import HsSyn -- lots of things
import CoreSyn -- lots of things
-import CoreUtils ( coreExprType )
+import CoreUtils ( exprType, mkInlineMe, mkSCC )
import TcHsSyn ( TypecheckedMonoBinds )
import DsMonad
import DsGRHSs ( dsGuarded )
import DsUtils
import Match ( matchWrapper )
-import BasicTypes ( RecFlag(..) )
-import CmdLineOpts ( opt_SccProfilingOn, opt_AutoSccsOnAllToplevs,
- opt_AutoSccsOnExportedToplevs, opt_AutoSccsOnDicts
- )
-import CostCentre ( CostCentre, mkAutoCC, IsCafCC(..) )
-import Id ( idType, idName, isUserExportedId, Id )
+import CmdLineOpts ( opt_AutoSccsOnAllToplevs, opt_AutoSccsOnExportedToplevs )
+import CostCentre ( mkAutoCC, IsCafCC(..) )
+import Id ( idType, idName, isExportedId, isSpecPragmaId, Id )
import NameSet
-import VarEnv
import VarSet
-import Type ( mkTyVarTy, isDictTy )
+import Type ( mkTyVarTy )
import Subst ( mkTyVarSubst, substTy )
import TysWiredIn ( voidTy )
import Outputable
-
-import Maybe
-import IOExts (trace)
+import Maybe ( isJust )
\end{code}
%************************************************************************
-- we only need do this here
addDictScc var core_expr `thenDs` \ core_expr' ->
- returnDs ((var, core_expr') : rest)
+ let
+ -- Gross hack to prevent inlining into SpecPragmaId rhss
+ -- Consider fromIntegral = fromInteger . toInteger
+ -- spec1 = fromIntegral Int Float
+ -- Even though fromIntegral is small we don't want to inline
+ -- it inside spec1, so that we collect the specialised call
+ -- Solution: make spec1 an INLINE thing.
+ core_expr'' = mkInline (isSpecPragmaId var) core_expr'
+ in
+
+ returnDs ((var, core_expr'') : rest)
dsMonoBinds auto_scc (FunMonoBind fun _ matches locn) rest
= putSrcLocDs locn $
- matchWrapper (FunMatch fun) matches error_string `thenDs` \ (args, body) ->
+ matchWrapper (FunRhs fun) matches `thenDs` \ (args, body) ->
addAutoScc auto_scc (fun, mkLams args body) `thenDs` \ pair ->
returnDs (pair : rest)
- where
- error_string = "function " ++ showSDoc (ppr fun)
dsMonoBinds auto_scc (PatMonoBind pat grhss locn) rest
= putSrcLocDs locn $
mapDs (addAutoScc auto_scc) sel_binds `thenDs` \ sel_binds ->
returnDs (sel_binds ++ rest)
- -- Common case: one exported variable
- -- All non-recursive bindings come through this way
-dsMonoBinds auto_scc (AbsBinds all_tyvars dicts exps@[(tyvars, global, local)] inlines binds) rest
+ -- Common special case: no type or dictionary abstraction
+dsMonoBinds auto_scc (AbsBinds [] [] exports inlines binds) rest
+ = dsMonoBinds (addSccs auto_scc exports) binds []`thenDs` \ core_prs ->
+ let
+ exports' = [(global, Var local) | (_, global, local) <- exports]
+ in
+ returnDs (addLocalInlines exports inlines core_prs ++ exports' ++ rest)
+
+ -- Another common case: one exported variable
+ -- Non-recursive bindings come through this way
+dsMonoBinds auto_scc
+ (AbsBinds all_tyvars dicts exps@[(tyvars, global, local)] inlines binds) rest
= ASSERT( all (`elem` tyvars) all_tyvars )
dsMonoBinds (addSccs auto_scc exps) binds [] `thenDs` \ core_prs ->
let
in
returnDs (global' : rest)
- -- Another common special case: no type or dictionary abstraction
-dsMonoBinds auto_scc (AbsBinds [] [] exports inlines binds) rest
- = dsMonoBinds (addSccs auto_scc exports) binds []`thenDs` \ core_prs ->
- let
- exports' = [(global, Var local) | (_, global, local) <- exports]
- in
- returnDs (addLocalInlines exports inlines core_prs ++ exports' ++ rest)
-
dsMonoBinds auto_scc (AbsBinds all_tyvars dicts exports inlines binds) rest
= dsMonoBinds (addSccs auto_scc exports) binds []`thenDs` \ core_prs ->
let
core_binds = [Rec (addLocalInlines exports inlines core_prs)]
tup_expr = mkTupleExpr locals
- tup_ty = coreExprType tup_expr
+ tup_ty = exprType tup_expr
poly_tup_expr = mkLams all_tyvars $ mkLams dicts $
mkDsLets core_binds tup_expr
locals = [local | (_, _, local) <- exports]
local_tys = map idType locals
in
- newSysLocalDs (coreExprType poly_tup_expr) `thenDs` \ poly_tup_id ->
+ newSysLocalDs (exprType poly_tup_expr) `thenDs` \ poly_tup_id ->
let
dict_args = map Var dicts
\begin{code}
mkInline :: Bool -> CoreExpr -> CoreExpr
-mkInline True body = Note InlineMe body
+mkInline True body = mkInlineMe body
mkInline False body = body
addLocalInlines :: [(a, Id, Id)] -> NameSet -> [(Id,CoreExpr)] -> [(Id,CoreExpr)]
addSccs TopLevel exports
= TopLevelAddSccs (\id -> case [ exp | (_,exp,loc) <- exports, loc == id ] of
(exp:_) | opt_AutoSccsOnAllToplevs ||
- (isUserExportedId exp &&
+ (isExportedId exp &&
opt_AutoSccsOnExportedToplevs)
-> Just exp
_ -> Nothing)
-> DsM (Id, CoreExpr)
addAutoScc (TopLevelAddSccs auto_scc_fn) pair@(bndr, core_expr)
- | do_auto_scc && worthSCC core_expr
- = getModuleAndGroupDs `thenDs` \ (mod,grp) ->
- returnDs (bndr, Note (SCC (mkAutoCC top_bndr mod grp NotCafCC)) core_expr)
+ | do_auto_scc
+ = getModuleDs `thenDs` \ mod ->
+ returnDs (bndr, mkSCC (mkAutoCC top_bndr mod NotCafCC) core_expr)
where do_auto_scc = isJust maybe_auto_scc
maybe_auto_scc = auto_scc_fn bndr
(Just top_bndr) = maybe_auto_scc
+
addAutoScc _ pair
= returnDs pair
-
-worthSCC (Note (SCC _) _) = False
-worthSCC (Con _ _) = False
-worthSCC core_expr = True
\end{code}
-If profiling and dealing with a dict binding, wrap the dict in "_scc_ DICT <dict>":
+If profiling and dealing with a dict binding,
+wrap the dict in @_scc_ DICT <dict>@:
\begin{code}
addDictScc var rhs = returnDs rhs