This is now a sort-of-normal STG-to-STG pass (WDP 94/06), run by stg2stg.
-* Traverses the STG program collecting the cost centres. These are
- required to declare the cost centres at the start of code
- generation.
+ - Traverses the STG program collecting the cost centres. These are required
+ to declare the cost centres at the start of code generation.
- Note: because of cross-module unfolding, some of these cost centres
- may be from other modules. But will still have to give them
- "extern" declarations.
+ Note: because of cross-module unfolding, some of these cost centres may be
+ from other modules. But will still have to give them "extern"
+ declarations.
-* Puts on CAF cost-centres if the user has asked for individual CAF
- cost-centres.
+ - Puts on CAF cost-centres if the user has asked for individual CAF
+ cost-centres.
-* Ditto for individual DICT cost-centres.
+ - Ditto for individual DICT cost-centres.
-* Boxes top-level inherited functions passed as arguments.
+ - Boxes top-level inherited functions passed as arguments.
-* "Distributes" given cost-centres to all as-yet-unmarked RHSs.
+ - "Distributes" given cost-centres to all as-yet-unmarked RHSs.
\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 SCCfinal ( stgMassageForProfiling ) where
#include "HsVersions.h"
import StgSyn
-import StaticFlags ( opt_AutoSccsOnIndividualCafs )
import CostCentre -- lots of things
import Id
import Name
import VarSet
import ListSetOps ( removeDups )
import Outputable
+import DynFlags
\end{code}
\begin{code}
stgMassageForProfiling
- :: PackageId
+ :: DynFlags
+ -> PackageId
-> Module -- module name
-> UniqSupply -- unique supply
-> [StgBinding] -- input
-> (CollectedCCs, [StgBinding])
-stgMassageForProfiling this_pkg mod_name us stg_binds
+stgMassageForProfiling dflags this_pkg mod_name us stg_binds
= let
((local_ccs, extern_ccs, cc_stacks),
stg_binds2)
= initMM mod_name us (do_top_bindings stg_binds)
(fixed_ccs, fixed_cc_stacks)
- = if opt_AutoSccsOnIndividualCafs
+ = if dopt Opt_AutoSccsOnIndividualCafs dflags
then ([],[]) -- don't need "all CAFs" CC
-- (for Prelude, we use PreludeCC)
else ([all_cafs_cc], [all_cafs_ccs])
----------
do_top_rhs :: Id -> StgRhs -> MassageM StgRhs
- do_top_rhs binder (StgRhsClosure _ bi fv u srt [] (StgSCC cc (StgConApp con args)))
+ do_top_rhs _ (StgRhsClosure _ _ _ _ _ [] (StgSCC cc (StgConApp con args)))
| not (isSccCountCostCentre cc) && not (isDllConApp this_pkg con args)
-- Trivial _scc_ around nothing but static data
-- Eliminate _scc_ ... and turn into StgRhsCon
| noCCSAttached no_cc || currentOrSubsumedCCS no_cc = do
-- Top level CAF without a cost centre attached
-- Attach CAF cc (collect if individual CAF ccs)
- caf_ccs <- if opt_AutoSccsOnIndividualCafs
+ caf_ccs <- if dopt Opt_AutoSccsOnIndividualCafs dflags
then let cc = mkAutoCC binder modl CafCC
ccs = mkSingletonCCS cc
-- careful: the binder might be :Main.main,
body' <- set_prevailing_cc caf_ccs (do_expr body)
return (StgRhsClosure caf_ccs bi fv u srt [] body')
- do_top_rhs binder (StgRhsClosure cc bi fv u srt [] body)
+ do_top_rhs _ (StgRhsClosure cc _ _ _ _ [] _)
-- Top level CAF with cost centre attached
-- Should this be a CAF cc ??? Does this ever occur ???
= pprPanic "SCCfinal: CAF with cc:" (ppr cc)
- do_top_rhs binder (StgRhsClosure no_ccs bi fv u srt args body)
+ do_top_rhs _ (StgRhsClosure no_ccs bi fv u srt args body)
-- Top level function, probably subsumed
| noCCSAttached no_ccs
= do body' <- set_lambda_cc (do_expr body)
| otherwise
= pprPanic "SCCfinal: CAF with cc:" (ppr no_ccs)
- do_top_rhs binder (StgRhsCon ccs con args)
+ do_top_rhs _ (StgRhsCon _ con args)
-- Top-level (static) data is not counted in heap
-- profiles; nor do we set CCCS from it; so we
-- just slam in dontCareCostCentre
expr' <- do_expr expr
return (StgTick m n expr')
-#ifdef DEBUG
do_expr other = pprPanic "SCCfinal.do_expr" (ppr other)
-#endif
----------------------------------
slurpSCCs ccs e
= return (e, ccs)
- do_rhs (StgRhsCon cc con args)
+ do_rhs (StgRhsCon _ con args)
= return (StgRhsCon currentCCS con args)
\end{code}
= do -- make a trivial let-binding for the top-level function
uniq <- getUniqueMM
let
- new_var = mkSysLocal FSLIT("sf") uniq var_type
+ new_var = mkSysLocal (fsLit "sf") uniq var_type
return ( (new_var, old_var) : bindings, StgVarArg new_var )
where
var_type = idType old_var
addTopLevelIshIds (id:ids) cont
= addTopLevelIshId id (addTopLevelIshIds ids cont)
+#ifdef PROF_DO_BOXING
getTopLevelIshIds :: MassageM VarSet
-getTopLevelIshIds = MassageM $ \mod scope_cc us ids ccs -> (ccs, ids)
+getTopLevelIshIds = MassageM $ \_mod _scope_cc _us ids ccs -> (ccs, ids)
+#endif
\end{code}
The prevailing CCS is used to tell whether we're in a top-levelish
\begin{code}
set_lambda_cc :: MassageM a -> MassageM a
set_lambda_cc action
- = MassageM $ \mod scope_cc us ids ccs
+ = MassageM $ \mod _scope_cc us ids ccs
-> unMassageM action mod currentCCS us ids ccs
set_prevailing_cc :: CostCentreStack -> MassageM a -> MassageM a
set_prevailing_cc cc_to_set_to action
- = MassageM $ \mod scope_cc us ids ccs
+ = MassageM $ \mod _scope_cc us ids ccs
-> unMassageM action mod cc_to_set_to us ids ccs
-
-get_prevailing_cc :: MassageM CostCentreStack
-get_prevailing_cc = MassageM $ \mod scope_cc us ids ccs -> (ccs, scope_cc)
\end{code}
\begin{code}
collectCC :: CostCentre -> MassageM ()
-collectCC cc = MassageM $ \mod_name scope_cc us ids (local_ccs, extern_ccs, ccss)
+collectCC cc
+ = MassageM $ \mod_name _scope_cc _us _ids (local_ccs, extern_ccs, ccss)
-> ASSERT(not (noCCAttached cc))
if (cc `ccFromThisModule` mod_name) then
((cc : local_ccs, extern_ccs, ccss), ())
-- module name (eg. the special :Main module) see bug #249, #1472,
-- test prof001,prof002.
collectNewCC :: CostCentre -> MassageM ()
-collectNewCC cc = MassageM $ \mod_name scope_cc us ids (local_ccs, extern_ccs, ccss)
- -> ((cc : local_ccs, extern_ccs, ccss), ())
+collectNewCC cc
+ = MassageM $ \_mod_name _scope_cc _us _ids (local_ccs, extern_ccs, ccss)
+ -> ((cc : local_ccs, extern_ccs, ccss), ())
collectCCS :: CostCentreStack -> MassageM ()
-collectCCS ccs = MassageM $ \mod_name scope_cc us ids (local_ccs, extern_ccs, ccss)
- -> ASSERT(not (noCCSAttached ccs))
- ((local_ccs, extern_ccs, ccs : ccss), ())
+collectCCS ccs
+ = MassageM $ \_mod_name _scope_cc _us _ids (local_ccs, extern_ccs, ccss)
+ -> ASSERT(not (noCCSAttached ccs))
+ ((local_ccs, extern_ccs, ccs : ccss), ())
\end{code}
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