Add {-# OPTIONS_GHC -w #-} and some blurb to all compiler modules

[ghc-hetmet.git] / compiler / codeGen / CgPrimOp.hs

diff --git a/compiler/codeGen/CgPrimOp.hs b/compiler/codeGen/CgPrimOp.hs
index 049e12a..c81cd56 100644 (file)
--- a/compiler/codeGen/CgPrimOp.hs
+++ b/compiler/codeGen/CgPrimOp.hs
@@ -6,6 +6,13 @@
 --
 -----------------------------------------------------------------------------
 
+{-# OPTIONS_GHC -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/WorkingConventions#Warnings
+-- for details
+
 module CgPrimOp (
    cgPrimOp
  ) where
@@ -121,6 +128,7 @@ emitPrimOp [res] ParOp [arg] live
        [(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")))
 
@@ -138,6 +146,7 @@ emitPrimOp [] WriteMutVarOp [mutv,var] live
                [(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_))
@@ -344,6 +353,7 @@ 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