#include "HsVersions.h"
+import BlockId
import MachRegs
import MachInstrs
import RegAllocInfo
, Nothing )
regAlloc (CmmProc (LiveInfo info _ _) lbl params (ListGraph []))
- = return
- ( CmmProc info lbl params (ListGraph [])
- , Nothing )
+ = return ( CmmProc info lbl params (ListGraph [])
+ , Nothing )
regAlloc (CmmProc static lbl params (ListGraph comps))
| LiveInfo info (Just first_id) block_live <- static
initBlock :: BlockId -> RegM ()
initBlock id
= do block_assig <- getBlockAssigR
- case lookupUFM block_assig id of
+ case lookupBlockEnv block_assig id of
-- no prior info about this block: assume everything is
-- free and the assignment is empty.
Nothing
recordSpill (SpillClobber temp)
let new_assign = addToUFM assig temp (InBoth reg slot)
- clobber new_assign (spill : COMMENT FSLIT("spill clobber") : instrs) rest
+ clobber new_assign (spill : COMMENT (fsLit "spill clobber") : instrs) rest
clobberRegs :: [RegNo] -> RegM ()
clobberRegs [] = return () -- common case
(spill_insn, slot) <- spillR (RealReg my_reg) temp_to_push_out
let spill_store = (if reading then id else reverse)
- [ COMMENT FSLIT("spill alloc")
+ [ COMMENT (fsLit "spill alloc")
, spill_insn ]
-- record that this temp was spilled
= do
insn <- loadR (RealReg hreg) slot
recordSpill (SpillLoad $ getUnique vreg)
- return $ COMMENT FSLIT("spill load") : insn : spills
+ return $ COMMENT (fsLit "spill load") : insn : spills
loadTemp _ _ _ _ spills =
return spills
regsOfLoc (InBoth r _) = [r]
regsOfLoc (InMem _) = []
-- in
- case lookupUFM block_assig dest of
+ case lookupBlockEnv block_assig dest of
-- Nothing <=> this is the first time we jumped to this
-- block.
Nothing -> do
freeregs <- getFreeRegsR
let freeregs' = foldr releaseReg freeregs to_free
- setBlockAssigR (addToUFM block_assig dest
+ setBlockAssigR (extendBlockEnv block_assig dest
(freeregs',adjusted_assig))
joinToTargets block_live new_blocks instr dests
delta <- getDeltaR
let graph = makeRegMovementGraph adjusted_assig dest_assig
- let sccs = stronglyConnCompR graph
+ let sccs = stronglyConnCompFromEdgedVerticesR graph
fixUpInstrs <- mapM (handleComponent delta instr) sccs
block_id <- getUniqueR
joinToTargets block_live (block : new_blocks) instr' dests
--- | Construct a graph of register/spill movements.
+-- | Construct a graph of register\/spill movements.
--
-- We cut some corners by
-- a) not handling cyclic components
= expandNode vreg src
$ lookupWithDefaultUFM_Directly
dest_assig
- (panic "RegisterAlloc.joinToTargets")
+ (panic "RegAllocLinear.makeRegMovementGraph")
vreg
in [ node | (vreg, src) <- ufmToList adjusted_assig
= do
spill_id <- getUniqueR
(_, slot) <- spillR (RealReg sreg) spill_id
- remainingFixUps <- mapM (handleComponent delta instr) (stronglyConnCompR rest)
+ remainingFixUps <- mapM (handleComponent delta instr) (stronglyConnCompFromEdgedVerticesR rest)
restoreAndFixInstr <- getRestoreMoves dsts slot
return ([instr] ++ concat remainingFixUps ++ restoreAndFixInstr)
= do
restoreToReg <- loadR (RealReg reg) slot
moveInstr <- makeMove delta vreg r mem
- return $ [COMMENT FSLIT("spill join move"), restoreToReg, moveInstr]
+ return $ [COMMENT (fsLit "spill join move"), restoreToReg, moveInstr]
getRestoreMoves [InReg reg] slot
= loadR (RealReg reg) slot >>= return . (:[])
my_fromJust _ _ (Just x) = x
my_fromJust s p Nothing = pprPanic ("fromJust: " ++ s) p
-lookItUp :: Uniquable b => String -> UniqFM a -> b -> a
-lookItUp str fm x = my_fromJust str (ppr (getUnique x)) (lookupUFM fm x)
+lookItUp :: String -> BlockMap a -> BlockId -> a
+lookItUp str fm x = my_fromJust str (ppr x) (lookupBlockEnv fm x)