[project @ 2004-08-13 10:45:16 by simonmar]

[ghc-hetmet.git] / ghc / compiler / codeGen / CgConTbls.lhs

diff --git a/ghc/compiler/codeGen/CgConTbls.lhs b/ghc/compiler/codeGen/CgConTbls.lhs
index 5b862fd..37ced1e 100644 (file)
--- a/ghc/compiler/codeGen/CgConTbls.lhs
+++ b/ghc/compiler/codeGen/CgConTbls.lhs
@@ -9,23 +9,15 @@ module CgConTbls ( genStaticConBits ) where
 #include "HsVersions.h"
 
 import AbsCSyn
-import StgSyn
 import CgMonad
 
 import AbsCUtils       ( mkAbstractCs, mkAbsCStmts )
-import CostCentre      ( noCCS )
-import CgCon           ( cgTopRhsCon )
-import CgClosure       ( cgTopRhsClosure )
 import CgTailCall      ( performReturn, mkStaticAlgReturnCode )
-import ClosureInfo     ( layOutStaticConstr, layOutDynConstr, mkClosureLFInfo, ClosureInfo )
-import DataCon         ( DataCon, dataConName, dataConRepArgTys, dataConId, isNullaryDataCon )
-import Id              ( mkTemplateLocals )
-import Name            ( getOccName )
-import OccName         ( occNameUserString )
+import ClosureInfo     ( layOutStaticConstr, layOutDynConstr, ClosureInfo )
+import DataCon         ( DataCon, dataConRepArgTys, isNullaryDataCon )
 import TyCon           ( tyConDataCons, isEnumerationTyCon, TyCon )
 import Type            ( typePrimRep )
-import BasicTypes      ( TopLevelFlag(..) )
-import Outputable
+import CmdLineOpts
 \end{code}
 
 For every constructor we generate the following info tables:
@@ -112,32 +104,34 @@ genConInfo :: CompilationInfo -> DataCon -> AbstractC
 
 genConInfo comp_info data_con
   =    -- Order of things is to reduce forward references
-    mkAbstractCs [CSplitMarker,
+    mkAbstractCs [if opt_EnsureSplittableC then CSplitMarker else AbsCNop,
                  closure_code,
-                 static_code,
-                 wrkr_code]
+                 static_code]
   where
     (closure_info, body_code) = mkConCodeAndInfo data_con
 
     -- To allow the debuggers, interpreters, etc to cope with static
     -- data structures (ie those built at compile time), we take care that
     -- info-table contains the information we need.
-    (static_ci,_) = layOutStaticConstr con_name data_con typePrimRep arg_tys
+    (static_ci,_) = layOutStaticConstr data_con typePrimRep arg_tys
 
-    body       = initC comp_info (
-                     profCtrC SLIT("TICK_ENT_CON") [CReg node] `thenC`
-                     body_code)
+    static_body  = initC comp_info (
+                      profCtrC FSLIT("TICK_ENT_STATIC_CON") [CReg node] `thenC`
+                      ldv_enter_and_body_code)
 
-    wrkr_code  = initC comp_info (cgWorker data_con `thenFC` \ _ -> returnFC ())
-    con_descr  = occNameUserString (getOccName data_con)
+    closure_body = initC comp_info (
+                      profCtrC FSLIT("TICK_ENT_DYN_CON") [CReg node] `thenC`
+                      ldv_enter_and_body_code)
+
+    ldv_enter_and_body_code = ldvEnter `thenC` body_code
 
     -- Don't need any dynamic closure code for zero-arity constructors
     closure_code = if zero_arity_con then 
                        AbsCNop 
                   else 
-                       CClosureInfoAndCode closure_info body Nothing con_descr
+                       CClosureInfoAndCode closure_info closure_body
 
-    static_code  = CClosureInfoAndCode static_ci body Nothing con_descr
+    static_code  = CClosureInfoAndCode static_ci static_body
 
     zero_arity_con   = isNullaryDataCon data_con
        -- We used to check that all the arg-sizes were zero, but we don't
@@ -145,7 +139,6 @@ genConInfo comp_info data_con
        -- just one more thing to go wrong.
 
     arg_tys        = dataConRepArgTys  data_con
-    con_name       = dataConName data_con
 \end{code}
 
 \begin{code}
@@ -156,12 +149,11 @@ mkConCodeAndInfo con
   = let
        arg_tys = dataConRepArgTys con
 
-       (closure_info, arg_things)
-               = layOutDynConstr (dataConName con) con typePrimRep arg_tys
+       (closure_info, arg_things) = layOutDynConstr con typePrimRep arg_tys
 
        body_code
                = -- NB: We don't set CC when entering data (WDP 94/06)
-                 profCtrC SLIT("TICK_RET_OLD") 
+                 profCtrC FSLIT("TICK_RET_OLD") 
                        [mkIntCLit (length arg_things)] `thenC`
 
                  performReturn AbsCNop         -- Ptr to thing already in Node
@@ -169,27 +161,3 @@ mkConCodeAndInfo con
        in
        (closure_info, body_code)
 \end{code}
-
-For a constructor C, make a binding
-
-       $wC = \x y -> $wC x y
-
-i.e. a curried constructor that allocates.  This means that we can treat
-the worker for a constructor like any other function in the rest of the compiler.
-
-\begin{code}
-cgWorker data_con
-  | isNullaryDataCon data_con
-  = cgTopRhsCon work_id data_con []
-
-  | otherwise
-  = cgTopRhsClosure work_id
-           noCCS noBinderInfo NoSRT
-           arg_ids rhs
-           lf_info
-  where
-    work_id = dataConId data_con
-    arg_ids = mkTemplateLocals (dataConRepArgTys data_con)
-    rhs     = StgConApp data_con [StgVarArg id | id <- arg_ids]
-    lf_info = mkClosureLFInfo work_id TopLevel [{-no fvs-}] ReEntrant arg_ids
-\end{code}