X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgStackery.lhs;h=4196997f7a7a4fdcf330d16ce5efe35388619fa6;hb=e4417dcd4679da9c6b18c02ff667199c572bed89;hp=7b1d98605ea2621b8f8e0ebb8258996557a0e923;hpb=7fc749a43b4b6b85d234fa95d4928648259584f4;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgStackery.lhs b/compiler/codeGen/CgStackery.lhs
index 7b1d986..4196997 100644
--- a/compiler/codeGen/CgStackery.lhs
+++ b/compiler/codeGen/CgStackery.lhs
@@ -41,6 +41,8 @@ import Util
 import FastString
 import OrdList
 import Outputable
+
+import Control.Monad
 \end{code}
 
 %************************************************************************
@@ -275,12 +277,10 @@ pushUpdateFrame :: CmmExpr -> Code -> Code
 
 pushUpdateFrame updatee code
   = do	{
-#ifdef DEBUG
-	  EndOfBlockInfo _ sequel <- getEndOfBlockInfo ;
-	  ASSERT(case sequel of { OnStack -> True; _ -> False})
-#endif
-
-	  allocStackTop (fixedHdrSize + 
+      when debugIsOn $ do
+    	{ EndOfBlockInfo _ sequel <- getEndOfBlockInfo ;
+    	; MASSERT(case sequel of { OnStack -> True; _ -> False}) }
+	; allocStackTop (fixedHdrSize + 
 			   sIZEOF_StgUpdateFrame_NoHdr `quot` wORD_SIZE)
 	; vsp <- getVirtSp
 	; setStackFrame vsp