\section[SimplCore]{Driver for simplifying @Core@ programs}
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
module SimplCore ( core2core, simplifyExpr ) where
#include "HsVersions.h"
import HscTypes
import CSE ( cseProgram )
import Rules ( RuleBase, emptyRuleBase, mkRuleBase, unionRuleBase,
- extendRuleBaseList, pprRuleBase, pprRulesForUser,
- ruleCheckProgram, rulesOfBinds,
- addSpecInfo, addIdSpecialisations )
-import PprCore ( pprCoreBindings, pprCoreExpr, pprRules )
+ extendRuleBaseList, ruleCheckProgram, addSpecInfo, )
+import PprCore ( pprCoreBindings, pprCoreExpr )
import OccurAnal ( occurAnalysePgm, occurAnalyseExpr )
import IdInfo
import CoreUtils ( coreBindsSize )
import Simplify ( simplTopBinds, simplExpr )
-import SimplUtils ( simplEnvForGHCi, simplEnvForRules )
+import SimplUtils ( simplEnvForGHCi, activeRule )
import SimplEnv
import SimplMonad
import CoreMonad
import qualified ErrUtils as Err
-import CoreLint
import FloatIn ( floatInwards )
import FloatOut ( floatOutwards )
import FamInstEnv
import Id
-import DataCon
-import TyCon ( tyConDataCons )
-import BasicTypes ( CompilerPhase, isActive, isDefaultInlinePragma )
+import BasicTypes ( CompilerPhase, isDefaultInlinePragma )
import VarSet
import VarEnv
-import NameEnv ( lookupNameEnv )
import LiberateCase ( liberateCase )
import SAT ( doStaticArgs )
import Specialise ( specProgram)
import UniqSupply ( UniqSupply, mkSplitUniqSupply, splitUniqSupply )
import Outputable
import Control.Monad
-import Data.List
-import System.IO
-import Maybes
\end{code}
%************************************************************************
doPassU wwTopBinds
doCorePass CoreDoSpecialising = {-# SCC "Specialise" #-}
- doPassU specProgram
+ specProgram
doCorePass CoreDoSpecConstr = {-# SCC "SpecConstr" #-}
specConstrProgram
-doCorePass (CoreDoVectorisation be) = {-# SCC "Vectorise" #-}
- vectorise be
+doCorePass CoreDoVectorisation = {-# SCC "Vectorise" #-}
+ vectorise
doCorePass CoreDoGlomBinds = doPassDM glomBinds
doCorePass CoreDoPrintCore = observe printCore
doCorePass (CoreDoRuleCheck phase pat) = ruleCheck phase pat
doCorePass CoreDoNothing = return
doCorePass (CoreDoPasses passes) = doCorePasses passes
+doCorePass pass = pprPanic "doCorePass" (ppr pass)
\end{code}
%************************************************************************
%************************************************************************
\begin{code}
+printCore :: a -> [CoreBind] -> IO ()
printCore _ binds = Err.dumpIfSet True "Print Core" (pprCoreBindings binds)
ruleCheck :: CompilerPhase -> String -> ModGuts -> CoreM ModGuts
return guts
-doPassDMS :: (DynFlags -> [CoreBind] -> IO (SimplCount, [CoreBind])) -> ModGuts -> CoreM ModGuts
-doPassDMS do_pass = doPassM $ \binds -> do
- dflags <- getDynFlags
- liftIOWithCount $ do_pass dflags binds
-
doPassDUM :: (DynFlags -> UniqSupply -> [CoreBind] -> IO [CoreBind]) -> ModGuts -> CoreM ModGuts
doPassDUM do_pass = doPassM $ \binds -> do
dflags <- getDynFlags
binds' <- bind_f (mg_binds guts)
return (guts { mg_binds = binds' })
-doPassMG :: Monad m => (ModGuts -> m [CoreBind]) -> ModGuts -> m ModGuts
-doPassMG bind_f guts = do
- binds' <- bind_f guts
- return (guts { mg_binds = binds' })
-
doPass :: ([CoreBind] -> [CoreBind]) -> ModGuts -> CoreM ModGuts
doPass bind_f guts = return $ guts { mg_binds = bind_f (mg_binds guts) }
observe :: (DynFlags -> [CoreBind] -> IO a) -> ModGuts -> CoreM ModGuts
observe do_pass = doPassM $ \binds -> do
dflags <- getDynFlags
- liftIO $ do_pass dflags binds
+ _ <- liftIO $ do_pass dflags binds
return binds
\end{code}
-> ModGuts
-> IO (SimplCount, ModGuts) -- New bindings
-simplifyPgmIO pass@(CoreDoSimplify mode max_iterations switches)
+simplifyPgmIO pass@(CoreDoSimplify max_iterations mode)
hsc_env us hpt_rule_base
guts@(ModGuts { mg_binds = binds, mg_rules = rules
, mg_fam_inst_env = fam_inst_env })
; return (counts_out, guts')
}
where
- dflags = hsc_dflags hsc_env
- dump_phase = dumpSimplPhase dflags mode
- sw_chkr = isAmongSimpl switches
+ dflags = hsc_dflags hsc_env
+ dump_phase = dumpSimplPhase dflags mode
+ simpl_env = mkSimplEnv mode
+ active_rule = activeRule dflags simpl_env
+
do_iteration :: UniqSupply
-> Int -- Counts iterations
-> [SimplCount] -- Counts from earlier iterations, reversed
| let sz = coreBindsSize binds in sz == sz
= do {
-- Occurrence analysis
- let { tagged_binds = {-# SCC "OccAnal" #-} occurAnalysePgm binds rules } ;
+ let { tagged_binds = {-# SCC "OccAnal" #-}
+ occurAnalysePgm active_rule rules binds } ;
Err.dumpIfSet_dyn dflags Opt_D_dump_occur_anal "Occurrence analysis"
(pprCoreBindings tagged_binds);
eps <- hscEPS hsc_env ;
let { rule_base1 = unionRuleBase hpt_rule_base (eps_rule_base eps)
; rule_base2 = extendRuleBaseList rule_base1 rules
- ; simpl_env = mkSimplEnv sw_chkr mode
; simpl_binds = {-# SCC "SimplTopBinds" #-}
simplTopBinds simpl_env tagged_binds
; fam_envs = (eps_fam_inst_env eps, fam_inst_env) } ;
-- Loop
do_iteration us2 (iteration_no + 1) (counts1:counts_so_far) binds2 rules1
- } } } }
+ } } } }
+ | otherwise = panic "do_iteration"
where
(us1, us2) = splitUniqSupply us
totalise = foldr (\c acc -> acc `plusSimplCount` c)
(zeroSimplCount dflags)
+simplifyPgmIO _ _ _ _ _ = panic "simplifyPgmIO"
+
-------------------
end_iteration :: DynFlags -> CoreToDo -> Int
-> SimplCount -> [CoreBind] -> [CoreRule] -> IO ()
add_pair :: (Id,CoreExpr) -> IndEnv -> IndEnv
add_pair (exported_id, Var local_id) env
| shortMeOut env exported_id local_id = extendVarEnv env local_id exported_id
- add_pair (exported_id, rhs) env
- = env
+ add_pair _ env = env
-----------------
+shortMeOut :: IndEnv -> Id -> Id -> Bool
shortMeOut ind_env exported_id local_id
-- The if-then-else stuff is just so I can get a pprTrace to see
-- how often I don't get shorting out becuase of IdInfo stuff
projects / ghc-hetmet.git / blobdiff