X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FStgCmmPrim.hs;h=9cabcb12e74d5ab376b21bf9e544bbbe4014174e;hb=7854ec4b11e117f8514553890851d14a66690fbb;hp=96467fe7815c827e37cf3242aecac7ca41c7847f;hpb=176fa33f17dd78355cc572e006d2ab26898e2c69;p=ghc-hetmet.git

diff --git a/compiler/codeGen/StgCmmPrim.hs b/compiler/codeGen/StgCmmPrim.hs
index 96467fe..9cabcb1 100644
--- a/compiler/codeGen/StgCmmPrim.hs
+++ b/compiler/codeGen/StgCmmPrim.hs
@@ -28,6 +28,7 @@ import CmmUtils
 import PrimOp
 import SMRep
 import Constants
+import Module
 import FastString
 import Outputable
 
@@ -66,7 +67,9 @@ cgOpApp (StgFCallOp fcall _) stg_args res_ty
 
 cgOpApp (StgPrimOp TagToEnumOp) [arg] res_ty 
   = ASSERT(isEnumerationTyCon tycon)
-    do	{ amode <- getArgAmode arg
+    do	{ args' <- getNonVoidArgAmodes [arg]
+        ; let amode = case args' of [amode] -> amode
+                                    _ -> panic "TagToEnumOp had void arg"
 	; emitReturn [tagToClosure tycon amode] }
    where
 	  -- If you're reading this code in the attempt to figure
@@ -79,8 +82,8 @@ cgOpApp (StgPrimOp TagToEnumOp) [arg] res_ty
 cgOpApp (StgPrimOp primop) args res_ty
   | primOpOutOfLine primop
   = do	{ cmm_args <- getNonVoidArgAmodes args
-	; let fun = CmmLit (CmmLabel (mkRtsPrimOpLabel primop))
-	; emitCall fun cmm_args }
+        ; let fun = CmmLit (CmmLabel (mkRtsPrimOpLabel primop))
+        ; emitCall (PrimOpCall, PrimOpReturn) fun cmm_args }
 
   | ReturnsPrim VoidRep <- result_info
   = do cgPrimOp [] primop args 
@@ -108,6 +111,11 @@ cgOpApp (StgPrimOp primop) args res_ty
   where
      result_info = getPrimOpResultInfo primop
 
+cgOpApp (StgPrimCallOp primcall) args _res_ty
+  = do	{ cmm_args <- getNonVoidArgAmodes args
+        ; let fun = CmmLit (CmmLabel (mkPrimCallLabel primcall))
+        ; emitCall (PrimOpCall, PrimOpReturn) fun cmm_args }
+
 ---------------------------------------------------
 cgPrimOp   :: [LocalReg]	-- where to put the results
 	   -> PrimOp		-- the op
@@ -194,7 +202,7 @@ emitPrimOp [res] ParOp [arg]
 	-- later, we might want to inline it.
     emitCCall
 	[(res,NoHint)]
-    	(CmmLit (CmmLabel (mkRtsCodeLabel (sLit "newSpark"))))
+    	(CmmLit (CmmLabel (mkCmmCodeLabel rtsPackageId (fsLit "newSpark"))))
 	[(CmmReg (CmmGlobal BaseReg), AddrHint), (arg,AddrHint)] 
 
 emitPrimOp [res] ReadMutVarOp [mutv]
@@ -224,8 +232,8 @@ emitPrimOp [res] SizeofMutableByteArrayOp [arg]
 
 
 --  #define touchzh(o)                  /* nothing */
-emitPrimOp [] TouchOp [_arg]
-   = nopC
+emitPrimOp res@[] TouchOp args@[_arg]
+   = do emitPrimCall res MO_Touch args
 
 --  #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
 emitPrimOp [res] ByteArrayContents_Char [arg]
@@ -405,9 +413,9 @@ emitPrimOp [res] op [arg]
    = emit (mkAssign (CmmLocal res) $
 	   CmmMachOp (mop rep wordWidth) [CmmMachOp (mop wordWidth rep) [arg]])
 
-emitPrimOp [res] op args
+emitPrimOp r@[res] op args
    | Just prim <- callishOp op
-   = do emitPrimCall res prim args
+   = do emitPrimCall r prim args
 
    | Just mop <- translateOp op
    = let stmt = mkAssign (CmmLocal res) (CmmMachOp mop args) in
@@ -628,8 +636,21 @@ doWriteByteArrayOp _ _ _
 
 doWritePtrArrayOp :: CmmExpr -> CmmExpr -> CmmExpr -> FCode ()
 doWritePtrArrayOp addr idx val
-   = do emit (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
-        mkBasicIndexedWrite arrPtrsHdrSize Nothing addr idx val
+  = do mkBasicIndexedWrite arrPtrsHdrSize Nothing addr idx val
+       emit (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
+  -- the write barrier.  We must write a byte into the mark table:
+  -- bits8[a + header_size + StgMutArrPtrs_size(a) + x >> N]
+       emit $ mkStore (
+         cmmOffsetExpr
+          (cmmOffsetExprW (cmmOffsetB addr arrPtrsHdrSize)
+                         (loadArrPtrsSize addr))
+          (CmmMachOp mo_wordUShr [idx,
+                                  CmmLit (mkIntCLit mUT_ARR_PTRS_CARD_BITS)])
+         ) (CmmLit (CmmInt 1 W8))
+       
+loadArrPtrsSize :: CmmExpr -> CmmExpr
+loadArrPtrsSize addr = CmmLoad (cmmOffsetB addr off) bWord
+ where off = fixedHdrSize*wORD_SIZE + oFFSET_StgMutArrPtrs_ptrs
 
 mkBasicIndexedRead :: ByteOff -> Maybe MachOp -> CmmType
 		   -> LocalReg -> CmmExpr -> CmmExpr -> FCode ()