X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmm.hs;h=5ad8ee7dcfc92bb14e1fc49e19acaded792cb9bc;hb=b4fd46494dc922a8e1134c9396cada1f10e74e55;hp=c2f8d48e73b4f180ebd575ec3802f0e1cae0448e;hpb=f2cc8b5bc34519a65581dc40b7bfebac97bffd73;p=ghc-hetmet.git

diff --git a/compiler/cmm/Cmm.hs b/compiler/cmm/Cmm.hs
index c2f8d48..5ad8ee7 100644
--- a/compiler/cmm/Cmm.hs
+++ b/compiler/cmm/Cmm.hs
@@ -10,7 +10,7 @@ module Cmm (
 	GenCmm(..), Cmm,
 	GenCmmTop(..), CmmTop,
 	GenBasicBlock(..), CmmBasicBlock, blockId, blockStmts,
-	CmmStmt(..),  
+	CmmStmt(..), CmmActuals, CmmFormals,
 	CmmCallTarget(..),
 	CmmStatic(..), Section(..),
 	CmmExpr(..), cmmExprRep, 
@@ -20,7 +20,7 @@ module Cmm (
 	BlockId(..),
 	GlobalReg(..), globalRegRep,
 
-	node, nodeReg, spReg, hpReg,
+	node, nodeReg, spReg, hpReg, spLimReg
   ) where
 
 #include "HsVersions.h"
@@ -113,8 +113,8 @@ data CmmStmt
 
   | CmmCall	 		 -- A foreign call, with 
      CmmCallTarget
-     [(CmmReg,MachHint)]	 -- zero or more results
-     [(CmmExpr,MachHint)]	 -- zero or more arguments
+     CmmFormals			 -- zero or more results
+     CmmActuals			 -- zero or more arguments
      (Maybe [GlobalReg])	 -- Global regs that may need to be saved
 				 -- if they will be clobbered by the call.
 				 -- Nothing <=> save *all* globals that
@@ -131,10 +131,13 @@ data CmmStmt
 	-- Undefined outside range, and when there's a Nothing
 
   | CmmJump CmmExpr               -- Jump to another function,
-    [(CmmExpr, MachHint)]         -- with these parameters.
+    CmmActuals                    -- with these parameters.
 
   | CmmReturn                     -- Return from a function,
-    [(CmmExpr, MachHint)]         -- with these return values.
+    CmmActuals                    -- with these return values.
+
+type CmmActuals = [(CmmExpr,MachHint)]
+type CmmFormals = [(CmmReg,MachHint)]
 
 {-
 Discussion
@@ -272,6 +275,8 @@ newtype BlockId = BlockId Unique
 instance Uniquable BlockId where
   getUnique (BlockId u) = u
 
+type BlockEnv a = UniqFM {- BlockId -} a
+
 -----------------------------------------------------------------------------
 --		Static Data
 -----------------------------------------------------------------------------
@@ -348,9 +353,10 @@ data GlobalReg
 	 )
 
 -- convenient aliases
-spReg, hpReg, nodeReg :: CmmReg
+spReg, hpReg, spLimReg, nodeReg :: CmmReg
 spReg = CmmGlobal Sp
 hpReg = CmmGlobal Hp
+spLimReg = CmmGlobal SpLim
 nodeReg = CmmGlobal node
 
 node :: GlobalReg