\begin{code}
module HscMain
( newHscEnv, hscCmmFile
- , hscFileCheck
, hscParseIdentifier
+ , hscSimplify
+ , evalComp
+ , hscNormalIface, hscWriteIface, hscOneShot
+ , CompState (..)
#ifdef GHCI
, hscStmt, hscTcExpr, hscKcType
, compileExpr
, hscCompileInteractive -- :: Compiler (InteractiveStatus, ModIface, ModDetails)
, HscStatus (..)
, InteractiveStatus (..)
- , HscChecked (..)
+
+ -- The new interface
+ , parseFile
+ , typecheckModule
+ , typecheckRenameModule
+ , deSugarModule
+ , makeSimpleIface
+ , makeSimpleDetails
) where
#include "HsVersions.h"
#ifdef GHCI
-import HsSyn ( Stmt(..), LStmt, LHsType )
import CodeOutput ( outputForeignStubs )
import ByteCodeGen ( byteCodeGen, coreExprToBCOs )
import Linker ( HValue, linkExpr )
import CoreTidy ( tidyExpr )
import CorePrep ( corePrepExpr )
-import Flattening ( flattenExpr )
import Desugar ( deSugarExpr )
import SimplCore ( simplifyExpr )
import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnType )
import Var ( Id )
import Module ( emptyModuleEnv, ModLocation(..), Module )
-import RdrName ( GlobalRdrEnv, RdrName, emptyGlobalRdrEnv )
-import HsSyn ( HsModule, LHsBinds, HsGroup, LIE, LImportDecl, HsDoc,
- HaddockModInfo )
+import RdrName
+import HsSyn
import CoreSyn
import SrcLoc ( Located(..) )
import StringBuffer
import Parser
import Lexer
import SrcLoc ( mkSrcLoc )
-import TcRnDriver ( tcRnModule, tcRnExtCore )
+import TcRnDriver ( tcRnModule )
import TcIface ( typecheckIface )
import TcRnMonad ( initIfaceCheck, TcGblEnv(..) )
import IfaceEnv ( initNameCache )
import LoadIface ( ifaceStats, initExternalPackageState )
import PrelInfo ( wiredInThings, basicKnownKeyNames )
-import MkIface ( checkOldIface, mkIface, writeIfaceFile )
+import MkIface
import Desugar ( deSugar )
import SimplCore ( core2core )
-import TidyPgm ( tidyProgram, mkBootModDetails )
+import TidyPgm
import CorePrep ( corePrepPgm )
import CoreToStg ( coreToStg )
import StgSyn
import HscStats ( ppSourceStats )
import HscTypes
import MkExternalCore ( emitExternalCore )
-import ParserCore
-import ParserCoreUtils
import FastString
-import UniqFM ( emptyUFM )
+import LazyUniqFM ( emptyUFM )
import UniqSupply ( initUs_ )
import Bag ( unitBag )
\end{code}
+\begin{code}
+-- | parse a file, returning the abstract syntax
+parseFile :: HscEnv -> ModSummary -> IO (Maybe (Located (HsModule RdrName)))
+parseFile hsc_env mod_summary
+ = do
+ maybe_parsed <- myParseModule dflags hspp_file hspp_buf
+ case maybe_parsed of
+ Left err
+ -> do printBagOfErrors dflags (unitBag err)
+ return Nothing
+ Right rdr_module
+ -> return (Just rdr_module)
+ where
+ dflags = hsc_dflags hsc_env
+ hspp_file = ms_hspp_file mod_summary
+ hspp_buf = ms_hspp_buf mod_summary
+
+-- | Rename and typecheck a module
+typecheckModule :: HscEnv -> ModSummary -> Located (HsModule RdrName)
+ -> IO (Maybe TcGblEnv)
+typecheckModule hsc_env mod_summary rdr_module
+ = do
+ (tc_msgs, maybe_tc_result)
+ <- {-# SCC "Typecheck-Rename" #-}
+ tcRnModule hsc_env (ms_hsc_src mod_summary) False rdr_module
+ printErrorsAndWarnings dflags tc_msgs
+ return maybe_tc_result
+ where
+ dflags = hsc_dflags hsc_env
+
+type RenamedStuff =
+ (Maybe (HsGroup Name, [LImportDecl Name], Maybe [LIE Name],
+ Maybe (HsDoc Name), HaddockModInfo Name))
+
+-- | Rename and typecheck a module, additinoally returning the renamed syntax
+typecheckRenameModule :: HscEnv -> ModSummary -> Located (HsModule RdrName)
+ -> IO (Maybe (TcGblEnv, RenamedStuff))
+typecheckRenameModule hsc_env mod_summary rdr_module
+ = do
+ (tc_msgs, maybe_tc_result)
+ <- {-# SCC "Typecheck-Rename" #-}
+ tcRnModule hsc_env (ms_hsc_src mod_summary) True rdr_module
+ printErrorsAndWarnings dflags tc_msgs
+ case maybe_tc_result of
+ Nothing -> return Nothing
+ Just tc_result -> do
+ let rn_info = do decl <- tcg_rn_decls tc_result
+ imports <- tcg_rn_imports tc_result
+ let exports = tcg_rn_exports tc_result
+ let doc = tcg_doc tc_result
+ let hmi = tcg_hmi tc_result
+ return (decl,imports,exports,doc,hmi)
+ return (Just (tc_result, rn_info))
+ where
+ dflags = hsc_dflags hsc_env
+
+-- | Convert a typechecked module to Core
+deSugarModule :: HscEnv -> ModSummary -> TcGblEnv -> IO (Maybe ModGuts)
+deSugarModule hsc_env mod_summary tc_result
+ = deSugar hsc_env (ms_location mod_summary) tc_result
+
+-- | Make a 'ModIface' from the results of typechecking. Used when
+-- not optimising, and the interface doesn't need to contain any
+-- unfoldings or other cross-module optimisation info.
+-- ToDo: the old interface is only needed to get the version numbers,
+-- we should use fingerprint versions instead.
+makeSimpleIface :: HscEnv -> Maybe ModIface -> TcGblEnv -> ModDetails
+ -> IO (ModIface,Bool)
+makeSimpleIface hsc_env maybe_old_iface tc_result details = do
+ mkIfaceTc hsc_env maybe_old_iface details tc_result
+
+-- | Make a 'ModDetails' from the results of typechecking. Used when
+-- typechecking only, as opposed to full compilation.
+makeSimpleDetails :: HscEnv -> TcGblEnv -> IO ModDetails
+makeSimpleDetails hsc_env tc_result = mkBootModDetailsTc hsc_env tc_result
+
+-- deSugarModule :: HscEnv -> TcGblEnv -> IO Core
+\end{code}
+
%************************************************************************
%* *
The main compiler pipeline
\begin{code}
-data HscChecked
- = HscChecked
- -- parsed
- (Located (HsModule RdrName))
- -- renamed
- (Maybe (HsGroup Name, [LImportDecl Name], Maybe [LIE Name],
- Maybe (HsDoc Name), HaddockModInfo Name))
- -- typechecked
- (Maybe (LHsBinds Id, GlobalRdrEnv, ModDetails))
- -- desugared
- (Maybe [CoreBind])
-
-- Status of a compilation to hard-code or nothing.
data HscStatus
= HscNoRecomp
-> Maybe (Int,Int) -- Just (i,n) <=> module i of n (for msgs)
-> IO (Maybe result)
-
--- This functions checks if recompilation is necessary and
--- then combines the FrontEnd and BackEnd to a working compiler.
-hscMkCompiler :: NoRecomp result -- What to do when recompilation isn't required.
- -> (Maybe (Int,Int) -> Bool -> Comp ())
- -> Comp (Maybe ModGuts) -- Front end
- -> (ModGuts -> Comp result) -- Backend.
- -> Compiler result
-hscMkCompiler norecomp messenger frontend backend
- hsc_env mod_summary source_unchanged
- mbOldIface mbModIndex
- = flip evalComp (CompState hsc_env mod_summary mbOldIface) $
- do (recomp_reqd, mbCheckedIface)
- <- {-# SCC "checkOldIface" #-}
- liftIO $ checkOldIface hsc_env mod_summary
- source_unchanged mbOldIface
- -- save the interface that comes back from checkOldIface.
- -- In one-shot mode we don't have the old iface until this
- -- point, when checkOldIface reads it from the disk.
- modify (\s -> s{ compOldIface = mbCheckedIface })
- case mbCheckedIface of
- Just iface | not recomp_reqd
- -> do messenger mbModIndex False
- result <- norecomp iface
- return (Just result)
- _otherwise
- -> do messenger mbModIndex True
- mbCore <- frontend
- case mbCore of
- Nothing
- -> return Nothing
- Just core
- -> do result <- backend core
- return (Just result)
-
--------------------------------------------------------------
-- Compilers
--------------------------------------------------------------
-- Compile Haskell, boot and extCore in OneShot mode.
hscCompileOneShot :: Compiler HscStatus
hscCompileOneShot
- = hscCompiler norecompOneShot oneShotMsg backend boot_backend
+ = hscCompiler norecompOneShot oneShotMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscWriteIface >>= hscOneShot
- boot_backend inp = hscSimpleIface inp >>= hscWriteIface >> return (HscRecomp False)
+ boot_backend inp = hscSimpleIface inp >>= hscWriteIface >> return (Just (HscRecomp False))
-- Compile Haskell, boot and extCore in batch mode.
hscCompileBatch :: Compiler (HscStatus, ModIface, ModDetails)
hscCompileBatch
- = hscCompiler norecompBatch batchMsg backend boot_backend
+ = hscCompiler norecompBatch batchMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscWriteIface >>= hscBatch
boot_backend inp = hscSimpleIface inp >>= hscWriteIface >>= hscNothing
--- Type-check Haskell, boot and extCore.
--- Does it make sense to compile extCore to nothing?
-hscCompileNothing :: Compiler (HscStatus, ModIface, ModDetails)
-hscCompileNothing
- = hscCompiler norecompBatch batchMsg backend backend
- where
- backend inp = hscSimpleIface inp >>= hscIgnoreIface >>= hscNothing
-
-- Compile Haskell, extCore to bytecode.
hscCompileInteractive :: Compiler (InteractiveStatus, ModIface, ModDetails)
hscCompileInteractive
- = hscCompiler norecompInteractive batchMsg backend boot_backend
+ = hscCompiler norecompInteractive batchMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscIgnoreIface >>= hscInteractive
- boot_backend = panic "hscCompileInteractive: can't do boot files here"
+ boot_backend _ = panic "hscCompileInteractive: HsBootFile"
+-- Type-check Haskell and .hs-boot only (no external core)
+hscCompileNothing :: Compiler (HscStatus, ModIface, ModDetails)
+hscCompileNothing
+ = hscCompiler norecompBatch batchMsg comp
+ where
+ backend tc = hscSimpleIface tc >>= hscIgnoreIface >>= hscNothing
+
+ comp = do -- genComp doesn't fit here, because we want to omit
+ -- desugaring and for the backend to take a TcGblEnv
+ mod_summary <- gets compModSummary
+ case ms_hsc_src mod_summary of
+ ExtCoreFile -> panic "hscCompileNothing: cannot do external core"
+ _other -> do
+ mb_tc <- hscFileFrontEnd
+ case mb_tc of
+ Nothing -> return Nothing
+ Just tc_result -> backend tc_result
+
hscCompiler
- :: NoRecomp result -- No recomp necessary
- -> (Maybe (Int,Int) -> Bool -> Comp ()) -- Message callback
- -> (ModGuts -> Comp result) -- Compile normal file
- -> (ModGuts -> Comp result) -- Compile boot file
+ :: NoRecomp result -- No recomp necessary
+ -> (Maybe (Int,Int) -> Bool -> Comp ()) -- Message callback
+ -> Comp (Maybe result)
-> Compiler result
-hscCompiler norecomp msg nonBootComp bootComp hsc_env mod_summary =
- hscMkCompiler norecomp msg frontend backend hsc_env mod_summary
- where
- (frontend,backend)
- = case ms_hsc_src mod_summary of
- ExtCoreFile -> (hscCoreFrontEnd, nonBootComp)
- HsSrcFile -> (hscFileFrontEnd, nonBootComp)
- HsBootFile -> (hscFileFrontEnd, bootComp)
+hscCompiler norecomp messenger recomp hsc_env mod_summary
+ source_unchanged mbOldIface mbModIndex
+ = flip evalComp (CompState hsc_env mod_summary mbOldIface) $
+ do (recomp_reqd, mbCheckedIface)
+ <- {-# SCC "checkOldIface" #-}
+ liftIO $ checkOldIface hsc_env mod_summary
+ source_unchanged mbOldIface
+ -- save the interface that comes back from checkOldIface.
+ -- In one-shot mode we don't have the old iface until this
+ -- point, when checkOldIface reads it from the disk.
+ modify (\s -> s{ compOldIface = mbCheckedIface })
+ case mbCheckedIface of
+ Just iface | not recomp_reqd
+ -> do messenger mbModIndex False
+ result <- norecomp iface
+ return (Just result)
+ _otherwise
+ -> do messenger mbModIndex True
+ recomp
+
+-- the usual way to build the Comp (Maybe result) to pass to hscCompiler
+genComp :: (ModGuts -> Comp (Maybe a))
+ -> (TcGblEnv -> Comp (Maybe a))
+ -> Comp (Maybe a)
+genComp backend boot_backend = do
+ mod_summary <- gets compModSummary
+ case ms_hsc_src mod_summary of
+ ExtCoreFile -> do
+ panic "GHC does not currently support reading External Core files"
+ _not_core -> do
+ mb_tc <- hscFileFrontEnd
+ case mb_tc of
+ Nothing -> return Nothing
+ Just tc_result ->
+ case ms_hsc_src mod_summary of
+ HsBootFile -> boot_backend tc_result
+ _other -> do
+ mb_guts <- hscDesugar tc_result
+ case mb_guts of
+ Nothing -> return Nothing
+ Just guts -> backend guts
--------------------------------------------------------------
-- NoRecomp handlers
norecompWorker :: a -> Bool -> NoRecomp (a, ModIface, ModDetails)
norecompWorker a _isInterp old_iface
= do hsc_env <- gets compHscEnv
- _mod_summary <- gets compModSummary
liftIO $ do
new_details <- {-# SCC "tcRnIface" #-}
initIfaceCheck hsc_env $
--------------------------------------------------------------
-- FrontEnds
--------------------------------------------------------------
-
-hscCoreFrontEnd :: Comp (Maybe ModGuts)
-hscCoreFrontEnd =
- do hsc_env <- gets compHscEnv
- mod_summary <- gets compModSummary
- liftIO $ do
- -------------------
- -- PARSE
- -------------------
- inp <- readFile (ms_hspp_file mod_summary)
- case parseCore inp 1 of
- FailP s
- -> do errorMsg (hsc_dflags hsc_env) (text s{-ToDo: wrong-})
- return Nothing
- OkP rdr_module
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- -> do (tc_msgs, maybe_tc_result) <- {-# SCC "TypeCheck" #-}
- tcRnExtCore hsc_env rdr_module
- printErrorsAndWarnings (hsc_dflags hsc_env) tc_msgs
- case maybe_tc_result of
- Nothing -> return Nothing
- Just mod_guts -> return (Just mod_guts) -- No desugaring to do!
-
-
-hscFileFrontEnd :: Comp (Maybe ModGuts)
+hscFileFrontEnd :: Comp (Maybe TcGblEnv)
hscFileFrontEnd =
do hsc_env <- gets compHscEnv
mod_summary <- gets compModSummary
<- {-# SCC "Typecheck-Rename" #-}
tcRnModule hsc_env (ms_hsc_src mod_summary) False rdr_module
printErrorsAndWarnings dflags tc_msgs
- case maybe_tc_result of
- Nothing
- -> return Nothing
- Just tc_result
- -------------------
- -- DESUGAR
- -------------------
- -> {-# SCC "DeSugar" #-} deSugar hsc_env (ms_location mod_summary) tc_result
+ return maybe_tc_result
+
+--------------------------------------------------------------
+-- Desugaring
+--------------------------------------------------------------
+
+hscDesugar :: TcGblEnv -> Comp (Maybe ModGuts)
+hscDesugar tc_result
+ = do mod_summary <- gets compModSummary
+ hsc_env <- gets compHscEnv
+ liftIO $ do
+ -------------------
+ -- DESUGAR
+ -------------------
+ ds_result <- {-# SCC "DeSugar" #-}
+ deSugar hsc_env (ms_location mod_summary) tc_result
+ return ds_result
--------------------------------------------------------------
-- Simplifiers
-- HACK: we return ModGuts even though we know it's not gonna be used.
-- We do this because the type signature needs to be identical
-- in structure to the type of 'hscNormalIface'.
-hscSimpleIface :: ModGuts -> Comp (ModIface, Bool, ModDetails, ModGuts)
-hscSimpleIface ds_result
+hscSimpleIface :: TcGblEnv -> Comp (ModIface, Bool, ModDetails, TcGblEnv)
+hscSimpleIface tc_result
= do hsc_env <- gets compHscEnv
- _mod_summary <- gets compModSummary
maybe_old_iface <- gets compOldIface
liftIO $ do
- details <- mkBootModDetails hsc_env ds_result
+ details <- mkBootModDetailsTc hsc_env tc_result
(new_iface, no_change)
<- {-# SCC "MkFinalIface" #-}
- mkIface hsc_env maybe_old_iface ds_result details
+ mkIfaceTc hsc_env maybe_old_iface details tc_result
-- And the answer is ...
dumpIfaceStats hsc_env
- return (new_iface, no_change, details, ds_result)
+ return (new_iface, no_change, details, tc_result)
hscNormalIface :: ModGuts -> Comp (ModIface, Bool, ModDetails, CgGuts)
hscNormalIface simpl_result
-- until after code output
(new_iface, no_change)
<- {-# SCC "MkFinalIface" #-}
- mkIface hsc_env maybe_old_iface simpl_result details
+ mkIface hsc_env maybe_old_iface details simpl_result
-- Emit external core
- emitExternalCore (hsc_dflags hsc_env) (availsToNameSet (mg_exports simpl_result)) cg_guts -- Move this? --Lemmih 03/07/2006
+ -- This should definitely be here and not after CorePrep,
+ -- because CorePrep produces unqualified constructor wrapper declarations,
+ -- so its output isn't valid External Core (without some preprocessing).
+ emitExternalCore (hsc_dflags hsc_env) cg_guts
dumpIfaceStats hsc_env
-------------------
= return (iface, details, a)
-- Don't output any code.
-hscNothing :: (ModIface, ModDetails, a) -> Comp (HscStatus, ModIface, ModDetails)
+hscNothing :: (ModIface, ModDetails, a) -> Comp (Maybe (HscStatus, ModIface, ModDetails))
hscNothing (iface, details, _)
- = return (HscRecomp False, iface, details)
+ = return (Just (HscRecomp False, iface, details))
-- Generate code and return both the new ModIface and the ModDetails.
-hscBatch :: (ModIface, ModDetails, CgGuts) -> Comp (HscStatus, ModIface, ModDetails)
+hscBatch :: (ModIface, ModDetails, CgGuts) -> Comp (Maybe (HscStatus, ModIface, ModDetails))
hscBatch (iface, details, cgguts)
= do hasStub <- hscCompile cgguts
- return (HscRecomp hasStub, iface, details)
+ return (Just (HscRecomp hasStub, iface, details))
-- Here we don't need the ModIface and ModDetails anymore.
-hscOneShot :: (ModIface, ModDetails, CgGuts) -> Comp HscStatus
+hscOneShot :: (ModIface, ModDetails, CgGuts) -> Comp (Maybe HscStatus)
hscOneShot (_, _, cgguts)
= do hasStub <- hscCompile cgguts
- return (HscRecomp hasStub)
+ return (Just (HscRecomp hasStub))
-- Compile to hard-code.
hscCompile :: CgGuts -> Comp Bool
codeGen dflags this_mod data_tycons
dir_imps cost_centre_info
stg_binds hpc_info
- -------- Optionally convert to and from zipper ------
- cmms <-
- if dopt Opt_ConvertToZipCfgAndBack dflags
- then mapM (testCmmConversion dflags) cmms
- else return cmms
- ------------ Optionally convert to CPS --------------
- cmms <-
- if not (dopt Opt_ConvertToZipCfgAndBack dflags) &&
- dopt Opt_RunCPSZ dflags
- then cmmCPS dflags cmms
- else return cmms
+ --- Optionally run experimental Cmm transformations ---
+ cmms <- optionallyConvertAndOrCPS dflags cmms
+ -- ^ unless certain dflags are on, the identity function
------------------ Code output -----------------------
rawcmms <- cmmToRawCmm cmms
(_stub_h_exists, stub_c_exists)
return stub_c_exists
hscInteractive :: (ModIface, ModDetails, CgGuts)
- -> Comp (InteractiveStatus, ModIface, ModDetails)
+ -> Comp (Maybe (InteractiveStatus, ModIface, ModDetails))
#ifdef GHCI
hscInteractive (iface, details, cgguts)
= do hsc_env <- gets compHscEnv
------------------ Create f-x-dynamic C-side stuff ---
(_istub_h_exists, istub_c_exists)
<- outputForeignStubs dflags this_mod location foreign_stubs
- return (InteractiveRecomp istub_c_exists comp_bc mod_breaks, iface, details)
+ return (Just (InteractiveRecomp istub_c_exists comp_bc mod_breaks, iface, details))
#else
hscInteractive _ = panic "GHC not compiled with interpreter"
#endif
------------------------------
-hscFileCheck :: HscEnv -> ModSummary -> Bool -> IO (Maybe HscChecked)
-hscFileCheck hsc_env mod_summary compileToCore = do {
- -------------------
- -- PARSE
- -------------------
- ; let dflags = hsc_dflags hsc_env
- hspp_file = ms_hspp_file mod_summary
- hspp_buf = ms_hspp_buf mod_summary
-
- ; maybe_parsed <- myParseModule dflags hspp_file hspp_buf
-
- ; case maybe_parsed of {
- Left err -> do { printBagOfErrors dflags (unitBag err)
- ; return Nothing } ;
- Right rdr_module -> do {
-
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- (tc_msgs, maybe_tc_result)
- <- {-# SCC "Typecheck-Rename" #-}
- tcRnModule hsc_env (ms_hsc_src mod_summary)
- True{-save renamed syntax-}
- rdr_module
-
- ; printErrorsAndWarnings dflags tc_msgs
- ; case maybe_tc_result of {
- Nothing -> return (Just (HscChecked rdr_module Nothing Nothing Nothing));
- Just tc_result -> do
- let type_env = tcg_type_env tc_result
- md = ModDetails {
- md_types = type_env,
- md_exports = tcg_exports tc_result,
- md_insts = tcg_insts tc_result,
- md_fam_insts = tcg_fam_insts tc_result,
- md_rules = [panic "no rules"],
- -- Rules are CoreRules, not the
- -- RuleDecls we get out of the typechecker
- md_vect_info = noVectInfo
- -- VectInfo is added by the Core
- -- vectorisation pass
- }
- rnInfo = do decl <- tcg_rn_decls tc_result
- imports <- tcg_rn_imports tc_result
- let exports = tcg_rn_exports tc_result
- let doc = tcg_doc tc_result
- hmi = tcg_hmi tc_result
- return (decl,imports,exports,doc,hmi)
- maybeModGuts <-
- if compileToCore then
- deSugar hsc_env (ms_location mod_summary) tc_result
- else
- return Nothing
- return (Just (HscChecked rdr_module
- rnInfo
- (Just (tcg_binds tc_result,
- tcg_rdr_env tc_result,
- md))
- (fmap mg_binds maybeModGuts)))
- }}}}
-
-
hscCmmFile :: DynFlags -> FilePath -> IO Bool
hscCmmFile dflags filename = do
maybe_cmm <- parseCmmFile dflags filename
case maybe_cmm of
Nothing -> return False
Just cmm -> do
- cmm <- testCmmConversion dflags cmm
- --continuationC <- cmmCPS dflags cmm >>= cmmToRawCmm
- continuationC <- cmmToRawCmm [cmm]
- codeOutput dflags no_mod no_loc NoStubs [] continuationC
+ cmms <- optionallyConvertAndOrCPS dflags [cmm]
+ rawCmms <- cmmToRawCmm cmms
+ codeOutput dflags no_mod no_loc NoStubs [] rawCmms
return True
where
no_mod = panic "hscCmmFile: no_mod"
ml_hi_file = panic "hscCmmFile: no hi file",
ml_obj_file = panic "hscCmmFile: no obj file" }
+optionallyConvertAndOrCPS :: DynFlags -> [Cmm] -> IO [Cmm]
+optionallyConvertAndOrCPS dflags cmms =
+ do -------- Optionally convert to and from zipper ------
+ cmms <- if dopt Opt_ConvertToZipCfgAndBack dflags
+ then mapM (testCmmConversion dflags) cmms
+ else return cmms
+ --------- Optionally convert to CPS (MDA) -----------
+ cmms <- if not (dopt Opt_ConvertToZipCfgAndBack dflags) &&
+ dopt Opt_RunCPSZ dflags
+ then cmmCPS dflags cmms
+ else return cmms
+ return cmms
+
+
testCmmConversion :: DynFlags -> Cmm -> IO Cmm
testCmmConversion dflags cmm =
do showPass dflags "CmmToCmm"
= do { let { dflags = hsc_dflags hsc_env ;
lint_on = dopt Opt_DoCoreLinting dflags }
- -- Flatten it
- ; flat_expr <- flattenExpr hsc_env ds_expr
-
-- Simplify it
- ; simpl_expr <- simplifyExpr dflags flat_expr
+ ; simpl_expr <- simplifyExpr dflags ds_expr
-- Tidy it (temporary, until coreSat does cloning)
; let tidy_expr = tidyExpr emptyTidyEnv simpl_expr
projects / ghc-hetmet.git / blobdiff