update for changes in hetmet Makefile

[ghc-hetmet.git] / compiler / nativeGen / RegAlloc / Linear / Main.hs

diff --git a/compiler/nativeGen/RegAlloc/Linear/Main.hs b/compiler/nativeGen/RegAlloc/Linear/Main.hs
index 29cc0e5..5fab944 100644 (file)
--- a/compiler/nativeGen/RegAlloc/Linear/Main.hs
+++ b/compiler/nativeGen/RegAlloc/Linear/Main.hs
@@ -102,7 +102,7 @@ import Instruction
 import Reg
 
 import BlockId
-import Cmm hiding (RegSet)
+import OldCmm hiding (RegSet)
 
 import Digraph
 import Unique
@@ -132,12 +132,12 @@ regAlloc (CmmData sec d)
                ( CmmData sec d
                , Nothing )
        
-regAlloc (CmmProc (LiveInfo info _ _) lbl params [])
-       = return ( CmmProc info lbl params (ListGraph [])
+regAlloc (CmmProc (LiveInfo info _ _ _) lbl [])
+       = return ( CmmProc info lbl (ListGraph [])
                 , Nothing )
        
-regAlloc (CmmProc static lbl params sccs)
-       | LiveInfo info (Just first_id) (Just block_live)       <- static
+regAlloc (CmmProc static lbl sccs)
+       | LiveInfo info (Just first_id) (Just block_live) _     <- static
        = do    
                -- do register allocation on each component.
                (final_blocks, stats)
@@ -148,11 +148,11 @@ regAlloc (CmmProc static lbl params sccs)
                let ((first':_), rest')
                                = partition ((== first_id) . blockId) final_blocks
 
-               return  ( CmmProc info lbl params (ListGraph (first' : rest'))
+               return  ( CmmProc info lbl (ListGraph (first' : rest'))
                        , Just stats)
        
 -- bogus. to make non-exhaustive match warning go away.
-regAlloc (CmmProc _ _ _ _)
+regAlloc (CmmProc _ _ _)
        = panic "RegAllocLinear.regAlloc: no match"
 
 
@@ -206,15 +206,18 @@ linearRA_SCCs first_id block_live blocksAcc (CyclicSCC blocks : sccs)
    some reason then this function will loop. We should probably do some 
    more sanity checking to guard against this eventuality.
 -}
-               
+
 process _ _ [] []         accum _
        = return $ reverse accum
 
 process first_id block_live [] next_round accum madeProgress
        | not madeProgress
-       = pprPanic "RegAlloc.Linear.Main.process: no progress made, bailing out" 
-               (  text "stalled blocks:"
-               $$ vcat (map ppr next_round))
+       
+         {- BUGS: There are so many unreachable blocks in the code the warnings are overwhelming.
+            pprTrace "RegAlloc.Linear.Main.process: no progress made, bailing out." 
+               (  text "Unreachable blocks:"
+               $$ vcat (map ppr next_round)) -}
+       = return $ reverse accum
        
        | otherwise
        = process first_id block_live 
@@ -225,7 +228,7 @@ process first_id block_live (b@(BasicBlock id _) : blocks)
  = do  
        block_assig <- getBlockAssigR
 
-       if isJust (lookupBlockEnv block_assig id) 
+       if isJust (mapLookup id block_assig) 
              || id == first_id
          then do 
                b'  <- processBlock block_live b
@@ -256,7 +259,7 @@ processBlock block_live (BasicBlock id instrs)
 initBlock :: BlockId -> RegM ()
 initBlock id
  = do  block_assig     <- getBlockAssigR
-       case lookupBlockEnv block_assig id of
+       case mapLookup id block_assig of
                -- no prior info about this block: assume everything is
                -- free and the assignment is empty.
                Nothing
@@ -380,9 +383,9 @@ genRaInsn block_live new_instrs block_id instr r_dying w_dying =
     clobber_saves      <- saveClobberedTemps real_written r_dying
 
     -- debugging
-    freeregs <- getFreeRegsR
+{-    freeregs <- getFreeRegsR
     assig    <- getAssigR
-{-    pprTrace "genRaInsn" 
+    pprTrace "genRaInsn" 
        (ppr instr 
                $$ text "r_dying      = " <+> ppr r_dying 
                $$ text "w_dying      = " <+> ppr w_dying