{-| Copyright : (C) 2013-2016, University of Twente, 2016-2017, Myrtle Software Ltd, 2017 , Google Inc. 2021-2023, QBayLogic B.V. License : BSD2 (see the file LICENSE) Maintainer : QBayLogic B.V. -} {-# LANGUAGE CPP #-} {-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE LambdaCase #-} {-# LANGUAGE NamedFieldPuns #-} {-# LANGUAGE QuasiQuotes #-} {-# LANGUAGE RecordWildCards #-} {-# LANGUAGE TemplateHaskell #-} module Clash.GHC.LoadModules ( loadModules , ghcLibDir , setWantedLanguageExtensions ) where #ifndef USE_GHC_PATHS #ifndef TOOL_VERSION_ghc #error TOOL_VERSION_ghc undefined #endif #endif -- External Modules import Clash.Annotations.Primitive (HDL, PrimitiveGuard(..)) import Clash.Annotations.TopEntity (TopEntity (..)) import Clash.Primitives.Types (UnresolvedPrimitive) import Clash.Util (ClashException(..), pkgIdFromTypeable) import qualified Clash.Util.Interpolate as I import Control.Arrow (first) import Control.Exception (SomeException, throw) import Control.Monad (forM, join, when) import Data.List.Extra (nubSort) import Control.Exception (throwIO) import Control.Monad (foldM) #if MIN_VERSION_ghc(9,0,0) import Control.Monad.Catch as MC (try) #endif import Control.Monad.IO.Class (liftIO) import Data.Char (isDigit) import Data.Generics.Uniplate.DataOnly (transform) import Data.Data (Data) import Data.Functor ((<&>)) import Data.Foldable (toList) import Data.HashMap.Strict (HashMap) import qualified Data.HashMap.Strict as HashMap import Data.Typeable (Typeable) import Data.List (foldl', nub, find) import qualified Data.Map as Map import Data.Maybe (catMaybes, fromMaybe, listToMaybe, mapMaybe) import qualified Data.Text as Text import qualified Data.Text.Encoding as Text import qualified Data.Time.Clock as Clock import qualified Data.Set as Set import qualified Data.Sequence as Seq import Debug.Trace import Language.Haskell.TH.Syntax (lift) import GHC.Natural (naturalFromInteger) import GHC.Stack (HasCallStack) #if MIN_VERSION_ghc(9,4,0) import System.FilePath.Posix (dropExtension, takeDirectory) #endif import Text.Read (readMaybe) #ifdef USE_GHC_PATHS import GHC.Paths (libdir) #else import System.Exit (ExitCode (..)) import System.IO (hGetLine) import System.IO.Error (tryIOError) import System.Process (runInteractiveCommand, waitForProcess) #endif -- GHC API #if MIN_VERSION_ghc(9,0,0) #if MIN_VERSION_ghc(9,4,0) import GHC.Driver.Phases (StopPhase(NoStop)) import GHC.Driver.Pipeline (mkPipeEnv, runPipeline, hscBackendPipeline) #if MIN_VERSION_ghc(9,6,0) import GHC.SysTools.Cpp (offsetIncludePaths) import GHC.Unit.Home.ModInfo (homeMod_bytecode) #else import GHC.Driver.Pipeline.Execute (offsetIncludePaths) import GHC.Driver.Pipeline.Monad (PipelineOutput(NoOutputFile, Persistent)) #endif import GHC.Driver.Pipeline.Monad ( MonadUse(use) ) import GHC.Driver.Pipeline.Phases (TPhase(T_HscPostTc)) import GHC.Data.Bool (OverridingBool) import GHC.Driver.Config.Tidy (initTidyOpts) import GHC.Driver.Errors.Types (GhcMessage(GhcTcRnMessage)) import GHC.Driver.Monad (modifySession) import GHC.Unit.Env (addHomeModInfoToHug) import GHC.Unit.Home.ModInfo (HomeModInfo(HomeModInfo)) import GHC.Unit.Module.ModSummary (findTarget) #else import GHC.Utils.Misc (OverridingBool) #endif #if MIN_VERSION_ghc(9,2,0) import qualified GHC.Driver.Env as HscTypes import qualified GHC.Unit.Module.ModGuts as HscTypes import qualified GHC.Types.SourceError as HscTypes import qualified GHC.Unit.Module.Deps as HscTypes import qualified GHC.Driver.Backend as Backend import qualified GHC.Unit.Module.Graph as Graph import qualified GHC.Platform.Ways as Ways #if !MIN_VERSION_ghc(9,4,0) import qualified GHC.Types.Error as Error #endif #else import qualified GHC.Driver.Types as HscTypes import qualified GHC.Driver.Ways as Ways #endif import qualified GHC.Types.Annotations as Annotations import qualified GHC.Core.FVs as CoreFVs import qualified GHC.Core as CoreSyn import qualified GHC.Core.DataCon as DataCon import qualified GHC.Data.Graph.Directed as Digraph import qualified GHC.Runtime.Loader as DynamicLoading import GHC.Driver.Session (GeneralFlag (..)) import qualified GHC.Driver.Session as DynFlags import qualified GHC.Data.FastString as FastString import qualified GHC import qualified GHC.Driver.Main as HscMain import qualified GHC.Utils.Monad as MonadUtils import qualified GHC.Utils.Panic as Panic import qualified GHC.Serialized as Serialized (deserializeWithData) import qualified GHC.Unit.Types as UnitTypes (unitIdString) import qualified GHC.Tc.Utils.Monad as TcRnMonad import qualified GHC.Tc.Types as TcRnTypes import qualified GHC.Iface.Tidy as TidyPgm import qualified GHC.Core.TyCon as TyCon import qualified GHC.Core.Type as Type import qualified GHC.Types.Unique as Unique import qualified GHC.Tc.Instance.Family as FamInst import qualified GHC.Core.FamInstEnv as FamInstEnv import qualified GHC.LanguageExtensions as LangExt import qualified GHC.Types.Name as Name import qualified GHC.Types.Name.Occurrence as OccName import GHC.Utils.Outputable (ppr) import qualified GHC.Utils.Outputable as Outputable import qualified GHC.Types.Unique.Set as UniqSet import qualified GHC.Types.Var as Var import qualified GHC.Unit.Module.Env as ModuleEnv import qualified GHC.Types.Name.Env as NameEnv #else import qualified Annotations import qualified CoreFVs import qualified CoreSyn import qualified DataCon import qualified Digraph import qualified DynamicLoading import DynFlags (GeneralFlag (..)) import qualified DynFlags import qualified Exception import qualified FastString import qualified GHC import qualified HscMain import qualified HscTypes import qualified MonadUtils import qualified Panic import qualified GhcPlugins (deserializeWithData, installedUnitIdString) import qualified TcRnMonad import qualified TcRnTypes import qualified TidyPgm import qualified TyCon import qualified Type import qualified Unique import qualified UniqFM import qualified FamInst import qualified FamInstEnv import qualified GHC.LanguageExtensions as LangExt import qualified Name import qualified OccName import Outputable (ppr) import qualified Outputable import qualified UniqSet import Util (OverridingBool) import qualified Var #endif -- Internal Modules import Clash.GHC.GHC2Core (modNameM, qualifiedNameString') import Clash.GHC.LoadInterfaceFiles (loadExternalExprs, getUnresolvedPrimitives, loadExternalBinders, LoadedBinders(..)) import Clash.GHCi.Common (checkMonoLocalBindsMod) import Clash.Util (curLoc, noSrcSpan, reportTimeDiff ,wantedLanguageExtensions, unwantedLanguageExtensions) import Clash.Annotations.BitRepresentation.Internal (DataRepr', dataReprAnnToDataRepr') import Clash.Signal.Internal ghcLibDir :: IO FilePath #ifdef USE_GHC_PATHS ghcLibDir = return libdir #else ghcLibDir = do (libDirM,exitCode) <- getProcessOutput $ "ghc-" ++ TOOL_VERSION_ghc ++ " --print-libdir" case exitCode of ExitSuccess -> case libDirM of Just libDir -> return libDir Nothing -> Panic.pgmError noGHC ExitFailure i -> case i of 127 -> Panic.pgmError noGHC i' -> Panic.pgmError $ "Calling GHC failed with error code: " ++ show i' where noGHC = "Clash needs the GHC compiler it was built with, ghc-" ++ TOOL_VERSION_ghc ++ ", but it was not found. Make sure its location is in your PATH variable." getProcessOutput :: String -> IO (Maybe String, ExitCode) getProcessOutput command = -- Create the process do (_, pOut, _, handle) <- runInteractiveCommand command -- Wait for the process to finish and store its exit code exitCode <- waitForProcess handle -- Get the standard output. output <- either (const Nothing) Just <$> tryIOError (hGetLine pOut) -- return both the output and the exit code. return (output, exitCode) #endif -- | Search databases for given module loadExternalModule :: (HasCallStack, GHC.GhcMonad m) => HDL -> String -- ^ Module name. Can either be a filepath pointing to a .hs file, or a -- qualified module name (example: "Data.List"). -> m (Either SomeException ( [CoreSyn.CoreBndr] -- Root binders , FamInstEnv.FamInstEnv -- Local type family instances , GHC.ModuleName -- Module name , LoadedBinders , [CoreSyn.CoreBind] -- All bindings ) ) #if MIN_VERSION_ghc(9,0,0) loadExternalModule hdl modName0 = MC.try $ do #else loadExternalModule hdl modName0 = Exception.gtry $ do #endif let modName1 = GHC.mkModuleName modName0 foundMod <- GHC.findModule modName1 Nothing let errMsg = "Internal error: found module, but could not load it" modInfo <- fromMaybe (error errMsg) <$> (GHC.getModuleInfo foundMod) tyThings <- catMaybes <$> mapM GHC.lookupGlobalName (GHC.modInfoExports modInfo) let rootIds = [id_ | GHC.AnId id_ <- tyThings] loaded <- loadExternalBinders hdl rootIds let allBinders = makeRecursiveGroups (Map.assocs (lbBinders loaded)) return (rootIds, FamInstEnv.emptyFamInstEnv, modName1, loaded, allBinders) setupGhc :: GHC.GhcMonad m => OverridingBool -> Maybe GHC.DynFlags -> [FilePath] -> m () setupGhc useColor dflagsM idirs = do dflags <- case dflagsM of Just df -> return df Nothing -> do -- Make sure we read the .ghc environment files df <- do df <- GHC.getSessionDynFlags #if MIN_VERSION_ghc(9,0,0) #if MIN_VERSION_ghc(9,2,0) logger <- GHC.getLogger df1 <- liftIO (GHC.interpretPackageEnv logger df) #else df1 <- liftIO (GHC.interpretPackageEnv df) #endif _ <- GHC.setSessionDynFlags df1 #else _ <- GHC.setSessionDynFlags df {DynFlags.pkgDatabase = Nothing} #endif GHC.getSessionDynFlags let df1 = setWantedLanguageExtensions df ghcTyLitNormPlugin = GHC.mkModuleName "GHC.TypeLits.Normalise" ghcTyLitExtrPlugin = GHC.mkModuleName "GHC.TypeLits.Extra.Solver" ghcTyLitKNPlugin = GHC.mkModuleName "GHC.TypeLits.KnownNat.Solver" dfPlug = df1 { DynFlags.pluginModNames = nub $ ghcTyLitNormPlugin : ghcTyLitExtrPlugin : ghcTyLitKNPlugin : DynFlags.pluginModNames df1 , DynFlags.useColor = useColor , DynFlags.importPaths = idirs } return dfPlug let dflags1 = dflags { DynFlags.ghcMode = GHC.CompManager , DynFlags.ghcLink = GHC.LinkInMemory #if !MIN_VERSION_ghc(9,4,0) , DynFlags.optLevel = 2 #endif #if MIN_VERSION_ghc(9,2,0) , DynFlags.backend = if Ways.hostIsProfiled #if MIN_VERSION_ghc(9,6,0) then Backend.noBackend #else then Backend.NoBackend #endif else Backend.platformDefaultBackend (DynFlags.targetPlatform dflags) #else , DynFlags.hscTarget #if MIN_VERSION_ghc(9,0,0) = if Ways.hostIsProfiled #else = if DynFlags.rtsIsProfiled #endif then DynFlags.HscNothing else DynFlags.defaultObjectTarget $ #if !MIN_VERSION_ghc(8,10,0) DynFlags.targetPlatform #endif dflags #endif , DynFlags.reductionDepth = 1000 } let dflags2 = unwantedOptimizationFlags dflags1 ghcDynamic = case lookup "GHC Dynamic" (DynFlags.compilerInfo dflags) of Just "YES" -> True _ -> False dflags3 = if ghcDynamic then DynFlags.gopt_set dflags2 DynFlags.Opt_BuildDynamicToo else dflags2 when (DynFlags.gopt DynFlags.Opt_WorkerWrapper dflags3) $ trace (unlines ["WARNING:" ,"`-fworker-wrapper` option is globally enabled, this can result in incorrect code." ,"Are you compiling with `-O` or `-O2`? Consider adding `-fno-worker-wrapper`." ,"`-fworker-wrapper` can be use in a diligent manner on a file-by-file basis" ,"by using a `{-# OPTIONS_GHC -fworker-wrapper` #-} pragma." ]) (return ()) #if MIN_VERSION_ghc(9,2,0) _ <- GHC.setSessionDynFlags dflags3 hscenv <- GHC.getSession hscenv1 <- MonadUtils.liftIO (DynamicLoading.initializePlugins hscenv) GHC.setSession hscenv1 #elif MIN_VERSION_ghc(9,0,0) _ <- GHC.setSessionDynFlags dflags3 hscenv <- GHC.getSession dflags4 <- MonadUtils.liftIO (DynamicLoading.initializePlugins hscenv dflags3) _ <- GHC.setSessionDynFlags dflags4 #else hscenv <- GHC.getSession dflags4 <- MonadUtils.liftIO (DynamicLoading.initializePlugins hscenv dflags3) _ <- GHC.setSessionDynFlags dflags4 #endif return () -- | Load a module from a Haskell file. Function does NOT look in currently -- loaded modules. loadLocalModule :: GHC.GhcMonad m => HDL -> String -- ^ Module name. Can either be a filepath pointing to a .hs file, or a -- qualified module name (example: "Data.List"). -> m ( [CoreSyn.CoreBndr] -- Root binders , FamInstEnv.FamInstEnv -- Local type family instances , GHC.ModuleName -- Module name , LoadedBinders , [CoreSyn.CoreBind] -- All bindings ) loadLocalModule hdl modName = do #if MIN_VERSION_ghc(9,4,0) target <- GHC.guessTarget modName Nothing Nothing #else target <- GHC.guessTarget modName Nothing #endif GHC.setTargets [target] modGraph <- GHC.depanal [] False let modGraph' = GHC.mapMG disableOptimizationsFlags modGraph -- 'topSortModuleGraph' ensures that modGraph2, and hence tidiedMods -- are in topological order, i.e. the root module is last. modGraph2 = Digraph.flattenSCCs $ #if MIN_VERSION_ghc(9,2,0) -- TODO: this might break backpack Graph.filterToposortToModules $ #endif GHC.topSortModuleGraph True modGraph' Nothing liftIO $ mapM_ checkMonoLocalBindsMod modGraph2 tidiedMods <- forM modGraph2 $ \m -> do oldDFlags <- GHC.getSessionDynFlags pMod <- parseModule m _ <- GHC.setSessionDynFlags (GHC.ms_hspp_opts (GHC.pm_mod_summary pMod)) tcMod <- GHC.typecheckModule (removeStrictnessAnnotations pMod) -- The purpose of the home package table (HPT) is to track -- the already compiled modules, so subsequent modules can -- rely/use those compilation results -- -- We need to update the home package table (HPT) ourselves -- as we can no longer depend on 'GHC.load' to create a -- proper HPT. -- -- The reason we have to cannot rely on 'GHC.load' is that -- it runs the rename/type-checker, which we also run in -- the code above. This would mean that the renamer/type-checker -- is run twice, which in turn means that template haskell -- splices are run twice. -- -- Given that TH splices can do non-trivial computation and I/O, -- running TH twice must be avoid. #if MIN_VERSION_ghc(9,4,0) let (tc_result,_) = GHC.tm_internals_ tcMod let tcMod' = tcMod #else tcMod' <- GHC.loadModule tcMod #endif dsMod <- fmap GHC.coreModule $ GHC.desugarModule tcMod' hsc_env <- GHC.getSession simpl_guts <- MonadUtils.liftIO $ HscMain.hscSimplify hsc_env [] dsMod checkForInvalidPrelude simpl_guts #if MIN_VERSION_ghc(9,4,0) opts <- liftIO (initTidyOpts hsc_env) (tidy_guts,_) <- MonadUtils.liftIO $ TidyPgm.tidyProgram opts simpl_guts #else (tidy_guts,_) <- MonadUtils.liftIO $ TidyPgm.tidyProgram hsc_env simpl_guts #endif #if MIN_VERSION_ghc(9,4,0) let loadAsByteCode | Just GHC.Target { targetAllowObjCode = obj } <- findTarget m (HscTypes.hsc_targets hsc_env) , not obj = True | otherwise = False lcl_dflags = GHC.ms_hspp_opts m old_paths = GHC.includePaths lcl_dflags location = GHC.ms_location m input_fn = fromMaybe (error "loadLocalModule") (GHC.ml_hs_file location) basename = dropExtension input_fn current_dir = takeDirectory basename #if MIN_VERSION_ghc(9,6,0) interpreterBackend = Backend.interpreterBackend #else interpreterBackend = Backend.Interpreter #endif (bcknd, dflags3) | loadAsByteCode = ( interpreterBackend , DynFlags.gopt_set (lcl_dflags { GHC.backend = interpreterBackend }) Opt_ForceRecomp ) | otherwise = (GHC.backend dflags, lcl_dflags) dflags = dflags3 { GHC.includePaths = offsetIncludePaths dflags3 $ DynFlags.addImplicitQuoteInclude old_paths [current_dir] } #if MIN_VERSION_ghc(9,6,0) pipelineOutput = Backend.backendPipelineOutput bcknd #else pipelineOutput = case bcknd of GHC.Interpreter -> NoOutputFile GHC.NoBackend -> NoOutputFile _ -> Persistent #endif upd_summary = m { GHC.ms_hspp_opts = dflags } hsc_env1 = HscTypes.hscSetFlags dflags hsc_env pipe_env = mkPipeEnv NoStop input_fn Nothing pipelineOutput pipeline = do ac <- use (T_HscPostTc hsc_env1 upd_summary (TcRnTypes.FrontendTypecheck tc_result) mempty Nothing ) hscBackendPipeline pipe_env hsc_env1 upd_summary ac (iface, linkable) <- liftIO (runPipeline (HscTypes.hsc_hooks hsc_env1) pipeline) #if MIN_VERSION_ghc(9,6,0) details <- liftIO (HscMain.initModDetails hsc_env1 iface) linkable1 <- liftIO (traverse (HscMain.initWholeCoreBindings hsc_env1 iface details) (homeMod_bytecode linkable)) let linkable2 = linkable {homeMod_bytecode = linkable1} #else details <- liftIO (HscMain.initModDetails hsc_env1 upd_summary iface) let linkable2 = linkable #endif let mod_info = HomeModInfo iface details linkable2 modifySession $ HscTypes.hscUpdateHUG (addHomeModInfoToHug mod_info) #endif let pgm = HscTypes.cg_binds tidy_guts let modFamInstEnv = TcRnTypes.tcg_fam_inst_env $ fst $ GHC.tm_internals_ tcMod _ <- GHC.setSessionDynFlags oldDFlags return (pgm,modFamInstEnv) let (binders,modFamInstEnvs) = unzip tidiedMods binderIds = map fst (CoreSyn.flattenBinds (concat binders)) plusFamInst f1 f2 = FamInstEnv.extendFamInstEnvList f1 (FamInstEnv.famInstEnvElts f2) modFamInstEnvs' = foldl' plusFamInst FamInstEnv.emptyFamInstEnv modFamInstEnvs rootModule = GHC.ms_mod_name . last $ modGraph2 -- Because tidiedMods is in topological order, binders is also, and hence -- the binders belonging to the "root" module are the last binders let rootIds = map fst . CoreSyn.flattenBinds $ last binders loaded0 <- loadExternalExprs hdl (concat binders) -- Find local primitive annotations localPrims <- findPrimitiveAnnotations hdl binderIds let loaded1 = loaded0{lbPrims=lbPrims loaded0 <> Seq.fromList localPrims} let allBinders = makeRecursiveGroups (Map.assocs (lbBinders loaded0)) pure (rootIds, modFamInstEnvs', rootModule, loaded1, allBinders) nameString :: Name.Name -> String nameString = OccName.occNameString . Name.nameOccName varNameString :: Var.Var -> String varNameString = nameString . Var.varName loadModules :: GHC.Ghc () -- ^ Allows us to have some initial action, such as sharing a linker state -- See https://github.com/clash-lang/clash-compiler/issues/1686 and -- https://mail.haskell.org/pipermail/ghc-devs/2021-March/019605.html -> OverridingBool -- ^ Use color -> HDL -- ^ HDL target -> String -- ^ Module name -> Maybe (DynFlags.DynFlags) -- ^ Flags to run GHC with -> [FilePath] -- ^ Import dirs to use when no DynFlags are provided -> IO ( [CoreSyn.CoreBind] -- Binders , [(CoreSyn.CoreBndr,Int)] -- Class operations , [CoreSyn.CoreBndr] -- Unlocatable Expressions , FamInstEnv.FamInstEnvs , [(CoreSyn.CoreBndr, Maybe TopEntity, Bool)] -- binder + synthesize annotation + is testbench? , [Either UnresolvedPrimitive FilePath] , [DataRepr'] , [(Text.Text, PrimitiveGuard ())] , HashMap Text.Text VDomainConfiguration -- domain names to configuration ) loadModules startAction useColor hdl modName dflagsM idirs = do libDir <- MonadUtils.liftIO ghcLibDir startTime <- Clock.getCurrentTime GHC.runGhc (Just libDir) $ do startAction -- 'mainFunIs' is set to Nothing due to issue #1304: -- https://github.com/clash-lang/clash-compiler/issues/1304 setupGhc useColor ((\d -> d{GHC.mainFunIs=Nothing}) <$> dflagsM) idirs setupTime <- MonadUtils.liftIO Clock.getCurrentTime let setupStartDiff = reportTimeDiff setupTime startTime MonadUtils.liftIO $ putStrLn $ "GHC: Setting up GHC took: " ++ setupStartDiff -- TODO: We currently load the transitive closure of _all_ bindings found -- TODO: in the top module. This is wasteful if one or more binders don't -- TODO: contribute to any top entities. This effect is worsened when using -- TODO: -main-is, which only synthesizes a single top entity (and all its -- TODO: dependencies). (rootIds, modFamInstEnvs, _rootModule, LoadedBinders{..}, allBinders) <- -- We need to try and load external modules first, because we can't -- recover from errors in 'loadLocalModule'. loadExternalModule hdl modName >>= \case Left _loadExternalErr -> loadLocalModule hdl modName Right res -> pure res let allBinderIds = map fst (CoreSyn.flattenBinds allBinders) modTime <- length allBinderIds `seq` MonadUtils.liftIO Clock.getCurrentTime let modStartDiff = reportTimeDiff modTime setupTime MonadUtils.liftIO $ putStrLn $ "GHC: Compiling and loading modules took: " ++ modStartDiff -- Get type family instances: accumulated by GhcMonad during -- 'loadExternalBinders' / 'loadExternalExprs' hscEnv <- GHC.getSession famInstEnvs <- do (msgs, m) <- TcRnMonad.liftIO $ TcRnMonad.initTcInteractive hscEnv FamInst.tcGetFamInstEnvs case m of Nothing -> TcRnMonad.liftIO $ throwIO $ HscTypes.mkSrcErr #if MIN_VERSION_ghc(9,4,0) $ fmap GhcTcRnMessage msgs #elif MIN_VERSION_ghc(9,2,0) $ Error.getErrorMessages msgs #else $ snd msgs #endif Just x -> return x allSyn <- Map.fromList <$> findSynthesizeAnnotations allBinderIds topSyn <- map fst <$> findSynthesizeAnnotations rootIds benchAnn <- findTestBenches rootIds reprs' <- findCustomReprAnnotations primGuards <- findPrimitiveGuardAnnotations allBinderIds let -- All binders synthesized with Synthesize, all binders annotated with -- TestBench and the binders they're pointing to, plus magically named -- functions called "topEntity" or "testBench". Synthesized in case user -- didn't specify a particular target. isMagicName = (`elem` ["topEntity", "testBench"]) allImplicit = nubSort $ Map.keys benchAnn <> Map.keys allSyn <> concat (Map.elems benchAnn) <> filter (isMagicName . varNameString) rootIds <> topSyn -- Top entities we wish to synthesize. Users can filter these with -main-is. topEntities1 = case GHC.mainFunIs =<< dflagsM of Just mainIsNm -> -- Use requested top entity. -- -- TODO: Look up associated test benches in 'benchAnn'. This would -- be wasted effort if implemented right now, as 'getMainTopEntity' -- would later remove them again. Functionality of that function -- should be moved here. -- -- TODO: Handle fully qualified names to -main-is case find ((==mainIsNm) . varNameString) rootIds of Nothing -> Panic.pgmError [I.i| No top-level function called '#{mainIsNm}' found. Did you forget to export it? |] Just top -> -- Note that we return /all/ top entities here, even the ones -- we don't which to synthesize. 'getMainTopEntity' will later -- restrict this to just this top entity (and its dependencies, -- which is why we return everything in the first place). -- -- This is quite wasteful though; als Clash will load all -- definitions even though it will end up using just a few. TODO nubSort (top:allImplicit) Nothing -> -- User didn't specify anything. case allImplicit of [] -> Panic.pgmError [I.i| No top-level function called 'topEntity' or 'testBench' found, nor any function annotated with a 'Synthesize' or 'TestBench' annotation. If you want to synthesize a specific binder in #{show modName}, use '-main-is myTopEntity'. |] _ -> allImplicit -- Include whether found top entity is a test bench allBenchIds = Set.fromList (concat (Map.elems benchAnn)) topEntities2 = topEntities1 <&> \tid -> ( tid , tid `Map.lookup` allSyn -- include top entity annotation (if any) , tid `Set.member` allBenchIds -- indicate whether top entity is test bench ) let reprs1 = lbReprs <> Seq.fromList reprs' let famInstEnvs' = (fst famInstEnvs, modFamInstEnvs) allTCInsts = FamInstEnv.famInstEnvElts (fst famInstEnvs') ++ FamInstEnv.famInstEnvElts (snd famInstEnvs') knownConfs = filter (\x -> "KnownConf" == nameString (FamInstEnv.fi_fam x)) allTCInsts #if MIN_VERSION_ghc(8,10,0) fsToText = Text.decodeUtf8 . FastString.bytesFS #else fsToText = Text.decodeUtf8 . FastString.fastStringToByteString #endif famToDomain = fromMaybe (error "KnownConf: Expected Symbol at LHS of type family") . join . fmap (fmap fsToText) . fmap Type.isStrLitTy . listToMaybe . FamInstEnv.fi_tys famToConf = unpackKnownConf . FamInstEnv.fi_rhs knownConfNms = fmap famToDomain knownConfs knownConfDs = fmap famToConf knownConfs knownConfMap = HashMap.fromList (zip knownConfNms knownConfDs) return ( allBinders , Map.assocs lbClassOps , Set.toList lbUnlocatable , famInstEnvs' , topEntities2 , toList lbPrims , toList reprs1 , primGuards , knownConfMap ) -- | Given a type that represents the RHS of a KnownConf type family instance, -- unpack the fields of the DomainConfiguration and make a VDomainConfiguration. -- unpackKnownConf :: Type.Type -> VDomainConfiguration unpackKnownConf ty | [d,p,ae,rk,ib,rp] <- Type.tyConAppArgs ty -- Domain name , Just dom <- fmap FastString.unpackFS (Type.isStrLitTy d) -- Period , Just period <- fmap naturalFromInteger (Type.isNumLitTy p) -- Active Edge , aeTc <- Type.tyConAppTyCon ae , Just aeDc <- TyCon.isPromotedDataCon_maybe aeTc , aeNm <- OccName.occNameString $ Name.nameOccName (DataCon.dataConName aeDc) -- Reset Kind , rkTc <- Type.tyConAppTyCon rk , Just rkDc <- TyCon.isPromotedDataCon_maybe rkTc , rkNm <- OccName.occNameString $ Name.nameOccName (DataCon.dataConName rkDc) -- Init Behavior , ibTc <- Type.tyConAppTyCon ib , Just ibDc <- TyCon.isPromotedDataCon_maybe ibTc , ibNm <- OccName.occNameString $ Name.nameOccName (DataCon.dataConName ibDc) -- Reset Polarity , rpTc <- Type.tyConAppTyCon rp , Just rpDc <- TyCon.isPromotedDataCon_maybe rpTc , rpNm <- OccName.occNameString $ Name.nameOccName (DataCon.dataConName rpDc) = VDomainConfiguration dom period (asActiveEdge aeNm) (asResetKind rkNm) (asInitBehavior ibNm) (asResetPolarity rpNm) | otherwise = error $ $(curLoc) ++ "Could not unpack domain configuration." where asActiveEdge :: HasCallStack => String -> ActiveEdge asActiveEdge x = fromMaybe (error $ $(curLoc) ++ "Unknown active edge: " ++ show x) (readMaybe x) asResetKind :: HasCallStack => String -> ResetKind asResetKind x = fromMaybe (error $ $(curLoc) ++ "Unknown reset kind: " ++ show x) (readMaybe x) asInitBehavior :: HasCallStack => String -> InitBehavior asInitBehavior x = fromMaybe (error $ $(curLoc) ++ "Unknown init behavior: " ++ show x) (readMaybe x) asResetPolarity :: HasCallStack => String -> ResetPolarity asResetPolarity x = fromMaybe (error $ $(curLoc) ++ "Unknown reset polarity: " ++ show x) (readMaybe x) -- | Given a set of bindings, make explicit non-recursive bindings and -- recursive binding groups. -- -- Needed because: -- 1. GHC does not preserve this information in interface files, -- 2. Binders in Clash's BindingsMap are not allowed to be mutually recursive, -- only self-recursive. -- 3. Clash.GHC.GenerateBindings.mkBindings turns groups of mutually recursive -- bindings into self-recursive bindings which can go into the BindingsMap. makeRecursiveGroups :: [(CoreSyn.CoreBndr,CoreSyn.CoreExpr)] -> [CoreSyn.CoreBind] makeRecursiveGroups = map makeBind . Digraph.stronglyConnCompFromEdgedVerticesUniq . map makeNode where makeNode :: (CoreSyn.CoreBndr,CoreSyn.CoreExpr) -> Digraph.Node Unique.Unique (CoreSyn.CoreBndr,CoreSyn.CoreExpr) makeNode (b,e) = Digraph.DigraphNode (b,e) (Var.varUnique b) (UniqSet.nonDetKeysUniqSet (CoreFVs.exprSomeFreeVars Var.isId e)) makeBind :: Digraph.SCC (CoreSyn.CoreBndr,CoreSyn.CoreExpr) -> CoreSyn.CoreBind makeBind (Digraph.AcyclicSCC (b,e)) = CoreSyn.NonRec b e makeBind (Digraph.CyclicSCC bs) = CoreSyn.Rec bs errOnDuplicateAnnotations :: String -- ^ Name of annotation -> [CoreSyn.CoreBndr] -- ^ Binders searched for -> [[a]] -- ^ Parsed annotations -> [(CoreSyn.CoreBndr, a)] errOnDuplicateAnnotations nm = combineAnnotationsWith err nm where err _ _ = Left $ "A binder can't have more than one '" ++ nm ++ "' annotation." combineAnnotationsWith :: forall a. (a -> a -> Either String a) -- ^ function to (attempts to) combine different annotations -> String -- ^ Name of annotation -> [CoreSyn.CoreBndr] -- ^ Binders searched for -> [[a]] -- ^ Parsed annotations -> [(CoreSyn.CoreBndr, a)] combineAnnotationsWith f nm bndrs anns = go (zip bndrs anns) where go :: [(CoreSyn.CoreBndr, [a])] -> [(CoreSyn.CoreBndr, a)] go [] = [] go ((_, []):ps) = go ps go ((b, (a:as)):ps) = case foldM f a as of Left err -> Panic.pgmError $ "Error processing '" ++ nm ++ "' annotations on " ++ Outputable.showSDocUnsafe (pprQualified $ Var.varName b) ++ ":\n" ++ err Right x -> (b, x) : go ps pprQualified :: Name.Name -> Outputable.SDoc pprQualified x = case Name.nameModule_maybe x of Just m -> Outputable.hcat [ppr m, Outputable.dot, ppr x] Nothing -> ppr x -- | Find annotations by given targets findAnnotationsByTargets :: (GHC.GhcMonad m, Data a, Typeable a) => [Annotations.AnnTarget Name.Name] -> m [[a]] findAnnotationsByTargets targets = #if MIN_VERSION_ghc(9,0,0) mapM (GHC.findGlobalAnns Serialized.deserializeWithData) targets #else mapM (GHC.findGlobalAnns GhcPlugins.deserializeWithData) targets #endif -- | Find all annotations of a certain type in all modules seen so far. findAllModuleAnnotations :: (GHC.GhcMonad m, Data a, Typeable a) => m [a] findAllModuleAnnotations = do hsc_env <- GHC.getSession ann_env <- liftIO $ HscTypes.prepareAnnotations hsc_env Nothing return $ concat #if MIN_VERSION_ghc(9,4,0) $ (\(mEnv,nEnv) -> ModuleEnv.moduleEnvElts mEnv <> NameEnv.nonDetNameEnvElts nEnv) #elif MIN_VERSION_ghc(9,0,0) $ (\(mEnv,nEnv) -> ModuleEnv.moduleEnvElts mEnv <> NameEnv.nameEnvElts nEnv) #else $ UniqFM.nonDetEltsUFM #endif $ Annotations.deserializeAnns #if MIN_VERSION_ghc(9,0,0) Serialized.deserializeWithData #else GhcPlugins.deserializeWithData #endif ann_env -- | Find all annotations belonging to all binders seen so far. findNamedAnnotations :: (GHC.GhcMonad m, Data a, Typeable a) => [CoreSyn.CoreBndr] -> m [[a]] findNamedAnnotations bndrs = findAnnotationsByTargets (map (Annotations.NamedTarget . Var.varName) bndrs) findPrimitiveGuardAnnotations :: GHC.GhcMonad m => [CoreSyn.CoreBndr] -> m [(Text.Text, (PrimitiveGuard ()))] findPrimitiveGuardAnnotations bndrs = do anns0 <- findNamedAnnotations bndrs let anns1 = combineAnnotationsWith combinePrimGuards "PrimitiveGuard" bndrs anns0 pure (map (first (qualifiedNameString' . Var.varName)) anns1) where combinePrimGuards a b = case (a,b) of (HasBlackBox x _, HasBlackBox y _) -> Right (HasBlackBox (x++y) ()) (DontTranslate , DontTranslate) -> Right DontTranslate (_,_) -> Left "One binder can't have both HasBlackBox and DontTranslate annotations." -- | Find annotations of type @DataReprAnn@ and convert them to @DataRepr'@ findCustomReprAnnotations :: GHC.GhcMonad m => m [DataRepr'] findCustomReprAnnotations = map dataReprAnnToDataRepr' <$> findAllModuleAnnotations -- | Find synthesize annotations and make sure each binder has no more than -- a single annotation. findSynthesizeAnnotations :: GHC.GhcMonad m => [CoreSyn.CoreBndr] -> m [(CoreSyn.CoreBndr, TopEntity)] findSynthesizeAnnotations bndrs = do anns <- findNamedAnnotations bndrs pure (errOnDuplicateAnnotations "Synthesize" bndrs (map (filter isSyn) anns)) where isSyn (Synthesize {}) = True isSyn _ = False -- | Find test bench annotations and return a map tying top entities to their -- test benches. If there is a binder called @testBench@ _without_ an annotation -- it assumed to belong to a binder called @topEntity@. If the latter does not -- exist, the function @testBench@ is left alone. findTestBenches :: GHC.GhcMonad m => -- | Root binders [CoreSyn.CoreBndr] -> -- | (design under test, associated test benches) m (Map.Map CoreSyn.CoreBndr [CoreSyn.CoreBndr]) findTestBenches bndrs0 = do anns <- findNamedAnnotations bndrs0 let duts0 = foldl' insertTb Map.empty (concat (zipWith go0 bndrs0 anns)) duts1 = specialCaseMagicName duts0 pure duts1 where insertTb m (dut, tb) = Map.insertWith (<>) dut [tb] m bndrsMap = HashMap.fromList (map (\x -> (toQualNm x, x)) bndrs0) -- Special case magic name 'testBench'. See function documentation. specialCaseMagicName m = let topEntM = find ((=="topEntity") . varNameString) bndrs0 tbM = find ((=="testBench") . varNameString) bndrs0 in case (topEntM, tbM) of (Just dut, Just tb) -> insertTb m (dut, tb) _ -> m -- go0 + go1: map over all annotations; look for test bench annotations and -- tie them to top entities indicated in the annotation. go0 bndr anns = mapMaybe (go1 bndr) anns go1 tbBndr (TestBench dutNm) = case HashMap.lookup (Text.pack (show dutNm)) bndrsMap of Nothing -> Panic.pgmError [I.i| Could not find design under test #{show (show dutNm)}, associated with test bench #{show (toQualNm tbBndr)}. Note that testbenches should be exported from the same module as the design under test. |] Just dutBndr -> Just (dutBndr, tbBndr) go1 _ _ = Nothing -- | Create a fully qualified name from a var, excluding package. Example -- output: @Clash.Sized.Internal.BitVector.low@. toQualNm :: Var.Var -> Text.Text toQualNm bndr = let bndrNm = Var.varName bndr occName = Text.pack (OccName.occNameString (Name.nameOccName bndrNm)) in maybe occName (\modName -> modName `Text.append` ('.' `Text.cons` occName)) (modNameM bndrNm) -- | Find primitive annotations bound to given binders, or annotations made -- in modules of those binders. findPrimitiveAnnotations :: GHC.GhcMonad m => HDL -> [CoreSyn.CoreBndr] -> m [Either UnresolvedPrimitive FilePath] findPrimitiveAnnotations hdl bndrs = do let annTargets = map (fmap Annotations.ModuleTarget . Name.nameModule_maybe) (map Var.varName bndrs) let targets = (catMaybes annTargets) ++ (map (Annotations.NamedTarget . Var.varName) bndrs) anns <- findAnnotationsByTargets targets concat <$> mapM (getUnresolvedPrimitives hdl) (concat $ zipWith (\t -> map ((,) t)) targets anns) parseModule :: GHC.GhcMonad m => GHC.ModSummary -> m GHC.ParsedModule parseModule modSum = do #if MIN_VERSION_ghc(9,2,0) (GHC.ParsedModule pmModSum pmParsedSource extraSrc) <- GHC.parseModule modSum return (GHC.ParsedModule (disableOptimizationsFlags pmModSum) pmParsedSource extraSrc) #else (GHC.ParsedModule pmModSum pmParsedSource extraSrc anns) <- GHC.parseModule modSum return (GHC.ParsedModule (disableOptimizationsFlags pmModSum) pmParsedSource extraSrc anns) #endif disableOptimizationsFlags :: GHC.ModSummary -> GHC.ModSummary disableOptimizationsFlags ms@(GHC.ModSummary {..}) = ms {GHC.ms_hspp_opts = dflags} where dflags = unwantedOptimizationFlags (ms_hspp_opts { DynFlags.reductionDepth = 1000 #if !MIN_VERSION_ghc(9,4,0) , DynFlags.optLevel = 2 #endif }) unwantedOptimizationFlags :: GHC.DynFlags -> GHC.DynFlags unwantedOptimizationFlags df = foldl' DynFlags.xopt_unset (foldl' DynFlags.gopt_unset df unwanted) unwantedLang where unwanted = [ Opt_LiberateCase -- Perform unrolling of recursive RHS: avoid , Opt_SpecConstr -- Creates local-functions: avoid , Opt_IgnoreAsserts -- We don't care about assertions , Opt_DoEtaReduction -- We want eta-expansion , Opt_UnboxStrictFields -- Unboxed types are not handled properly: avoid , Opt_UnboxSmallStrictFields -- Unboxed types are not handled properly: avoid , Opt_RegsGraph -- Don't care , Opt_RegsGraph -- Don't care , Opt_PedanticBottoms -- Stops eta-expansion through case: avoid , Opt_LlvmTBAA -- Don't care , Opt_CmmSink -- Don't care , Opt_CmmElimCommonBlocks -- Don't care , Opt_OmitYields -- Don't care , Opt_IgnoreInterfacePragmas -- We need all the unfoldings we can get , Opt_OmitInterfacePragmas -- We need all the unfoldings we can get , Opt_IrrefutableTuples -- Introduce irrefutPatError: avoid , Opt_Loopification -- STG pass, don't care , Opt_CprAnal -- The worker/wrapper introduced by CPR breaks Clash, see [NOTE: CPR breaks Clash] , Opt_FullLaziness -- increases sharing, but seems to result in worse circuits (in both area and propagation delay) ] -- Coercions between Integer and Clash' numeric primitives cause Clash to -- fail. As strictness only affects simulation behavior, removing them -- is perfectly safe. unwantedLang = [ LangExt.Strict , LangExt.StrictData ] -- [NOTE: CPR breaks Clash] -- We used to completely disable strictness analysis because it causes GHC to -- do the so-called "Constructed Product Result" (CPR) analysis, which in turn -- creates an annoying worker/wrapper which does the following: -- -- * Scrutinise a Signal, and pack the head and tail of the -- Signal in an unboxed tuple. -- * Scrutinise on the unboxed tuple, and recreate the Signal. -- -- This is problematic because the 'Signal' type is essentially treated as a "transparent" -- type by the Clash compiler, so observing its constructor leads to all kinds -- of problems. -- -- The current solution is to disable strictness analysis in "Clash.Signal.Internal" -- so that functions manipulating 'Signal' constructor do not get a strictness/ -- demand/CPR annotation, which in turn ensures GHC doesn't create worker/wrappers -- for when these functions are called in user code. -- -- Ultimately we should stop treating Signal as a "transparent" type and deal -- handling of the Signal type, and the involved co-recursive functions, -- properly. At the moment, Clash cannot deal with this recursive type and the -- recursive functions involved, and hence we need to disable this useful transformation. After -- everything is done properly, we should enable it again. setWantedLanguageExtensions :: GHC.DynFlags -> GHC.DynFlags setWantedLanguageExtensions df = foldl' DynFlags.gopt_set (foldl' DynFlags.xopt_unset (foldl' DynFlags.xopt_set df wantedLanguageExtensions) unwantedLanguageExtensions) wantedOptimizations where wantedOptimizations = [ Opt_CSE -- CSE , Opt_Specialise -- Specialise on types, specialise type-class-overloaded function defined in this module for the types , Opt_DoLambdaEtaExpansion -- transform nested series of lambdas into one with multiple arguments, helps us achieve only top-level lambdas , Opt_CaseMerge -- We want fewer case-statements , Opt_DictsCheap -- Makes dictionaries seem cheap to optimizer: hopefully inline , Opt_ExposeAllUnfoldings -- We need all the unfoldings we can get , Opt_ForceRecomp -- Force recompilation: never bad , Opt_EnableRewriteRules -- Reduce number of functions , Opt_SimplPreInlining -- Inlines simple functions, we only care about the major first-order structure , Opt_StaticArgumentTransformation -- Turn on the static argument transformation, which turns a recursive function into a non-recursive one with a local recursive loop. , Opt_FloatIn -- Moves let-bindings inwards, although it defeats the normal-form with a single top-level let-binding, it helps with other transformations , Opt_DictsStrict -- Hopefully helps remove class method selectors , Opt_DmdTxDictSel -- I think demand and strictness are related, strictness helps with dead-code, enable , Opt_Strictness -- Strictness analysis helps with dead-code analysis. However, see [NOTE: CPR breaks Clash] , Opt_SpecialiseAggressively -- Needed to compile Fixed point number functions quickly , Opt_CrossModuleSpecialise -- Needed to compile Fixed point number functions quickly ] -- | Remove all strictness annotations: -- -- * Remove strictness annotations from data type declarations -- (only works for data types that are currently being compiled, i.e., -- that are not part of a pre-compiled imported library) -- -- We need to remove strictness annotations because GHC will introduce casts -- between Integer and Clash' numeric primitives otherwise, where Clash will -- error when it sees such casts. The reason it does this is because -- Integer is a completely unconstrained integer type and is currently -- (erroneously) translated to a 64-bit integer in the HDL; this means that -- we could lose bits when the original numeric type had more bits than 64. -- -- Removing these strictness annotations is perfectly safe, as they only -- affect simulation behavior. removeStrictnessAnnotations :: GHC.ParsedModule -> GHC.ParsedModule removeStrictnessAnnotations pm = pm {GHC.pm_parsed_source = fmap rmPS (GHC.pm_parsed_source pm)} where -- rmPS :: GHC.DataId name => GHC.HsModule name -> GHC.HsModule name rmPS hsm = hsm {GHC.hsmodDecls = (fmap . fmap) rmHSD (GHC.hsmodDecls hsm)} -- rmHSD :: GHC.DataId name => GHC.HsDecl name -> GHC.HsDecl name rmHSD (GHC.TyClD x tyClDecl) = GHC.TyClD x (rmTyClD tyClDecl) rmHSD hsd = hsd -- rmTyClD :: GHC.DataId name => GHC.TyClDecl name -> GHC.TyClDecl name rmTyClD dc@(GHC.DataDecl {}) = dc {GHC.tcdDataDefn = rmDataDefn (GHC.tcdDataDefn dc)} rmTyClD tyClD = tyClD -- rmDataDefn :: GHC.DataId name => GHC.HsDataDefn name -> GHC.HsDataDefn name #if MIN_VERSION_ghc(9,2,0) rmDataDefn :: GHC.HsDataDefn GHC.GhcPs -> GHC.HsDataDefn GHC.GhcPs #endif rmDataDefn hdf = hdf {GHC.dd_cons = (fmap . fmap) rmCD (GHC.dd_cons hdf)} -- rmCD :: GHC.DataId name => GHC.ConDecl name -> GHC.ConDecl name rmCD gadt@(GHC.ConDeclGADT {}) = gadt {GHC.con_res_ty = rmHsType (GHC.con_res_ty gadt) #if MIN_VERSION_ghc(9,2,0) ,GHC.con_g_args = rmGConDetails (GHC.con_g_args gadt) #else ,GHC.con_args = rmConDetails (GHC.con_args gadt) #endif } rmCD h98@(GHC.ConDeclH98 {}) = h98 {GHC.con_args = rmConDetails (GHC.con_args h98)} #if !MIN_VERSION_ghc(9,0,0) rmCD xcon = xcon #endif #if MIN_VERSION_ghc(9,4,0) rmGConDetails :: GHC.HsConDeclGADTDetails GHC.GhcPs -> GHC.HsConDeclGADTDetails GHC.GhcPs rmGConDetails (GHC.PrefixConGADT args) = GHC.PrefixConGADT (fmap rmHsScaledType args) rmGConDetails (GHC.RecConGADT rec tkn) = GHC.RecConGADT ((fmap . fmap . fmap) rmConDeclF rec) tkn #elif MIN_VERSION_ghc(9,2,0) rmGConDetails :: GHC.HsConDeclGADTDetails GHC.GhcPs -> GHC.HsConDeclGADTDetails GHC.GhcPs rmGConDetails (GHC.PrefixConGADT args) = GHC.PrefixConGADT (fmap rmHsScaledType args) rmGConDetails (GHC.RecConGADT rec) = GHC.RecConGADT ((fmap . fmap . fmap) rmConDeclF rec) #endif -- type HsConDeclDetails name = HsConDetails (LBangType name) (Located [LConDeclField name]) -- rmConDetails :: _ => GHC.HsConDeclDetails name -> GHC.HsConDeclDetails name #if MIN_VERSION_ghc(9,2,0) rmConDetails (GHC.PrefixCon tys args) = GHC.PrefixCon tys (fmap rmHsScaledType args) rmConDetails (GHC.InfixCon l r) = GHC.InfixCon (rmHsScaledType l) (rmHsScaledType r) #elif MIN_VERSION_ghc(9,0,0) rmConDetails (GHC.PrefixCon args) = GHC.PrefixCon (fmap rmHsScaledType args) rmConDetails (GHC.InfixCon l r) = GHC.InfixCon (rmHsScaledType l) (rmHsScaledType r) #else rmConDetails (GHC.PrefixCon args) = GHC.PrefixCon (fmap rmHsType args) rmConDetails (GHC.InfixCon l r) = GHC.InfixCon (rmHsType l) (rmHsType r) #endif rmConDetails (GHC.RecCon rec) = GHC.RecCon ((fmap . fmap . fmap) rmConDeclF rec) -- rmHsType :: GHC.DataId name => GHC.Located (GHC.HsType name) -> GHC.Located (GHC.HsType name) rmHsType = transform go where #if MIN_VERSION_ghc(9,2,0) go :: GHC.LBangType GHC.GhcPs -> GHC.LBangType GHC.GhcPs #endif go (GHC.unLoc -> GHC.HsBangTy _ _ ty) = ty go ty = ty #if MIN_VERSION_ghc(9,0,0) rmHsScaledType = transform go where #if MIN_VERSION_ghc(9,2,0) go :: GHC.HsScaled GHC.GhcPs (GHC.LBangType GHC.GhcPs) -> GHC.HsScaled GHC.GhcPs (GHC.LBangType GHC.GhcPs) #endif go (GHC.HsScaled m (GHC.unLoc -> GHC.HsBangTy _ _ ty)) = GHC.HsScaled m ty go ty = ty #endif -- rmConDeclF :: GHC.DataId name => GHC.ConDeclField name -> GHC.ConDeclField name rmConDeclF cdf = cdf {GHC.cd_fld_type = rmHsType (GHC.cd_fld_type cdf)} -- | The package id of the clash-prelude we were built with preludePkgId :: String preludePkgId = $(lift $ pkgIdFromTypeable (undefined :: TopEntity)) -- | Check that we're using the same clash-prelude as we were built with -- -- Because if they differ clash won't be able to recognize any ANNotations. checkForInvalidPrelude :: Monad m => HscTypes.ModGuts -> m () checkForInvalidPrelude guts = case filter isWrongPrelude pkgIds of [] -> return () (x:_) -> throw (ClashException noSrcSpan (msgWrongPrelude x) Nothing) where #if MIN_VERSION_ghc(9,4,0) pkgs = HscTypes.dep_direct_pkgs . HscTypes.mg_deps $ guts #else pkgs = HscTypes.dep_pkgs . HscTypes.mg_deps $ guts #endif #if MIN_VERSION_ghc(9,4,0) pkgIds = map (UnitTypes.unitIdString) (toList pkgs) #elif MIN_VERSION_ghc(9,0,0) pkgIds = map (UnitTypes.unitIdString . fst) pkgs #else pkgIds = map (GhcPlugins.installedUnitIdString . fst) pkgs #endif prelude = "clash-prelude-" isPrelude pkg = case splitAt (length prelude) pkg of (x,y:_) | x == prelude && isDigit y -> True -- check for a digit so we don't match clash-prelude-extras _ -> False isWrongPrelude pkg = isPrelude pkg && pkg /= preludePkgId msgWrongPrelude pkg = unlines ["Clash only works with the exact clash-prelude it was built with." ,"Clash was built with: " ++ preludePkgId ,"So can't run with: " ++ pkg ]