X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmmProcPointZ.hs;h=fc6b72654449500de085cac798f2050ec65fe4e3;hb=ba60dc74fdb18fe655cfac605130cf6480116e47;hp=c5d71773604fccb1d51d848d83d04121540784db;hpb=8acda75bd98763ac5643a2152960102a4d98122b;p=ghc-hetmet.git diff --git a/compiler/cmm/CmmProcPointZ.hs b/compiler/cmm/CmmProcPointZ.hs index c5d7177..fc6b726 100644 --- a/compiler/cmm/CmmProcPointZ.hs +++ b/compiler/cmm/CmmProcPointZ.hs @@ -1,4 +1,4 @@ -{-# OPTIONS -Wall -fno-warn-name-shadowing #-} + module CmmProcPointZ ( minimalProcPointSet , addProcPointProtocols @@ -22,8 +22,8 @@ import Panic import UniqFM import UniqSet import ZipCfg -import ZipCfgCmm -import ZipDataflow +import ZipCfgCmmRep +import ZipDataflow0 -- Compute a minimal set of proc points for a control-flow graph. @@ -116,13 +116,13 @@ forward = FComp "proc-point reachability" first middle last exit where first ProcPoint id = ReachedBy $ unitUniqSet id first x _ = x middle x _ = x - last _ (LastCall _ _ (Just id)) = LastOutFacts [(id, ProcPoint)] + last _ (LastCall _ (Just id)) = LastOutFacts [(id, ProcPoint)] last x l = LastOutFacts $ map (\id -> (id, x)) (succs l) - exit _ = LastOutFacts [] + exit x = x minimalProcPointSet :: CmmGraph -> ProcPointSet minimalProcPointSet g = extendPPSet g (postorder_dfs g) entryPoint - where entryPoint = unitUniqSet (gr_entry g) + where entryPoint = unitUniqSet (lg_entry g) extendPPSet :: CmmGraph -> [CmmBlock] -> ProcPointSet -> ProcPointSet extendPPSet g blocks procPoints = @@ -132,7 +132,7 @@ extendPPSet g blocks procPoints = Nothing -> procPoints' where env = runDFA lattice $ do refine_f_anal forward g set_init_points - allFacts + getAllFacts set_init_points = mapM_ (\id -> setFact id ProcPoint) (uniqSetToList procPoints) procPoints' = fold_blocks add emptyBlockSet g @@ -217,7 +217,7 @@ addProcPointProtocols procPoints formals g = where optimize_calls g = -- see Note [Separate Adams optimization] let (protos, blocks') = fold_blocks maybe_add_call (init_protocols, emptyBlockEnv) g - g' = LGraph (gr_entry g) (add_CopyIns protos blocks') + g' = LGraph (lg_entry g) (add_CopyIns protos blocks') in (protos, runTx removeUnreachableBlocksZ g') maybe_add_call :: CmmBlock -> (BlockEnv Protocol, BlockEnv CmmBlock) -> (BlockEnv Protocol, BlockEnv CmmBlock) @@ -226,11 +226,11 @@ addProcPointProtocols procPoints formals g = -- redirect the call (cf 'newblock') and set the protocol if necessary maybe_add_call block (protos, blocks) = case goto_end $ unzip block of - (h, LastOther (LastCall tgt args (Just k))) + (h, LastOther (LastCall tgt (Just k))) | Just proto <- lookupBlockEnv protos k, Just pee <- jumpsToProcPoint k -> let newblock = - zipht h (tailOfLast (LastCall tgt args (Just pee))) + zipht h (tailOfLast (LastCall tgt (Just pee))) changed_blocks = insertBlock newblock blocks unchanged_blocks = insertBlock block blocks in case lookupBlockEnv protos pee of @@ -243,20 +243,21 @@ addProcPointProtocols procPoints formals g = jumpsToProcPoint :: BlockId -> Maybe BlockId -- ^ Tells whether the named block is just a jump to a proc point jumpsToProcPoint id = - let (Block _ t) = lookupBlockEnv (gr_blocks g) id `orElse` + let (Block _ t) = lookupBlockEnv (lg_blocks g) id `orElse` panic "jump out of graph" in case t of - ZTail (CopyIn {}) (ZLast (LastOther (LastBranch pee []))) + ZTail (CopyIn {}) (ZLast (LastOther (LastBranch pee))) | elemBlockSet pee procPoints -> Just pee _ -> Nothing init_protocols = fold_blocks maybe_add_proto emptyBlockEnv g maybe_add_proto :: CmmBlock -> BlockEnv Protocol -> BlockEnv Protocol maybe_add_proto (Block id (ZTail (CopyIn c fs _srt) _)) env = extendBlockEnv env id (Protocol c fs) - maybe_add_proto (Block id _) env | id == gr_entry g = - extendBlockEnv env id (Protocol (Argument CmmCallConv) hinted_formals) + maybe_add_proto (Block id _) env | id == lg_entry g = + extendBlockEnv env id (Protocol stdArgConvention hinted_formals) maybe_add_proto _ env = env - hinted_formals = map (\x -> (x, NoHint)) formals + hinted_formals = map (\x -> CmmHinted x NoHint) formals + stdArgConvention = ConventionStandard CmmCallConv Arguments -- | For now, following a suggestion by Ben Lippmeier, we pass all -- live variables as arguments, hoping that a clever register @@ -278,9 +279,9 @@ pass_live_vars_as_args procPoints (protos, g) = (protos', g') Nothing -> let live = lookupBlockEnv liveness id `orElse` emptyRegSet -- XXX there's a bug lurking! -- panic ("no liveness at block " ++ show id) - formals = map (\x->(x,NoHint)) $ uniqSetToList live - in extendBlockEnv protos id (Protocol Local formals) - g' = g { gr_blocks = add_CopyIns protos' (gr_blocks g) } + formals = map (\x -> CmmHinted x NoHint) $ uniqSetToList live + in extendBlockEnv protos id (Protocol ConventionPrivate formals) + g' = g { lg_blocks = add_CopyIns protos' (lg_blocks g) } -- | Add a CopyIn node to each block that has a protocol but lacks the