X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgPrimOp.hs;h=5ea50236de407630dfc20b631ff43c01d5411a07;hb=663b391470a783e8f23414c07c18a020850d2fb8;hp=d26d9c690136ec5325a4d85a0c428a8d1f14f9cc;hpb=33918805ffc2e2a6fc9ff74ae4ce55052151ba90;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgPrimOp.hs b/compiler/codeGen/CgPrimOp.hs
index d26d9c6..5ea5023 100644
--- a/compiler/codeGen/CgPrimOp.hs
+++ b/compiler/codeGen/CgPrimOp.hs
@@ -117,10 +117,11 @@ emitPrimOp [res] ParOp [arg] live
     vols <- getVolatileRegs live
     emitForeignCall' PlayRisky
 	[(res,NoHint)]
-    	(CmmForeignCall newspark CCallConv) 
+    	(CmmCallee newspark CCallConv) 
 	[(CmmReg (CmmGlobal BaseReg), PtrHint), (arg,PtrHint)] 
 	(Just vols)
         NoC_SRT -- No SRT b/c we do PlayRisky
+        CmmMayReturn
   where
 	newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
 
@@ -133,11 +134,12 @@ emitPrimOp [] WriteMutVarOp [mutv,var] live
 	vols <- getVolatileRegs live
 	emitForeignCall' PlayRisky
 		[{-no results-}]
-		(CmmForeignCall (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
+		(CmmCallee (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
 			 CCallConv)
 		[(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
 		(Just vols)
                 NoC_SRT -- No SRT b/c we do PlayRisky
+                CmmMayReturn
 
 --  #define sizzeofByteArrayzh(r,a) \
 --     r = (((StgArrWords *)(a))->words * sizeof(W_))
@@ -183,8 +185,9 @@ emitPrimOp [res] AddrToHValueOp [arg] live
    = stmtC (CmmAssign (CmmLocal res) arg)
 
 --  #define dataToTagzh(r,a)  r=(GET_TAG(((StgClosure *)a)->header.info))
+--  Note: argument may be tagged!
 emitPrimOp [res] DataToTagOp [arg] live
-   = stmtC (CmmAssign (CmmLocal res) (getConstrTag arg))
+   = stmtC (CmmAssign (CmmLocal res) (getConstrTag (cmmUntag arg)))
 
 {- Freezing arrays-of-ptrs requires changing an info table, for the
    benefit of the generational collector.  It needs to scavenge mutable
@@ -343,6 +346,7 @@ emitPrimOp [res] op args live
 	   [(a,NoHint) | a<-args]  -- ToDo: hints?
 	   (Just vols)
            NoC_SRT -- No SRT b/c we do PlayRisky
+           CmmMayReturn
 
    | Just mop <- translateOp op
    = let stmt = CmmAssign (CmmLocal res) (CmmMachOp mop args) in