X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fghci%2FByteCodeInstr.lhs;h=1d629c0643b7bbf6a70722f69c4d19ba98443e5c;hb=7510eeadaf490f7e7f6c9ab3f06ca500c1d95cc0;hp=2393f21f8eb888b6899eaf1a01b9edbb0aafacc3;hpb=fb80639a87dcd7c6e08bd4a5d5a509d8098e9fe6;p=ghc-hetmet.git diff --git a/compiler/ghci/ByteCodeInstr.lhs b/compiler/ghci/ByteCodeInstr.lhs index 2393f21..1d629c0 100644 --- a/compiler/ghci/ByteCodeInstr.lhs +++ b/compiler/ghci/ByteCodeInstr.lhs @@ -5,6 +5,14 @@ ByteCodeInstrs: Bytecode instruction definitions \begin{code} {-# OPTIONS_GHC -funbox-strict-fields #-} + +{-# OPTIONS -w #-} +-- The above warning supression flag is a temporary kludge. +-- While working on this module you are encouraged to remove it and fix +-- any warnings in the module. See +-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings +-- for details + module ByteCodeInstr ( BCInstr(..), ProtoBCO(..), bciStackUse, BreakInfo (..) ) where @@ -29,7 +37,7 @@ import SMRep import GHC.Ptr import Module (Module) -import GHC.Prim +import GHC.Exts -- ---------------------------------------------------------------------------- @@ -96,8 +104,9 @@ 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 + | 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{-# words-} | MKPAP !Int{-ptr to PAP is this far down stack-} !Int{-# words-} | UNPACK !Int -- unpack N words from t.o.s Constr @@ -122,7 +131,7 @@ 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 @@ -194,6 +203,7 @@ 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" @@ -258,6 +268,7 @@ 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