)
where
-#include "HsVersions.h"
-
import Cmm
import CmmExpr
import ForeignCall
last id prev' out l n =
let endblock stmt = block' id (stmt : prev') : swallow n in
case l of
- G.LastBranch tgt [] ->
+ G.LastBranch tgt ->
case n of
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.LastBranch {}) -> endblock $ with_out out l
l@(G.LastCondBranch expr tid fid) ->
let ft id = text "// fall through to " <> ppr id in
case n of
let call = CmmCall tgt' ress args (CmmSafe srt) CmmMayReturn
tgt' = CmmCallee tgt (cconv_of_conv conv)
delayed =
- ptext SLIT("// delayed CopyIn follows previous call")
+ ptext (sLit "// delayed CopyIn follows previous call")
in tail id (delayed : ppr call : prev') Nothing t bs
| otherwise -> endblock $ with_out out l
findCopyIn (Z.ZTail (G.CopyIn _ ress srt) _) = Just (ress, srt)
cconv_of_conv (G.ConventionPrivate {}) = CmmCallConv -- XXX totally bogus
with_out :: Maybe (G.Convention, CmmActuals) -> G.Last -> SDoc
-with_out Nothing l = ptext SLIT("??no-arguments??") <+> ppr l
+with_out Nothing l = ptext (sLit "??no-arguments??") <+> ppr l
with_out (Just (conv, args)) l = last l
where last (G.LastCall e k) =
- hcat [ptext SLIT("... = foreign "),
+ 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")
+ ptext (sLit " \"safe\""),
+ case k of Nothing -> ptext (sLit " never returns")
Just _ -> empty,
semi ]
+ last (G.LastReturn) = ppr (CmmReturn args)
+ last (G.LastJump e) = ppr (CmmJump e args)
last l = ppr (G.CopyOut conv args) $$ ppr l
ppr_target (CmmLit lit) = pprLit lit
ppr_target fn' = parens (ppr fn')