import Cmm
import Bag
+import Digraph
import UniqFM
import UniqSet
import UniqSupply
-import Control.Monad
import Data.List
-- | Do register coalescing on this top level thing
slurpJoinMovs live
= slurpCmm emptyBag live
where
- slurpCmm rs CmmData{} = rs
- slurpCmm rs (CmmProc _ _ _ (ListGraph blocks)) = foldl' slurpComp rs blocks
- slurpComp rs (BasicBlock _ blocks) = foldl' slurpBlock rs blocks
- slurpBlock rs (BasicBlock _ instrs) = foldl' slurpLI rs instrs
+ slurpCmm rs CmmData{} = rs
+ slurpCmm rs (CmmProc _ _ _ sccs) = foldl' slurpBlock rs (flattenSCCs sccs)
+ slurpBlock rs (BasicBlock _ instrs) = foldl' slurpLI rs instrs
- slurpLI rs (Instr _ Nothing) = rs
- slurpLI rs (Instr instr (Just live))
+ slurpLI rs (LiveInstr _ Nothing) = rs
+ slurpLI rs (LiveInstr instr (Just live))
| Just (r1, r2) <- takeRegRegMoveInstr instr
, elementOfUniqSet r1 $ liveDieRead live
, elementOfUniqSet r2 $ liveBorn live
| otherwise
= rs
-
- slurpLI rs SPILL{} = rs
- slurpLI rs RELOAD{} = rs