X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fcmm%2FZipCfgExtras.hs;h=0f8eeb0d2b7242043878e3bf5afc53f8d033a80b;hp=787a58abfe2977ce4ab417d4e856c5b7647396ad;hb=edc0bafd3fcd01b85a2e8894e5dfe149eb0e0857;hpb=b9bcf6e71abe0d861c99618ee5a7ae9e2c45d26c

diff --git a/compiler/cmm/ZipCfgExtras.hs b/compiler/cmm/ZipCfgExtras.hs
index 787a58a..0f8eeb0 100644
--- a/compiler/cmm/ZipCfgExtras.hs
+++ b/compiler/cmm/ZipCfgExtras.hs
@@ -12,6 +12,7 @@
 module ZipCfgExtras
   ()
 where
+import BlockId
 import Maybes
 import Panic
 import ZipCfg
@@ -23,7 +24,7 @@ exit    :: LGraph m l -> FGraph m l         -- focus on edge into default exit n
                                             -- (fails if there isn't one)
 focusp  :: (Block m l -> Bool) -> LGraph m l -> Maybe (FGraph m l)
                                       -- focus on start of block satisfying predicate
-unfocus :: FGraph m l -> LGraph m l            -- lose focus 
+-- unfocus :: FGraph m l -> LGraph m l            -- lose focus 
 
 -- | We can insert a single-entry, single-exit subgraph at
 -- the current focus.
@@ -36,11 +37,11 @@ splice_focus_exit  :: FGraph m l -> LGraph m l -> FGraph m l
 
 _unused :: ()
 _unused = all `seq` ()
-    where all = ( exit, focusp, unfocus {- , splice_focus_entry, splice_focus_exit -}
-                , fold_fwd_block, foldM_fwd_block (\_ a -> Just a)
+    where all = ( exit, focusp --, unfocus {- , splice_focus_entry, splice_focus_exit -}
+                , foldM_fwd_block (\_ a -> Just a)
                 )
 
-unfocus (FGraph e bz bs) = LGraph e (insertBlock (zip bz) bs)
+--unfocus (FGraph e bz bs) = LGraph e (insertBlock (zip bz) bs)
 
 focusp p (LGraph entry blocks) =
     fmap (\(b, bs) -> FGraph entry (unzip b) bs) (splitp_blocks p blocks)
@@ -60,14 +61,6 @@ splice_focus_exit (FGraph eid (ZBlock head tail) blocks) g =
   FGraph eid (ZBlock head' tail) (plusUFM (lg_blocks g') blocks)
 -}
 
--- | Fold from first to last
-fold_fwd_block ::
-  (BlockId -> a -> a) -> (m -> a -> a) -> (ZLast l -> a -> a) ->
-  Block m l -> a -> a
-fold_fwd_block first middle last (Block id t) z = tail t (first id z)
-    where tail (ZTail m t) z = tail t (middle m z)
-          tail (ZLast l)   z = last l z
-
 -- | iterate from first to last
 foldM_fwd_block ::
   Monad m => (BlockId -> a -> m a) -> (mid -> a -> m a) -> (ZLast l -> a -> m a) ->
@@ -78,6 +71,6 @@ foldM_fwd_block first middle last (Block id t) z = do { z <- first id z; tail t
 
 splitp_blocks :: (Block m l -> Bool) -> BlockEnv (Block m l) ->
                  Maybe (Block m l, BlockEnv (Block m l))
-splitp_blocks = undefined -- implemented in ZipCfg but not exported
+splitp_blocks = panic "splitp_blocks" -- implemented in ZipCfg but not exported
 is_exit :: Block m l -> Bool
-is_exit = undefined -- implemented in ZipCfg but not exported
+is_exit = panic "is_exit" -- implemented in ZipCfg but not exported