X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fghci%2FByteCodeInstr.lhs;h=84472f24ac8d16b63cca2afc61af406045572d79;hb=ee26207114635c480dbc7518c0510545a6f62611;hp=5239139eb2234d60440a771d7e4314e36772d4c9;hpb=7cca410a40cccf0fbeda2155f307baa5619b8130;p=ghc-hetmet.git

diff --git a/compiler/ghci/ByteCodeInstr.lhs b/compiler/ghci/ByteCodeInstr.lhs
index 5239139..84472f2 100644
--- a/compiler/ghci/ByteCodeInstr.lhs
+++ b/compiler/ghci/ByteCodeInstr.lhs
@@ -4,8 +4,10 @@
 ByteCodeInstrs: Bytecode instruction definitions
 
 \begin{code}
+{-# OPTIONS_GHC -funbox-strict-fields #-}
+
 module ByteCodeInstr ( 
- 	BCInstr(..), ProtoBCO(..), bciStackUse
+ 	BCInstr(..), ProtoBCO(..), bciStackUse, BreakInfo (..) 
   ) where
 
 #include "HsVersions.h"
@@ -13,6 +15,7 @@ module ByteCodeInstr (
 
 import ByteCodeItbls	( ItblPtr )
 
+import Type
 import Outputable
 import Name
 import Id
@@ -24,7 +27,9 @@ import VarSet
 import PrimOp
 import SMRep
 
-import GHC.Ptr
+import Module (Module)
+import GHC.Exts
+
 
 -- ----------------------------------------------------------------------------
 -- Bytecode instructions
@@ -50,9 +55,9 @@ data BCInstr
    = STKCHECK  Int
 
    -- Push locals (existing bits of the stack)
-   | PUSH_L    Int{-offset-}
-   | PUSH_LL   Int Int{-2 offsets-}
-   | PUSH_LLL  Int Int Int{-3 offsets-}
+   | PUSH_L    !Int{-offset-}
+   | PUSH_LL   !Int !Int{-2 offsets-}
+   | PUSH_LLL  !Int !Int !Int{-3 offsets-}
 
    -- Push a ptr  (these all map to PUSH_G really)
    | PUSH_G       Name
@@ -90,12 +95,13 @@ data BCInstr
    | SLIDE     Int{-this many-} Int{-down by this much-}
 
    -- To do with the heap
-   | ALLOC_AP  Int	-- make an AP with this many payload words
-   | ALLOC_PAP Int Int	-- make a PAP with this arity / payload words
-   | MKAP      Int{-ptr to AP is this far down stack-} Int{-# words-}
-   | MKPAP     Int{-ptr to PAP is this far down stack-} Int{-# words-}
-   | UNPACK    Int	-- unpack N words from t.o.s Constr
-   | PACK      DataCon Int
+   | ALLOC_AP  !Int	 -- make an AP with this many payload words
+   | ALLOC_AP_NOUPD !Int -- make an AP_NOUPD with this many payload words
+   | ALLOC_PAP !Int !Int -- make a PAP with this arity / payload words
+   | MKAP      !Int{-ptr to AP is this far down stack-} !Int{-number of words-}
+   | MKPAP     !Int{-ptr to PAP is this far down stack-} !Int{-number of words-}
+   | UNPACK    !Int	-- unpack N words from t.o.s Constr
+   | PACK      DataCon !Int
 			-- after assembly, the DataCon is an index into the
 			-- itbl array
    -- For doing case trees
@@ -116,7 +122,7 @@ data BCInstr
    | CASEFAIL
    | JMP              LocalLabel
 
-   -- For doing calls to C (via glue code generated by ByteCodeFFI)
+   -- For doing calls to C (via glue code generated by ByteCodeFFI, or libffi)
    | CCALL            Int 	-- stack frame size
 		      (Ptr ())  -- addr of the glue code
 
@@ -129,6 +135,24 @@ data BCInstr
    | RETURN		-- return a lifted value
    | RETURN_UBX CgRep -- return an unlifted value, here's its rep
 
+   -- Breakpoints 
+   | BRK_FUN          (MutableByteArray# RealWorld) Int BreakInfo
+
+data BreakInfo 
+   = BreakInfo
+   { breakInfo_module :: Module
+   , breakInfo_number :: {-# UNPACK #-} !Int
+   , breakInfo_vars   :: [(Id,Int)]
+   , breakInfo_resty  :: Type
+   }
+
+instance Outputable BreakInfo where
+   ppr info = text "BreakInfo" <+>
+              parens (ppr (breakInfo_module info) <+>
+                      ppr (breakInfo_number info) <+>
+                      ppr (breakInfo_vars info) <+>
+                      ppr (breakInfo_resty info))
+
 -- -----------------------------------------------------------------------------
 -- Printing bytecode instructions
 
@@ -170,6 +194,7 @@ instance Outputable BCInstr where
 
    ppr (SLIDE n d)           = text "SLIDE   " <+> int n <+> int d
    ppr (ALLOC_AP sz)         = text "ALLOC_AP   " <+> int sz
+   ppr (ALLOC_AP_NOUPD sz)   = text "ALLOC_AP_NOUPD   " <+> int sz
    ppr (ALLOC_PAP arity sz)  = text "ALLOC_PAP   " <+> int arity <+> int sz
    ppr (MKAP offset sz)      = text "MKAP    " <+> int sz <+> text "words," 
                                                <+> int offset <+> text "stkoff"
@@ -196,6 +221,7 @@ instance Outputable BCInstr where
    ppr ENTER                 = text "ENTER"
    ppr RETURN		     = text "RETURN"
    ppr (RETURN_UBX pk)       = text "RETURN_UBX  " <+> ppr pk
+   ppr (BRK_FUN _breakArray index info) = text "BRK_FUN" <+> text "<array>" <+> int index <+> ppr info 
 
 -- -----------------------------------------------------------------------------
 -- The stack use, in words, of each bytecode insn.  These _must_ be
@@ -233,6 +259,7 @@ bciStackUse PUSH_APPLY_PPPP{}	  = 1
 bciStackUse PUSH_APPLY_PPPPP{}	  = 1
 bciStackUse PUSH_APPLY_PPPPPP{}	  = 1
 bciStackUse ALLOC_AP{}            = 1
+bciStackUse ALLOC_AP_NOUPD{}      = 1
 bciStackUse ALLOC_PAP{}           = 1
 bciStackUse (UNPACK sz)           = sz
 bciStackUse LABEL{}       	  = 0
@@ -251,6 +278,7 @@ bciStackUse RETURN{}		  = 0
 bciStackUse RETURN_UBX{}	  = 1
 bciStackUse CCALL{} 		  = 0
 bciStackUse SWIZZLE{}    	  = 0
+bciStackUse BRK_FUN{}    	  = 0
 
 -- These insns actually reduce stack use, but we need the high-tide level,
 -- so can't use this info.  Not that it matters much.