[project @ 2005-05-18 04:02:39 by wolfgang]

Use constructor functions instead of stginit functions on Win32, too.
(stginit functions are still used for profiling)

2 files changed, 16 insertions, 29 deletions

diff --git a/ghc/compiler/codeGen/CgClosure.lhs b/ghc/compiler/codeGen/CgClosure.lhs
index 7ec8f484a6..8a0f4dd449 100644
--- a/ghc/compiler/codeGen/CgClosure.lhs
+++ b/ghc/compiler/codeGen/CgClosure.lhs
@@ -1,7 +1,7 @@
 %
 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
 %
-% $Id: CgClosure.lhs,v 1.70 2005/05/17 13:47:39 simonmar Exp $
+% $Id: CgClosure.lhs,v 1.71 2005/05/18 04:02:39 wolfgang Exp $
 %
 \section[CgClosure]{Code generation for closures}
 
@@ -39,7 +39,7 @@ import SMRep		( CgRep, cgRepSizeW, argMachRep, fixedHdrSize, WordOff,
 import MachOp		( MachHint(..) )
 import Cmm
 import CmmUtils		( CmmStmts, mkStmts, oneStmt, plusStmts, noStmts,
-			  mkLblExpr )
+			  mkLblExpr, mkIntCLit )
 import CLabel
 import StgSyn
 import StaticFlags	( opt_DoTickyProfiling )
@@ -84,8 +84,16 @@ cgTopRhsClosure id ccs binder_info srt upd_flag args body = do
 	closure_info  = mkClosureInfo True id lf_info 0 0 srt_info descr
 	closure_label = mkLocalClosureLabel name
     	cg_id_info    = stableIdInfo id (mkLblExpr closure_label) lf_info
-	closure_rep   = mkStaticClosureFields closure_info ccs True []
-
+	closure_rep | not is_caf  = mkStaticClosureFields closure_info ccs True []
+                    | otherwise   = mkStaticClosure (mkRtsInfoLabel SLIT("stg_caf")) ccs
+                                     [CmmLabel (infoTableLabelFromCI closure_info)]
+                                     [mkIntCLit 0, mkIntCLit 0]
+                                     [] []
+                                     
+        is_caf = null args
+              && not (closureReEntrant closure_info)
+              && isStaticClosure closure_info 
+                                     
   	 -- BUILD THE OBJECT, AND GENERATE INFO TABLE (IF NECESSARY)
   ; emitDataLits closure_label closure_rep
   ; forkClosureBody (closureCodeBody binder_info closure_info
@@ -480,8 +488,9 @@ setupUpdate closure_info code
 
 	; if closureUpdReqd closure_info
 	  then do	-- Blackhole the (updatable) CAF:
-		{ upd_closure <- link_caf closure_info True
-	 	; pushUpdateFrame upd_closure code }
+		code
+                -- { upd_closure <- link_caf closure_info True
+	 	-- ; pushUpdateFrame upd_closure code }
 	  else do
 		{ 	-- No update reqd, you'd think we don't need to 
 			-- black-hole it. But when ticky-ticky is on, we 
diff --git a/ghc/compiler/codeGen/CodeGen.lhs b/ghc/compiler/codeGen/CodeGen.lhs
index 16cf251fe8..1aa48656f5 100644
--- a/ghc/compiler/codeGen/CodeGen.lhs
+++ b/ghc/compiler/codeGen/CodeGen.lhs
@@ -150,7 +150,7 @@ mkModuleInit
 	-> Code
 mkModuleInit dflags way cost_centre_info this_mod mb_main_mod foreign_stubs imported_mods
   = do	{ 	
-        if need_init_code
+        if opt_SccProfilingOn
             then do { -- Allocate the static boolean that records if this
                       -- module has been registered already
 	              emitData Data [CmmDataLabel moduleRegdLabel, 
@@ -204,10 +204,6 @@ mkModuleInit dflags way cost_centre_info this_mod mb_main_mod foreign_stubs impo
 	  stmtC (CmmStore (mkLblExpr moduleRegdLabel) (CmmLit (mkIntCLit 1)))
 
 		-- Now do local stuff
-#if defined(mingw32_HOST_OS)
-        -- ... until the GHCi Linker can load files with constructor functions:
-        ; registerForeignExports foreign_stubs
-#endif
 	; initCostCentres cost_centre_info
 	; mapCs (registerModuleImport dflags way) 
 		(imported_mods++extra_imported_mods)
@@ -218,12 +214,6 @@ mkModuleInit dflags way cost_centre_info this_mod mb_main_mod foreign_stubs impo
     ret_code = stmtsC [ CmmAssign spReg (cmmRegOffW spReg 1)
                       , CmmJump (CmmLoad (cmmRegOffW spReg (-1)) wordRep) [] ]
 
-#if defined(mingw32_HOST_OS)
-    need_init_code = True
-#else
-    need_init_code = opt_SccProfilingOn
-#endif
-
 -----------------------
 registerModuleImport :: DynFlags -> String -> Module -> Code
 registerModuleImport dflags way mod 
@@ -232,18 +222,6 @@ registerModuleImport dflags way mod
   | otherwise 	-- Push the init procedure onto the work stack
   = stmtsC [ CmmAssign spReg (cmmRegOffW spReg (-1))
 	   , CmmStore (CmmReg spReg) (mkLblExpr (mkModuleInitLabel dflags mod way)) ]
-
------------------------
-registerForeignExports :: ForeignStubs -> Code
-registerForeignExports NoStubs 
-  = nopC
-registerForeignExports (ForeignStubs _ _ _ fe_bndrs)
-  = mapM_ mk_export_register fe_bndrs
-  where
-	mk_export_register bndr
-	  = emitRtsCall SLIT("getStablePtr") 
-		[ (CmmLit (CmmLabel (mkLocalClosureLabel (idName bndr))), 
-		   PtrHint) ]
 \end{code}