X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FPprCmmZ.hs;h=075f0e457b2161039d508b62c8c4e96e9f497d6e;hb=a02e7f40afc1aab7fe466f949f505c1d7250713d;hp=c588466051bd15b8dc1cc8078ddaaa77bd82b3b4;hpb=176fa33f17dd78355cc572e006d2ab26898e2c69;p=ghc-hetmet.git diff --git a/compiler/cmm/PprCmmZ.hs b/compiler/cmm/PprCmmZ.hs index c588466..075f0e4 100644 --- a/compiler/cmm/PprCmmZ.hs +++ b/compiler/cmm/PprCmmZ.hs @@ -6,15 +6,13 @@ where import BlockId import Cmm -import CmmExpr import PprCmm import Outputable import qualified ZipCfgCmmRep as G import qualified ZipCfg as Z import CmmZipUtil -import Maybe -import UniqSet +import Data.Maybe import FastString ---------------------------------------------------------------- @@ -27,50 +25,48 @@ pprCmmGraphLikeCmm g = vcat (swallow blocks) where blocks = Z.postorder_dfs g swallow :: [G.CmmBlock] -> [SDoc] swallow [] = [] - swallow (Z.Block id off t : rest) = tail (id, off) [] Nothing t rest + swallow (Z.Block id t : rest) = tail id [] Nothing t rest tail id prev' out (Z.ZTail m t) rest = tail id (mid m : prev') out t rest tail id prev' out (Z.ZLast (Z.LastOther l)) rest = last id prev' out l rest tail id prev' _ (Z.ZLast Z.LastExit) rest = exit id prev' rest mid m = ppr m - block' (id, off) prev' + block' id prev' | id == Z.lg_entry g, entry_has_no_pred = - vcat (text "" <> parens (ppr off) : reverse prev') - | otherwise = hang (ppr id <> parens (ppr off) <> colon) 4 (vcat (reverse prev')) + vcat (text "" : reverse prev') + | otherwise = hang (ppr id <> colon) 4 (vcat (reverse prev')) last id prev' out l n = let endblock stmt = block' id (stmt : prev') : swallow n in case l of G.LastBranch tgt -> case n of - Z.Block id' _ t : bs + Z.Block id' t : bs | tgt == id', unique_pred id' -> tail id prev' out t bs -- optimize out redundant labels _ -> endblock (ppr $ CmmBranch tgt) l@(G.LastCondBranch expr tid fid) -> let ft id = text "// fall through to " <> ppr id in case n of - Z.Block id' _ t : bs + Z.Block id' t : bs | id' == fid, isNothing out -> tail id (ft fid : ppr (CmmCondBranch expr tid) : prev') Nothing t bs | id' == tid, Just e' <- maybeInvertCmmExpr expr, isNothing out-> tail id (ft tid : ppr (CmmCondBranch e' fid) : prev') Nothing t bs _ -> endblock $ with_out out l - l@(G.LastJump {}) -> endblock $ with_out out l - l@(G.LastReturn {}) -> endblock $ with_out out l - l@(G.LastSwitch {}) -> endblock $ with_out out l - l@(G.LastCall _ _ _)-> endblock $ with_out out l + l@(G.LastSwitch {}) -> endblock $ with_out out l + l@(G.LastCall _ _ _ _ _) -> endblock $ with_out out l exit id prev' n = -- highly irregular (assertion violation?) let endblock stmt = block' id (stmt : prev') : swallow n in endblock (text "// ") preds = zipPreds g entry_has_no_pred = case lookupBlockEnv preds (Z.lg_entry g) of Nothing -> True - Just s -> isEmptyUniqSet s + Just s -> isEmptyBlockSet s single_preds = let add b single = let id = Z.blockId b in case lookupBlockEnv preds id of Nothing -> single - Just s -> if sizeUniqSet s == 1 then + Just s -> if sizeBlockSet s == 1 then extendBlockSet single id else single in Z.fold_blocks add emptyBlockSet g @@ -79,21 +75,14 @@ pprCmmGraphLikeCmm g = vcat (swallow blocks) with_out :: Maybe (G.Convention, CmmActuals) -> G.Last -> SDoc with_out Nothing l = ptext (sLit "??no-arguments??") <+> ppr l with_out (Just (conv, args)) l = last l - where last (G.LastCall e k _) = + where last (G.LastCall e k _ _ _) = hcat [ptext (sLit "... = foreign "), doubleQuotes(ppr conv), space, ppr_target e, parens ( commafy $ map ppr args ), ptext (sLit " \"safe\""), - case k of Nothing -> ptext (sLit " never returns") - Just _ -> empty, + text " returns to " <+> ppr k, semi ] - last (G.LastReturn _) = ppr (CmmReturn $ noHints args) - last (G.LastJump e _) = ppr (CmmJump e $ noHints args) last l = ppr l ppr_target (CmmLit lit) = pprLit lit ppr_target fn' = parens (ppr fn') commafy xs = hsep $ punctuate comma xs - --- Anything that uses this is bogus! -noHints :: [a] -> [CmmHinted a] -noHints = map (\v -> CmmHinted v NoHint)