(This is the module that knows all about stack layouts, etc.)
\begin{code}
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module CgStackery (
spRel, getVirtSp, getRealSp, setRealSp,
setRealAndVirtualSp, getSpRelOffset,
import FastString
import OrdList
import Outputable
+
+import Control.Monad
\end{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
off_updatee :: ByteOff
off_updatee = fixedHdrSize*wORD_SIZE + oFFSET_StgUpdateFrame_updatee
-\end{code}
+\end{code}
%************************************************************************