X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmm.hs;h=c48269ecf51c70f387a1520929a254bab3ba4bf0;hb=787b08bdea84cca4bf9490d87c059453bffc5ad2;hp=2ee259c78a828e41851a46524194472a51e43d87;hpb=e6243a818496aad82b6f47511d3bd9bc800f747d;p=ghc-hetmet.git

diff --git a/compiler/cmm/Cmm.hs b/compiler/cmm/Cmm.hs
index 2ee259c..c48269e 100644
--- a/compiler/cmm/Cmm.hs
+++ b/compiler/cmm/Cmm.hs
@@ -135,7 +135,7 @@ cmmTopMapGraphM :: Monad m => (String -> g -> m g') -> GenCmmTop d h g -> m (Gen
 
 cmmMapGraph f (Cmm tops) = Cmm $ map (cmmTopMapGraph f) tops
 cmmTopMapGraph f (CmmProc h l args g) = CmmProc h l args (f g)
-cmmTopMapGraph _ (CmmData s ds)       = CmmData s ds
+cmmTopMapGraph _ (CmmData s ds)             = CmmData s ds
 
 cmmMapGraphM f (Cmm tops) = mapM (cmmTopMapGraphM f) tops >>= return . Cmm
 cmmTopMapGraphM f (CmmProc h l args g) =
@@ -174,7 +174,9 @@ data ClosureTypeInfo
   | ThunkInfo  ClosureLayout C_SRT
   | ThunkSelectorInfo SelectorOffset C_SRT
   | ContInfo
-      [Maybe LocalReg]  -- stack layout
+      [Maybe LocalReg]  -- Stack layout: Just x, an item x
+                        --               Nothing: a 1-word gap
+			-- Start of list is the *young* end
       C_SRT
 
 data CmmReturnInfo = CmmMayReturn
@@ -382,6 +384,7 @@ data CallishMachOp
   | MO_F32_Exp
   | MO_F32_Sqrt
   | MO_WriteBarrier
+  | MO_Touch         -- Keep variables live (when using interior pointers)
   deriving (Eq, Show)
 
 pprCallishMachOp :: CallishMachOp -> SDoc