelem.i4")
+ ReadByteArrayOp_Int64 -> simp_op (ilxOp "ldelem.i8")
+ ReadByteArrayOp_Word8 -> simp_op (ilxOp "ldelem.u1")
+ ReadByteArrayOp_Word16 -> simp_op (ilxOp "ldelem.u2")
+ ReadByteArrayOp_Word32 -> simp_op (ilxOp "ldelem.u4")
+ ReadByteArrayOp_Word64 -> simp_op (ilxOp "ldelem.u8")
+ {- MutByteArr# s -> Int# -> State# s -> (# State# s, Char# #) -}
+ {- ByteArr# -> Int# -> Char# -}
+
+
+ WriteByteArrayOp_Char -> simp_op (ilxOp "stelem.u1")
+ WriteByteArrayOp_WideChar -> simp_op (ilxOp "stelem.u4")
+ WriteByteArrayOp_Int -> simp_op (ilxOp "stelem.i4")
+ WriteByteArrayOp_Word -> simp_op (ilxOp "stelem.u4")
+ WriteByteArrayOp_Addr -> simp_op (ilxOp "stelem.u")
+ WriteByteArrayOp_Float -> simp_op (ilxOp "stelem.r4")
+ WriteByteArrayOp_Double -> simp_op (ilxOp "stelem.r8")
+ WriteByteArrayOp_StablePtr -> simp_op (ilxOp "stelem.ref")
+ WriteByteArrayOp_Int8 -> simp_op (ilxOp "stelem.i1")
+ WriteByteArrayOp_Int16 -> simp_op (ilxOp "stelem.i2")
+ WriteByteArrayOp_Int32 -> simp_op (ilxOp "stelem.i4")
+ WriteByteArrayOp_Int64 -> simp_op (ilxOp "stelem.i8")
+ WriteByteArrayOp_Word8 -> simp_op (ilxOp "stelem.u1")
+ WriteByteArrayOp_Word16 -> simp_op (ilxOp "stelem.u2")
+ WriteByteArrayOp_Word32 -> simp_op (ilxOp "stelem.u4")
+ WriteByteArrayOp_Word64 -> simp_op (ilxOp "stelem.i8 /* nb. no stelem.u8 */")
+ {- MutByteArr# s -> Int# -> Char# -> State# s -> State# s -}
+
+ IndexOffAddrOp_Char -> simp_op (ilxOp "sizeof unsigned int8 mul add ldind.u1")
+ IndexOffAddrOp_WideChar -> simp_op (ilxOp "sizeof int32 mul add ldind.u4")
+ IndexOffAddrOp_Int -> simp_op (ilxOp "sizeof int32 mul add ldind.i4")
+ IndexOffAddrOp_Word -> simp_op (ilxOp "sizeof int32 mul add ldind.u4")
+ IndexOffAddrOp_Addr -> simp_op (ilxOp "sizeof native unsigned int mul add ldind.i")
+ IndexOffAddrOp_StablePtr -> simp_op (ilxOp "sizeof native unsigned int mul add ldind.ref")
+ IndexOffAddrOp_Float -> simp_op (ilxOp "sizeof float32 mul add ldind.r4")
+ IndexOffAddrOp_Double -> simp_op (ilxOp "sizeof float64 mul add ldind.r8")
+ IndexOffAddrOp_Int8 -> simp_op (ilxOp "sizeof int8 mul add ldind.i1")
+ IndexOffAddrOp_Int16 -> simp_op (ilxOp "sizeof int16 mul add ldind.i2")
+ IndexOffAddrOp_Int32 -> simp_op (ilxOp "sizeof int32 mul add ldind.i4")
+ IndexOffAddrOp_Int64 -> simp_op (ilxOp "sizeof int64 mul add ldind.i8")
+ IndexOffAddrOp_Word8 -> simp_op (ilxOp "sizeof unsigned int8 mul add ldind.u1")
+ IndexOffAddrOp_Word16 -> simp_op (ilxOp "sizeof unsigned int16 mul add ldind.u2")
+ IndexOffAddrOp_Word32 -> simp_op (ilxOp "sizeof unsigned int32 mul add ldind.u4")
+ IndexOffAddrOp_Word64 -> simp_op (ilxOp "sizeof int64 mul add ldind.u8")
+
+ -- ForeignObj: load the address inside the object first
+ -- TODO: is this remotely right?
+ EqForeignObj -> warn_op "eqForeignObj" (simp_op (ilxOp "pop /* PrimOp eqForeignObj */ "))
+ IndexOffForeignObjOp_Char -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int8 mul add ldind.u1"])
+ IndexOffForeignObjOp_WideChar -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int32 mul add ldind.u4"])
+ IndexOffForeignObjOp_Int -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int32 mul add ldind.i4"])
+ IndexOffForeignObjOp_Word -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int32 mul add ldind.u4"])
+ IndexOffForeignObjOp_Addr -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof native unsigned int mul add ldind.i "])
+ IndexOffForeignObjOp_StablePtr -> ty1_arg2_op (\ty fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof native unsigned int mul add ldind.ref "])
+ IndexOffForeignObjOp_Float -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof float32 mul add ldind.r4"])
+ IndexOffForeignObjOp_Double -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof float64 mul add ldind.r8"])
+ IndexOffForeignObjOp_Int8 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int8 mul add ldind.i1"])
+ IndexOffForeignObjOp_Int16 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int16 mul add ldind.i2"])
+ IndexOffForeignObjOp_Int32 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int32 mul add ldind.i4"])
+ IndexOffForeignObjOp_Int64 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof int64 mul add ldind.i8"])
+ IndexOffForeignObjOp_Word8 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int8 mul add ldind.u1"])
+ IndexOffForeignObjOp_Word16 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int16 mul add ldind.u2"])
+ IndexOffForeignObjOp_Word32 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int32 mul add ldind.u4"])
+ IndexOffForeignObjOp_Word64 -> arg2_op (\fobj n -> ilxOpSeq [fobj, ilxAddrOfForeignOp, n, ilxOp "sizeof unsigned int64 mul add ldind.u8"])
+
+ ReadOffAddrOp_Char -> simp_op (ilxOp "sizeof unsigned int8 mul add ldind.u1")
+ ReadOffAddrOp_WideChar -> simp_op (ilxOp "sizeof int32 mul add ldind.u4")
+ ReadOffAddrOp_Int -> simp_op (ilxOp "sizeof int32 mul add ldind.i4")
+ ReadOffAddrOp_Word -> simp_op (ilxOp "sizeof unsigned int32 mul add ldind.u4")
+ ReadOffAddrOp_Addr -> simp_op (ilxOp "sizeof native unsigned int mul add ldind.i")
+ ReadOffAddrOp_Float -> simp_op (ilxOp "sizeof float32 mul add ldind.r4")
+ ReadOffAddrOp_Double -> simp_op (ilxOp "sizeof float64 mul add ldind.r8")
+ ReadOffAddrOp_StablePtr -> simp_op (ilxOp "sizeof native unsigned int mul add ldind.ref")
+ ReadOffAddrOp_Int8 -> simp_op (ilxOp "sizeof int8 mul add ldind.i1")
+ ReadOffAddrOp_Int16 -> simp_op (ilxOp "sizeof int16 mul add ldind.i2")
+ ReadOffAddrOp_Int32 -> simp_op (ilxOp "sizeof int32 mul add ldind.i4")
+ ReadOffAddrOp_Int64 -> simp_op (ilxOp "sizeof int64 mul add ldind.i8")
+ ReadOffAddrOp_Word8 -> simp_op (ilxOp "sizeof unsigned int8 mul add ldind.u1")
+ ReadOffAddrOp_Word16 -> simp_op (ilxOp "sizeof unsigned int16 mul add ldind.u2")
+ ReadOffAddrOp_Word32 -> simp_op (ilxOp "sizeof unsigned int32 mul add ldind.u4")
+ ReadOffAddrOp_Word64 -> simp_op (ilxOp "sizeof unsigned int64 mul add ldind.u8")
+ {- Addr# -> Int# -> Char# -> State# s -> State# s -}
+
+ WriteOffAddrOp_Char -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "add", v, ilxOp "stind.u1"])
+ WriteOffAddrOp_WideChar -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof int32 mul add", v, ilxOp "stind.u4"])
+ WriteOffAddrOp_Int -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof int32 mul add", v, ilxOp "stind.i4"])
+ WriteOffAddrOp_Word -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof int32 mul add", v, ilxOp "stind.u4"])
+ WriteOffAddrOp_Addr -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof native unsigned int mul add", v, ilxOp "stind.i"])
+ WriteOffAddrOp_ForeignObj -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof native unsigned int mul add", v, ilxOp "stind.ref"])
+ WriteOffAddrOp_Float -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof float32 mul add", v,ilxOp "stind.r4"])
+ WriteOffAddrOp_StablePtr -> ty2_arg4_op (\ty1 sty addr n v s -> ilxOpSeq [addr, n, ilxOp "sizeof native unsigned int mul add", v, ilxOp "stind.ref"])
+ WriteOffAddrOp_Double -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof float64 mul add",v,ilxOp "stind.r8"])
+ WriteOffAddrOp_Int8 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof int8 mul add",v,ilxOp "stind.i1"])
+ WriteOffAddrOp_Int16 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof int16 mul add",v,ilxOp "stind.i2"])
+ WriteOffAddrOp_Int32 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof int32 mul add",v,ilxOp "stind.i4"])
+ WriteOffAddrOp_Int64 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof int64 mul add",v,ilxOp "stind.i8"])
+ WriteOffAddrOp_Word8 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof unsigned int8 mul add",v,ilxOp "stind.u1"])
+ WriteOffAddrOp_Word16 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof unsigned int16 mul add",v,ilxOp "stind.u2"])
+ WriteOffAddrOp_Word32 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof unsigned int32 mul add",v,ilxOp "stind.u4"])
+ WriteOffAddrOp_Word64 -> ty1_arg4_op (\sty addr n v s -> ilxOpSeq [addr,n,ilxOp "sizeof unsigned int64 mul add",v,ilxOp "stind.u8"])
+ {- Addr# -> Int# -> Char# -> State# s -> State# s -}
+
+ {- should be monadic??? -}
+ NewPinnedByteArrayOp_Char -> warn_op "newPinnedByteArray" (simp_op (ilxOp "newarr [mscorlib]System.Byte "))
+ NewByteArrayOp_Char -> simp_op (ilxOp "newarr [mscorlib]System.Byte")
+-- NewByteArrayOp_Int -> simp_op (ilxOp "newarr [mscorlib]System.Int32")
+-- NewByteArrayOp_Word -> simp_op (ilxOp "newarr [mscorlib]System.UInt32")
+-- NewByteArrayOp_Addr -> simp_op (ilxOp "newarr [mscorlib]System.UInt64")
+-- NewByteArrayOp_Float -> simp_op (ilxOp "newarr [mscorlib]System.Single")
+-- NewByteArrayOp_Double -> simp_op (ilxOp "newarr [mscorlib]System.Double")
+-- NewByteArrayOp_StablePtr -> simp_op (ilxOp "newarr [mscorlib]System.UInt32")
+-- NewByteArrayOp_Int64 -> simp_op (ilxOp "newarr [mscorlib]System.Int64") TODO: there is no unique for this one -}
+-- NewByteArrayOp_Word64 -> simp_op (ilxOp "newarr [mscorlib]System.UInt64") -}
+ {- Int# -> State# s -> (# State# s, MutByteArr# s #) -}
+ ByteArrayContents_Char -> warn_op "byteArrayContents" (simp_op ilxAddrOfByteArrOp)
+
+ UnsafeFreezeByteArrayOp -> ty1_op (\ty1 -> ilxOp "nop ")
+ {- MutByteArr# s -> State# s -> (# State# s, ByteArr# #) -}
+ SizeofByteArrayOp -> simp_op (ilxOp "ldlen")
+ {- ByteArr# -> Int# -}
+
+ SameMutableByteArrayOp -> ty1_op (\ty1 -> ilxCeq)
+ {- MutByteArr# s -> MutByteArr# s -> Bool -}
+ SizeofMutableByteArrayOp -> ty1_op (\ty1 -> ilxOp "ldlen")
+ {- MutByteArr# s -> Int# -}
+
+ SameMutVarOp -> ty2_op (\ty1 ty2 -> ilxCeq)
+ {- MutVar# s a -> MutVar# s a -> Bool -}
+ NewMutVarOp -> ty2_op (\ty1 ty2 -> ilxOpSeq [ilxOp "newobj void" , repMutVar ty1 ty2 , ilxOp "::.ctor(!0)"])
+ {- a -> State# s -> (# State# s, MutVar# s a #) -}
+ ReadMutVarOp -> ty2_op (\ty1 ty2 -> ilxOpSeq [ilxOp "ldfld !0" , repMutVar ty1 ty2 , ilxOp "::contents"])
+ {- MutVar# s a -> State# s -> (# State# s, a #) -}
+ WriteMutVarOp -> ty2_op (\ty1 ty2 -> ilxOpSeq [ilxOp "stfld !0" , repMutVar ty1 ty2 , ilxOp "::contents"])
+ {- MutVar# s a -> a -> State# s -> State# s -}
+
+ NewArrayOp -> ty2_op (\ty1 ty2 -> ilxCallSuppMeth (ilxType "!!0[]") "newArray" [ty1] [repInt,ilxMethTyVarA])
+ {- Int# -> a -> State# s -> (# State# s, MutArr# s a #) -}
+ IndexArrayOp -> ty1_op (\ty1 -> ilxOp "ldelem.ref")
+ {- Array# a -> Int# -> (# a #) -}
+ WriteArrayOp -> ty2_op (\ty1 ty2 -> ilxOp "stelem.ref")
+ {- MutArr# s a -> Int# -> a -> State# s -> State# s -}
+ ReadArrayOp -> ty2_op (\ty1 ty2 -> ilxOp "ldelem.ref")
+ {- MutArr# s a -> Int# -> State# s -> (# State# s, a #) -}
+ UnsafeFreezeArrayOp -> ty2_op (\ty1 ty2 -> ilxOp "nop")
+ {- MutArr# s a -> State# s -> (# State# s, Array# a #) -}
+ UnsafeThawArrayOp -> ty2_op (\ty1 ty2 -> ilxOp "nop")
+ {- Array# a -> State# s -> (# State# s, MutArr# s a #) -}
+
+ SameMutableArrayOp -> ty2_op (\ty1 ty2 -> ilxCeq)
+ {- MutArr# s a -> MutArr# s a -> Bool -}
+
+
+ RaiseOp -> ty2_op (\ty1 ty2 -> ilxOp "throw")
+ CatchOp -> ty2_op (\ty1 ty2 ->
+ ilxCallSuppMeth ilxMethTyVarA "'catch'" [ty1,ty2] [ilxLift (ilxTyIO (ilxType "!!0")),
+ ilxOp "thunk<(func (!!1) --> (func ( /* unit skipped */ ) --> !!0))>"])
+ {- (State# RealWorld -> (# State# RealWorld, a #) )
+ -> (b -> State# RealWorld -> (# State# RealWorld, a #) )
+ -> State# RealWorld
+ -> (# State# RealWorld, a #)
+ -}
+
+ BlockAsyncExceptionsOp -> ty1_op (\ty1 ->
+ ilxCallSuppMeth ilxMethTyVarA "blockAsyncExceptions" [ty1] [ilxLift (ilxTyIO (ilxType "!!0"))])
+
+ {- (State# RealWorld -> (# State# RealWorld, a #))
+ -> (State# RealWorld -> (# State# RealWorld, a #))
+ -}
+
+ UnblockAsyncExceptionsOp -> ty1_op (\ty1 ->
+ ilxCallSuppMeth ilxMethTyVarA "unblockAsyncExceptions" [ty1] [ilxLift (ilxTyIO (ilxType "!!0"))])
+
+ {-
+ State# RealWorld -> (# State# RealWorld, a #))
+ -> (State# RealWorld -> (# State# RealWorld, a #))
+ -}
+
+ NewMVarOp -> ty2_op (\sty ty ->
+ ilxOpSeq [ilxOp "newobj void " , repMVar ty , ilxOp "::.ctor()"])
+ {- State# s -> (# State# s, MVar# s a #) -}
+
+ TakeMVarOp -> ty2_op (\sty ty ->
+ ilxCallSuppMeth ilxMethTyVarA "takeMVar" [ty] [repMVar ilxMethTyVarA])
+ {- MVar# s a -> State# s -> (# State# s, a #) -}
+
+ -- These aren't yet right
+ TryTakeMVarOp -> ty2_op (\sty ty ->
+ ilxCallSuppMeth (ilxUnboxedPairRep repInt ilxMethTyVarA) "tryTakeMVar" [ty] [repMVar ilxMethTyVarA])
+ {- MVar# s a -> State# s -> (# State# s, a #) -}
+
+ TryPutMVarOp -> ty2_op (\sty ty ->
+ ilxCallSuppMeth repInt "tryPutMVar" [ty] [repMVar ilxMethTyVarA,ilxMethTyVarA])
+ {- MVar# s a -> State# s -> (# State# s, a #) -}
+
+ PutMVarOp -> ty2_op (\sty ty ->
+ ilxCallSuppMeth (ilxOp "void") "putMVar" [ty] [repMVar ilxMethTyVarA, ilxMethTyVarA])
+ {- MVar# s a -> a -> State# s -> State# s -}
+
+ SameMVarOp -> ty2_op (\sty ty -> ilxCeq)
+ {- MVar# s a -> MVar# s a -> Bool -}
+
+-- TakeMaybeMVarOp -> ty2_op (\sty ty ->
+-- (ilxCallSuppMeth (ilxUnboxedPairRep repInt ilxMethTyVarA) "tryTakeMVar" [ty] [repMVar ilxMethTyVarA]))
+-- {- MVar# s a -> State# s -> (# State# s, Int#, a #) -}
+
+ IsEmptyMVarOp -> ty2_op (\sty ty ->
+ ilxCallSuppMeth repInt "isEmptyMVar" [ty] [repMVar ilxMethTyVarA])
+ {- MVar# s a -> State# s -> (# State# s, Int# #) -}
+
+ TouchOp -> warn_op "touch" (ty1_op (\ty1 -> ilxOp "pop /* PrimOp touch */ "))
+
+ {- a -> Int# -}
+ DataToTagOp -> ty1_op (\ty1 ->
+ ilxCallSuppMeth repInt "dataToTag" [ty1] [ilxMethTyVarA])
+ {- a -> Int# -}
+
+ TagToEnumOp -> ty1_op (\ty1 ->
+ ilxCallSuppMeth ilxMethTyVarA "tagToEnum" [ty1] [repInt])
+ {- Int# -> a -}
+
+ MakeStablePtrOp -> ty1_op (\ty1 -> ilxOpSeq [ilxOp "box", ty1, ilxOp "newobj void", repStablePtr {- ty1 -}, ilxOp "::.ctor(class [mscorlib]System.Object)"])
+ {- a -> State# RealWorld -> (# State# RealWorld, StablePtr# a #) -}
+ MakeStableNameOp -> ty1_op (\ty1 -> ilxOpSeq [ilxOp "pop newobj void", repStableName {- ty1 -}, ilxOp "::.ctor()"])
+ -- primOpInfo MakeStableNameOp = mkGenPrimOp SLIT("makeStableName#") [alphaTyVar] [alphaTy, mkStatePrimTy realWorldTy] ((mkTupleTy Unboxed 2 [mkStatePrimTy realWorldTy, mkStableNamePrimTy alphaTy]))
+
+ EqStableNameOp -> ty1_op (\ty1 -> ilxOp "ceq")
+ -- [alphaTyVar] [mkStableNamePrimTy alphaTy, mkStableNamePrimTy alphaTy] (intPrimTy)
+ StableNameToIntOp -> warn_op "StableNameToIntOp" (ty1_op (\ty1 -> ilxOp "pop ldc.i4 0"))
+ -- [alphaTyVar] [mkStableNamePrimTy alphaTy] (intPrimTy)
+
+ DeRefStablePtrOp -> ty1_op (\ty1 -> ilxOpSeq [ilxOp "ldfld class [mscorlib]System.Object", repStablePtr {- ty1 -}, ilxOp "::contents"])
+ {- StablePtr# a -> State# RealWorld -> (# State# RealWorld, a #) -}
+
+ EqStablePtrOp -> ty1_op (\ty1 -> ilxOp "ceq")
+ {- StablePtr# a -> StablePtr# a -> Int# -}
+
+ -- The 3rd argument to MkWeakOp is always a IO Monad action, i.e. passed as () --> ()
+ MkWeakOp -> ty3_op (\ty1 ty2 ty3 -> ilxCall (ilxMethodRef (repWeak ilxMethTyVarB) classWeak "bake" [ilxLift ty1,ilxLift ty2] [ilxMethTyVarA, ilxMethTyVarB, ilxLift (ilxTyIO ilxUnboxedEmptyRep)]))
+ {- o -> b -> c -> State# RealWorld -> (# State# RealWorld, Weak# b #) -}
+
+ DeRefWeakOp -> ty1_op (\ty1 -> ilxCall (ilxMethodRef (ilxUnboxedPairRep repInt ilxMethTyVarA) classWeak "deref" [ty1] [repWeak ilxMethTyVarA]))
+ FinalizeWeakOp -> ty1_op (\ty1 -> ilxCall (ilxMethodRef (ilxUnboxedPairRep repInt (ilxTyIO ilxUnboxedEmptyRep)) classWeak "finalizer" [ty1] [repWeak ilxMethTyVarA]))
+ {- Weak# a -> State# RealWorld -> (# State# RealWorld, Int#,
+ State# RealWorld -> (# State# RealWorld, Unit #)) #) -}
+
+ MkForeignObjOp -> simp_op (ilxOpSeq [ilxOp "newobj void", repForeign, ilxOp "::.ctor(void *)"])
+ WriteForeignObjOp -> ty1_op (\sty -> ilxOpSeq [ilxOp "stfld void *", repForeign, ilxOp "::contents"])
+ ForeignObjToAddrOp -> simp_op ilxAddrOfForeignOp
+ YieldOp -> simp_op (ilxOpSeq [ilxOp "call class [mscorlib]System.Threading.Thread class [mscorlib]System.Threading.Thread::get_CurrentThread()
+ call instance void class [mscorlib]System.Threading.Thread::Suspend()"])
+ MyThreadIdOp -> simp_op (ilxOpSeq [ilxOp "call default class [mscorlib]System.Threading.Thread class [mscorlib]System.Threading.Thread::get_CurrentThread() "])
+ -- This pushes a THUNK across as the exception value.
+ -- This is the correct Haskell semantics... TODO: we should probably
+ -- push across an HaskellThreadAbortException object that wraps this
+ -- thunk, but which is still actually an exception of
+ -- an appropriate type.
+ KillThreadOp -> ty1_op (\ty -> ilxOpSeq [ilxOp "call instance void class [mscorlib]System.Threading.Thread::Abort(class [mscorlib]System.Object) "])
+ {- ThreadId# -> a -> State# RealWorld -> State# RealWorld -}
+
+ ForkOp -> warn_op "ForkOp" (simp_op (ilxOp "/* ForkOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParOp -> warn_op "ParOp" (simp_op (ilxOp "/* ParOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ DelayOp -> simp_op (ilxOp "call void class [mscorlib]System.Threading.Thread::Sleep(int32) ")
+ {- Int# -> State# s -> State# s -}
+
+ WaitReadOp -> warn_op "WaitReadOp" (simp_op (ilxOp "/* WaitReadOp skipped... */ pop"))
+ WaitWriteOp -> warn_op "WaitWriteOp" (simp_op (ilxOp " /* WaitWriteOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParAtForNowOp -> warn_op "ParAtForNowOp" (simp_op (ilxOp " /* ParAtForNowOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParAtRelOp -> warn_op "ParAtRelOp" (simp_op (ilxOp " /* ParAtRelOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParAtAbsOp -> warn_op "ParAtAbsOp" (simp_op (ilxOp " /* ParAtAbsOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParAtOp -> warn_op "ParAtOp" (simp_op (ilxOp " /* ParAtOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParLocalOp -> warn_op "ParLocalOp" (simp_op (ilxOp " /* ParLocalOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ ParGlobalOp -> warn_op "ParGlobalOp" (simp_op (ilxOp " /* ParGlobalOp skipped... */ newobj void [mscorlib]System.Object::.ctor() throw"))
+ SeqOp -> warn_op "SeqOp" (simp_op (ilxOp " newobj void [mscorlib]System.Object::.ctor() throw "))
+ AddrToHValueOp -> warn_op "AddrToHValueOp" (simp_op (ilxOp "newobj void [mscorlib]System.Object::.ctor() throw"))
+-- ReallyUnsafePtrEqualityOp -> simp_op (ilxOp "ceq")
+
+ MkApUpd0_Op -> warn_op "MkApUpd0_Op" (simp_op (ilxOp " newobj void [mscorlib]System.Object::.ctor() throw"))
+ NewBCOOp -> warn_op "NewBCOOp" (simp_op (ilxOp " newobj void [mscorlib]System.Object::.ctor() throw"))
+ -- ("newBCO#") [alphaTyVar, deltaTyVar] [byteArrayPrimTy, byteArrayPrimTy, mkArrayPrimTy alphaTy, byteArrayPrimTy, mkStatePrimTy deltaTy] ((mkTupleTy Unboxed 2 [mkStatePrimTy deltaTy, bcoPrimTy]))
+ _ -> pprPanic "Unimplemented primop" (ppr op)
+
+
+ty1_op :: (IlxTyFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty1_op op ((StgTypeArg ty1):rest) =
+ ilxOpSeq [getArgsStartingAt 1 rest,
+ op (ilxTypeR2 (deepIlxRepType ty1))]
+
+ty2_op :: (IlxTyFrag -> IlxTyFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty2_op op ((StgTypeArg ty1):(StgTypeArg ty2):rest) =
+ ilxOpSeq [getArgsStartingAt 2 rest,
+ op (ilxTypeR2 (deepIlxRepType ty1))
+ (ilxTypeR2 (deepIlxRepType ty2))]
+
+ty3_op :: (IlxTyFrag -> IlxTyFrag -> IlxTyFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty3_op op ((StgTypeArg ty1):(StgTypeArg ty2):(StgTypeArg ty3):rest) =
+ ilxOpSeq [getArgsStartingAt 3 rest,
+ op (ilxTypeR2 (deepIlxRepType ty1))
+ (ilxTypeR2 (deepIlxRepType ty2))
+ (ilxTypeR2 (deepIlxRepType ty3))]
+
+arg2_op :: (IlxTyFrag -> IlxOpFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+arg2_op op [a1, a2] =
+ op (getAsArg 1 a1)
+ (getAsArg 2 a2)
+
+ty1_arg2_op :: (IlxTyFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty1_arg2_op op [(StgTypeArg ty1), a1, a2] =
+ op (ilxTypeR2 (deepIlxRepType ty1))
+ (getAsArg 1 a1)
+ (getAsArg 2 a2)
+
+ty1_arg4_op :: (IlxTyFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty1_arg4_op op [(StgTypeArg ty1), a1, a2, a3, a4] =
+ op (ilxTypeR2 (deepIlxRepType ty1))
+ (getAsArg 1 a1)
+ (getAsArg 2 a2)
+ (getAsArg 3 a3)
+ (getAsArg 4 a4)
+
+ty2_arg4_op :: (IlxTyFrag -> IlxTyFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag -> IlxOpFrag) -> [StgArg] -> IlxOpFrag
+ty2_arg4_op op [(StgTypeArg ty1), (StgTypeArg ty2),a1, a2, a3, a4] =
+ op (ilxTypeR2 (deepIlxRepType ty1))
+ (ilxTypeR2 (deepIlxRepType ty2))
+ (getAsArg 2 a1)
+ (getAsArg 3 a2)
+ (getAsArg 4 a3)
+ (getAsArg 5 a4)
+
+hd (h:t) = h
+
+getAsArg n a env = hd (ilxMapPlaceArgs n pushArg env [a])
+getArgsStartingAt n a env = vcat (ilxMapPlaceArgs n pushArg env a)
+
+simp_op :: IlxOpFrag -> [StgArg] -> IlxOpFrag
+simp_op op args env = vcat (ilxMapPlaceArgs 0 pushArg env args) $$ op env
+warn_op warning f args = trace ("WARNING! IlxGen cannot translate primop " ++ warning) (f args)
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{C Calls}
+%* *
+%************************************************************************
+
+\begin{code}
+-- Call the P/Invoke stub wrapper generated in the import section.
+-- We eliminate voids in and around an IL C Call.
+-- We also do some type-directed translation for pinning Haskell-managed blobs
+-- of data as we throw them across the boundary.
+ilxFCall env (CCall (CCallSpec (StaticTarget c) cconv gc)) args ret_ty
+ = ilxComment ((text "C call") <+> pprCLabelString c) <+>
+ vcat [vcat (ilxMapPlaceArgs 0 pushCArg env args),
+ text "call" <+> retdoc <+> pprCLabelString c <+> tyarg_doc
+ <+> pprCValArgTys ilxTypeL env (map deepIlxRepType (filter (not. isVoidIlxRepType) (map stgArgType tm_args))) ]
+ where
+ retdoc | isVoidIlxRepType ret_ty = text "void"
+ | otherwise = ilxTypeR env (deepIlxRepType ret_ty)
+ (ty_args,tm_args) = splitTyArgs1 args
+ tyarg_doc | not (isEmptyVarSet (tyVarsOfTypes ty_args)) = text "/* type variable found */"
+ | otherwise = pprTypeArgs ilxTypeR env ty_args
+
+ilxFCall env (DNCall (DNCallSpec call_instr)) args ret_ty
+ = ilxComment (text "IL call") <+>
+ vcat [vcat (ilxMapPlaceArgs 0 pushEvalArg env tm_args),
+ ptext call_instr
+ -- In due course we'll need to pass the type arguments
+ -- and to do that we'll need to have more than just a string
+ -- for call_instr
+ ]
+ where
+ (ty_args,tm_args) = splitTyArgs1 args
+
+-- Push and argument and force its evaluation if necessary.
+pushEvalArg _ (StgTypeArg _) = empty
+pushEvalArg env (StgVarArg arg) = ilxFunApp env arg [] False
+pushEvalArg env (StgLitArg lit) = pushLit env lit
+
+
+hasTyCon (TyConApp tc _) tc2 = tc == tc2
+hasTyCon _ _ = False
+
+isByteArrayCArgTy ty = hasTyCon ty byteArrayPrimTyCon || hasTyCon ty mutableByteArrayPrimTyCon
+isByteArrayCArg v = isByteArrayCArgTy (deepIlxRepType (idType v))
+
+isForeignObjCArgTy ty = hasTyCon ty foreignObjPrimTyCon
+isForeignObjCArg v = isForeignObjCArgTy (deepIlxRepType (idType v))
+
+pinCCallArg v = isByteArrayCArg v || isForeignObjCArg v
+
+pinCArg env arg v = pushArg env arg <+> text "dup stloc" <+> singleQuotes (ilxEnvQualifyByExact env (ppr v) <> text "pin")
+pushCArg env arg@(StgVarArg v) | isByteArrayCArg v = pinCArg env arg v <+> ilxAddrOfByteArrOp env
+pushCArg env arg@(StgVarArg v) | isForeignObjCArg v = pinCArg env arg v <+> ilxAddrOfForeignOp env
+pushCArg env arg | otherwise = pushArg env arg
+
+pprCValArgTys f env tys = parens (pprSepWithCommas (pprCValArgTy f env) tys)
+pprCValArgTy f env ty | isByteArrayCArgTy ty = text "void *" <+> ilxComment (text "interior pointer into ByteArr#")
+pprCValArgTy f env ty | isForeignObjCArgTy ty = text "void *" <+> ilxComment (text "foreign object")
+pprCValArgTy f env ty | otherwise = f env ty
+
+
+foldR :: (a -> b -> b) -> [a] -> b -> b
+-- foldR _ [] z = z
+-- foldR f (x:xs) z = f x (foldR f xs z)
+{-# INLINE foldR #-}
+foldR k xs z = go xs
+ where
+ go [] = z
+ go (y:ys) = y `k` go ys
+
+\end{code}
+
projects / ghc-hetmet.git / blobdiff