import DynFlags
import StaticFlags
import CoreSyn
+import PprCore
import CoreFVs
import CoreUtils
import Literal
instance Outputable SimplCont where
ppr (Stop ty is_rhs _) = ptext SLIT("Stop") <> brackets (ppr is_rhs) <+> ppr ty
- ppr (ApplyTo dup arg se cont) = (ptext SLIT("ApplyTo") <+> ppr dup <+> ppr arg) $$ ppr cont
+ ppr (ApplyTo dup arg se cont) = ((ptext SLIT("ApplyTo") <+> ppr dup <+> pprParendExpr arg) $$
+ nest 2 (pprSimplEnv se)) $$ ppr cont
ppr (StrictBind b _ _ _ cont) = (ptext SLIT("StrictBind") <+> ppr b) $$ ppr cont
ppr (StrictArg f _ _ cont) = (ptext SLIT("StrictArg") <+> ppr f) $$ ppr cont
ppr (Select dup bndr alts se cont) = (ptext SLIT("Select") <+> ppr dup <+> ppr bndr) $$
- (nest 4 (ppr alts $$ ppr (seIdSubst se))) $$ ppr cont
+ (nest 4 (ppr alts $$ pprSimplEnv se)) $$ ppr cont
ppr (CoerceIt co cont) = (ptext SLIT("CoerceIt") <+> ppr co) $$ ppr cont
data DupFlag = OkToDup | NoDup
interestingArg (Type _) = False
interestingArg (App fn (Type _)) = interestingArg fn
interestingArg (Note _ a) = interestingArg a
+
+-- Idea (from Sam B); I'm not sure if it's a good idea, so commented out for now
+-- interestingArg expr | isUnLiftedType (exprType expr)
+-- -- Unlifted args are only ever interesting if we know what they are
+-- = case expr of
+-- Lit lit -> True
+-- _ -> False
+
interestingArg other = True
-- Consider let x = 3 in f x
-- The substitution will contain (x -> ContEx 3), and we want to
-- to work in Template Haskell when simplifying
-- splices, so we get simpler code for literal strings
SimplPhase n -> Just (isActive n)
-\end{code}
+\end{code}
%************************************************************************
other -> ...(case x of
0# -> ...
other -> ...) ...
-\end{code}
+\end{verbatim}
Here the inner case can be eliminated. This really only shows up in
eliminating error-checking code.