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}
module SCCfinal ( stgMassageForProfiling ) where
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])
| 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,
= 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