2 \section{Generate COM+ extended assembler}
5 module IlxGen( ilxGen ) where
7 #include "HsVersions.h"
9 import Char ( ord, chr )
11 import Id ( idType, idName, isDeadBinder, idArityInfo )
12 import IdInfo ( arityLowerBound )
13 import Var ( Var, Id, TyVar, isId, isTyVar, tyVarKind, tyVarName )
15 import TyCon ( TyCon, tyConPrimRep, isUnboxedTupleTyCon, tyConDataCons,
16 newTyConRep, tyConTyVars, isDataTyCon, isAlgTyCon, tyConArity
18 import Class ( Class, classTyCon )
19 import Type ( liftedTypeKind, openTypeKind, unliftedTypeKind,
20 isUnLiftedType, isTyVarTy, mkTyVarTy, predRepTy,
21 splitForAllTys, splitFunTys, applyTy, applyTys
23 import TypeRep ( Type(..) )
24 import DataCon ( isUnboxedTupleCon, dataConTyCon, dataConRepType, dataConRepArgTys )
25 import Literal ( Literal(..) )
26 import PrelNames -- Lots of keys
27 import PrimOp ( PrimOp(..), CCallTarget(..),CCall(..) )
28 import TysWiredIn ( mkTupleTy, tupleCon )
29 import PrimRep ( PrimRep(..) )
30 import Name ( nameModule, nameOccName, isGlobalName, isLocalName, isDllName, NamedThing(getName) )
31 import Subst ( substTy, mkTyVarSubst )
33 import Module ( Module, PackageName, ModuleName, moduleName, modulePackage, preludePackage,
34 isHomeModule, pprModuleName, mkHomeModule, mkModuleName
38 import BasicTypes ( Boxity(..) )
39 import CStrings ( pprCLabelString )
42 import List ( partition, elem, insertBy,any )
45 import TysPrim ( byteArrayPrimTyCon, mutableByteArrayPrimTyCon )
47 -- opt_SimplDoEtaReduction is used to help with assembly naming conventions for different
48 -- versions of compiled Haskell code. We add a ".O" to all assembly and module
49 -- names when this is set (because that's clue that -O was set).
50 -- One day this will be configured by the command line.
51 import CmdLineOpts ( opt_Static, opt_InPackage, opt_SimplDoEtaReduction )
57 %************************************************************************
59 \subsection{Main driver}
61 %************************************************************************
64 ilxGen :: Module -> [TyCon] -> [(StgBinding,[Id])] -> SDoc
65 -- The TyCons should include those arising from classes
66 ilxGen mod tycons binds_w_srts
67 = vcat [vcat (map (ilxImportPackage topenv) (uniqSetToList import_packages)),
68 vcat (map (ilxImportModule topenv) (uniqSetToList import_modules)),
69 vcat (map (ilxImportTyCon topenv) (uniqSetToList import_tycons)),
70 vcat (map (ilxTyCon topenv) data_tycons),
71 vcat (map (ilxBindClosures topenv) binds),
72 ilxTopBind mod topenv toppairs
75 binds = map fst binds_w_srts
76 (import_packages,import_modules,import_tycons) = importsBinds binds `unionImpInfo` importsPrelude
77 toppairs = ilxPairs binds
78 topenv = extendIlxEnvWithTops (emptyIlxEnv False mod) mod toppairs
79 -- Generate info from class decls as well
80 data_tycons = filter isDataTyCon tycons
83 %************************************************************************
85 \subsection{Find Imports}
87 %************************************************************************
91 importsBinds :: [StgBinding] -> ImportsInfo
92 importsBinds binds = unionImpInfos (map importsBind binds)
94 importsBind :: StgBinding -> ImportsInfo
95 importsBind (StgNonRec _ b rhs) = importsRhs rhs `unionImpInfo` importsVar b
96 importsBind (StgRec _ pairs) = unionImpInfos (map (\(b,rhs) -> importsRhs rhs `unionImpInfo` importsVar b) pairs)
98 importsRhs (StgRhsCon _ con args) = importsDataCon con `unionImpInfo` importsStgArgs args
99 importsRhs (StgRhsClosure _ _ _ upd args body) = importsExpr body `unionImpInfo` importsVars args
101 importsExpr :: StgExpr -> ImportsInfo
102 importsExpr (StgLit l) = emptyImpInfo
103 importsExpr (StgApp f args) = importsVar f `unionImpInfo` importsStgArgs args
104 importsExpr (StgConApp con args) = importsDataCon con `unionImpInfo` importsStgArgs args
105 importsExpr (StgPrimApp op args res_ty) = importsType res_ty `unionImpInfo` importsStgArgs args
106 importsExpr (StgSCC cc expr) = importsExpr expr
107 importsExpr (StgCase scrut _ _ bndr srt alts)
108 = importsExpr scrut `unionImpInfo` imports_alts alts `unionImpInfo` importsVar bndr
110 imports_alts (StgAlgAlts _ alts deflt) -- The Maybe TyCon part is dealt with
111 -- by the case-binder's type
112 = unionImpInfos (map imports_alg_alt alts) `unionImpInfo` imports_deflt deflt
114 imports_alg_alt (con, bndrs, _, rhs)
115 = importsExpr rhs `unionImpInfo` importsDataCon con `unionImpInfo` importsVars bndrs
117 imports_alts (StgPrimAlts _ alts deflt)
118 = unionImpInfos (map imports_prim_alt alts) `unionImpInfo` imports_deflt deflt
120 imports_prim_alt (lit, rhs) = importsExpr rhs
121 imports_deflt StgNoDefault = emptyImpInfo
122 imports_deflt (StgBindDefault rhs) = importsExpr rhs
124 importsExpr (StgLetNoEscape _ _ bind body) = importsExpr (StgLet bind body)
125 importsExpr (StgLet bind body)
126 = importsBind bind `unionImpInfo` importsExpr body
128 importsApp v args = importsVar v `unionImpInfo` importsStgArgs args
129 importsStgArgs args = unionImpInfos (map importsStgArg args)
131 importsStgArg :: StgArg -> ImportsInfo
132 importsStgArg (StgTypeArg ty) = importsType ty
133 importsStgArg (StgVarArg v) = importsVar v
134 importsStgArg _ = emptyImpInfo
136 importsVars vs = unionImpInfos (map importsVar vs)
137 importsVar v = importsName (idName v) `unionImpInfo` importsType (idType v)
140 | isLocalName n = emptyImpInfo
141 | thisModule == nameModule n = emptyImpInfo
142 | isDllName n = singlePackageImpInfo (modulePackage (nameModule n))
143 | otherwise = singleModuleImpInfo (moduleName (nameModule n))
146 | thisModule == m = emptyImpInfo
147 | isHomeModule m = singleModuleImpInfo (moduleName m)
148 | otherwise = singlePackageImpInfo (modulePackage m)
150 importsType :: Type -> ImportsInfo
151 importsType ty = importsType2 (deepIlxRepType ty)
153 importsType2 :: Type -> ImportsInfo
154 importsType2 (AppTy f x) = importsType2 f `unionImpInfo` importsType2 x
155 importsType2 (TyVarTy _) = emptyImpInfo
156 importsType2 (TyConApp tc args) =importsTyCon tc `unionImpInfo` importsTypeArgs2 args
157 importsType2 (FunTy arg res) = importsType arg `unionImpInfo` importsType2 res
158 importsType2 (ForAllTy tv body_ty) = importsType2 body_ty
159 importsType2 (NoteTy _ ty) = importsType2 ty
160 importsTypeArgs2 tys =unionImpInfos (map importsType2 tys)
162 importsDataCon dcon = importsTyCon (dataConTyCon dcon)
164 importsMaybeTyCon Nothing = emptyImpInfo
165 importsMaybeTyCon (Just tc) = importsName (getName tc)
167 importsTyCon tc | (not (isDataTyCon tc) ||
168 isLocalName (getName tc) ||
169 thisModule == nameModule (getName tc)) = emptyImpInfo
170 importsTyCon tc | otherwise = importsName (getName tc) `unionImpInfo` (emptyUniqSet, emptyUniqSet,unitUniqSet tc)
172 importsPrelude | preludePackage == opt_InPackage = singleModuleImpInfo (mkModuleName "PrelGHC")
173 | otherwise = singlePackageImpInfo preludePackage
175 type ImportsInfo = (UniqSet PackageName, UniqSet ModuleName, UniqSet TyCon) -- (Packages, Modules, Datatypes)
177 emptyImpInfo :: ImportsInfo
178 emptyImpInfo = (emptyUniqSet, emptyUniqSet, emptyUniqSet)
179 singlePackageImpInfo p = (unitUniqSet p, emptyUniqSet, emptyUniqSet)
180 singleModuleImpInfo m = (emptyUniqSet, unitUniqSet m, emptyUniqSet)
182 unionImpInfo :: ImportsInfo -> ImportsInfo -> ImportsInfo
183 unionImpInfo (w1,x1,y1) (w2,x2,y2) = (unionUniqSets w1 w2, unionUniqSets x1 x2, unionUniqSets y1 y2)
185 unionImpInfos :: [ImportsInfo] -> ImportsInfo
186 unionImpInfos fvs = foldr unionImpInfo emptyImpInfo fvs
188 ilxImportTyCon :: IlxEnv -> TyCon -> SDoc
189 ilxImportTyCon env tycon | isDataTyCon tycon = pprIlxTyConDef True env tycon
190 ilxImportTyCon env tycon | otherwise = empty
192 ilxImportPackage :: IlxEnv -> PackageName -> SDoc
193 ilxImportPackage env p = text ".assembly extern ilx" <+> singleQuotes (ppr p <> hscOptionQual) <+> text "{ }"
195 ilxImportModule :: IlxEnv -> ModuleName -> SDoc
196 ilxImportModule env m = text ".module extern ilx" <+> singleQuotes (ppr m <> hscOptionQual)
201 %************************************************************************
203 \subsection{Type declarations}
205 %************************************************************************
210 ilxTyCon :: IlxEnv -> TyCon -> SDoc
211 ilxTyCon env tycon = pprIlxTyConDef False env tycon
213 -- filter to get only dataTyCons?
214 pprIlxTyConDef importing env tycon =
216 text ".classunion" <+> (if importing then text "extern" else empty) <+> text "thunk"
217 <+> ((nameReference env (getName tycon)) <> (ppr tycon)) <+> tyvars_text <+> alts_text]
219 tyvars = tyConTyVars tycon
220 (ilx_tvs, non_ilx_tvs) = categorizeTyVars tyvars
221 alts_env = extendIlxEnvWithFormalTyVars env ilx_tvs
222 tyvars_text = pprTyVarBinders alts_env ilx_tvs
223 alts = vcat (map (pprIlxDataCon alts_env) (tyConDataCons tycon))
224 alts_text = nest 2 (braces alts)
226 pprIlxDataCon env dcon =
227 text ".alternative" <+> pprId dcon <+>
228 parens (pprSepWithCommas (pprIlxTypeL env) (map deepIlxRepType (filter (not. isVoidIlxRepType) (dataConRepArgTys dcon))))
232 %************************************************************************
234 \subsection{Getting the .closures and literals out} *
235 %************************************************************************
239 ilxBindClosures :: IlxEnv -> StgBinding -> SDoc
240 ilxBindClosures env (StgNonRec _ b rhs) = ilxRhsClosures env (b,rhs)
241 ilxBindClosures env (StgRec _ pairs)
242 = vcat (map (ilxRhsClosures new_env) pairs)
244 new_env = extendIlxEnvWithBinds env pairs
247 ilxRhsClosures env (bndr, StgRhsCon _ _ _)
250 ilxRhsClosures env (bndr, StgRhsClosure _ _ fvs upd args rhs)
251 = vcat [ilxExprClosures next_env rhs,
254 kind_text <+> squotes cloname <+> free_vs_text,
257 vcat [text ".apply" <+> closure_sig_text,
265 kind_of_thing = case upd of
266 Updatable -> ASSERT( null args ) ".thunk"
268 kind_text = text kind_of_thing
270 cloname = ilxEnvQualifyByModule env (ppr bndr)
271 next_env = ilxPlaceStgRhsClosure env bndr
272 (free_vs_text,env_with_fvs) = pprFreeBinders next_env fvs
279 text "-->" <+> rty_text]
281 (args_text,env_with_args) = pprArgBinders env_with_fvs args
283 -- Find the type returned, from the no. of args and the type of "bndr"
285 case retType env_with_fvs (idIlxRepType bndr) args of
286 Just (env,ty) -> pprIlxTypeR env ty
287 Nothing -> trace "WARNING! IlxGen.trace could not find return type - see generated ILX for context where this occurs." (text "// Could not find return type:" <+> pprIlxTypeR env_with_fvs (idIlxRepType bndr)<+> text ", non representation: " <+> pprIlxTypeR env_with_fvs (idType bndr))
289 -- strip off leading ForAll and Fun type constructions
290 -- up to the given number of arguments, extending the environment as
292 retType env ty [] = Just (env, ty)
293 retType env (ForAllTy tv ty) (arg:args) = retType (extendIlxEnvWithTyArgs env [tv]) ty args
294 retType env (FunTy l r) (arg:args) = retType env r args
295 retType _ _ _ = Nothing
297 -- Code for the local variables
298 locals = ilxExprLocals env_with_args rhs
300 env_with_locals = extendIlxEnvWithLocals env_with_args locals
302 -- Code for the body of the main apply method
303 body_code = vcat [empty,
304 pprIlxLocals env_with_args locals,
305 ilxExpr (IlxEEnv env_with_locals (mkUniqSet (filter (not.isTyVar) args))) rhs Return,
309 body_text = nest 2 (braces (text ".maxstack 100" <+> nest 2 body_code))
312 pprIlxLocals env [] = empty
314 = text ".locals" <+> parens (pprSepWithCommas (pprIlxLocal env) (filter nonVoidLocal vs))
316 nonVoidLocal (LocalId v,_) = not (isVoidIlxRepId v)
317 nonVoidLocal _ = True
319 pprIlxLocal env (LocalId v,_) = pprIlxTypeL env (idIlxRepType v) <+> pprId v
320 pprIlxLocal env (LocalSDoc (ty,doc,pin),_) = pprIlxTypeL env (deepIlxRepType ty) <+> (if pin then text "pinned" else empty) <+> doc
323 pprFreeBinders env fvs
324 = (ilx_tvs_text <+> vs_text, env2)
326 (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
327 real_free_vs = filter (not . isVoidIlxRepId) free_vs
328 -- ignore the higher order type parameters for the moment
329 env1 = extendIlxEnvWithFreeTyVars env free_ilx_tvs
330 ilx_tvs_text = pprTyVarBinders env1 free_ilx_tvs
331 vs_text = parens (pprSepWithCommas ppr_id real_free_vs)
332 ppr_id v = pprIlxTypeL env1 (idIlxRepType v) <+> pprId v
333 env2 = extendIlxEnvWithFreeVars env1 real_free_vs
335 pprIdBinder env v = parens (pprIlxTypeL env (idIlxRepType v) <+> pprId v)
337 -- Declarations for the arguments of the main apply method
338 pprArgBinders env [] = (empty,env)
339 pprArgBinders env (arg:args)
340 = (arg_text <+> rest_text, res_env)
342 (arg_text,env') = pprArgBinder env arg
343 (rest_text,res_env) = pprArgBinders env' args
345 -- We could probably omit some void argument binders, but
348 | isVoidIlxRepId arg = (text "()", extendIlxEnvWithArgs env [arg])
350 = if isTyVar arg then
351 let env' = extendIlxEnvWithTyArgs env [arg] in
352 (pprTyVarBinder env' arg, env')
353 else (pprIdBinder env arg,extendIlxEnvWithArgs env [arg])
356 -- Compute local variables used by generated method.
357 -- The names of some generated locals are recorded as SDocs.
359 data LocalSpec = LocalId Id | LocalSDoc (Type, SDoc, Bool) -- flag is for pinning
361 ilxExprLocals :: IlxEnv -> StgExpr -> [(LocalSpec,Maybe (IlxEnv,StgRhs))]
362 ilxExprLocals env (StgLet bind body) = ilxBindLocals env bind ++ ilxExprLocals env body
363 ilxExprLocals env (StgLetNoEscape _ _ bind body) = ilxBindLocals env bind ++ ilxExprLocals env body -- TO DO????
364 ilxExprLocals env (StgCase scrut _ _ bndr _ alts)
365 = ilxExprLocals (ilxPlaceStgCaseScrut env) scrut ++
366 (if isDeadBinder bndr then [] else [(LocalId bndr,Nothing)]) ++
367 ilxAltsLocals env alts
368 ilxExprLocals env (StgPrimApp (CCallOp (CCall (StaticTarget c) casm gc cconv)) args ret_ty)
369 = concat (ilxMapPlaceArgs 0 ilxCCallArgLocals env args)
370 ilxExprLocals _ _ = []
372 -- Generate locals to use for pinning arguments as we cross the boundary
374 ilxCCallArgLocals env arg@(StgVarArg v) | pinCCallArg v =
375 [(LocalSDoc (idType v, ilxEnvQualifyByExact env (ppr v) <> text "pin", True), Nothing)]
376 ilxCCallArgLocals _ _ | otherwise = []
378 ilxBindLocals env (StgNonRec _ b rhs) = [(LocalId b,Just (env, rhs))]
379 ilxBindLocals env (StgRec _ pairs) = map (\(x,y) -> (LocalId x,Just (env, y))) pairs
381 ilxAltsLocals env (StgAlgAlts _ alts deflt) = ilxDefltLocals env deflt ++ concat (ilxMapPlaceAlts ilxAlgAltLocals env alts)
382 ilxAltsLocals env (StgPrimAlts _ alts deflt) = ilxDefltLocals env deflt ++ concat (ilxMapPlaceAlts ilxPrimAltLocals env alts)
384 ilxAlgAltLocals env (con, bndrs, _, rhs) = map (\x -> (LocalId x,Nothing)) (filter (\v -> isId v && not (isDeadBinder v)) bndrs) ++ ilxExprLocals env rhs
385 ilxPrimAltLocals env (lit, rhs) = ilxExprLocals env rhs
387 ilxDefltLocals env StgNoDefault = []
388 ilxDefltLocals env (StgBindDefault rhs) = ilxExprLocals (ilxPlaceStgBindDefault env) rhs
391 ilxExprClosures :: IlxEnv -> StgExpr -> SDoc
392 ilxExprClosures env (StgApp _ args)
393 = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
394 ilxExprClosures env (StgConApp _ args)
395 = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
396 ilxExprClosures env (StgPrimApp _ args _)
397 = vcat (ilxMapPlaceArgs 0 (ilxArgClosures) env args) -- get strings
398 ilxExprClosures env (StgLet bind body)
399 = ilxBindClosures env bind $$ ilxExprClosures (extendIlxEnvWithBinds env (ilxPairs1 bind)) body
400 ilxExprClosures env (StgLetNoEscape _ _ bind body) -- TO DO????
401 = ilxBindClosures env bind $$ ilxExprClosures (extendIlxEnvWithBinds env (ilxPairs1 bind)) body
402 ilxExprClosures env (StgCase scrut _ _ _ _ alts)
403 = ilxExprClosures (ilxPlaceStgCaseScrut env) scrut $$ ilxAltsClosures env alts
404 ilxExprClosures env (StgLit lit)
406 ilxExprClosures env other
409 ilxAltsClosures env (StgAlgAlts _ alts deflt)
410 = vcat [ilxExprClosures (ilxPlaceAlt env i) rhs | (i,(_, _, _, rhs)) <- [1..] `zip` alts]
412 ilxDefltClosures env deflt
414 ilxAltsClosures env (StgPrimAlts _ alts deflt)
415 = vcat [ilxExprClosures (ilxPlaceAlt env i) rhs | (i,(_, rhs)) <- [1..] `zip` alts]
417 vcat [ ilxGenLit (ilxPlacePrimAltLit env i) lit | (i,(lit,_)) <- [1..] `zip` alts]
419 ilxDefltClosures env deflt
421 ilxDefltClosures env (StgBindDefault rhs) = ilxExprClosures (ilxPlaceStgBindDefault env) rhs
422 ilxDefltClosures env StgNoDefault = empty
424 ilxArgClosures env (StgLitArg lit) = ilxGenLit env lit
425 ilxArgClosures _ _ = empty
429 ilxGenLit env (MachStr fs)
430 = vcat [text ".field static assembly char " <+> squotes nm <+> text "at" <+> nm <> text "L",
431 text ".data" <+> nm <> text "L" <+> text "= char *(" <> pprFSInILStyle fs <> text ")"
434 nm = ilxEnvQualifyByExact env (text "string")
436 ilxGenLit _ _ = empty
441 %************************************************************************
443 \subsection{Generating code}
445 %************************************************************************
450 -- Environment when generating expressions
451 data IlxEEnv = IlxEEnv IlxEnv (UniqSet Id)
453 data Sequel = Return | Jump IlxLabel
455 ilxSequel Return = text "ret"
456 ilxSequel (Jump lbl) = text "br" <+> pprIlxLabel lbl
458 isReturn Return = True
459 isReturn (Jump _) = False
462 ilxExpr :: IlxEEnv -> StgExpr
463 -> Sequel -- What to do at the end
466 ilxExpr eenv@(IlxEEnv env _) (StgApp fun args) sequel
467 = ilxFunApp env fun args (isReturn sequel) $$ ilxSequel sequel
469 -- ilxExpr eenv (StgLit lit) sequel
470 ilxExpr eenv@(IlxEEnv env _) (StgLit lit) sequel
471 = pushLit env lit $$ ilxSequel sequel
473 -- ilxExpr eenv (StgConApp data_con args) sequel
474 ilxExpr eenv@(IlxEEnv env _) (StgConApp data_con args) sequel
475 = text " /* ilxExpr:StgConApp */ " <+> ilxConApp env data_con args $$ ilxSequel sequel
477 -- ilxExpr eenv (StgPrimApp primop args _) sequel
478 ilxExpr eenv@(IlxEEnv env _) (StgPrimApp primop args ret_ty) sequel
479 = ilxPrimApp env primop args ret_ty $$ ilxSequel sequel
482 -- The following are versions of a peephole optimizations for "let t = \[] t2[fvs] in t"
483 -- I think would be subsumed by a general treatmenet of let-no-rec bindings??
484 ilxExpr eenv@(IlxEEnv env _) (StgLet (StgNonRec _ bndr (StgRhsClosure _ _ fvs upd [] rhs)) (StgApp fun [])) sequel
485 | (bndr == fun && null (ilxExprLocals env rhs)) -- TO DO???
486 = ilxExpr eenv rhs sequel
487 ilxExpr eenv@(IlxEEnv env _) (StgLetNoEscape _ _ (StgNonRec _ bndr (StgRhsClosure _ _ fvs upd [] rhs)) (StgApp fun [])) sequel
488 | (bndr == fun && null (ilxExprLocals env rhs)) -- TO DO???
489 = ilxExpr eenv rhs sequel
492 ilxExpr eenv (StgLet bind body) sequel
493 = ilxBind eenv bind $$ ilxExpr eenv body sequel
496 ilxExpr eenv (StgLetNoEscape _ _ bind body) sequel -- TO DO???
497 = ilxBind eenv bind $$ ilxExpr eenv body sequel
499 -- StgCase: Special case 1 to avoid spurious branch.
500 ilxExpr eenv@(IlxEEnv env live) (StgCase (StgApp fun args) live_in_case live_in_alts bndr _ alts) sequel
501 = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
502 ilxFunApp (ilxPlaceStgCaseScrut env) fun args False,
503 --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` live_in_alts)),
504 --ilxAlts (IlxEEnv env live_in_alts) bndr alts sequel
505 ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
508 -- StgCase: Special case 2 to avoid spurious branch.
509 ilxExpr eenv@(IlxEEnv env live) (StgCase (StgPrimApp primop args ret_ty) live_in_case live_in_alts bndr _ alts) sequel
510 = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
511 ilxPrimApp (ilxPlaceStgCaseScrut env) primop args ret_ty,
512 --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` live_in_alts)),
513 --ilxAlts (IlxEEnv env live_in_alts) bndr alts sequel
514 ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
517 -- StgCase: Normal case.
518 ilxExpr eenv@(IlxEEnv env live) (StgCase scrut live_in_case live_in_alts bndr _ alts) sequel
519 = vcat [ilxWipe env (uniqSetToList (live `minusUniqSet` live_in_case)),
520 ilxExpr (IlxEEnv (ilxPlaceStgCaseScrut env) live_in_case) scrut (Jump join_lbl),
522 --ilxWipe env (uniqSetToList (live_in_case `minusUniqSet` live_in_alts)),
523 --ilxAlts (IlxEEnv env live_in_alts) bndr alts sequel
524 ilxAlts (IlxEEnv env live_in_case) bndr alts sequel
527 join_lbl = mkJoinLabel bndr
529 -- Wipe out locals and arguments that are no longer in use, to
530 -- prevent space leaks. If the VM is implemented 100% correctly then
531 -- this should probably not be needed, as the live variable analysis
532 -- in the JIT would tell the GC that these locals and arguments are
533 -- no longer live. However I'm putting it in here so we can
534 -- check out if it helps.
536 -- Also, in any case this doesn't capture everything we need. e.g.
537 -- when making a call:
539 -- where x is not used in the alternatives, then the variable x
540 -- is no longer live from the point it is transferred to the call
541 -- onwards. We should expunge "live_in_case - live_in_alts" right
542 -- before making the call, not after returning from the call....
544 -- Strictly speaking we also don't need to do this for primitive
545 -- values such as integers and addresses, i.e. things not
546 -- mapped down to GC'able objects.
548 = vcat (map (ilxWipeOne env) (filter (not.isVoidIlxRepId) ids))
551 = case lookupIlxVarEnv env id of
552 Just Local -> text "ldloca " <+> pprId id <+> text "initobj" <+> (pprIlxTypeL env (idIlxRepType id))
553 Just Arg -> text "deadarg " <+> pprId id <+> text "," <+> (pprIlxTypeL env (idIlxRepType id))
554 Just (CloVar _) -> ilxComment (text "not yet wiping closure variable" <+> pprId id )
555 _ -> ilxComment (text "cannot wipe non-local/non-argument" <+> pprId id )
559 ----------------------
561 ilxAlts :: IlxEEnv -> Id -> StgCaseAlts -> Sequel -> SDoc
562 ilxAlts eenv@(IlxEEnv env live) bndr alts sequel
563 -- At the join label, the result is on top
565 = vcat [store_in_bndr,
566 do_case_analysis alts
569 scrut_rep_ty = deepIlxRepType (idType bndr)
571 store_in_bndr | isDeadBinder bndr = empty
572 | isVoidIlxRepId bndr
573 = ilxComment (text "ignoring store of zero-rep value to be analyzed")
574 | otherwise = text "dup" $$ (text "stloc" <+> pprId bndr)
576 do_case_analysis (StgAlgAlts _ [] deflt)
579 do_case_analysis (StgAlgAlts _ args deflt)
580 = do_alg_alts ([1..] `zip` args) deflt
582 do_case_analysis (StgPrimAlts _ alts deflt)
583 = do_prim_alts ([1..] `zip` alts) $$ do_deflt deflt
585 do_alg_alts [(i, alt@(data_con,bndrs,used_flags, rhs))] StgNoDefault | isUnboxedTupleCon data_con
586 -- Collapse the analysis of unboxed tuples where
587 -- some or all elements are zero-sized
589 -- TO DO: add bndrs to set of live variables
591 [h] -> bind_collapse bndrs used_flags <+> do_rhs_no_pop alt_env rhs
592 _ -> bind_components alt_env dcon' bndrs 0 used_flags <+> do_rhs alt_env rhs
594 bndrs' = filter (not. isVoidIlxRepId) bndrs
595 -- Replacement unboxed tuple type constructor, used if any of the
596 -- arguments have zero-size and more than one remains.
597 dcon' = tupleCon Unboxed (length bndrs')
599 alt_env = IlxEEnv (ilxPlaceAlt env i) live
600 --alt_env = IlxEEnv (ilxPlaceAlt env i)
602 bind_collapse [] _ = panic "bind_collapse: unary element not found"
603 bind_collapse (h:t) (is_used:used_flags)
604 | isVoidIlxRepId h = ilxComment (text "zero-rep binding eliminated") <+> (bind_collapse t used_flags)
605 | not is_used = ilxComment (text "not used") <+> text "pop"
606 | otherwise = text "stloc" <+> pprId h
609 do_alg_alts [(i, alt@(data_con,bndrs,used_flags, rhs))] StgNoDefault
610 = vcat [text "castdata" <+> sep [pprIlxTypeR env scrut_rep_ty <> comma,
611 ilxConRef env data_con],
612 do_alg_alt (IlxEEnv (ilxPlaceAlt env i) live) alt
615 do_alg_alts alts deflt
616 = vcat [text "datacase" <+> sep [pprIlxTypeR env scrut_rep_ty,text ",",
617 pprSepWithCommas pp_case labels_w_alts],
619 vcat (map do_labelled_alg_alt labels_w_alts)
622 pp_case (i, (lbl, (data_con, _, _, _))) = parens (ilxConRef env data_con <> comma <> pprIlxLabel lbl)
623 labels_w_alts = [(i,(mkAltLabel bndr i, alt)) | (i, alt) <- alts]
625 do_prim_alts [] = empty
626 do_prim_alts ((i, (lit,alt)) : alts)
627 = vcat [text "dup", pushLit (ilxPlacePrimAltLit env i) lit, text "bne.un" <+> pprIlxLabel lbl,
628 do_rhs (IlxEEnv (ilxPlaceAlt env i) live) alt,
629 ilxLabel lbl, do_prim_alts alts]
631 lbl = mkAltLabel bndr i
633 do_labelled_alg_alt (i,(lbl, alt))
634 = ilxLabel lbl $$ do_alg_alt (IlxEEnv (ilxPlaceAlt env i) live) alt
636 do_alg_alt alt_eenv (data_con, bndrs, used_flags, rhs)
637 = vcat [bind_components alt_eenv data_con bndrs 0 used_flags,
641 bind_components alt_eenv data_con [] n _ = empty
642 bind_components alt_eenv data_con (h:t) n (is_used:used_flags)
644 -- don't increase the count in this case
645 = ilxComment (text "zero-rep binding eliminated")
646 <+> bind_components alt_eenv data_con t n used_flags
648 = bind_component alt_eenv data_con h is_used n
649 <+> bind_components alt_eenv data_con t (n + 1) used_flags
651 bind_component alt_eenv@(IlxEEnv alt_env _) data_con bndr is_used reduced_fld_no
653 = ilxComment (text "not used")
654 | isVoidIlxRepId bndr
655 = ilxComment (text "ignoring bind of zero-rep variable")
656 | otherwise = vcat [text "dup",
657 ld_data alt_env data_con reduced_fld_no bndr,
658 text "stloc" <+> pprId bndr]
660 do_deflt (StgBindDefault rhs) = do_rhs (IlxEEnv (ilxPlaceStgBindDefault env) live) rhs
661 do_deflt StgNoDefault = empty
664 | isVoidIlxRepId bndr = do_rhs_no_pop alt_eenv rhs -- void on the stack, nothing to pop
665 | otherwise = text "pop" $$ do_rhs_no_pop alt_eenv rhs -- drop the value
667 do_rhs_no_pop alt_env rhs = ilxExpr alt_env rhs sequel
669 ld_data alt_env data_con reduced_fld_no bndr
670 | isUnboxedTupleCon data_con
671 = text "ldfld" <+> sep [text "!" <> integer reduced_fld_no,
672 pprIlxTypeR alt_env scrut_rep_ty <> text "::fld" <> integer reduced_fld_no]
674 = text "lddata" <+> sep [pprIlxTypeR alt_env scrut_rep_ty <> comma,
675 ilxConRef env data_con <> comma,
676 integer reduced_fld_no]
679 -------------------------
685 -- Constants of unlifted types are represented as
686 -- applications to no arguments.
687 ilxFunApp env fun [] _ | isUnLiftedType (idType fun)
690 ilxFunApp env fun args tail_call
692 -- ldloc f function of type forall a. a->a
693 -- ldloc x arg of type Int
694 -- .tail callfunc <Int32> (!0) --> !0
696 vcat [pushId env fun,ilxFunAppArgs env 0 (idIlxRepType fun) args tail_call known_clo]
699 case lookupIlxBindEnv env fun of
700 Just (place, StgRhsClosure _ _ _ Updatable _ _) -> Nothing
701 Just (place, StgRhsClosure _ _ fvs _ args _) -> Just (place,fun,args,fvs)
702 _ -> trace (show fun ++ " --> " ++ show (arityLowerBound (idArityInfo fun))) Nothing
704 -- Push as many arguments as ILX allows us to in one go.
705 -- Recurse until we're done.
706 ilxFunAppArgs env num_sofar funty args tail_call known_clo
707 = vcat [vcat (ilxMapPlaceArgs num_sofar pushArgWithVoids env now_args),
708 call_instr <+> now_args_text
710 <+> (pprIlxTypeR env_after_now_tyvs later_ty),
714 now_args_text = hsep (map (pprIlxArgInfo env_after_now_tyvs) now_arg_tys)
716 (now_args,now_arg_tys,env_after_now_tyvs,later_args,later_ty) =
718 (StgTypeArg v:rest) -> get_type_args ilxBestTypeArity args env funty
719 _ -> get_term_args ilxBestTermArity args env funty
721 -- Only apply up to maxArity real (non-type) arguments
722 -- at a time. ILX should, in principle, allow us to apply
723 -- arbitrary numbers, but you will get more succinct
724 -- (and perhaps more efficient) IL code
725 -- if you apply in clumps according to its maxArity setting.
726 -- This is because it has to unwind the stack and store it away
727 -- in local variables to do the partial applications.
729 -- Similarly, ILX only allows one type application at a time, at
730 -- least until we implement unwinding the stack for this case.
732 -- NB: In the future we may have to be more careful
733 -- all the way through
734 -- this file to bind type variables as we move through
735 -- type abstractions and "forall" types. This would apply
736 -- especially if the type variables were ever bound by expressions
737 -- involving the type variables.
739 -- This part strips off at most "max" term applications or one type application
740 get_type_args 0 args env funty = ([],[],env,args,funty)
741 get_type_args max args env (NoteTy _ ty) =
742 trace "IlxGen Internal Error: non representation type passed to get_args" (get_type_args max args env ty)
743 get_type_args max ((arg@(StgTypeArg v)):rest) env (ForAllTy tv rem_funty)
744 = if isIlxTyVar tv then
745 let env2 = extendIlxEnvWithFormalTyVars env [tv] in
746 let rest_ty = deepIlxRepType (substTy (mkTyVarSubst [tv] [v]) rem_funty) in
747 let (now,now_tys,env3,later,later_ty) = get_type_args (max - 1) rest env rest_ty in
748 let arg_ty = mkTyVarTy tv in
749 (arg:now,(arg,arg_ty):now_tys,env2, later, later_ty)
751 get_type_args max rest env rem_funty -- ? subst??
752 get_type_args _ (StgTypeArg _:_) _ _ = trace "IlxGen Internal Error: get_type_args could not get ForAllTy for corresponding arg" ([],[],env,[],funty)
753 get_type_args _ args env funty = ([],[],env,args,funty)
755 -- We could probably skip some void-rep arguments. Instead we
756 -- emit "ldvoid" for these and let ILXASM optimize them away.
757 -- get_term_args max (h@(StgVarArg v):t) env (FunTy dom ran) | isVoidIlxRepId v
758 -- = get_term_args max t env ran
759 get_term_args max args env (NoteTy _ ty) =
761 trace "IlxGen Internal Error: non representation type passed to get_term_args" (get_term_args max args env ty)
762 get_term_args 0 args env funty = ([],[],env,args,funty)
764 get_term_args _ (args@(StgTypeArg _:_)) env funty = ([],[],env,args,funty)
765 get_term_args max (h:t) env (FunTy dom ran) =
766 let (now,now_tys,env2,later,later_ty) = get_term_args (max - 1) t env ran in
767 (h:now, (h,dom):now_tys,env2,later,later_ty)
768 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)
769 get_term_args max args env funty = ([],[],env,args,funty)
771 -- Are there any remaining arguments?
772 done = case later_args of
776 -- If so, generate the subsequent calls.
777 later = if done then text "// done"
778 else ilxFunAppArgs env (num_sofar + length now_args) later_ty later_args tail_call Nothing
780 -- Work out whether to issue a direct call a known closure (callclo) or
781 -- an indirect call (callfunc). Basically, see if the identifier has
782 -- been let-bound, and then check we are applying exactly the right
783 -- number of arguments. Also check that it's not a thunk (actually, this
784 -- is done up above).
786 -- The nasty "all" check makes sure that
787 -- the set of type variables in scope at the callsite is a superset
788 -- of the set of type variables needed for the direct call. This is
789 -- is needed because not all of the type variables captured by a
790 -- let-bound binding will get propogated down to the callsite, and
791 -- the ILX system of polymorphism demands that the free type variables
792 -- get reapplied when we issue the direct "callclo". The
793 -- type variables are in reality also "bound up" in the closure that is
794 -- passed as the first argument, so when we do an indirect call
795 -- to that closure we're fine, which is why we don't need them in
796 -- the "callfunc" case.
799 Just (known_env,fun,needed,fvs) | (length needed == length args) &&
800 all (\x -> elemIlxTyVarEnv x env) free_ilx_tvs ->
801 vcat [text "callclo class",
802 nameReference env (idName fun) <+> squotes (ilxEnvQualifyByModule env (ppr fun)),
803 pprTypeArgs pprIlxTypeR env (map mkTyVarTy free_ilx_tvs)]
806 (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
807 otherwise -> text "callfunc"
809 if (tail_call && done) then text "tail." <+> basic_call_instr
810 else basic_call_instr
813 --------------------------
814 -- Print the arg info at the call site
815 -- For type args we are, at the moment, required to
816 -- give both the actual and the formal (bound). The formal
817 -- bound is always System.Object at the moment (bounds are
818 -- not properly implemented in ILXASM in any case, and nor do
819 -- we plan on making use og them) For
820 -- non-type args the actuals are on the stack, and we just give the
822 pprIlxArgInfo env (StgTypeArg arg,ty) =
823 angleBrackets (pprIlxTypeR env (deepIlxRepType arg) <+> ilxComment (text "actual for tyvar")) <+> text "<class [mscorlib] System.Object>"
824 pprIlxArgInfo env (_,ty) =
825 parens (pprIlxTypeL env ty)
828 ----------------------------
829 -- Code for a binding
830 ilxBind :: IlxEEnv -> StgBinding -> SDoc
831 ilxBind eenv@(IlxEEnv env _) bind =
832 vcat [vcat (map (ilxRhs env rec) pairs),
833 vcat (map (ilxFixupRec env rec) pairs)]
835 rec = ilxRecIds1 bind
836 pairs = ilxPairs1 bind
839 ----------------------------
840 -- Allocate a closure or constructor. Fix up recursive definitions.
841 ilxRhs :: IlxEnv -> [Id] -> (Id, StgRhs) -> SDoc
843 ilxRhs env rec (bndr, _) | isVoidIlxRepId bndr
846 ilxRhs env rec (bndr, StgRhsCon _ con args)
847 = vcat [text " /* ilxRhs:StgRhsCon */ " <+> ilxConApp env con args,
848 text "stloc" <+> pprId bndr
851 ilxRhs env rec (bndr, StgRhsClosure _ _ fvs upd args rhs)
852 = -- Assume .closure v<any A>(int64,!A) {
853 -- .apply <any B> (int32) (B) { ... }
856 -- let v = \B (x:int32) (y:B). ...
858 -- newclo v<int32>(int64,!0)
860 vcat [vcat (map pushFv free_vs),
861 (if null free_non_ilx_tvs then empty else (ilxComment (text "ignored some higher order type arguments in application - code will be non-verifiable"))),
862 text "newclo" <+> clotext,
863 text "stloc" <+> pprId bndr
866 pushFv id = if elem id rec then text "ldnull" else pushId env id
867 (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
868 clotext = pprIlxBoxedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs)
870 ilxFixupRec env rec (bndr, _) | isVoidIlxRepId bndr = ilxComment (text "no recursive fixup for void-rep-id")
872 ilxFixupRec env rec (bndr, StgRhsCon _ con args)
873 = text "// no recursive fixup"
875 ilxFixupRec env rec (bndr, StgRhsClosure _ _ fvs upd args rhs)
876 = vcat [vcat (map fixFv rec)]
878 fixFv recid = if elem recid fvs then
879 vcat [pushId env bndr,
881 text "stclofld" <+> clotext <> text "," <+> pprId recid]
882 else text "//no fixup needed for" <+> pprId recid
883 (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
884 clotext = pprIlxBoxedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs)
888 ---------------------------------------------
889 -- Code for a top-level binding in a module
890 ilxPairs binds = concat (map ilxPairs1 binds)
892 ilxPairs1 (StgNonRec _ bndr rhs) = [(bndr,rhs)]
893 ilxPairs1 (StgRec _ pairs) = pairs
895 ilxRecIds1 (StgNonRec _ bndr rhs) = []
896 ilxRecIds1 (StgRec _ pairs) = map fst pairs
898 ---------------------------------------------
899 -- Code for a top-level binding in a module
900 -- TODO: fix up recursions amongst CAF's
905 -- For the moment I've put in a completely spurious "reverse"...
907 -- Consider: make fixing up of CAF's part of ILX? i.e.
908 -- put static, constant, allocated datastructures into ILX.
910 stableSortBy :: (a -> a -> Ordering) -> [a] -> [a]
911 stableSortBy f (h:t) = insertBy f h (stableSortBy f t)
912 stableSortBy f [] = []
914 usedBy :: (Id,StgRhs) -> (Id,StgRhs) -> Ordering
915 usedBy (m,_) (_,StgRhsCon _ data_con args) | any (isArg m) args = LT
916 usedBy (m,_) (n,_) | m == n = EQ
917 usedBy (m,_) (_,_) = GT
919 isArg m (StgVarArg n) = (n == m)
923 ilxTopBind :: Module -> IlxEnv -> [(Id,StgRhs)] -> SDoc
924 --ilxTopBind mod env (StgNonRec _ bndr rhs) =
925 --ilxTopRhs env (bndr,rhs)
926 ilxTopBind mod env pairs =
927 vcat [text ".class" <+> pprId mod,
928 nest 2 (braces (nest 2 (vcat [empty,cctor, flds, empty])))]
930 cctor = vcat [text ".method static rtspecialname specialname void .cctor()",
932 (nest 2 (vcat [text ".maxstack 100",
933 text "ldstr \"LOG: initializing module" <+> pprId mod <+> text "\" call void ['mscorlib']System.Console::WriteLine(class [mscorlib]System.String)",
934 vcat (map (ilxTopRhs mod env) (stableSortBy usedBy pairs)),
935 text "ldstr \"LOG: initialized module" <+> pprId mod <+> text "\" call void ['mscorlib']System.Console::WriteLine(class [mscorlib]System.String)",
938 flds = vcat (map (ilxTopRhsStorage mod env) pairs)
940 --ilxTopRhs mod env (bndr, _) | isVoidIlxRepId bndr
943 ilxTopRhs mod env (bndr, StgRhsClosure _ _ fvs upd args rhs)
944 = vcat [vcat (map (pushId env) free_vs),
945 (if null free_non_ilx_tvs then empty else (ilxComment (text "ignored some higher order type arguments in application - code will be non verifiable...."))),
946 text "newclo" <+> pprIlxBoxedTyConApp env (ilxEnvQualifyByModule env (ppr bndr)) (map mkTyVarTy free_ilx_tvs),
947 text "stsfld" <+> pprFieldRef env (mod,bndTy,bndr)
950 (free_ilx_tvs, free_non_ilx_tvs,free_vs) = categorizeVars fvs
951 bndTy = idIlxRepType bndr
953 ilxTopRhs mod env (bndr, StgRhsCon _ data_con args)
954 = vcat [ text " /* ilxTopRhs: StgRhsCon */ " <+> ilxConApp env data_con args,
955 text "stsfld" <+> pprFieldRef env (mod,bndTy,bndr)
958 bndTy = idIlxRepType bndr
960 pprFieldRef env (mod,ty,id)
961 = pprIlxTypeL env ty <+> moduleReference env mod <+> pprId mod <> text "::" <> pprId id
963 ilxTopRhsStorage mod env (bndr, StgRhsClosure _ _ _ _ _ _)
964 = text ".field public static " <+> pprIlxTypeL env bndTy <+> pprId bndr
966 bndTy = idIlxRepType bndr
967 ilxTopRhsStorage mod env (bndr, StgRhsCon _ _ _)
968 = text ".field public static " <+> pprIlxTypeL env bndTy <+> pprId bndr
970 bndTy = idIlxRepType bndr
972 --------------------------------------
974 pushArgWithVoids = pushArg_aux True
975 pushArg = pushArg_aux False
977 pushArg_aux voids env (StgTypeArg ty) = empty
978 pushArg_aux voids env (StgVarArg var) = pushId_aux voids env var
979 pushArg_aux voids env (StgLitArg lit) = pushLit env lit
982 mapi f l = mapi_aux f l 0
985 mapi_aux f (h:t) n = f n h : mapi_aux f t (n+1)
987 --------------------------------------
989 pushId = pushId_aux False
991 pushId_aux :: Bool -> IlxEnv -> Id -> SDoc
992 pushId_aux voids _ id | isVoidIlxRepId id =
993 if voids then text "ldvoid" else ilxComment (text "pushId: void rep skipped")
995 = case lookupIlxVarEnv env var of
996 Just Arg -> text "ldarg" <+> pprId var
997 Just (CloVar n) -> text "ldenv" <+> int n
998 Just Local -> text "ldloc" <+> pprId var
1000 vcat [ilxComment (text "pushId (Top) " <+> pprId m),
1001 text "ldsfld" <+> pprIlxTypeL env (idIlxRepType var)
1002 <+> moduleReference env m <+> pprId (moduleName m) <> text "::" <> pprId var]
1005 vcat [ilxComment (text "pushId (import) " <+> pprIlxTopVar env var),
1006 text "ldsfld" <+> pprIlxTypeL env (idIlxRepType var)
1007 <+> pprIlxTopVar env var]
1009 --------------------------------------
1011 pushLit env (MachChar c) = text "ldc.i4" <+> int c
1012 pushLit env (MachStr s) = text "ldsflda char " <+> ilxEnvQualifyByExact env (text "string") -- pprFSInILStyle s
1013 pushLit env (MachInt i) = text "ldc.i4" <+> integer i
1014 pushLit env (MachInt64 i) = text "ldc.i8" <+> integer i
1015 pushLit env (MachWord w) = text "ldc.i4" <+> integer w <+> text "conv.u4"
1016 pushLit env (MachWord64 w) = text "ldc.i8" <+> integer w <+> text "conv.u8"
1017 pushLit env (MachFloat f) = text "ldc.r4" <+> rational f
1018 pushLit env (MachDouble f) = text "ldc.r8" <+> rational f
1019 pushLit env (MachLitLit _ _) = trace "WARNING: Cannot compile MachLitLit to ILX in IlxGen.lhs" (text "// MachLitLit!!! Not valid in ILX!!")
1020 pushLit env (MachAddr w) = text "ldc.i4 conv.i " <+> integer w
1024 | isGlobalName n = (nameReference env n) <> pprId (nameModule n) <> text "::" <> squotes (ppr (nameModule n) <> text "_" <> ppr (nameOccName n))
1025 | otherwise = pprId (nameOccName n)
1032 %************************************************************************
1034 \subsection{Printing types}
1036 %************************************************************************
1041 isVoidIlxRepType (NoteTy _ ty) = isVoidIlxRepType ty
1042 isVoidIlxRepType (TyConApp tc _) | (tyConPrimRep tc == VoidRep) = True
1043 isVoidIlxRepType (TyConApp tc tys)
1044 = case newTyConRep tc of
1045 Just rep_ty -> isVoidIlxRepType (applyTys rep_ty tys)
1047 isUnboxedTupleTyCon tc &&
1048 null (filter (not. isVoidIlxRepType) tys)
1049 isVoidIlxRepType _ = False
1051 isVoidIlxRepId id = isVoidIlxRepType (idType id)
1055 -- Get rid of all NoteTy and NewTy artifacts
1056 deepIlxRepType :: Type -> Type
1058 -- Eliminate state variables on left of arrow types...
1059 -- We have to be careful not to erase too much information here -
1060 -- the type may not accurately describe
1061 -- the "functionness" of the result. For example,
1065 -- which looks like an unboxed type. It isn't - it's
1066 -- just a function taking no arguments. As such, we
1067 -- have to rely on the context in which a function type is being
1068 -- used to know what to do.
1070 -- deepIlxRepType (FunTy l r) | isVoidIlxRepType l
1071 -- = deepIlxRepType r
1073 deepIlxRepType (FunTy l r)
1074 = FunTy (deepIlxRepType l) (deepIlxRepType r)
1076 deepIlxRepType (TyConApp tc tys)
1077 = case newTyConRep tc of
1078 Just rep_ty -> ASSERT( length tys == tyConArity tc )
1079 -- The assert should hold because deepIlxRepType should
1080 -- only be applied to *types* (of kind *)
1081 deepIlxRepType (applyTys rep_ty tys)
1083 -- collapse UnboxedTupleTyCon down when it contains VoidRep types.
1084 if isUnboxedTupleTyCon tc then
1085 let tys' = map deepIlxRepType (filter (not. isVoidIlxRepType) tys) in
1088 _ -> mkTupleTy Unboxed (length tys') tys'
1090 TyConApp tc (map deepIlxRepType tys)
1091 deepIlxRepType (AppTy f x) = AppTy (deepIlxRepType f) (deepIlxRepType x)
1092 deepIlxRepType (ForAllTy b ty) = ForAllTy b (deepIlxRepType ty)
1093 deepIlxRepType (NoteTy _ ty) = deepIlxRepType ty
1094 deepIlxRepType (PredTy p) = deepIlxRepType (predRepTy p)
1095 deepIlxRepType ty@(TyVarTy tv) = ty
1097 idIlxRepType id = deepIlxRepType (idType id)
1099 --------------------------
1100 -- Function types and type functions are implicitly thunkable.
1101 -- Some primitive type constructors are not thunkable.
1102 -- Everything else needs to be marked thunkable.
1103 pprIlxTypeL :: IlxEnv -> Type -> SDoc
1105 pprIlxTypeL env ty | isVoidIlxRepType ty
1106 = trace "pprIlxTypeL: VoidRep" pprIlxTypeR env ty
1108 pprIlxTypeL env ty@(FunTy arg res)
1109 = pprIlxTypeR env ty
1111 pprIlxTypeL env ty@(ForAllTy arg res)
1112 = pprIlxTypeR env ty
1114 pprIlxTypeL env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && null (tyConTyVars tc)
1115 = ilxComment (text "what the fuck?") <+> (pprIlxTypeR env ty)
1116 pprIlxTypeL env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && not (isIlxTyVar (hd (tyConTyVars tc)))
1117 = pprIlxTypeR env ty
1119 pprIlxTypeL env ty | isUnLiftedType ty -- must come after cases above because isUnLiftedType strips Forall's
1120 = pprIlxTypeR env ty
1123 = text "thunk" <> angleBrackets (pprIlxTypeR env ty)
1125 --------------------------
1126 -- Print non-thunkable version of type.
1129 pprIlxTypeR :: IlxEnv -> Type -> SDoc
1130 pprIlxTypeR env ty | isVoidIlxRepType ty = text "void"
1131 pprIlxTypeR env ty = pprIlxTypeR2 env ty
1133 pprIlxTypeR2 env ty@(AppTy f _) | isTyVarTy f = ilxComment (text "type app:" <+> pprId ty) <+> (text "class [mscorlib]System.Object")
1134 pprIlxTypeR2 env ty@(AppTy f x) = trace "pprIlxTypeR: should I be beta reducing types?!" (ilxComment (text "pprIlxTypeR: should I be beta reducing types...") <+> pprIlxTypeR env (applyTy f x))
1135 pprIlxTypeR2 env (TyVarTy tv) = pprIlxTyVar env tv
1137 -- The following is a special rule for types constructed out of
1138 -- higher kinds, e.g. Monad f or Functor f.
1140 -- The code below is not as general as it should be, but as I
1141 -- have no idea if this approach will even work, I'm going to
1142 -- just try it out on some simple cases arising from the prelude.
1143 pprIlxTypeR2 env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && null (tyConTyVars tc)
1144 = ilxComment (text "what the fuck? 2") <+> (pprIlxTypeR env (TyConApp tc t))
1145 pprIlxTypeR2 env ty@(TyConApp tc (h:t)) | isAlgTyCon tc && not (isIlxTyVar (hd (tyConTyVars tc)))
1146 = pprIlxTypeR env (TyConApp tc t)
1147 pprIlxTypeR2 env (TyConApp tc args) = pprIlxTyConApp env tc args
1149 -- nb. the only legitimate place for VoidIlxRepTypes to occur in normalized IlxRepTypes
1150 -- is on the left of an arrow
1151 -- We could probably eliminate all but a final occurrence of these.
1152 --pprIlxTypeR2 env (FunTy arg res@(FunTy _ _)) | isVoidIlxRepType arg
1153 -- = pprIlxTypeR env res
1154 pprIlxTypeR2 env (FunTy arg res) | isVoidIlxRepType arg
1155 = parens (text "func () -->" <+> pprIlxTypeR env res)
1156 pprIlxTypeR2 env (FunTy arg res)
1157 = pprIlxFunTy (pprIlxTypeL env arg) (pprIlxTypeR env res)
1159 pprIlxTypeR2 env ty@(ForAllTy tv body_ty) | isIlxTyVar tv
1160 = parens (text "forall" <+> pprTyVarBinders env' [tv] <+> nest 2 (pprIlxTypeR env' body_ty))
1162 env' = extendIlxEnvWithFormalTyVars env [tv]
1164 pprIlxTypeR2 env ty@(ForAllTy tv body_ty) | otherwise
1165 = ilxComment (text "higher order type var " <+> pprId tv) <+>
1166 pprIlxFunTy (text "class [mscorlib]System.Object") (pprIlxTypeR env body_ty)
1168 pprIlxTypeR2 env (NoteTy _ ty)
1169 = trace "WARNING! non-representation type given to pprIlxTypeR: see generated ILX for context where this occurs"
1170 (vcat [text "/* WARNING! non-representation type given to pprIlxTypeR! */",
1171 pprIlxTypeR env ty ])
1174 pprIlxFunTy dom ran = parens (hsep [text "func",parens dom,text "-->", ran])
1176 pprIlxTyConApp env tc args =
1177 case lookupUFM tyPrimConTable (getUnique tc) of
1178 Just f -> f env args
1180 (if isUnboxedTupleTyCon tc then pprIlxUnBoxedTyConApp else pprIlxBoxedTyConApp)
1181 env ((nameReference env (getName tc)) <> (ppr tc)) args
1183 pprIlxUnBoxedTyConApp env tcdoc args = text "value class" <+> tcdoc <> pprTypeArgs pprIlxTypeL env args
1184 pprIlxBoxedTyConApp env tcdoc args = text "class" <+> tcdoc <> pprTypeArgs pprIlxTypeR env args
1186 -- Returns e.g: <Int32, Bool>
1187 pprTypeArgs f env tys = pprTypeArgs_aux f env (filter (not . isVoidIlxRepType) tys)
1189 pprTypeArgs_aux f env [] = empty
1190 pprTypeArgs_aux f env tys = angleBrackets (pprSepWithCommas (f env) tys)
1193 pprTyVarBinders :: IlxEnv -> [TyVar] -> SDoc
1194 -- Returns e.g: <class [mscorlib]System.Object> <class [mscorlib]System.Object>
1195 -- plus a new environment with the type variables added.
1196 pprTyVarBinders env [] = empty
1197 pprTyVarBinders env tvs = angleBrackets (pprSepWithCommas (pprTyVarBinder_aux env) tvs)
1199 pprTyVarBinder :: IlxEnv -> TyVar -> SDoc
1200 pprTyVarBinder env tv =
1201 if isIlxTyVar tv then
1202 angleBrackets (pprTyVarBinder_aux env tv)
1204 ilxComment (text "higher order tyvar" <+> pprId tv <+>
1205 text ":" <+> pprIlxTypeR env (tyVarKind tv)) <+>
1206 ilxComment (text "omitted")
1207 -- parens (text "class [mscorlib]System.Object" <+> pprId tv)
1210 pprTyVarBinder_aux env tv =
1211 ilxComment (text "tyvar" <+> pprId tv <+> text ":" <+>
1212 pprIlxTypeR env (tyVarKind tv)) <+>
1213 (text "class [mscorlib]System.Object")
1215 -- Only a subset of Haskell types can be generalized using the type quantification
1218 ( h == liftedTypeKind) ||
1219 ( h == unliftedTypeKind) ||
1220 ( h == openTypeKind)
1222 isIlxTyVar v = isTyVar v && isIlxForAllKind (tyVarKind v)
1224 categorizeVars fvs = (ilx_tvs, non_ilx_tvs, vs)
1226 (tvs, vs) = partition isTyVar fvs
1227 (ilx_tvs, non_ilx_tvs) = categorizeTyVars tvs
1229 categorizeTyVars tyvs = partition isIlxTyVar tyvs
1231 pprValArgTys ppr_ty env tys = parens (pprSepWithCommas (ppr_ty env) tys)
1233 pprId id = squotes (ppr id)
1234 squotes s = text "'" <> s <> text "'"
1238 %************************************************************************
1242 %************************************************************************
1245 type IlxTyEnv = [TyVar]
1248 -- Nb. There is currently no distinction between the kinds of type variables.
1249 -- We may need to add this to print out correct numbers, esp. for
1251 extendIlxTyEnvWithFreeTyVars env tyvars = env ++ mkIlxTyEnv tyvars -- bound by .closure x<...> in a closure declared with type parameters
1252 extendIlxTyEnvWithFormalTyVars env tyvars = env ++ mkIlxTyEnv tyvars -- bound by "forall <...>" in a type
1253 extendIlxTyEnvWithTyArgs env tyvars = env ++ mkIlxTyEnv tyvars -- bound by "<...>" in a closure implementing a universal type
1255 formalIlxTyEnv tyvars = mkIlxTyEnv tyvars
1256 mkIlxTyEnv tyvars = [ v | v <- tyvars, isIlxTyVar v ]
1258 pprIlxTyVarInIlxTyEnv :: IlxTyEnv -> TyVar -> SDoc
1259 pprIlxTyVarInIlxTyEnv tv_env tv
1263 = pprTrace "pprIlxTyVar" (pprId tv <+> text "tv_env = { "
1264 <+> pprSepWithCommas (\x -> pprId x <+> text ":"
1265 <+> pprIlxTypeR (IlxEnv (thisModule, tv_env, emptyVarEnv, emptyVarEnv, (empty,empty),False)) (tyVarKind x)) tv_env <+> text "}")
1266 (char '!' <> pprId tv)
1268 = {- pprTrace "go" (ppr (tyVarName tv) <+> ppr (tyVarName x)) -}
1269 (if tyVarName x== tyVarName tv then char '!' <> int n <+> ilxComment (char '!' <> pprId tv)
1273 data HowBound = Top Module -- Bound in a modules
1274 | Arg -- Arguments to the enclosing closure
1275 | CloVar Int -- A free variable of the enclosing closure
1276 -- The int is the index of the field in the
1278 | Local -- Local let binding
1280 -- The SDoc prints a unique name for the syntactic block we're currently processing,
1281 -- e.g. Foo_bar_baz when inside closure baz inside closure bar inside module Foo.
1282 data IlxEnv = IlxEnv (Module, IlxTyEnv, IdEnv HowBound,IdEnv (IlxEnv, StgRhs), Place,Bool)
1283 type Place = (SDoc,SDoc)
1284 thisModule = mkHomeModule (mkModuleName "")
1286 pprIlxTyVar (IlxEnv (_, tv_env, _, _,_,_)) tv = pprIlxTyVarInIlxTyEnv tv_env tv
1288 emptyIlxEnv :: Bool -> Module -> IlxEnv
1289 emptyIlxEnv trace mod = IlxEnv (mod, emptyIlxTyEnv, emptyVarEnv, emptyVarEnv, (ppr mod,empty),trace)
1291 nextPlace place sdoc = place <> sdoc
1292 usePlace place sdoc = place <> sdoc
1294 ilxEnvSetPlace (IlxEnv (m, tv_env, id_env, bind_env, (mod,exact),tr)) sdoc
1295 = IlxEnv (m, tv_env, id_env, bind_env, (mod, sdoc),tr)
1296 ilxEnvNextPlace (IlxEnv (m, tv_env, id_env, bind_env, (mod,exact),tr)) sdoc
1297 = IlxEnv (m, tv_env, id_env, bind_env, (mod, nextPlace exact sdoc),tr)
1298 ilxEnvQualifyByModule (IlxEnv (_, _, _, _,(mod,_),_)) sdoc = usePlace mod sdoc
1299 ilxEnvQualifyByExact (IlxEnv (_, _, _, _,(mod,exact),_)) sdoc = usePlace mod sdoc <> usePlace exact sdoc
1301 ilxPlaceStgBindDefault env = ilxEnvNextPlace env (text "D")
1302 ilxPlaceStgRhsClosure env bndr = ilxEnvSetPlace env (ppr bndr) -- binders are already unique
1303 ilxPlaceStgCaseScrut env = ilxEnvNextPlace env (text "S")
1305 ilxPlaceAlt :: IlxEnv -> Int -> IlxEnv
1306 ilxPlaceAlt env i = ilxEnvNextPlace env (text "a" <> int i)
1307 ilxPlacePrimAltLit env i = ilxEnvNextPlace env (text "P" <> int i)
1308 ilxMapPlaceArgs start f env args = [ f (ilxEnvNextPlace env (text "A" <> int i)) a | (i,a) <- [start..] `zip` args ]
1309 ilxMapPlaceAlts f env alts = [ f (ilxPlaceAlt env i) alt | (i,alt) <- [1..] `zip` alts ]
1311 extendIlxEnvWithFreeTyVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
1312 = IlxEnv (mod, extendIlxTyEnvWithFreeTyVars tv_env tyvars,id_env, bind_env, place,tr)
1314 extendIlxEnvWithFormalTyVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
1315 = IlxEnv (mod, extendIlxTyEnvWithFormalTyVars tv_env tyvars,id_env, bind_env, place,tr)
1317 extendIlxEnvWithTyArgs (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) tyvars
1318 = IlxEnv (mod, extendIlxTyEnvWithTyArgs tv_env tyvars,id_env, bind_env, place,tr)
1320 extendIlxEnvWithArgs :: IlxEnv -> [Var] -> IlxEnv
1321 extendIlxEnvWithArgs (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) args
1322 = IlxEnv (mod, extendIlxTyEnvWithTyArgs tv_env [tv | tv <- args, isIlxTyVar tv],
1323 extendVarEnvList id_env [(v,Arg) | v <- args, not (isIlxTyVar v)],
1326 extendIlxEnvWithFreeVars (IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) args
1328 extendIlxTyEnvWithFreeTyVars tv_env [tv | tv <- args, isIlxTyVar tv],
1329 extendVarEnvList id_env (clovs 0 args),
1334 clovs n (x:xs) = if not (isIlxTyVar x) then (x,CloVar n):clovs (n+1) xs else clovs n xs
1336 extendIlxEnvWithBinds env@(IlxEnv (mod, tv_env, id_env, bind_env, place,tr)) bnds
1337 = IlxEnv (mod, tv_env, id_env,
1338 extendVarEnvList bind_env [(v,(env,rhs)) | (v,rhs) <- bnds],
1341 extendIlxEnvWithLocals (IlxEnv (m, tv_env, id_env, bind_env, p,tr)) locals
1342 = IlxEnv (m, tv_env,
1343 extendVarEnvList id_env [(v,Local) | (LocalId v,_) <- locals],
1344 extendVarEnvList bind_env [(v,(env,rhs)) | (LocalId v,Just (env,rhs)) <- locals],
1346 extendIlxEnvWithTops env@(IlxEnv (m, tv_env, id_env, bind_env, place,tr)) mod binds
1347 = IlxEnv (m, tv_env,
1348 extendVarEnvList id_env [(bndr,Top mod) | (bndr,rhs) <- binds],
1349 extendVarEnvList bind_env [(bndr,(env, rhs)) | (bndr,rhs) <- binds],
1352 formalIlxEnv (IlxEnv (m, tv_env, id_env, bind_env, place, tr)) tyvars
1353 = IlxEnv (m, formalIlxTyEnv tyvars, id_env, bind_env, place, tr)
1355 elemIlxTyVarEnv var env@(IlxEnv (_, tv_env, _,_,_,_)) = elem var tv_env
1356 elemIlxVarEnv var env@(IlxEnv (_, _, id_env,_,_,_)) = elemVarEnv var id_env
1357 lookupIlxVarEnv env@(IlxEnv (_, _, id_env,_,_,_)) var = lookupVarEnv id_env var
1358 lookupIlxBindEnv env@(IlxEnv (_, _, _, bind_env,_,_)) var = lookupVarEnv bind_env var
1364 type IlxLabel = SDoc
1366 pprIlxLabel lbl = lbl
1368 mkJoinLabel :: Id -> IlxLabel
1369 mkJoinLabel v = text "J_" <> ppr v
1371 mkAltLabel :: Id -> Int -> IlxLabel
1372 mkAltLabel v n = text "A" <> int n <> ppr v
1374 ilxLabel :: IlxLabel -> SDoc
1375 ilxLabel lbl = line $$ (pprIlxLabel lbl <> colon)
1379 %************************************************************************
1381 \subsection{Local pretty helper functions}
1383 %************************************************************************
1386 pprSepWithCommas :: (a -> SDoc) -> [a] -> SDoc
1387 pprSepWithCommas pp xs = sep (punctuate comma (map pp xs))
1388 ilxComment pp = text "/*" <+> pp <+> text "*/"
1389 singleQuotes pp = char '\'' <> pp <> char '\''
1391 line = text "// ----------------------------------"
1393 hscOptionQual = if opt_SimplDoEtaReduction then text ".O" else text ".Onot"
1395 nameReference (IlxEnv (thisMod, _, _, _, _, _)) n
1396 | isLocalName n = text "/* local */"
1397 | thisMod == nameModule n = text ""
1398 | isDllName n = brackets ((text "ilx") <+> singleQuotes (ppr (modulePackage (nameModule n)) <> hscOptionQual))
1399 | otherwise = brackets ((text ".module") <+> (text "ilx") <+> singleQuotes (pprModuleName (moduleName (nameModule n)) <> hscOptionQual))
1401 moduleReference (IlxEnv (thisMod, _, _, _, _, _)) m
1402 | thisMod == m = text ""
1403 | isHomeModule m = brackets ((text ".module") <+> (text "ilx") <+> singleQuotes (pprModuleName (moduleName m) <> hscOptionQual))
1404 | otherwise = brackets ((text "ilx") <+> singleQuotes (ppr (modulePackage m) <> hscOptionQual))
1407 if preludePackage == opt_InPackage then brackets (text ".module ilx PrelGHC" <> hscOptionQual)
1408 else brackets (text "ilx" <+> text (_UNPK_ preludePackage) <> hscOptionQual)
1411 if preludePackage == opt_InPackage then brackets (text ".module ilx PrelBase" <> hscOptionQual)
1412 else brackets (text "ilx" <+> text (_UNPK_ preludePackage) <> hscOptionQual)
1414 ------------------------------------------------
1415 -- This code is copied from absCSyn/CString.lhs,
1416 -- and modified to do the correct thing! It's
1417 -- still a mess though. Also, still have to do the
1418 -- right thing for embedded nulls.
1420 pprFSInILStyle :: FAST_STRING -> SDoc
1421 pprFSInILStyle fs = doubleQuotes (text (stringToC (_UNPK_ fs)))
1423 stringToC :: String -> String
1424 -- Convert a string to the form required by C in a C literal string
1425 -- Tthe hassle is what to do w/ strings like "ESC 0"...
1427 stringToC [c] = charToC c
1429 -- if we have something "octifiable" in "c", we'd better "octify"
1430 -- the rest of the string, too.
1431 = if (c < ' ' || c > '~')
1432 then (charToC c) ++ (concat (map char_to_C cs))
1433 else (charToC c) ++ (stringToC cs)
1435 char_to_C c | c == '\n' = "\\n" -- use C escapes when we can
1437 | c == '\b' = "\\b" -- ToDo: chk some of these...
1442 | otherwise = '\\' : (trigraph (ord c))
1444 charToC :: Char -> String
1445 -- Convert a character to the form reqd in a C character literal
1446 charToC c = if (c >= ' ' && c <= '~') -- non-portable...
1459 else '\\' : (trigraph (ord c))
1461 trigraph :: Int -> String
1463 = [chr ((n `div` 100) `rem` 10 + ord '0'),
1464 chr ((n `div` 10) `rem` 10 + ord '0'),
1465 chr (n `rem` 10 + ord '0')]
1470 %************************************************************************
1472 \subsection{PrimOps and Constructors}
1474 %************************************************************************
1477 ----------------------------
1478 -- Allocate a fresh constructor
1480 ilxConApp env data_con args
1481 | isUnboxedTupleCon data_con
1482 = let tm_args' = filter (not. isVoidIlxRepType . stgArgType) tm_args in
1485 -- Collapse the construction of an unboxed tuple type where
1486 -- every element is zero-sized
1487 vcat (ilxMapPlaceArgs 0 pushArg env tm_args')
1489 -- Minimize the construction of an unboxed tuple type, which
1490 -- may contain zero-sized elements. Recompute all the
1491 -- bits and pieces from the simpler case below for the new data
1492 -- type constructor....
1493 let data_con' = tupleCon Unboxed (length tm_args') in
1494 let rep_ty_args' = filter (not . isVoidIlxRepType) rep_ty_args in
1496 let tycon' = dataConTyCon data_con' in
1497 let (formal_tyvars', formal_tau_ty') = splitForAllTys (dataConRepType data_con') in
1498 let (formal_arg_tys', _) = splitFunTys formal_tau_ty' in
1499 let formal_env' = formalIlxEnv env formal_tyvars' in
1501 vcat [vcat (ilxMapPlaceArgs 0 pushArg env tm_args'),
1502 sep [text "newobj void ",
1503 pprIlxTyConApp env tycon' rep_ty_args',
1505 pprValArgTys pprIlxTypeR formal_env' (map deepIlxRepType formal_arg_tys')
1509 -- Now all other constructions
1510 = -- Assume C :: forall a. a -> T a -> T a
1511 -- ldloc x arg of type Int
1512 -- ldloc y arg of type T Int
1513 -- newdata classunion T<Int32>, C(!0, T <!0>)
1515 let tycon = dataConTyCon data_con in
1516 let (formal_tyvars, formal_tau_ty) = splitForAllTys (dataConRepType data_con) in
1517 let (formal_arg_tys, _) = splitFunTys formal_tau_ty in
1519 vcat [vcat (ilxMapPlaceArgs 0 pushArg env tm_args),
1520 sep [ text "newdata",
1521 nest 2 (pprIlxTyConApp env tycon rep_ty_args <> comma),
1522 nest 2 (ilxConRef env data_con)
1526 tycon = dataConTyCon data_con
1527 rep_ty_args = map deepIlxRepType ty_args
1528 (ty_args,tm_args) = if isAlgTyCon tycon then splitTyArgs (tyConTyVars tycon) args else splitTyArgs1 args
1530 -- split some type arguments off, throwing away the higher kinded ones for the moment
1531 -- base the higher-kinded checks off a corresponding list of formals
1532 splitTyArgs (htv:ttv) (StgTypeArg h:t)
1533 | isIlxTyVar htv = ((h:l), r)
1534 | otherwise = trace "splitTyArgs: threw away higher kinded type arg" (l, r)
1535 where (l,r) = splitTyArgs ttv t
1536 splitTyArgs _ l = ([],l)
1538 -- split some type arguments off, where none should be higher kinded
1539 splitTyArgs1 (StgTypeArg h:t)
1541 where (l,r) = splitTyArgs1 t
1542 splitTyArgs1 l = ([],l)
1545 ilxConRef env data_con
1546 = pprId data_con <> pprValArgTys pprIlxTypeL env' (map deepIlxRepType (filter (not . isVoidIlxRepType) arg_tys))
1548 (tyvars, tau_ty) = splitForAllTys (dataConRepType data_con)
1549 (arg_tys, _) = splitFunTys tau_ty
1550 env' = formalIlxEnv env tyvars
1553 tyPrimConTable :: UniqFM (IlxEnv -> [Type] -> SDoc)
1554 tyPrimConTable = listToUFM [(addrPrimTyConKey, (\_ _ -> repAddr)),
1555 -- (fileStreamPrimTyConKey, (\_ _ -> repFileStream)),
1556 (foreignObjPrimTyConKey, (\_ _ -> text "/* ForeignObj */ void *")),
1557 -- (stablePtrPrimTyConKey, (\_ _ -> text "/* StablePtr */ void *")),
1558 (charPrimTyConKey, (\_ _ -> repChar)),
1559 (wordPrimTyConKey, (\_ _ -> repWord)),
1560 (byteArrayPrimTyConKey, (\_ _ -> repByteArray)),
1561 (intPrimTyConKey, (\_ _ -> repInt)),
1562 (int64PrimTyConKey, (\_ _ -> repInt64)),
1563 (word64PrimTyConKey, (\_ _ -> repWord64)),
1564 (floatPrimTyConKey, (\_ _ -> text "float32")),
1565 (arrayPrimTyConKey, (\env [ty] -> pprIlxTypeL env ty <> text "[]")),
1566 (mutableArrayPrimTyConKey, (\env [_, ty] -> pprIlxTypeL env ty <> text "[]")),
1567 (mVarPrimTyConKey, (\env [_, ty] -> repMVar (pprIlxTypeL env ty))),
1568 (mutVarPrimTyConKey, (\env [ty1, ty2] -> repMutVar (pprIlxTypeL env ty1) (pprIlxTypeL env ty2))),
1569 (mutableByteArrayPrimTyConKey, (\_ _ -> repByteArray)),
1570 (threadIdPrimTyConKey, (\_ _ -> text "class [mscorlib]System.Threading.Thread /* ThreadId# */ ")),
1571 (doublePrimTyConKey, (\_ _ -> text "float64"))
1577 %************************************************************************
1579 \subsection{C Calls}
1581 %************************************************************************
1585 -- We eliminate voids in and around an IL C Call. We don't yet emit PInvoke stubs.
1586 -- We also do some type-directed translation for pinning Haskell-managed blobs
1587 -- of data as we throw them across the boundary.
1588 ilxCCall env (CCall (StaticTarget c) casm gc cconv) args ret_ty =
1589 ilxComment (text "C call <+> pprCLabelString c") <+>
1590 vcat [vcat (ilxMapPlaceArgs 0 pushCArg env args),
1591 text "call" <+> retdoc <+> text "class " <+> prelGHCReference <+> text "PrelGHC::" <+> pprCLabelString c <+> pprTypeArgs pprIlxTypeR env ty_args
1592 <+> pprCValArgTys pprIlxTypeL env (map deepIlxRepType (filter (not. isVoidIlxRepType) (map stgArgType tm_args))) ]
1595 if isVoidIlxRepType ret_ty then text "void"
1596 else pprIlxTypeR env (deepIlxRepType ret_ty)
1597 (ty_args,tm_args) = splitTyArgs1 args
1600 hasTyCon (TyConApp tc _) tc2 = tc == tc2
1601 hasTyCon _ _ = False
1603 isByteArrayCArgTy ty = hasTyCon ty byteArrayPrimTyCon || hasTyCon ty mutableByteArrayPrimTyCon
1604 isByteArrayCArg v = isByteArrayCArgTy (deepIlxRepType (idType v))
1605 pinCCallArg v = isByteArrayCArg v
1607 ilxAddrOfPinnedByteArr = text "ldc.i4 0 ldelema unsigned int8"
1609 pushCArg env arg@(StgVarArg v) | isByteArrayCArg v = pushArg env arg <+> text "dup stloc" <+> squotes (ilxEnvQualifyByExact env (ppr v) <> text "pin") <+> ilxAddrOfPinnedByteArr
1610 pushCArg env arg | otherwise = pushArg env arg
1612 pprCValArgTys f env tys = parens (pprSepWithCommas (pprCValArgTy f env) tys)
1613 pprCValArgTy f env ty | isByteArrayCArgTy ty = text "void *" <+> ilxComment (text "interior pointer into ByteArr#")
1614 pprCValArgTy f env ty | otherwise = f env ty
1619 %************************************************************************
1621 \subsection{PrimOps}
1623 %************************************************************************
1627 ilxPrimApp env (CCallOp ccall) args ret_ty = ilxCCall env ccall args ret_ty
1628 ilxPrimApp env op args ret_ty = ilxPrimOpTable op env args
1630 ilxMkBool = text "call class" <+> prelBaseReference <+>
1631 text "PrelBase_Bool" <+>
1632 prelGHCReference <+> text "GHC.support::mkBool(bool)"
1633 ilxCgt = text "cgt " <+> ilxMkBool
1634 ilxCge = text "clt ldc.i4 0 ceq " <+> ilxMkBool
1635 ilxClt = text "clt " <+> ilxMkBool
1636 ilxCle = text "cgt ldc.i4 0 ceq " <+> ilxMkBool
1637 ilxCeq = text "ceq " <+> ilxMkBool
1638 ilxCne = text "ceq ldc.i4 0 ceq " <+> ilxMkBool
1639 ilxCgtUn = text "cgt.un " <+> ilxMkBool
1640 ilxCgeUn = text "clt.un ldc.i4 0 ceq " <+> ilxMkBool
1641 ilxCltUn = text "clt.un " <+> ilxMkBool
1642 ilxCleUn = text "cgt.un ldc.i4 0 ceq " <+> ilxMkBool
1643 ldDummyInteger = text " ldc.i4 0 ldnull newobj void" <+> ilxUnboxedPairRep repInt repByteArray <+> text "::.ctor(!0,!1)"
1644 ldDummyInteger2 = text " ldc.i4 0 ldnull ldc.i4 0 ldnull newobj void" <+> ilxUnboxedQuadRep repInt repByteArray repInt repByteArray <+> text "::.ctor(!0,!1,!2,!3)"
1646 repByteArray = text "unsigned int8[] /* ByteArr# */ "
1647 repFileStream = text "void * /* FileStream# */ " -- text "class [mscorlib]System.IO.FileStream"
1648 repInt = text "int32"
1649 repWord = text "unsigned int32"
1650 repAddr = text "/* Addr */ void *"
1651 repInt64 = text "int64"
1652 repWord64 = text "unsigned int64"
1653 repChar = text "/* Char */ unsigned int8"
1654 repInteger = ilxUnboxedPairRep repInt repByteArray
1655 repIntegerPair = ilxUnboxedQuadRep repInt repByteArray repInt repByteArray
1656 repMVar ty = text "class " <+> prelGHCReference <+> text "PrelGHC_MVarzh" <+> ilxTyParams [ty]
1657 repMutVar _ ty2 = text "class " <+> prelGHCReference <+> text "PrelGHC_MutVarzh" <+> ilxTyParams [ty2]
1658 repWeak ty1 = text "class " <+> prelGHCReference <+> text "PrelGHC_Weakzh" <+> ilxTyParams [ty1]
1660 ilxParamsAux [] = empty
1661 ilxParamsAux [h] = h
1662 ilxParamsAux (h:t) = h <> text "," <+> ilxParamsAux t
1663 ilxParams [] = empty
1664 ilxParams l = parens (ilxParamsAux l)
1666 ilxTyParamsAux [] = empty
1667 ilxTyParamsAux [h] = h
1668 ilxTyParamsAux (h:t) = h <> text "," <+> ilxTyParamsAux t
1669 ilxTyParams [] = empty
1670 ilxTyParams l = angleBrackets (ilxTyParamsAux l)
1672 ilxMethA = text "!!0"
1674 ilxTyPair l r = ilxTyParams [l,r]
1675 ilxTyTriple l m r = ilxTyParams [l,m,r]
1676 ilxTyQuad l m1 m2 r = ilxTyParams [l,m1,m2,r]
1677 ilxUnboxedPairRep l r = text "value class" <+> prelGHCReference <+> text "PrelGHC_ZLzhzx2czhZR" <+> ilxTyPair l r
1678 ilxUnboxedTripleRep l m r = text "value class" <+> prelGHCReference <+> text "PrelGHC_ZLzhzx2czx2czhZR" <+> ilxTyTriple l m r
1679 ilxUnboxedQuadRep l m1 m2 r = text "value class" <+> prelGHCReference <+> text "PrelGHC_ZLzhzx2czx2czx2czhZR" <+> ilxTyQuad l m1 m2 r
1681 ilxMethodRef rty cls nm tyargs args = rty <+> cls <+> text "::" <> squotes (text nm) <> ilxTyParams tyargs <> ilxParams args
1683 ilxSupportClass = prelGHCReference <+> text "GHC.support"
1684 ilxSuppMeth rty nm tyargs args = ilxMethodRef rty ilxSupportClass nm tyargs args
1686 ilxPrimOpTable :: PrimOp -> IlxEnv -> [StgArg] -> SDoc
1689 CharGtOp -> simp_op ilxCgt
1690 CharGeOp -> simp_op ilxCge
1691 CharEqOp -> simp_op ilxCeq
1692 CharNeOp -> simp_op ilxCne
1693 CharLtOp -> simp_op ilxClt
1694 CharLeOp -> simp_op ilxCle
1696 OrdOp -> simp_op (text "conv.i4") -- chars represented by UInt32 (u4)
1697 ChrOp -> simp_op (text "conv.u4")
1699 IntGtOp -> simp_op ilxCgt
1700 IntGeOp -> simp_op ilxCge
1701 IntEqOp -> simp_op ilxCeq
1702 IntNeOp -> simp_op ilxCne
1703 IntLtOp -> simp_op ilxClt
1704 IntLeOp -> simp_op ilxCle
1706 WordGtOp -> simp_op ilxCgtUn -- words represented by UInt32 (u4)
1707 WordGeOp -> simp_op ilxCgeUn
1708 WordEqOp -> simp_op ilxCeq
1709 WordNeOp -> simp_op ilxCne
1710 WordLtOp -> simp_op ilxCltUn
1711 WordLeOp -> simp_op ilxCleUn
1713 AddrGtOp -> simp_op ilxCgt
1714 AddrGeOp -> simp_op ilxCge
1715 AddrEqOp -> simp_op ilxCeq
1716 AddrNeOp -> simp_op ilxCne
1717 AddrLtOp -> simp_op ilxClt
1718 AddrLeOp -> simp_op ilxCle
1720 FloatGtOp -> simp_op ilxCgt
1721 FloatGeOp -> simp_op ilxCge
1722 FloatEqOp -> simp_op ilxCeq
1723 FloatNeOp -> simp_op ilxCne
1724 FloatLtOp -> simp_op ilxClt
1725 FloatLeOp -> simp_op ilxCle
1727 DoubleGtOp -> simp_op ilxCgt
1728 DoubleGeOp -> simp_op ilxCge
1729 DoubleEqOp -> simp_op ilxCeq
1730 DoubleNeOp -> simp_op ilxCne
1731 DoubleLtOp -> simp_op ilxClt
1732 DoubleLeOp -> simp_op ilxCle
1734 -- Int#-related ops:
1735 IntAddOp -> simp_op (text "add")
1736 IntSubOp -> simp_op (text "sub")
1737 IntMulOp -> simp_op (text "mul")
1738 IntQuotOp -> simp_op (text "div")
1739 IntNegOp -> simp_op (text "neg")
1740 IntRemOp -> simp_op (text "rem")
1742 Addr2IntOp -> simp_op (text "conv.i4") -- Addresses are very dodgy for ILX. They are used for both C-strings and
1743 Int2AddrOp -> simp_op (text "conv.i") -- the FFI. This needs more work.
1744 ISllOp -> simp_op (text "shl")
1745 ISraOp -> simp_op (text "shr")
1746 ISrlOp -> simp_op (text "shr.un")
1747 IntAddCOp -> simp_op (text "call" <+> ilxSuppMeth (ilxUnboxedPairRep repInt repInt) "IntAddCOp" [] [repInt, repInt])
1748 IntSubCOp -> simp_op (text "call" <+> ilxSuppMeth (ilxUnboxedPairRep repInt repInt) "IntSubCOp" [] [repInt, repInt])
1749 IntMulCOp -> simp_op (text "call" <+> ilxSuppMeth (ilxUnboxedPairRep repInt repInt) "IntMulCOp" [] [repInt, repInt])
1750 IntGcdOp -> simp_op (text "call" <+> ilxSuppMeth repInt "IntMulCOp" [] [repInt, repInt])
1753 -- Word#-related ops:
1754 AndOp -> simp_op (text "and")
1755 OrOp -> simp_op (text "or")
1756 NotOp -> simp_op (text "not")
1757 XorOp -> simp_op (text "xor")
1758 SllOp -> simp_op (text "shl")
1759 SrlOp -> simp_op (text "shr")
1760 Word2IntOp -> simp_op (text "conv.i4")
1761 Int2WordOp -> simp_op (text "conv.u4")
1763 -- Float#-related ops:
1764 FloatAddOp -> simp_op (text "add")
1765 FloatSubOp -> simp_op (text "sub")
1766 FloatMulOp -> simp_op (text "mul")
1767 FloatDivOp -> simp_op (text "div")
1768 FloatNegOp -> simp_op (text "neg")
1769 Float2IntOp -> simp_op (text "conv.i4")
1770 Int2FloatOp -> simp_op (text "conv.r4")
1772 DoubleAddOp -> simp_op (text "add")
1773 DoubleSubOp -> simp_op (text "sub")
1774 DoubleMulOp -> simp_op (text "mul")
1775 DoubleDivOp -> simp_op (text "div")
1776 DoubleNegOp -> simp_op (text "neg")
1777 Double2IntOp -> simp_op (text "conv.i4")
1778 Int2DoubleOp -> simp_op (text "conv.r4")
1779 Double2FloatOp -> simp_op (text "conv.r4")
1780 Float2DoubleOp -> simp_op (text "conv.r8")
1781 DoubleDecodeOp -> simp_op (text "call" <+> ilxSuppMeth (ilxUnboxedTripleRep repInt repInt repByteArray) "decodeDouble" [] [text "float64"])
1782 FloatDecodeOp -> simp_op (text "call" <+> ilxSuppMeth (ilxUnboxedTripleRep repInt repInt repByteArray) "decodeFloat" [] [text "float32"])
1784 FloatExpOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Exp(float64) conv.r4")
1785 FloatLogOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Log(float64) conv.r4")
1786 FloatSqrtOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Sqrt(float64) conv.r4")
1787 FloatSinOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Sin(float64) conv.r4")
1788 FloatCosOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Cos(float64) conv.r4")
1789 FloatTanOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Tan(float64) conv.r4")
1790 FloatAsinOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Asin(float64) conv.r4")
1791 FloatAcosOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Acos(float64) conv.r4")
1792 FloatAtanOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Atan(float64) conv.r4")
1793 FloatSinhOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Sinh(float64) conv.r4")
1794 FloatCoshOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Cosh(float64) conv.r4")
1795 FloatTanhOp -> simp_op (text "conv.r8 call float64 [mscorlib]System.Math::Tanh(float64) conv.r4")
1796 FloatPowerOp -> simp_op (text "call float64 [mscorlib]System.Math::Pow(float64, float64) conv.r4") -- ** op, make use of implicit cast to r8...
1798 DoubleExpOp -> simp_op (text "call float64 [mscorlib]System.Math::Exp(float64)")
1799 DoubleLogOp -> simp_op (text "call float64 [mscorlib]System.Math::Log(float64)")
1800 DoubleSqrtOp -> simp_op (text "call float64 [mscorlib]System.Math::Sqrt(float64)")
1802 DoubleSinOp -> simp_op (text "call float64 [mscorlib]System.Math::Sin(float64)")
1803 DoubleCosOp -> simp_op (text "call float64 [mscorlib]System.Math::Cos(float64)")
1804 DoubleTanOp -> simp_op (text "call float64 [mscorlib]System.Math::Tan(float64)")
1806 DoubleAsinOp -> simp_op (text "call float64 [mscorlib]System.Math::Asin(float64)")
1807 DoubleAcosOp -> simp_op (text "call float64 [mscorlib]System.Math::Acos(float64)")
1808 DoubleAtanOp -> simp_op (text "call float64 [mscorlib]System.Math::Atan(float64)")
1810 DoubleSinhOp -> simp_op (text "call float64 [mscorlib]System.Math::Sinh(float64)")
1811 DoubleCoshOp -> simp_op (text "call float64 [mscorlib]System.Math::Cosh(float64)")
1812 DoubleTanhOp -> simp_op (text "call float64 [mscorlib]System.Math::Tanh(float64)")
1814 DoublePowerOp -> simp_op (text "call float64 [mscorlib]System.Math::Pow(float64, float64)")
1816 -- Integer (and related...) ops: bail out to support routines
1817 -- IntegerNegOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerNegOp" [] [repInt, repByteArray])
1818 -- Addr2IntegerOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "Addr2IntegerOp" [] [repAddr])
1819 IntegerAddOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerAddOp" [] [repInt, repByteArray, repInt, repByteArray])
1820 IntegerSubOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerSubOp" [] [repInt, repByteArray, repInt, repByteArray])
1821 IntegerMulOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerMulOp" [] [repInt, repByteArray, repInt, repByteArray])
1822 IntegerGcdOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerGcdOp" [] [repInt, repByteArray, repInt, repByteArray])
1823 IntegerQuotRemOp -> simp_op (text "call" <+> ilxSuppMeth repIntegerPair "IntegerQuotRemOp" [] [repInt, repByteArray, repInt, repByteArray])
1824 IntegerDivModOp -> simp_op (text "call" <+> ilxSuppMeth repIntegerPair "IntegerDivModOp" [] [repInt, repByteArray, repInt, repByteArray])
1825 IntegerIntGcdOp -> simp_op (text "call" <+> ilxSuppMeth repInt "IntegerIntGcdOp" [] [repInt, repByteArray, repInt])
1826 IntegerDivExactOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerDivExactOp" [] [repInt, repByteArray, repInt, repByteArray])
1827 IntegerQuotOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerQuotOp" [] [repInt, repByteArray, repInt, repByteArray])
1828 IntegerRemOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "IntegerRemOp" [] [repInt, repByteArray, repInt, repByteArray])
1829 IntegerCmpOp -> simp_op (text "call" <+> ilxSuppMeth repInt "IntegerCmpOp" [] [repInt, repByteArray, repInt, repByteArray])
1830 IntegerCmpIntOp -> simp_op (text "call" <+> ilxSuppMeth repInt "IntegerCmpIntOp" [] [repInt, repByteArray, repInt])
1831 Integer2IntOp -> simp_op (text "call" <+> ilxSuppMeth repInt "Integer2IntOp" [] [repInt, repByteArray])
1832 Integer2WordOp -> simp_op (text "call" <+> ilxSuppMeth repWord "Integer2WordOp" [] [repInt, repByteArray])
1833 Int2IntegerOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "Int2IntegerOp" [] [repInt])
1834 Word2IntegerOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "Word2IntegerOp" [] [repWord])
1835 IntegerToInt64Op -> simp_op (text "call" <+> ilxSuppMeth repAddr "IntegerToInt64Op" [] [repInt,repByteArray])
1836 Int64ToIntegerOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "Int64ToIntegerOp" [] [repInt64])
1837 IntegerToWord64Op -> simp_op (text "call" <+> ilxSuppMeth repWord64 "IntegerToWord64Op" [] [repInt,repByteArray])
1838 Word64ToIntegerOp -> simp_op (text "call" <+> ilxSuppMeth repInteger "Word64ToIntegerOp" [] [repWord64])
1840 IndexOffForeignObjOp_Char -> simp_op (text "add ldind.u1")
1841 IndexOffForeignObjOp_Int -> simp_op (text "ldc.i4 4 mul add ldind.i4")
1842 IndexOffForeignObjOp_Word -> simp_op (text "ldc.i4 4 mul add ldind.u4")
1843 IndexOffForeignObjOp_Addr -> warn_op "IndexOffForeignObjOp Addr: assuing 32 bit architecture" (simp_op (text "ldc.i4 4 mul add ldind.i "))
1844 IndexOffForeignObjOp_Float -> simp_op (text "ldc.i4 4 mul add ldind.r4")
1845 IndexOffForeignObjOp_Double -> simp_op (text "ldc.i4 8 mul add ldind.r8")
1846 IndexOffForeignObjOp_Int64 -> simp_op (text "ldc.i4 8 mul add ldind.i8")
1847 IndexOffForeignObjOp_Word64 -> simp_op (text "ldc.i4 8 mul add ldind.u8")
1849 IndexOffAddrOp_Char -> simp_op (text "add ldind.u1")
1850 IndexOffAddrOp_Int -> simp_op (text "ldc.i4 4 mul add ldind.i4")
1851 IndexOffAddrOp_Word -> simp_op (text "ldc.i4 4 mul add ldind.u4")
1852 IndexOffAddrOp_Addr -> warn_op "IndexOffAddrOp Addr: assuing 32 bit architecture" (simp_op (text "ldc.i4 4 mul add ldind.i"))
1853 IndexOffAddrOp_Float -> simp_op (text "ldc.i4 4 mul add ldind.r4")
1854 IndexOffAddrOp_Double -> simp_op (text "ldc.i4 8 mul add ldind.r8")
1855 IndexOffAddrOp_Int64 -> simp_op (text "ldc.i4 8 mul add ldind.i8")
1856 IndexOffAddrOp_Word64 -> simp_op (text "ldc.i4 8 mul add ldind.u8")
1859 WriteOffAddrOp_Char -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "add" <+> v <+> text "stind.u1")
1860 WriteOffAddrOp_Int -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 4 mul add" <+> v <+> text "stind.i4")
1861 WriteOffAddrOp_Word -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 4 mul add" <+> v <+> text "stind.u4")
1862 WriteOffAddrOp_Addr -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 4 mul add" <+> v <+> text "stind.i")
1863 WriteOffAddrOp_Float -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 4 mul add" <+> v <+> text "stind.r4")
1864 WriteOffAddrOp_Double -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 8 mul add" <+> v <+> text "stind.r8")
1865 WriteOffAddrOp_Int64 -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 8 mul add" <+> v <+> text "stind.i8")
1866 WriteOffAddrOp_Word64 -> ty1_arg4_op (\sty addr n v s -> addr <+> n <+> text "ldc.i4 8 mul add" <+> v <+> text "stind.u8")
1867 {- Addr# -> Int# -> Char# -> State# s -> State# s -}
1869 ReadOffAddrOp_Char -> simp_op (text "add ldind.u1")
1870 ReadOffAddrOp_Int -> simp_op (text "ldc.i4 4 mul add ldind.i4")
1871 ReadOffAddrOp_Word -> simp_op (text "ldc.i4 4 mul add ldind.u4")
1872 ReadOffAddrOp_Addr -> simp_op (text "ldc.i4 4 mul add ldind.i")
1873 ReadOffAddrOp_Float -> simp_op (text "ldc.i4 4 mul add ldind.r4")
1874 ReadOffAddrOp_Double -> simp_op (text "ldc.i4 8 mul add ldind.r8")
1875 ReadOffAddrOp_Int64 -> simp_op (text "ldc.i4 8 mul add ldind.i8")
1876 ReadOffAddrOp_Word64 -> simp_op (text "ldc.i4 8 mul add ldind.u8")
1877 {- Addr# -> Int# -> Char# -> State# s -> State# s -}
1879 IndexByteArrayOp_Char -> simp_op (text "ldelem.u1")
1880 IndexByteArrayOp_Int -> simp_op (text "ldelem.i4")
1881 IndexByteArrayOp_Word -> simp_op (text "ldelem.u4")
1882 IndexByteArrayOp_Addr -> simp_op (text "ldelem.u")
1883 IndexByteArrayOp_Float -> simp_op (text "ldelem.r4")
1884 IndexByteArrayOp_Double -> simp_op (text "ldelem.r8")
1885 IndexByteArrayOp_StablePtr -> simp_op (text "ldelem.i4")
1886 IndexByteArrayOp_Int64 -> simp_op (text "ldelem.i8")
1887 IndexByteArrayOp_Word64 -> simp_op (text "ldelem.u8")
1889 {- ByteArr# -> Int# -> Char# -}
1891 WriteByteArrayOp_Char -> simp_op (text "stelem.u1")
1892 WriteByteArrayOp_Int -> simp_op (text "stelem.i4")
1893 WriteByteArrayOp_Word -> simp_op (text "stelem.u4")
1894 WriteByteArrayOp_Addr -> simp_op (text "stelem.u")
1895 WriteByteArrayOp_Float -> simp_op (text "stelem.r4")
1896 WriteByteArrayOp_Double -> simp_op (text "stelem.r8")
1897 WriteByteArrayOp_StablePtr -> simp_op (text "stelem.i4")
1898 WriteByteArrayOp_Int64 -> simp_op (text "stelem.i8")
1899 WriteByteArrayOp_Word64 -> simp_op (text "stelem.u8")
1901 {- MutByteArr# s -> Int# -> Char# -> State# s -> State# s -}
1903 {- should be monadic??? -}
1904 ReadByteArrayOp_Char -> simp_op (text "ldelem.u1")
1905 ReadByteArrayOp_Int -> simp_op (text "ldelem.i4")
1906 ReadByteArrayOp_Word -> simp_op (text "ldelem.u4")
1907 ReadByteArrayOp_Addr -> simp_op (text "ldelem.u")
1908 ReadByteArrayOp_Float -> simp_op (text "ldelem.r4")
1909 ReadByteArrayOp_Double -> simp_op (text "ldelem.r8")
1910 ReadByteArrayOp_StablePtr -> simp_op (text "ldelem.i4")
1911 ReadByteArrayOp_Int64 -> simp_op (text "ldelem.i8")
1912 ReadByteArrayOp_Word64 -> simp_op (text "ldelem.u8")
1913 {- MutByteArr# s -> Int# -> State# s -> (# State# s, Char# #) -}
1915 {- should be monadic??? -}
1916 NewByteArrayOp_Char -> simp_op (text "newarr [mscorlib]System.Byte")
1917 -- NewByteArrayOp_Int -> simp_op (text "newarr [mscorlib]System.Int32")
1918 -- NewByteArrayOp_Word -> simp_op (text "newarr [mscorlib]System.UInt32")
1919 -- NewByteArrayOp_Addr -> simp_op (text "newarr [mscorlib]System.UInt64")
1920 -- NewByteArrayOp_Float -> simp_op (text "newarr [mscorlib]System.Single")
1921 -- NewByteArrayOp_Double -> simp_op (text "newarr [mscorlib]System.Double")
1922 -- NewByteArrayOp_StablePtr -> simp_op (text "newarr [mscorlib]System.UInt32")
1923 -- NewByteArrayOp_Int64 -> simp_op (text "newarr [mscorlib]System.Int64") TODO: there is no unique for this one -}
1924 -- NewByteArrayOp_Word64 -> simp_op (text "newarr [mscorlib]System.UInt64") -}
1925 {- Int# -> State# s -> (# State# s, MutByteArr# s #) -}
1927 UnsafeFreezeByteArrayOp -> ty1_op (\ty1 -> text "nop ")
1928 {- MutByteArr# s -> State# s -> (# State# s, ByteArr# #) -}
1929 SizeofByteArrayOp -> simp_op (text "ldlen")
1930 {- ByteArr# -> Int# -}
1932 SameMutableByteArrayOp -> ty1_op (\ty1 -> text "ceq " <+> ilxMkBool)
1933 {- MutByteArr# s -> MutByteArr# s -> Bool -}
1934 SizeofMutableByteArrayOp -> ty1_op (\ty1 -> text "ldlen")
1935 {- MutByteArr# s -> Int# -}
1937 SameMutVarOp -> ty2_op (\ty1 ty2 -> text "ceq " <+> ilxMkBool)
1938 {- MutVar# s a -> MutVar# s a -> Bool -}
1939 NewMutVarOp -> ty2_op (\ty1 ty2 -> text "newobj void" <+> repMutVar ty1 ty2 <+> text "::.ctor(!0)")
1940 {- a -> State# s -> (# State# s, MutVar# s a #) -}
1941 ReadMutVarOp -> ty2_op (\ty1 ty2 -> text "ldfld !0" <+> repMutVar ty1 ty2 <+> text "::contents")
1942 {- MutVar# s a -> State# s -> (# State# s, a #) -}
1943 WriteMutVarOp -> ty2_op (\ty1 ty2 -> text "stfld !0" <+> repMutVar ty1 ty2 <+> text "::contents")
1944 {- MutVar# s a -> a -> State# s -> State# s -}
1946 NewArrayOp -> ty2_op (\ty1 ty2 -> text "call !!0[] " <+> ilxSupportClass <+> text "::newArray<" <> ty1 <> text ">(" <> repInt <> text ", !!0)")
1947 {- Int# -> a -> State# s -> (# State# s, MutArr# s a #) -}
1948 IndexArrayOp -> ty1_op (\ty1 -> text "ldelem.ref")
1949 {- Array# a -> Int# -> (# a #) -}
1950 WriteArrayOp -> ty2_op (\ty1 ty2 -> text "stelem.ref")
1951 {- MutArr# s a -> Int# -> a -> State# s -> State# s -}
1952 ReadArrayOp -> ty2_op (\ty1 ty2 -> text "ldelem.ref")
1953 {- MutArr# s a -> Int# -> State# s -> (# State# s, a #) -}
1954 UnsafeFreezeArrayOp -> ty2_op (\ty1 ty2 -> text "nop")
1955 {- MutArr# s a -> State# s -> (# State# s, Array# a #) -}
1956 UnsafeThawArrayOp -> ty2_op (\ty1 ty2 -> text "nop")
1957 {- Array# a -> State# s -> (# State# s, MutArr# s a #) -}
1959 SameMutableArrayOp -> ty2_op (\ty1 ty2 -> text "ceq " <+> ilxMkBool)
1960 {- MutArr# s a -> MutArr# s a -> Bool -}
1963 RaiseOp -> ty2_op (\ty1 ty2 -> text "throw")
1964 CatchOp -> ty2_op (\ty1 ty2 ->
1965 text "call" <+> ilxSuppMeth ilxMethA "catch" [ty1,ty2] [text "(func () --> !!0)", text "(func (!!1) --> (func () --> !!0))"])
1966 {- (State# RealWorld -> (# State# RealWorld, a #) )
1967 -> (b -> State# RealWorld -> (# State# RealWorld, a #) )
1969 -> (# State# RealWorld, a #)
1972 BlockAsyncExceptionsOp -> ty1_op (\ty1 ->
1973 text "call" <+> ilxSuppMeth ilxMethA "blockAsyncExceptions" [ty1] [text "(func () --> !!0)"])
1975 {- (State# RealWorld -> (# State# RealWorld, a #))
1976 -> (State# RealWorld -> (# State# RealWorld, a #))
1979 UnblockAsyncExceptionsOp -> ty1_op (\ty1 ->
1980 text "call" <+> ilxSuppMeth ilxMethA "unblockAsyncExceptions" [ty1] [text "(func () --> !!0)"])
1983 State# RealWorld -> (# State# RealWorld, a #))
1984 -> (State# RealWorld -> (# State# RealWorld, a #))
1987 NewMVarOp -> ty2_op (\sty ty ->
1988 text "newobj void " <+> repMVar ty <+> text "::.ctor()")
1989 {- State# s -> (# State# s, MVar# s a #) -}
1991 TakeMVarOp -> ty2_op (\sty ty ->
1992 text "call" <+> ilxSuppMeth ilxMethA "takeMVar" [ty] [repMVar ilxMethA])
1993 {- MVar# s a -> State# s -> (# State# s, a #) -}
1995 PutMVarOp -> ty2_op (\sty ty ->
1996 text "call" <+> ilxSuppMeth (text "void") "putMVar" [ty] [repMVar ilxMethA, ilxMethA])
1997 {- MVar# s a -> a -> State# s -> State# s -}
1999 SameMVarOp -> ty2_op (\sty ty -> text "ceq " <+> ilxMkBool)
2000 {- MVar# s a -> MVar# s a -> Bool -}
2002 -- TakeMaybeMVarOp -> ty2_op (\sty ty ->
2003 -- text "call" <+> ilxSuppMeth (ilxUnboxedPairRep repInt ilxMethA) "tryTakeMVar" [ty] [repMVar ilxMethA])
2004 -- {- MVar# s a -> State# s -> (# State# s, Int#, a #) -}
2006 IsEmptyMVarOp -> ty2_op (\sty ty ->
2007 text "call" <+> ilxSuppMeth repInt "isEmptyMVar" [ty] [repMVar ilxMethA])
2008 {- MVar# s a -> State# s -> (# State# s, Int# #) -}
2010 DataToTagOp -> ty1_op (\ty1 ->
2011 text "call" <+> ilxSuppMeth repInt "dataToTag" [ty1] [ilxMethA])
2014 TagToEnumOp -> ty1_op (\ty1 ->
2015 text "call" <+> ilxSuppMeth ilxMethA "tagToEnum" [ty1] [repInt])
2018 MakeStablePtrOp -> ty1_op (\ty1 -> text "newobj void class " <+> prelGHCReference <+> text "PrelGHC_StablePtrzh<" <> ty1 <> text ">::.ctor(!0)")
2019 {- a -> State# RealWorld -> (# State# RealWorld, StablePtr# a #) -}
2021 DeRefStablePtrOp -> ty1_op (\ty1 -> text "ldfld !0 class " <+> prelGHCReference <+> text "PrelGHC_StablePtrzh<" <> ty1 <> text ">::contents")
2022 {- StablePtr# a -> State# RealWorld -> (# State# RealWorld, a #) -}
2024 EqStablePtrOp -> ty1_op (\ty1 -> text "ceq " <+> ilxMkBool)
2025 {- StablePtr# a -> StablePtr# a -> Int# -}
2027 MkWeakOp -> ty3_op (\ty1 ty2 ty3 -> text "call" <+> ilxMethodRef (repWeak (text "!!1")) (text "class " <+> prelGHCReference <+> text "PrelGHC_Weakzh") "bake" [ty1,ty2,ty3] [text "!!0", text "!!1", text "!!2"])
2028 {- o -> b -> c -> State# RealWorld -> (# State# RealWorld, Weak# b #) -}
2030 DeRefWeakOp -> ty1_op (\ty1 -> text "call" <+> ilxMethodRef (ilxUnboxedPairRep repInt (text "!0")) (repWeak ty1) "deref" [] [])
2031 FinalizeWeakOp -> ty1_op (\ty1 -> text "call" <+> ilxMethodRef (ilxUnboxedPairRep repInt (text "(func () --> class '()')")) (repWeak ty1) "finalizer" [] [])
2032 {- Weak# a -> State# RealWorld -> (# State# RealWorld, Int#,
2033 State# RealWorld -> (# State# RealWorld, Unit #)) #) -}
2035 MkForeignObjOp -> simp_op (text "nop /* newobj void class " <+> prelGHCReference <+> text "PrelGHC_ForeignObjzh::.ctor(void *) */")
2036 WriteForeignObjOp -> simp_op (text "pop /* stfld void * class " <+> prelGHCReference <+> text "PrelGHC_ForeignObjzh::contents */ ")
2037 -- (ForeignObjToAddrOp -> simp_op (text "ldfld void * class " <+> prelGHCReference <+> text "PrelGHC_ForeignObjzh::contents"))
2038 YieldOp -> simp_op (text "call class [mscorlib]System.Threading.Thread class [mscorlib]System.Threading.Thread::get_CurrentThread()
2039 call void class [mscorlib]System.Threading.Thread::Suspend()")
2040 MyThreadIdOp -> simp_op (text "call default class [mscorlib]System.Threading.Thread class [mscorlib]System.Threading.Thread::get_CurrentThread() ")
2041 KillThreadOp -> simp_op (text "call instance void class [mscorlib]System.Threading.Thread::Abort(class [mscorlib]System.Object) ")
2042 {- ThreadId# -> a -> State# RealWorld -> State# RealWorld -}
2044 ForkOp -> ty1_op (\ty -> text "call default class [mscorlib]System.Threading.Thread " <+> ilxSupportClass <+> text "::fork<" <> ty <> text ">(thunk<!0>)")
2046 ParOp -> warn_op "ParOp" (simp_op (text "/* ParOp skipped... */ pop ldc.i4 0"))
2048 DelayOp -> simp_op (text "call void class [mscorlib]System.Threading.Thread::Sleep(int32) ")
2049 {- Int# -> State# s -> State# s -}
2051 WaitReadOp -> warn_op "WaitReadOp" (simp_op (text "/* WaitReadOp skipped... */ pop"))
2052 WaitWriteOp -> warn_op "WaitWriteOp" (simp_op (text " /* WaitWriteOp skipped... */ pop"))
2055 other -> \env args -> ilxComment (simp_op (text "Unknown primop!:" <+> pprId op) env args)
2059 ty1_op op env ((StgTypeArg ty1):rest) =
2060 vcat (ilxMapPlaceArgs 1 pushArg env rest) $$ op (pprIlxTypeR env (deepIlxRepType ty1))
2061 --ty1_after1_op op env (h:(StgTypeArg ty1):rest) =
2062 -- vcat (ilxMapPlaceArgs 0 pushArg env [h]) $$ vcat (ilxMapPlaceArgs 2 pushArg env rest) $$ op (pprIlxTypeR env (deepIlxRepType ty1))
2063 ty2_op op env ((StgTypeArg ty1):(StgTypeArg ty2):rest) =
2064 vcat (ilxMapPlaceArgs 2 pushArg env rest) $$ op (pprIlxTypeR env (deepIlxRepType ty1)) (pprIlxTypeR env (deepIlxRepType ty2))
2066 ty3_op op env ((StgTypeArg ty1):(StgTypeArg ty2):(StgTypeArg ty3):rest) =
2067 vcat (ilxMapPlaceArgs 2 pushArg env rest) $$
2068 op (pprIlxTypeR env (deepIlxRepType ty1))
2069 (pprIlxTypeR env (deepIlxRepType ty2))
2070 (pprIlxTypeR env (deepIlxRepType ty3))
2072 ty1_arg4_op op env [(StgTypeArg ty1), a1, a2, a3, a4] =
2073 op (pprIlxTypeR env (deepIlxRepType ty1))
2074 (hd2 (ilxMapPlaceArgs 1 pushArg env [a1]) )
2075 (hd2 (ilxMapPlaceArgs 2 pushArg env [a2]) )
2076 (hd2 (ilxMapPlaceArgs 3 pushArg env [a3]) )
2077 (hd2 (ilxMapPlaceArgs 4 pushArg env [a4]) )
2082 simp_op op env args = vcat (ilxMapPlaceArgs 0 pushArg env args) $$ op
2083 warn_op warning f args = trace ("WARNING! IlxGen cannot translate primop " ++ warning) (f args)