X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fmain%2FConstants.lhs;h=2e0c4d4095240416c6de90a91e85e92268250ced;hb=0b9530245a33b8206ca38b9de6dfb01e056fd8dc;hp=2d72df2710c712fa9aaac584562371f0bc7c6ef4;hpb=9ff76535edb25ab7434284adddb5c64708ecb547;p=ghc-hetmet.git

diff --git a/compiler/main/Constants.lhs b/compiler/main/Constants.lhs
index 2d72df2..2e0c4d4 100644
--- a/compiler/main/Constants.lhs
+++ b/compiler/main/Constants.lhs
@@ -6,6 +6,8 @@
 \begin{code}
 module Constants (module Constants) where
 
+import Data.Bits (shiftL)
+
 -- This magical #include brings in all the everybody-knows-these magic
 -- constants unfortunately, we need to be *explicit* about which one
 -- we want; if we just hope a -I... will get the right one, we could
@@ -79,16 +81,6 @@ pROF_HDR_SIZE      = (PROF_HDR_SIZE      :: Int)
 gRAN_HDR_SIZE      = (GRAN_HDR_SIZE      :: Int)
 \end{code}
 
-Info Table sizes.
-
-\begin{code}
-sTD_ITBL_SIZE   = (STD_ITBL_SIZE   :: Int)
-rET_ITBL_SIZE   = (RET_ITBL_SIZE   :: Int)
-pROF_ITBL_SIZE  = (PROF_ITBL_SIZE  :: Int)
-gRAN_ITBL_SIZE  = (GRAN_ITBL_SIZE  :: Int)
-tICKY_ITBL_SIZE = (TICKY_ITBL_SIZE :: Int)
-\end{code}
-
 Size of a double in StgWords.
 
 \begin{code}
@@ -118,6 +110,14 @@ wORD_SIZE = (SIZEOF_HSWORD :: Int)
 wORD_SIZE_IN_BITS = wORD_SIZE * 8 :: Int
 \end{code}
 
+Amount of pointer bits used for semi-tagging constructor closures
+
+\begin{code}
+tAG_BITS    = (TAG_BITS :: Int)
+tAG_MASK    = ((1 `shiftL` tAG_BITS) - 1) :: Int
+mAX_PTR_TAG = tAG_MASK :: Int
+\end{code}
+
 Size of a C int, in bytes. May be smaller than wORD_SIZE.
 
 \begin{code}