X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmm.hs;h=3fd5e441a65e9a54764a2a0829376430b24f67b5;hb=d76b6a05ab36066e8aeb67d58e25992d1ef83a8a;hp=db5accd3c05ba6f255e4219efaa3e1381f2d3c89;hpb=fd8d04119e849f9c713d3e697228846d93c5ca69;p=ghc-hetmet.git

diff --git a/compiler/cmm/Cmm.hs b/compiler/cmm/Cmm.hs
index db5accd..3fd5e44 100644
--- a/compiler/cmm/Cmm.hs
+++ b/compiler/cmm/Cmm.hs
@@ -1,7 +1,3 @@
-{-# OPTIONS -fno-warn-name-shadowing -w #-}
--- We'd like to use -fno-warn-orphans rather than -w, but old compilers
--- don't understand it so building stage1 fails.
-
 -----------------------------------------------------------------------------
 --
 -- Cmm data types
@@ -22,11 +18,13 @@ module Cmm (
         CmmReturnInfo(..),
 	CmmStmt(..), CmmActual, CmmActuals, CmmFormal, CmmFormals, CmmKind,
         CmmFormalsWithoutKinds, CmmFormalWithoutKind,
+        CmmHinted(..),
         CmmSafety(..),
 	CmmCallTarget(..),
 	CmmStatic(..), Section(..),
         module CmmExpr,
-        BlockId(..), freshBlockId,
+
+        BlockId(..), mkBlockId,
         BlockEnv, emptyBlockEnv, lookupBlockEnv, extendBlockEnv, mkBlockEnv,
         BlockSet, emptyBlockSet, elemBlockSet, extendBlockSet,
   ) where
@@ -44,7 +42,7 @@ import FastString
 
 import Data.Word
 
-import ZipCfg (	BlockId(..), freshBlockId
+import ZipCfg (	BlockId(..), mkBlockId
               , BlockEnv, emptyBlockEnv, lookupBlockEnv, extendBlockEnv, mkBlockEnv
               , BlockSet, emptyBlockSet, elemBlockSet, extendBlockSet
               )
@@ -243,8 +241,10 @@ data CmmStmt
       CmmActuals         -- with these return values.
 
 type CmmKind   = MachHint
-type CmmActual = (CmmExpr, CmmKind)
-type CmmFormal = (LocalReg,CmmKind)
+data CmmHinted a = CmmHinted { hintlessCmm :: a, cmmHint :: CmmKind }
+                         deriving (Eq)
+type CmmActual = CmmHinted CmmExpr
+type CmmFormal = CmmHinted LocalReg
 type CmmActuals = [CmmActual]
 type CmmFormals = [CmmFormal]
 type CmmFormalWithoutKind   = LocalReg
@@ -253,8 +253,8 @@ type CmmFormalsWithoutKinds = [CmmFormalWithoutKind]
 data CmmSafety      = CmmUnsafe | CmmSafe C_SRT
 
 -- | enable us to fold used registers over 'CmmActuals' and 'CmmFormals'
-instance UserOfLocalRegs a => UserOfLocalRegs (a, CmmKind) where
-  foldRegsUsed f set (a, _) = foldRegsUsed f set a
+instance UserOfLocalRegs a => UserOfLocalRegs (CmmHinted a) where
+  foldRegsUsed f set (CmmHinted a _) = foldRegsUsed f set a
 
 instance UserOfLocalRegs CmmStmt where
   foldRegsUsed f set s = stmt s set
@@ -274,6 +274,11 @@ instance UserOfLocalRegs CmmCallTarget where
     foldRegsUsed f set (CmmCallee e _) = foldRegsUsed f set e
     foldRegsUsed _ set (CmmPrim {})    = set
 
+--just look like a tuple, since it was a tuple before
+-- ... is that a good idea? --Isaac Dupree
+instance (Outputable a) => Outputable (CmmHinted a) where
+  ppr (CmmHinted a k) = ppr (a, k)
+
 {-
 Discussion
 ~~~~~~~~~~