X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgMonad.lhs;h=af6b1ed311c222775b148ed4062f8dc850c20c49;hb=984a288119983912d40a80845c674ee4b83a19ce;hp=6861a2c2c00c4c0eeda43b43166ca8bfe736072b;hpb=17b297d97d327620ed6bfab942f8992b2446f1bf;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgMonad.lhs b/compiler/codeGen/CgMonad.lhs
index 6861a2c..af6b1ed 100644
--- a/compiler/codeGen/CgMonad.lhs
+++ b/compiler/codeGen/CgMonad.lhs
@@ -8,19 +8,12 @@ See the beginning of the top-level @CodeGen@ module, to see how this
 monadic stuff fits into the Big Picture.
 
 \begin{code}
-{-# 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 CgMonad (
 	Code,	-- type
 	FCode,	-- type
 
 	initC, thenC, thenFC, listCs, listFCs, mapCs, mapFCs,
-	returnFC, fixC, checkedAbsC, 
+	returnFC, fixC, fixC_, checkedAbsC, 
 	stmtC, stmtsC, labelC, emitStmts, nopC, whenC, newLabelC,
 	newUnique, newUniqSupply, 
 
@@ -69,7 +62,7 @@ module CgMonad (
 import {-# SOURCE #-} CgBindery ( CgBindings, nukeVolatileBinds )
 
 import DynFlags
-import PackageConfig
+import BlockId
 import Cmm
 import CmmUtils
 import CLabel
@@ -80,9 +73,9 @@ import Id
 import VarEnv
 import OrdList
 import Unique
-import Util
+import Util()
 import UniqSupply
-import FastString
+import FastString()
 import Outputable
 
 import Control.Monad
@@ -165,6 +158,7 @@ data EndOfBlockInfo
 			  -- by a case alternative.
 	Sequel
 
+initEobInfo :: EndOfBlockInfo
 initEobInfo = EndOfBlockInfo 0 OnStack
 \end{code}
 
@@ -241,6 +235,7 @@ flattenCgStmts id stmts =
 	    where (block,blocks) = flatten stmts
 	(CgFork fork_id stmts : ss) -> 
 	   flatten (CgFork fork_id stmts : CgStmt stmt : ss)
+        (CgStmt {} : _) -> panic "CgStmt not seen as ordinary"
 
   flatten (s:ss) = 
 	case s of
@@ -251,12 +246,14 @@ flattenCgStmts id stmts =
 		where (fork_block, fork_blocks) = flatten (fromOL stmts)
     where (block,blocks) = flatten ss
 
+isJump :: CmmStmt -> Bool
 isJump (CmmJump _ _) = True
 isJump (CmmBranch _) = True
 isJump (CmmSwitch _ _) = True
 isJump (CmmReturn _) = True
 isJump _ = False
 
+isOrdinaryStmt :: CgStmt -> Bool
 isOrdinaryStmt (CgStmt _) = True
 isOrdinaryStmt _ = False
 \end{code}
@@ -397,7 +394,7 @@ initC dflags mod (FCode code)
 	}
 
 returnFC :: a -> FCode a
-returnFC val = FCode (\info_down state -> (val, state))
+returnFC val = FCode (\_ state -> (val, state))
 \end{code}
 
 \begin{code}
@@ -446,6 +443,9 @@ fixC fcode = FCode (
 		in
 			result
 	)
+
+fixC_ :: (a -> FCode a) -> FCode ()
+fixC_ fcode = fixC fcode >> return ()
 \end{code}
 
 %************************************************************************
@@ -457,10 +457,10 @@ fixC fcode = FCode (
 
 \begin{code}
 getState :: FCode CgState
-getState = FCode $ \info_down state -> (state,state)
+getState = FCode $ \_ state -> (state,state)
 
 setState :: CgState -> FCode ()
-setState state = FCode $ \info_down _ -> ((),state)
+setState state = FCode $ \_ _ -> ((),state)
 
 getStkUsage :: FCode StackUsage
 getStkUsage = do
@@ -702,7 +702,7 @@ nopC = return ()
 
 whenC :: Bool -> Code -> Code
 whenC True  code = code
-whenC False code = nopC
+whenC False _    = nopC
 
 stmtC :: CmmStmt -> Code
 stmtC stmt = emitCgStmt (CgStmt stmt)
@@ -711,7 +711,8 @@ labelC :: BlockId -> Code
 labelC id = emitCgStmt (CgLabel id)
 
 newLabelC :: FCode BlockId
-newLabelC = do { id <- newUnique; return (BlockId id) }
+newLabelC = do { u <- newUnique
+               ; return $ BlockId u }
 
 checkedAbsC :: CmmStmt -> Code
 -- Emit code, eliminating no-ops
@@ -745,7 +746,7 @@ emitData sect lits
 
 emitProc :: CmmInfo -> CLabel -> CmmFormals -> [CmmBasicBlock] -> Code
 emitProc info lbl args blocks
-  = do  { let proc_block = CmmProc info lbl args blocks
+  = do  { let proc_block = CmmProc info lbl args (ListGraph blocks)
 	; state <- getState
 	; setState $ state { cgs_tops = cgs_tops state `snocOL` proc_block } }
 
@@ -758,11 +759,14 @@ emitSimpleProc lbl code
 
 getCmm :: Code -> FCode Cmm
 -- Get all the CmmTops (there should be no stmts)
+-- Return a single Cmm which may be split from other Cmms by
+-- object splitting (at a later stage)
 getCmm code 
   = do	{ state1 <- getState
 	; ((), state2) <- withState code (state1 { cgs_tops  = nilOL })
 	; setState $ state2 { cgs_tops = cgs_tops state1 } 
-	; return (Cmm (fromOL (cgs_tops state2))) }
+	; return (Cmm (fromOL (cgs_tops state2))) 
+        }
 
 -- ----------------------------------------------------------------------------
 -- CgStmts