getAmodeRep,
mixedTypeLocn, mixedPtrLocn,
flattenAbsC,
- mkAbsCStmtList
-
+ mkAbsCStmtList,
+ shimFCallArg
-- printing/forcing stuff comes from PprAbsC
) where
#include "HsVersions.h"
+#include "../includes/config.h"
import AbsCSyn
+import Type ( tyConAppTyCon, repType )
+import TysPrim ( foreignObjPrimTyCon, arrayPrimTyCon,
+ byteArrayPrimTyCon, mutableByteArrayPrimTyCon,
+ mutableArrayPrimTyCon )
+import CLabel ( mkMAP_FROZEN_infoLabel )
import Digraph ( stronglyConnComp, SCC(..) )
-import DataCon ( fIRST_TAG, ConTag )
-import Const ( literalPrimRep, mkMachWord )
+import DataCon ( fIRST_TAG, dataConTag )
+import Literal ( literalPrimRep, mkMachWord, mkMachInt )
import PrimRep ( getPrimRepSize, PrimRep(..) )
+import PrimOp ( PrimOp(..) )
+import MachOp ( MachOp(..), isDefinitelyInlineMachOp )
import Unique ( Unique{-instance Eq-} )
import UniqSupply ( uniqFromSupply, uniqsFromSupply, splitUniqSupply,
UniqSupply )
-import CmdLineOpts ( opt_ProduceC, opt_EmitCExternDecls )
-import Maybes ( maybeToBool )
-import PrimOp ( PrimOp(..) )
+import CmdLineOpts ( opt_EmitCExternDecls, opt_Unregisterised )
+import ForeignCall ( ForeignCall(..), CCallSpec(..), isDynamicTarget )
+import StgSyn ( StgOp(..), stgArgType )
+import CoreSyn ( AltCon(..) )
+import SMRep ( arrPtrsHdrSize, arrWordsHdrSize, fixedHdrSize )
+import Outputable
import Panic ( panic )
+import FastTypes
+import Constants ( wORD_SIZE, wORD_SIZE_IN_BITS )
infixr 9 `thenFlt`
\end{code}
\end{code}
\begin{code}
-mkAlgAltsCSwitch :: CAddrMode -> [(ConTag, AbstractC)] -> AbstractC -> AbstractC
+mkAlgAltsCSwitch :: CAddrMode -> [(AltCon, AbstractC)] -> AbstractC
-mkAlgAltsCSwitch scrutinee tagged_alts deflt_absc
- = CSwitch scrutinee (adjust tagged_alts) deflt_absc
+mkAlgAltsCSwitch scrutinee ((_,first_alt) : rest_alts)
+ = CSwitch scrutinee (adjust rest_alts) first_alt
where
+ -- We use the first alt as the default. Either it *is* the DEFAULT,
+ -- (which is always first if present), or the case is exhaustive,
+ -- in which case we can use the first as the default anyway
+
-- Adjust the tags in the switch to start at zero.
-- This is the convention used by primitive ops which return algebraic
-- data types. Why? Because for two-constructor types, zero is faster
-- We also need to convert to Literals to keep the CSwitch happy
adjust tagged_alts
- = [ (mkMachWord (toInteger (tag - fIRST_TAG)), abs_c)
- | (tag, abs_c) <- tagged_alts ]
+ = [ (mkMachWord (toInteger (dataConTag dc - fIRST_TAG)), abs_c)
+ | (DataAlt dc, abs_c) <- tagged_alts ]
\end{code}
%************************************************************************
magicIdPrimRep (DoubleReg _) = DoubleRep
magicIdPrimRep (LongReg kind _) = kind
magicIdPrimRep Sp = PtrRep
-magicIdPrimRep Su = PtrRep
magicIdPrimRep SpLim = PtrRep
magicIdPrimRep Hp = PtrRep
magicIdPrimRep HpLim = PtrRep
magicIdPrimRep CurCostCentre = CostCentreRep
magicIdPrimRep VoidReg = VoidRep
+magicIdPrimRep CurrentTSO = PtrRep
+magicIdPrimRep CurrentNursery = PtrRep
+magicIdPrimRep HpAlloc = WordRep
\end{code}
%************************************************************************
getAmodeRep (CCharLike _) = PtrRep
getAmodeRep (CIntLike _) = PtrRep
getAmodeRep (CLit lit) = literalPrimRep lit
-getAmodeRep (CLitLit _ kind) = kind
getAmodeRep (CMacroExpr kind _ _) = kind
getAmodeRep (CJoinPoint _) = panic "getAmodeRep:CJoinPoint"
\end{code}
getUniqFlt :: FlatM Unique
getUniqFlt us = uniqFromSupply us
-getUniqsFlt :: Int -> FlatM [Unique]
-getUniqsFlt i us = uniqsFromSupply i us
+getUniqsFlt :: FlatM [Unique]
+getUniqsFlt us = uniqsFromSupply us
\end{code}
%************************************************************************
returnFlt (mkAbsCStmts inline_s1 inline_s2,
mkAbsCStmts top_s1 top_s2)
-flatAbsC (CClosureInfoAndCode cl_info slow maybe_fast descr)
- = flatAbsC slow `thenFlt` \ (slow_heres, slow_tops) ->
- flat_maybe maybe_fast `thenFlt` \ (fast_heres, fast_tops) ->
- returnFlt (AbsCNop, mkAbstractCs [slow_tops, fast_tops,
- CClosureInfoAndCode cl_info slow_heres fast_heres descr]
+flatAbsC (CClosureInfoAndCode cl_info entry)
+ = flatAbsC entry `thenFlt` \ (entry_heres, entry_tops) ->
+ returnFlt (AbsCNop, mkAbstractCs [entry_tops,
+ CClosureInfoAndCode cl_info entry_heres]
)
flatAbsC (CCodeBlock lbl abs_C)
= flatAbsC absC `thenFlt` \ (alt_heres, alt_tops) ->
returnFlt ( (tag, alt_heres), alt_tops )
-flatAbsC stmt@(COpStmt results td@(CCallOp _ _ _ _) args vol_regs)
- | isCandidate && maybeToBool opt_ProduceC
- = returnFlt (stmt, tdef)
+flatAbsC stmt@(COpStmt results (StgFCallOp (CCall ccall@(CCallSpec target _ _)) uniq) args _)
+ | is_dynamic -- Emit a typedef if its a dynamic call
+ || (opt_EmitCExternDecls) -- or we want extern decls
+ = returnFlt (stmt, CCallTypedef is_dynamic ccall uniq results args)
where
- (isCandidate, isDyn) =
- case td of
- CCallOp (Right _) _ _ _ -> (True, True)
- CCallOp (Left _) is_asm _ _ -> (opt_EmitCExternDecls && not is_asm, False)
- _ -> (False, False)
-
- tdef = CCallTypedef isDyn td results args
+ is_dynamic = isDynamicTarget target
flatAbsC stmt@(CSimultaneous abs_c)
= flatAbsC abs_c `thenFlt` \ (stmts_here, tops) ->
-- the TICKY_CTR macro always needs to be hoisted out to the top level.
-- This is a HACK.
flatAbsC stmt@(CCallProfCtrMacro str amodes)
- | str == SLIT("TICK_CTR") = returnFlt (AbsCNop, stmt)
+ | str == FSLIT("TICK_CTR") = returnFlt (AbsCNop, stmt)
| otherwise = returnFlt (stmt, AbsCNop)
-- Some statements need no flattening at all:
-flatAbsC stmt@(CMacroStmt macro amodes) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CCallProfCCMacro str amodes) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CAssign dest source) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CJump target) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CFallThrough target) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CReturn target return_info) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(CInitHdr a b cc) = returnFlt (stmt, AbsCNop)
-flatAbsC stmt@(COpStmt results op args vol_regs)= returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CMacroStmt macro amodes) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CCallProfCCMacro str amodes) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CAssign dest source) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CJump target) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CFallThrough target) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CReturn target return_info) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CInitHdr a b cc sz) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(CMachOpStmt res mop args m_vols) = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(COpStmt results (StgFCallOp _ _) args vol_regs)
+ = returnFlt (stmt, AbsCNop)
+flatAbsC stmt@(COpStmt results (StgPrimOp op) args vol_regs)
+ = dscCOpStmt (filter non_void_amode results) op
+ (filter non_void_amode args) vol_regs
+ `thenFlt` \ simpl ->
+ case simpl of
+ COpStmt _ _ _ _ -> panic "flatAbsC - dscCOpStmt" -- make sure we don't loop!
+ other -> flatAbsC other
+ {-
+ A gruesome hack for printing the names of inline primops when they
+ are used.
+ oink other
+ where
+ oink xxx
+ = getUniqFlt `thenFlt` \ uu ->
+ flatAbsC (CSequential [moo uu (showSDoc (ppr op)), xxx])
+
+ moo uu op_str
+ = COpStmt
+ []
+ (StgFCallOp
+ (CCall (CCallSpec (CasmTarget (mkFastString (mktxt op_str)))
+ defaultCCallConv (PlaySafe False)))
+ uu
+ )
+ [CReg VoidReg]
+ []
+ mktxt op_str
+ = " asm(\"pushal;\"); printf(\"%%s\\n\",\"" ++ op_str ++ "\"); asm(\"popal\"); "
+ -}
+
+flatAbsC (CSequential abcs)
+ = mapAndUnzipFlt flatAbsC abcs `thenFlt` \ (inlines, tops) ->
+ returnFlt (CSequential inlines, foldr AbsCStmts AbsCNop tops)
+
-- Some statements only make sense at the top level, so we always float
-- them. This probably isn't necessary.
-flatAbsC stmt@(CStaticClosure _ _ _ _) = returnFlt (AbsCNop, stmt)
+flatAbsC stmt@(CStaticClosure _ _ _ _) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CClosureTbl _) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CSRT _ _) = returnFlt (AbsCNop, stmt)
-flatAbsC stmt@(CBitmap _ _) = returnFlt (AbsCNop, stmt)
+flatAbsC stmt@(CSRTDesc _ _ _ _ _) = returnFlt (AbsCNop, stmt)
+flatAbsC stmt@(CBitmap _) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CCostCentreDecl _ _) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CCostCentreStackDecl _) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CSplitMarker) = returnFlt (AbsCNop, stmt)
flatAbsC stmt@(CRetVector _ _ _ _) = returnFlt (AbsCNop, stmt)
-flatAbsC stmt@(CModuleInitBlock _ _) = returnFlt (AbsCNop, stmt)
-\end{code}
-
-\begin{code}
-flat_maybe :: Maybe AbstractC -> FlatM (Maybe AbstractC, AbstractC)
-flat_maybe Nothing = returnFlt (Nothing, AbsCNop)
-flat_maybe (Just abs_c) = flatAbsC abs_c `thenFlt` \ (heres, tops) ->
- returnFlt (Just heres, tops)
+flatAbsC stmt@(CModuleInitBlock _ _ _) = returnFlt (AbsCNop, stmt)
\end{code}
%************************************************************************
type CVertex = (Int, AbstractC) -- Give each vertex a unique number,
-- for fast comparison
-type CEdge = (CVertex, CVertex)
-
doSimultaneously abs_c
= let
enlisted = en_list abs_c
-- At the moment we put in just enough to catch the cases we want:
-- the second (destination) argument is always a CVal.
sameAmode (CReg r1) (CReg r2) = r1 == r2
-sameAmode (CVal (SpRel r1) _) (CVal (SpRel r2) _) = r1 _EQ_ r2
+sameAmode (CVal (SpRel r1) _) (CVal (SpRel r2) _) = r1 ==# r2
sameAmode other1 other2 = False
doSimultaneously1 :: [CVertex] -> FlatM AbstractC
returnFlt (CAssign the_temp src, CAssign dest the_temp)
go_via_temps (COpStmt dests op srcs vol_regs)
- = getUniqsFlt (length dests) `thenFlt` \ uniqs ->
+ = getUniqsFlt `thenFlt` \ uniqs ->
let
the_temps = zipWith (\ u d -> CTemp u (getAmodeRep d)) uniqs dests
in
= or [dest1 `conflictsWith` src2 | src2 <- srcs2]
(COpStmt dests1 _ _ _) `should_follow` (COpStmt _ _ srcs2 _)
= or [dest1 `conflictsWith` src2 | dest1 <- dests1, src2 <- srcs2]
-
--- (COpStmt _ _ _ _ _) `should_follow` (CCallProfCtrMacro _ _) = False
--- (CCallProfCtrMacro _ _) `should_follow` (COpStmt _ _ _ _ _) = False
-
-
\end{code}
-
@conflictsWith@ tells whether an assignment to its first argument will
screw up an access to its second.
regConflictsWithRR :: MagicId -> RegRelative -> Bool
-regConflictsWithRR (VanillaReg k ILIT(1)) (NodeRel _) = True
-
+regConflictsWithRR (VanillaReg k n) (NodeRel _) | n ==# (_ILIT 1) = True
regConflictsWithRR Sp (SpRel _) = True
regConflictsWithRR Hp (HpRel _) = True
regConflictsWithRR _ _ = False
-> RegRelative -> RegRelative -- The two amodes
-> Bool
-rrConflictsWithRR (I# s1) (I# s2) rr1 rr2 = rr rr1 rr2
+rrConflictsWithRR s1b s2b rr1 rr2 = rr rr1 rr2
where
+ s1 = iUnbox s1b
+ s2 = iUnbox s2b
+
rr (SpRel o1) (SpRel o2)
- | s1 _EQ_ ILIT(0) || s2 _EQ_ ILIT(0) = False -- No conflict if either is size zero
- | s1 _EQ_ ILIT(1) && s2 _EQ_ ILIT(1) = o1 _EQ_ o2
- | otherwise = (o1 _ADD_ s1) _GE_ o2 &&
- (o2 _ADD_ s2) _GE_ o1
+ | s1 ==# (_ILIT 0) || s2 ==# (_ILIT 0) = False -- No conflict if either is size zero
+ | s1 ==# (_ILIT 1) && s2 ==# (_ILIT 1) = o1 ==# o2
+ | otherwise = (o1 +# s1) >=# o2 &&
+ (o2 +# s2) >=# o1
rr (NodeRel o1) (NodeRel o2)
- | s1 _EQ_ ILIT(0) || s2 _EQ_ ILIT(0) = False -- No conflict if either is size zero
- | s1 _EQ_ ILIT(1) && s2 _EQ_ ILIT(1) = o1 _EQ_ o2
+ | s1 ==# (_ILIT 0) || s2 ==# (_ILIT 0) = False -- No conflict if either is size zero
+ | s1 ==# (_ILIT 1) && s2 ==# (_ILIT 1) = o1 ==# o2
| otherwise = True -- Give up
rr (HpRel _) (HpRel _) = True -- Give up (ToDo)
rr other1 other2 = False
\end{code}
+
+%************************************************************************
+%* *
+\subsection[flat-primops]{Translating COpStmts to CMachOpStmts}
+%* *
+%************************************************************************
+
+\begin{code}
+
+-- We begin with some helper functions. The main Dude here is
+-- dscCOpStmt, defined a little further down.
+
+------------------------------------------------------------------------------
+
+-- Assumes no volatiles
+-- Creates
+-- res = arg >> (bits-per-word / 2) when little-endian
+-- or
+-- res = arg & ((1 << (bits-per-word / 2)) - 1) when big-endian
+--
+-- In other words, if arg had been stored in memory, makes res the
+-- halfword of arg which would have had the higher address. This is
+-- why it needs to take into account endianness.
+--
+mkHalfWord_HIADDR res arg
+ = mkTemp WordRep `thenFlt` \ t_hw_mask1 ->
+ mkTemp WordRep `thenFlt` \ t_hw_mask2 ->
+ let
+ hw_shift = mkIntCLit (wORD_SIZE_IN_BITS `quot` 2)
+
+# if WORDS_BIGENDIAN
+ a_hw_mask1
+ = CMachOpStmt t_hw_mask1
+ MO_Nat_Shl [CLit (mkMachWord 1), hw_shift] Nothing
+ a_hw_mask2
+ = CMachOpStmt t_hw_mask2
+ MO_Nat_Sub [t_hw_mask1, CLit (mkMachWord 1)] Nothing
+ final
+ = CSequential [ a_hw_mask1, a_hw_mask2,
+ CMachOpStmt res MO_Nat_And [arg, t_hw_mask2] Nothing
+ ]
+# else
+ final = CMachOpStmt res MO_Nat_Shr [arg, hw_shift] Nothing
+# endif
+ in
+ returnFlt final
+
+
+mkTemp :: PrimRep -> FlatM CAddrMode
+mkTemp rep
+ = getUniqFlt `thenFlt` \ uniq -> returnFlt (CTemp uniq rep)
+
+mkTemps = mapFlt mkTemp
+
+-- Sigh. This is done in 3 seperate places. Should be
+-- commoned up (here, in pprAbsC of COpStmt, and presumably
+-- somewhere in the NCG).
+non_void_amode amode
+ = case getAmodeRep amode of
+ VoidRep -> False
+ k -> True
+
+-- Helpers for translating various minor variants of array indexing.
+
+mkDerefOff :: PrimRep -> CAddrMode -> Int -> CAddrMode
+mkDerefOff rep base off
+ = CVal (CIndex base (CLit (mkMachInt (toInteger off))) rep) rep
+
+mkNoDerefOff :: PrimRep -> CAddrMode -> Int -> CAddrMode
+mkNoDerefOff rep base off
+ = CAddr (CIndex base (CLit (mkMachInt (toInteger off))) rep)
+
+
+-- Generates an address as follows
+-- base + sizeof(machine_word)*offw + sizeof(rep)*idx
+mk_OSBI_addr :: Int -> PrimRep -> CAddrMode -> CAddrMode -> RegRelative
+mk_OSBI_addr offw rep base idx
+ = CIndex (CAddr (CIndex base idx rep))
+ (CLit (mkMachWord (fromIntegral offw)))
+ PtrRep
+
+mk_OSBI_ref :: Int -> PrimRep -> CAddrMode -> CAddrMode -> CAddrMode
+mk_OSBI_ref offw rep base idx
+ = CVal (mk_OSBI_addr offw rep base idx) rep
+
+
+doIndexOffForeignObjOp maybe_post_read_cast rep res addr idx
+ = mkBasicIndexedRead 0 maybe_post_read_cast rep res (mkDerefOff WordRep addr fixedHdrSize) idx
+
+doIndexOffAddrOp maybe_post_read_cast rep res addr idx
+ = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
+
+doIndexByteArrayOp maybe_post_read_cast rep res addr idx
+ = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
+
+doReadPtrArrayOp res addr idx
+ = mkBasicIndexedRead arrPtrsHdrSize Nothing PtrRep res addr idx
+
+
+doWriteOffAddrOp maybe_pre_write_cast rep addr idx val
+ = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
+
+doWriteByteArrayOp maybe_pre_write_cast rep addr idx val
+ = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
+
+doWritePtrArrayOp addr idx val
+ = mkBasicIndexedWrite arrPtrsHdrSize Nothing PtrRep addr idx val
+
+
+
+mkBasicIndexedRead offw Nothing read_rep res base idx
+ = returnFlt (
+ CAssign res (mk_OSBI_ref offw read_rep base idx)
+ )
+mkBasicIndexedRead offw (Just cast_to_mop) read_rep res base idx
+ = mkTemp read_rep `thenFlt` \ tmp ->
+ (returnFlt . CSequential) [
+ CAssign tmp (mk_OSBI_ref offw read_rep base idx),
+ CMachOpStmt res cast_to_mop [tmp] Nothing
+ ]
+
+mkBasicIndexedWrite offw Nothing write_rep base idx val
+ = returnFlt (
+ CAssign (mk_OSBI_ref offw write_rep base idx) val
+ )
+mkBasicIndexedWrite offw (Just cast_to_mop) write_rep base idx val
+ = mkTemp write_rep `thenFlt` \ tmp ->
+ (returnFlt . CSequential) [
+ CMachOpStmt tmp cast_to_mop [val] Nothing,
+ CAssign (mk_OSBI_ref offw write_rep base idx) tmp
+ ]
+
+
+-- Simple dyadic op but one for which we need to cast first arg to
+-- be sure of correctness
+translateOp_dyadic_cast1 mop res cast_arg1_to arg1 arg2 vols
+ = mkTemp cast_arg1_to `thenFlt` \ arg1casted ->
+ (returnFlt . CSequential) [
+ CAssign arg1casted arg1,
+ CMachOpStmt res mop [arg1casted,arg2]
+ (if isDefinitelyInlineMachOp mop then Nothing else Just vols)
+ ]
+
+-- IA64 mangler doesn't place tables next to code
+tablesNextToCode :: Bool
+#ifdef ia64_TARGET_ARCH
+tablesNextToCode = False
+#else
+tablesNextToCode = not opt_Unregisterised
+#endif
+
+------------------------------------------------------------------------------
+
+-- This is the main top-level desugarer PrimOps into MachOps. First we
+-- handle various awkward cases specially. The remaining easy cases are
+-- then handled by translateOp, defined below.
+
+
+dscCOpStmt :: [CAddrMode] -- Results
+ -> PrimOp
+ -> [CAddrMode] -- Arguments
+ -> [MagicId] -- Potentially volatile/live registers
+ -- (to save/restore around the op)
+ -> FlatM AbstractC
+
+
+dscCOpStmt [res_r,res_c] IntAddCOp [aa,bb] vols
+{-
+ With some bit-twiddling, we can define int{Add,Sub}Czh portably in
+ C, and without needing any comparisons. This may not be the
+ fastest way to do it - if you have better code, please send it! --SDM
+
+ Return : r = a + b, c = 0 if no overflow, 1 on overflow.
+
+ We currently don't make use of the r value if c is != 0 (i.e.
+ overflow), we just convert to big integers and try again. This
+ could be improved by making r and c the correct values for
+ plugging into a new J#.
+
+ { r = ((I_)(a)) + ((I_)(b)); \
+ c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
+ >> (BITS_IN (I_) - 1); \
+ }
+ Wading through the mass of bracketry, it seems to reduce to:
+ c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
+
+ SSA-form:
+ t1 = a^b
+ t2 = ~t1
+ t3 = a^r
+ t4 = t2 & t3
+ c = t4 >>unsigned BITS_IN(I_)-1
+-}
+ = mkTemps [IntRep,IntRep,IntRep,IntRep] `thenFlt` \ [t1,t2,t3,t4] ->
+ let bpw1 = mkIntCLit (wORD_SIZE_IN_BITS - 1) in
+ (returnFlt . CSequential) [
+ CMachOpStmt res_r MO_Nat_Add [aa,bb] Nothing,
+ CMachOpStmt t1 MO_Nat_Xor [aa,bb] Nothing,
+ CMachOpStmt t2 MO_Nat_Not [t1] Nothing,
+ CMachOpStmt t3 MO_Nat_Xor [aa,res_r] Nothing,
+ CMachOpStmt t4 MO_Nat_And [t2,t3] Nothing,
+ CMachOpStmt res_c MO_Nat_Shr [t4, bpw1] Nothing
+ ]
+
+
+dscCOpStmt [res_r,res_c] IntSubCOp [aa,bb] vols
+{- Similarly:
+ #define subIntCzh(r,c,a,b) \
+ { r = ((I_)(a)) - ((I_)(b)); \
+ c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
+ >> (BITS_IN (I_) - 1); \
+ }
+
+ c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
+
+ t1 = a^b
+ t2 = a^r
+ t3 = t1 & t2
+ c = t3 >>unsigned BITS_IN(I_)-1
+-}
+ = mkTemps [IntRep,IntRep,IntRep] `thenFlt` \ [t1,t2,t3] ->
+ let bpw1 = mkIntCLit (wORD_SIZE_IN_BITS - 1) in
+ (returnFlt . CSequential) [
+ CMachOpStmt res_r MO_Nat_Sub [aa,bb] Nothing,
+ CMachOpStmt t1 MO_Nat_Xor [aa,bb] Nothing,
+ CMachOpStmt t2 MO_Nat_Xor [aa,res_r] Nothing,
+ CMachOpStmt t3 MO_Nat_And [t1,t2] Nothing,
+ CMachOpStmt res_c MO_Nat_Shr [t3, bpw1] Nothing
+ ]
+
+
+-- #define parzh(r,node) r = 1
+dscCOpStmt [res] ParOp [arg] vols
+ = returnFlt
+ (CAssign res (CLit (mkMachInt 1)))
+
+-- #define readMutVarzh(r,a) r=(P_)(((StgMutVar *)(a))->var)
+dscCOpStmt [res] ReadMutVarOp [mutv] vols
+ = returnFlt
+ (CAssign res (mkDerefOff PtrRep mutv fixedHdrSize))
+
+-- #define writeMutVarzh(a,v) (P_)(((StgMutVar *)(a))->var)=(v)
+dscCOpStmt [] WriteMutVarOp [mutv,var] vols
+ = returnFlt
+ (CAssign (mkDerefOff PtrRep mutv fixedHdrSize) var)
+
+
+-- #define ForeignObj_CLOSURE_DATA(c) (((StgForeignObj *)c)->data)
+-- #define foreignObjToAddrzh(r,fo) r=ForeignObj_CLOSURE_DATA(fo)
+dscCOpStmt [res] ForeignObjToAddrOp [fo] vols
+ = returnFlt
+ (CAssign res (mkDerefOff PtrRep fo fixedHdrSize))
+
+-- #define writeForeignObjzh(res,datum) \
+-- (ForeignObj_CLOSURE_DATA(res) = (P_)(datum))
+dscCOpStmt [] WriteForeignObjOp [fo,addr] vols
+ = returnFlt
+ (CAssign (mkDerefOff PtrRep fo fixedHdrSize) addr)
+
+
+-- #define sizzeofByteArrayzh(r,a) \
+-- r = (((StgArrWords *)(a))->words * sizeof(W_))
+dscCOpStmt [res] SizeofByteArrayOp [arg] vols
+ = mkTemp WordRep `thenFlt` \ w ->
+ (returnFlt . CSequential) [
+ CAssign w (mkDerefOff WordRep arg fixedHdrSize),
+ CMachOpStmt w MO_NatU_Mul [w, mkIntCLit wORD_SIZE] (Just vols),
+ CAssign res w
+ ]
+
+-- #define sizzeofMutableByteArrayzh(r,a) \
+-- r = (((StgArrWords *)(a))->words * sizeof(W_))
+dscCOpStmt [res] SizeofMutableByteArrayOp [arg] vols
+ = dscCOpStmt [res] SizeofByteArrayOp [arg] vols
+
+
+-- #define touchzh(o) /* nothing */
+dscCOpStmt [] TouchOp [arg] vols
+ = returnFlt AbsCNop
+
+-- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
+dscCOpStmt [res] ByteArrayContents_Char [arg] vols
+ = mkTemp PtrRep `thenFlt` \ ptr ->
+ (returnFlt . CSequential) [
+ CMachOpStmt ptr MO_NatU_to_NatP [arg] Nothing,
+ CAssign ptr (mkNoDerefOff WordRep ptr arrWordsHdrSize),
+ CAssign res ptr
+ ]
+
+-- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
+dscCOpStmt [res] StableNameToIntOp [arg] vols
+ = returnFlt
+ (CAssign res (mkDerefOff WordRep arg fixedHdrSize))
+
+-- #define eqStableNamezh(r,sn1,sn2) \
+-- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
+dscCOpStmt [res] EqStableNameOp [arg1,arg2] vols
+ = mkTemps [WordRep, WordRep] `thenFlt` \ [sn1,sn2] ->
+ (returnFlt . CSequential) [
+ CAssign sn1 (mkDerefOff WordRep arg1 fixedHdrSize),
+ CAssign sn2 (mkDerefOff WordRep arg2 fixedHdrSize),
+ CMachOpStmt res MO_Nat_Eq [sn1,sn2] Nothing
+ ]
+
+dscCOpStmt [res] ReallyUnsafePtrEqualityOp [arg1,arg2] vols
+ = mkTemps [WordRep, WordRep] `thenFlt` \ [w1,w2] ->
+ (returnFlt . CSequential) [
+ CMachOpStmt w1 MO_NatP_to_NatU [arg1] Nothing,
+ CMachOpStmt w2 MO_NatP_to_NatU [arg2] Nothing,
+ CMachOpStmt res MO_Nat_Eq [w1,w2] Nothing{- because it's inline? -}
+ ]
+
+-- #define addrToHValuezh(r,a) r=(P_)a
+dscCOpStmt [res] AddrToHValueOp [arg] vols
+ = returnFlt
+ (CAssign res arg)
+
+-- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
+--
+-- In the unregisterised case, we don't attempt to compute the location
+-- of the tag halfword, just a macro. For this build, fixing on layout
+-- info has only got drawbacks.
+--
+-- Should this arrangement deeply offend you for some reason, code which
+-- computes the offset can be found below also.
+-- -- sof 3/02
+--
+dscCOpStmt [res] DataToTagOp [arg] vols
+ | not tablesNextToCode
+ = returnFlt (CMacroStmt DATA_TO_TAGZH [res,arg])
+ | otherwise
+ = mkTemps [PtrRep, WordRep] `thenFlt` \ [t_infoptr, t_theword] ->
+ mkHalfWord_HIADDR res t_theword `thenFlt` \ select_ops ->
+ (returnFlt . CSequential) [
+ CAssign t_infoptr (mkDerefOff PtrRep arg 0),
+ {-
+ Get at the tag within the info table; two cases to consider:
+
+ - reversed info tables next to the entry point code;
+ one word above the end of the info table (which is
+ what t_infoptr is really pointing to).
+ - info tables with their entry points stored somewhere else,
+ which is how the unregisterised (nee TABLES_NEXT_TO_CODE)
+ world operates.
+
+ The t_infoptr points to the start of the info table, so add
+ the length of the info table & subtract one word.
+ -}
+ CAssign t_theword (mkDerefOff WordRep t_infoptr (-1)),
+{- UNUSED - see above comment.
+ (if opt_Unregisterised then
+ (fixedItblSize - 1)
+ else (-1))),
+-}
+ select_ops
+ ]
+
+
+{- Freezing arrays-of-ptrs requires changing an info table, for the
+ benefit of the generational collector. It needs to scavenge mutable
+ objects, even if they are in old space. When they become immutable,
+ they can be removed from this scavenge list. -}
+
+-- #define unsafeFreezzeArrayzh(r,a) \
+-- { \
+-- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN_info); \
+-- r = a; \
+-- }
+dscCOpStmt [res] UnsafeFreezeArrayOp [arg] vols
+ = (returnFlt . CSequential) [
+ CAssign (mkDerefOff PtrRep arg 0) (CLbl mkMAP_FROZEN_infoLabel PtrRep),
+ CAssign res arg
+ ]
+
+-- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
+dscCOpStmt [res] UnsafeFreezeByteArrayOp [arg] vols
+ = returnFlt
+ (CAssign res arg)
+
+-- This ought to be trivial, but it's difficult to insert the casts
+-- required to keep the C compiler happy.
+dscCOpStmt [r] AddrRemOp [a1,a2] vols
+ = mkTemp WordRep `thenFlt` \ a1casted ->
+ (returnFlt . CSequential) [
+ CMachOpStmt a1casted MO_NatP_to_NatU [a1] Nothing,
+ CMachOpStmt r MO_NatU_Rem [a1casted,a2] Nothing
+ ]
+
+-- not handled by translateOp because they need casts
+dscCOpStmt [r] SllOp [a1,a2] vols
+ = translateOp_dyadic_cast1 MO_Nat_Shl r WordRep a1 a2 vols
+dscCOpStmt [r] SrlOp [a1,a2] vols
+ = translateOp_dyadic_cast1 MO_Nat_Shr r WordRep a1 a2 vols
+
+dscCOpStmt [r] ISllOp [a1,a2] vols
+ = translateOp_dyadic_cast1 MO_Nat_Shl r IntRep a1 a2 vols
+dscCOpStmt [r] ISrlOp [a1,a2] vols
+ = translateOp_dyadic_cast1 MO_Nat_Shr r IntRep a1 a2 vols
+dscCOpStmt [r] ISraOp [a1,a2] vols
+ = translateOp_dyadic_cast1 MO_Nat_Sar r IntRep a1 a2 vols
+
+-- Reading/writing pointer arrays
+
+dscCOpStmt [r] ReadArrayOp [obj,ix] vols = doReadPtrArrayOp r obj ix
+dscCOpStmt [r] IndexArrayOp [obj,ix] vols = doReadPtrArrayOp r obj ix
+dscCOpStmt [] WriteArrayOp [obj,ix,v] vols = doWritePtrArrayOp obj ix v
+
+-- IndexXXXoffForeignObj
+
+dscCOpStmt [r] IndexOffForeignObjOp_Char [a,i] vols = doIndexOffForeignObjOp (Just MO_8U_to_32U) Word8Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_WideChar [a,i] vols = doIndexOffForeignObjOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Int [a,i] vols = doIndexOffForeignObjOp Nothing IntRep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Word [a,i] vols = doIndexOffForeignObjOp Nothing WordRep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Addr [a,i] vols = doIndexOffForeignObjOp Nothing AddrRep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Float [a,i] vols = doIndexOffForeignObjOp Nothing FloatRep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Double [a,i] vols = doIndexOffForeignObjOp Nothing DoubleRep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_StablePtr [a,i] vols = doIndexOffForeignObjOp Nothing StablePtrRep r a i
+
+dscCOpStmt [r] IndexOffForeignObjOp_Int8 [a,i] vols = doIndexOffForeignObjOp Nothing Int8Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Int16 [a,i] vols = doIndexOffForeignObjOp Nothing Int16Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Int32 [a,i] vols = doIndexOffForeignObjOp Nothing Int32Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Int64 [a,i] vols = doIndexOffForeignObjOp Nothing Int64Rep r a i
+
+dscCOpStmt [r] IndexOffForeignObjOp_Word8 [a,i] vols = doIndexOffForeignObjOp Nothing Word8Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Word16 [a,i] vols = doIndexOffForeignObjOp Nothing Word16Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Word32 [a,i] vols = doIndexOffForeignObjOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexOffForeignObjOp_Word64 [a,i] vols = doIndexOffForeignObjOp Nothing Word64Rep r a i
+
+-- IndexXXXoffAddr
+
+dscCOpStmt [r] IndexOffAddrOp_Char [a,i] vols = doIndexOffAddrOp (Just MO_8U_to_32U) Word8Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_WideChar [a,i] vols = doIndexOffAddrOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Int [a,i] vols = doIndexOffAddrOp Nothing IntRep r a i
+dscCOpStmt [r] IndexOffAddrOp_Word [a,i] vols = doIndexOffAddrOp Nothing WordRep r a i
+dscCOpStmt [r] IndexOffAddrOp_Addr [a,i] vols = doIndexOffAddrOp Nothing AddrRep r a i
+dscCOpStmt [r] IndexOffAddrOp_Float [a,i] vols = doIndexOffAddrOp Nothing FloatRep r a i
+dscCOpStmt [r] IndexOffAddrOp_Double [a,i] vols = doIndexOffAddrOp Nothing DoubleRep r a i
+dscCOpStmt [r] IndexOffAddrOp_StablePtr [a,i] vols = doIndexOffAddrOp Nothing StablePtrRep r a i
+
+dscCOpStmt [r] IndexOffAddrOp_Int8 [a,i] vols = doIndexOffAddrOp Nothing Int8Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Int16 [a,i] vols = doIndexOffAddrOp Nothing Int16Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Int32 [a,i] vols = doIndexOffAddrOp Nothing Int32Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Int64 [a,i] vols = doIndexOffAddrOp Nothing Int64Rep r a i
+
+dscCOpStmt [r] IndexOffAddrOp_Word8 [a,i] vols = doIndexOffAddrOp Nothing Word8Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Word16 [a,i] vols = doIndexOffAddrOp Nothing Word16Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Word32 [a,i] vols = doIndexOffAddrOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexOffAddrOp_Word64 [a,i] vols = doIndexOffAddrOp Nothing Word64Rep r a i
+
+-- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
+
+dscCOpStmt [r] ReadOffAddrOp_Char [a,i] vols = doIndexOffAddrOp (Just MO_8U_to_32U) Word8Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_WideChar [a,i] vols = doIndexOffAddrOp Nothing Word32Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Int [a,i] vols = doIndexOffAddrOp Nothing IntRep r a i
+dscCOpStmt [r] ReadOffAddrOp_Word [a,i] vols = doIndexOffAddrOp Nothing WordRep r a i
+dscCOpStmt [r] ReadOffAddrOp_Addr [a,i] vols = doIndexOffAddrOp Nothing AddrRep r a i
+dscCOpStmt [r] ReadOffAddrOp_Float [a,i] vols = doIndexOffAddrOp Nothing FloatRep r a i
+dscCOpStmt [r] ReadOffAddrOp_Double [a,i] vols = doIndexOffAddrOp Nothing DoubleRep r a i
+dscCOpStmt [r] ReadOffAddrOp_StablePtr [a,i] vols = doIndexOffAddrOp Nothing StablePtrRep r a i
+
+dscCOpStmt [r] ReadOffAddrOp_Int8 [a,i] vols = doIndexOffAddrOp Nothing Int8Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Int16 [a,i] vols = doIndexOffAddrOp Nothing Int16Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Int32 [a,i] vols = doIndexOffAddrOp Nothing Int32Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Int64 [a,i] vols = doIndexOffAddrOp Nothing Int64Rep r a i
+
+dscCOpStmt [r] ReadOffAddrOp_Word8 [a,i] vols = doIndexOffAddrOp Nothing Word8Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Word16 [a,i] vols = doIndexOffAddrOp Nothing Word16Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Word32 [a,i] vols = doIndexOffAddrOp Nothing Word32Rep r a i
+dscCOpStmt [r] ReadOffAddrOp_Word64 [a,i] vols = doIndexOffAddrOp Nothing Word64Rep r a i
+
+-- IndexXXXArray
+
+dscCOpStmt [r] IndexByteArrayOp_Char [a,i] vols = doIndexByteArrayOp (Just MO_8U_to_32U) Word8Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_WideChar [a,i] vols = doIndexByteArrayOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Int [a,i] vols = doIndexByteArrayOp Nothing IntRep r a i
+dscCOpStmt [r] IndexByteArrayOp_Word [a,i] vols = doIndexByteArrayOp Nothing WordRep r a i
+dscCOpStmt [r] IndexByteArrayOp_Addr [a,i] vols = doIndexByteArrayOp Nothing AddrRep r a i
+dscCOpStmt [r] IndexByteArrayOp_Float [a,i] vols = doIndexByteArrayOp Nothing FloatRep r a i
+dscCOpStmt [r] IndexByteArrayOp_Double [a,i] vols = doIndexByteArrayOp Nothing DoubleRep r a i
+dscCOpStmt [r] IndexByteArrayOp_StablePtr [a,i] vols = doIndexByteArrayOp Nothing StablePtrRep r a i
+
+dscCOpStmt [r] IndexByteArrayOp_Int8 [a,i] vols = doIndexByteArrayOp Nothing Int8Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Int16 [a,i] vols = doIndexByteArrayOp Nothing Int16Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Int32 [a,i] vols = doIndexByteArrayOp Nothing Int32Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Int64 [a,i] vols = doIndexByteArrayOp Nothing Int64Rep r a i
+
+dscCOpStmt [r] IndexByteArrayOp_Word8 [a,i] vols = doIndexByteArrayOp Nothing Word8Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Word16 [a,i] vols = doIndexByteArrayOp Nothing Word16Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Word32 [a,i] vols = doIndexByteArrayOp Nothing Word32Rep r a i
+dscCOpStmt [r] IndexByteArrayOp_Word64 [a,i] vols = doIndexByteArrayOp Nothing Word64Rep r a i
+
+-- ReadXXXArray, identical to IndexXXXArray.
+
+dscCOpStmt [r] ReadByteArrayOp_Char [a,i] vols = doIndexByteArrayOp (Just MO_8U_to_32U) Word8Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_WideChar [a,i] vols = doIndexByteArrayOp Nothing Word32Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Int [a,i] vols = doIndexByteArrayOp Nothing IntRep r a i
+dscCOpStmt [r] ReadByteArrayOp_Word [a,i] vols = doIndexByteArrayOp Nothing WordRep r a i
+dscCOpStmt [r] ReadByteArrayOp_Addr [a,i] vols = doIndexByteArrayOp Nothing AddrRep r a i
+dscCOpStmt [r] ReadByteArrayOp_Float [a,i] vols = doIndexByteArrayOp Nothing FloatRep r a i
+dscCOpStmt [r] ReadByteArrayOp_Double [a,i] vols = doIndexByteArrayOp Nothing DoubleRep r a i
+dscCOpStmt [r] ReadByteArrayOp_StablePtr [a,i] vols = doIndexByteArrayOp Nothing StablePtrRep r a i
+
+dscCOpStmt [r] ReadByteArrayOp_Int8 [a,i] vols = doIndexByteArrayOp Nothing Int8Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Int16 [a,i] vols = doIndexByteArrayOp Nothing Int16Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Int32 [a,i] vols = doIndexByteArrayOp Nothing Int32Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Int64 [a,i] vols = doIndexByteArrayOp Nothing Int64Rep r a i
+
+dscCOpStmt [r] ReadByteArrayOp_Word8 [a,i] vols = doIndexByteArrayOp Nothing Word8Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Word16 [a,i] vols = doIndexByteArrayOp Nothing Word16Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Word32 [a,i] vols = doIndexByteArrayOp Nothing Word32Rep r a i
+dscCOpStmt [r] ReadByteArrayOp_Word64 [a,i] vols = doIndexByteArrayOp Nothing Word64Rep r a i
+
+-- WriteXXXoffAddr
+
+dscCOpStmt [] WriteOffAddrOp_Char [a,i,x] vols = doWriteOffAddrOp (Just MO_32U_to_8U) Word8Rep a i x
+dscCOpStmt [] WriteOffAddrOp_WideChar [a,i,x] vols = doWriteOffAddrOp Nothing Word32Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Int [a,i,x] vols = doWriteOffAddrOp Nothing IntRep a i x
+dscCOpStmt [] WriteOffAddrOp_Word [a,i,x] vols = doWriteOffAddrOp Nothing WordRep a i x
+dscCOpStmt [] WriteOffAddrOp_Addr [a,i,x] vols = doWriteOffAddrOp Nothing AddrRep a i x
+dscCOpStmt [] WriteOffAddrOp_Float [a,i,x] vols = doWriteOffAddrOp Nothing FloatRep a i x
+dscCOpStmt [] WriteOffAddrOp_ForeignObj [a,i,x] vols = doWriteOffAddrOp Nothing PtrRep a i x
+dscCOpStmt [] WriteOffAddrOp_Double [a,i,x] vols = doWriteOffAddrOp Nothing DoubleRep a i x
+dscCOpStmt [] WriteOffAddrOp_StablePtr [a,i,x] vols = doWriteOffAddrOp Nothing StablePtrRep a i x
+
+dscCOpStmt [] WriteOffAddrOp_Int8 [a,i,x] vols = doWriteOffAddrOp Nothing Int8Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Int16 [a,i,x] vols = doWriteOffAddrOp Nothing Int16Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Int32 [a,i,x] vols = doWriteOffAddrOp Nothing Int32Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Int64 [a,i,x] vols = doWriteOffAddrOp Nothing Int64Rep a i x
+
+dscCOpStmt [] WriteOffAddrOp_Word8 [a,i,x] vols = doWriteOffAddrOp Nothing Word8Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Word16 [a,i,x] vols = doWriteOffAddrOp Nothing Word16Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Word32 [a,i,x] vols = doWriteOffAddrOp Nothing Word32Rep a i x
+dscCOpStmt [] WriteOffAddrOp_Word64 [a,i,x] vols = doWriteOffAddrOp Nothing Word64Rep a i x
+
+-- WriteXXXArray
+
+dscCOpStmt [] WriteByteArrayOp_Char [a,i,x] vols = doWriteByteArrayOp (Just MO_32U_to_8U) Word8Rep a i x
+dscCOpStmt [] WriteByteArrayOp_WideChar [a,i,x] vols = doWriteByteArrayOp Nothing Word32Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Int [a,i,x] vols = doWriteByteArrayOp Nothing IntRep a i x
+dscCOpStmt [] WriteByteArrayOp_Word [a,i,x] vols = doWriteByteArrayOp Nothing WordRep a i x
+dscCOpStmt [] WriteByteArrayOp_Addr [a,i,x] vols = doWriteByteArrayOp Nothing AddrRep a i x
+dscCOpStmt [] WriteByteArrayOp_Float [a,i,x] vols = doWriteByteArrayOp Nothing FloatRep a i x
+dscCOpStmt [] WriteByteArrayOp_Double [a,i,x] vols = doWriteByteArrayOp Nothing DoubleRep a i x
+dscCOpStmt [] WriteByteArrayOp_StablePtr [a,i,x] vols = doWriteByteArrayOp Nothing StablePtrRep a i x
+
+dscCOpStmt [] WriteByteArrayOp_Int8 [a,i,x] vols = doWriteByteArrayOp Nothing Int8Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Int16 [a,i,x] vols = doWriteByteArrayOp Nothing Int16Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Int32 [a,i,x] vols = doWriteByteArrayOp Nothing Int32Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Int64 [a,i,x] vols = doWriteByteArrayOp Nothing Int64Rep a i x
+
+dscCOpStmt [] WriteByteArrayOp_Word8 [a,i,x] vols = doWriteByteArrayOp Nothing Word8Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Word16 [a,i,x] vols = doWriteByteArrayOp Nothing Word16Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Word32 [a,i,x] vols = doWriteByteArrayOp Nothing Word32Rep a i x
+dscCOpStmt [] WriteByteArrayOp_Word64 [a,i,x] vols = doWriteByteArrayOp Nothing Word64Rep a i x
+
+
+-- Handle all others as simply as possible.
+dscCOpStmt ress op args vols
+ = case translateOp ress op args of
+ Nothing
+ -> pprPanic "dscCOpStmt: can't translate PrimOp" (ppr op)
+ Just (maybe_res, mop, args)
+ -> returnFlt (
+ CMachOpStmt maybe_res mop args
+ (if isDefinitelyInlineMachOp mop then Nothing else Just vols)
+ )
+
+-- Native word signless ops
+
+translateOp [r] IntAddOp [a1,a2] = Just (r, MO_Nat_Add, [a1,a2])
+translateOp [r] IntSubOp [a1,a2] = Just (r, MO_Nat_Sub, [a1,a2])
+translateOp [r] WordAddOp [a1,a2] = Just (r, MO_Nat_Add, [a1,a2])
+translateOp [r] WordSubOp [a1,a2] = Just (r, MO_Nat_Sub, [a1,a2])
+translateOp [r] AddrAddOp [a1,a2] = Just (r, MO_Nat_Add, [a1,a2])
+translateOp [r] AddrSubOp [a1,a2] = Just (r, MO_Nat_Sub, [a1,a2])
+
+translateOp [r] IntEqOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] IntNeOp [a1,a2] = Just (r, MO_Nat_Ne, [a1,a2])
+translateOp [r] WordEqOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] WordNeOp [a1,a2] = Just (r, MO_Nat_Ne, [a1,a2])
+translateOp [r] AddrEqOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] AddrNeOp [a1,a2] = Just (r, MO_Nat_Ne, [a1,a2])
+
+translateOp [r] AndOp [a1,a2] = Just (r, MO_Nat_And, [a1,a2])
+translateOp [r] OrOp [a1,a2] = Just (r, MO_Nat_Or, [a1,a2])
+translateOp [r] XorOp [a1,a2] = Just (r, MO_Nat_Xor, [a1,a2])
+translateOp [r] NotOp [a1] = Just (r, MO_Nat_Not, [a1])
+
+-- Native word signed ops
+
+translateOp [r] IntMulOp [a1,a2] = Just (r, MO_NatS_Mul, [a1,a2])
+translateOp [r] IntMulMayOfloOp [a1,a2] = Just (r, MO_NatS_MulMayOflo, [a1,a2])
+translateOp [r] IntQuotOp [a1,a2] = Just (r, MO_NatS_Quot, [a1,a2])
+translateOp [r] IntRemOp [a1,a2] = Just (r, MO_NatS_Rem, [a1,a2])
+translateOp [r] IntNegOp [a1] = Just (r, MO_NatS_Neg, [a1])
+
+translateOp [r] IntGeOp [a1,a2] = Just (r, MO_NatS_Ge, [a1,a2])
+translateOp [r] IntLeOp [a1,a2] = Just (r, MO_NatS_Le, [a1,a2])
+translateOp [r] IntGtOp [a1,a2] = Just (r, MO_NatS_Gt, [a1,a2])
+translateOp [r] IntLtOp [a1,a2] = Just (r, MO_NatS_Lt, [a1,a2])
+
+
+-- Native word unsigned ops
+
+translateOp [r] WordGeOp [a1,a2] = Just (r, MO_NatU_Ge, [a1,a2])
+translateOp [r] WordLeOp [a1,a2] = Just (r, MO_NatU_Le, [a1,a2])
+translateOp [r] WordGtOp [a1,a2] = Just (r, MO_NatU_Gt, [a1,a2])
+translateOp [r] WordLtOp [a1,a2] = Just (r, MO_NatU_Lt, [a1,a2])
+
+translateOp [r] WordMulOp [a1,a2] = Just (r, MO_NatU_Mul, [a1,a2])
+translateOp [r] WordQuotOp [a1,a2] = Just (r, MO_NatU_Quot, [a1,a2])
+translateOp [r] WordRemOp [a1,a2] = Just (r, MO_NatU_Rem, [a1,a2])
+
+translateOp [r] AddrGeOp [a1,a2] = Just (r, MO_NatU_Ge, [a1,a2])
+translateOp [r] AddrLeOp [a1,a2] = Just (r, MO_NatU_Le, [a1,a2])
+translateOp [r] AddrGtOp [a1,a2] = Just (r, MO_NatU_Gt, [a1,a2])
+translateOp [r] AddrLtOp [a1,a2] = Just (r, MO_NatU_Lt, [a1,a2])
+
+-- 32-bit unsigned ops
+
+translateOp [r] CharEqOp [a1,a2] = Just (r, MO_32U_Eq, [a1,a2])
+translateOp [r] CharNeOp [a1,a2] = Just (r, MO_32U_Ne, [a1,a2])
+translateOp [r] CharGeOp [a1,a2] = Just (r, MO_32U_Ge, [a1,a2])
+translateOp [r] CharLeOp [a1,a2] = Just (r, MO_32U_Le, [a1,a2])
+translateOp [r] CharGtOp [a1,a2] = Just (r, MO_32U_Gt, [a1,a2])
+translateOp [r] CharLtOp [a1,a2] = Just (r, MO_32U_Lt, [a1,a2])
+
+-- Double ops
+
+translateOp [r] DoubleEqOp [a1,a2] = Just (r, MO_Dbl_Eq, [a1,a2])
+translateOp [r] DoubleNeOp [a1,a2] = Just (r, MO_Dbl_Ne, [a1,a2])
+translateOp [r] DoubleGeOp [a1,a2] = Just (r, MO_Dbl_Ge, [a1,a2])
+translateOp [r] DoubleLeOp [a1,a2] = Just (r, MO_Dbl_Le, [a1,a2])
+translateOp [r] DoubleGtOp [a1,a2] = Just (r, MO_Dbl_Gt, [a1,a2])
+translateOp [r] DoubleLtOp [a1,a2] = Just (r, MO_Dbl_Lt, [a1,a2])
+
+translateOp [r] DoubleAddOp [a1,a2] = Just (r, MO_Dbl_Add, [a1,a2])
+translateOp [r] DoubleSubOp [a1,a2] = Just (r, MO_Dbl_Sub, [a1,a2])
+translateOp [r] DoubleMulOp [a1,a2] = Just (r, MO_Dbl_Mul, [a1,a2])
+translateOp [r] DoubleDivOp [a1,a2] = Just (r, MO_Dbl_Div, [a1,a2])
+translateOp [r] DoublePowerOp [a1,a2] = Just (r, MO_Dbl_Pwr, [a1,a2])
+
+translateOp [r] DoubleSinOp [a1] = Just (r, MO_Dbl_Sin, [a1])
+translateOp [r] DoubleCosOp [a1] = Just (r, MO_Dbl_Cos, [a1])
+translateOp [r] DoubleTanOp [a1] = Just (r, MO_Dbl_Tan, [a1])
+translateOp [r] DoubleSinhOp [a1] = Just (r, MO_Dbl_Sinh, [a1])
+translateOp [r] DoubleCoshOp [a1] = Just (r, MO_Dbl_Cosh, [a1])
+translateOp [r] DoubleTanhOp [a1] = Just (r, MO_Dbl_Tanh, [a1])
+translateOp [r] DoubleAsinOp [a1] = Just (r, MO_Dbl_Asin, [a1])
+translateOp [r] DoubleAcosOp [a1] = Just (r, MO_Dbl_Acos, [a1])
+translateOp [r] DoubleAtanOp [a1] = Just (r, MO_Dbl_Atan, [a1])
+translateOp [r] DoubleLogOp [a1] = Just (r, MO_Dbl_Log, [a1])
+translateOp [r] DoubleExpOp [a1] = Just (r, MO_Dbl_Exp, [a1])
+translateOp [r] DoubleSqrtOp [a1] = Just (r, MO_Dbl_Sqrt, [a1])
+translateOp [r] DoubleNegOp [a1] = Just (r, MO_Dbl_Neg, [a1])
+
+-- Float ops
+
+translateOp [r] FloatEqOp [a1,a2] = Just (r, MO_Flt_Eq, [a1,a2])
+translateOp [r] FloatNeOp [a1,a2] = Just (r, MO_Flt_Ne, [a1,a2])
+translateOp [r] FloatGeOp [a1,a2] = Just (r, MO_Flt_Ge, [a1,a2])
+translateOp [r] FloatLeOp [a1,a2] = Just (r, MO_Flt_Le, [a1,a2])
+translateOp [r] FloatGtOp [a1,a2] = Just (r, MO_Flt_Gt, [a1,a2])
+translateOp [r] FloatLtOp [a1,a2] = Just (r, MO_Flt_Lt, [a1,a2])
+
+translateOp [r] FloatAddOp [a1,a2] = Just (r, MO_Flt_Add, [a1,a2])
+translateOp [r] FloatSubOp [a1,a2] = Just (r, MO_Flt_Sub, [a1,a2])
+translateOp [r] FloatMulOp [a1,a2] = Just (r, MO_Flt_Mul, [a1,a2])
+translateOp [r] FloatDivOp [a1,a2] = Just (r, MO_Flt_Div, [a1,a2])
+translateOp [r] FloatPowerOp [a1,a2] = Just (r, MO_Flt_Pwr, [a1,a2])
+
+translateOp [r] FloatSinOp [a1] = Just (r, MO_Flt_Sin, [a1])
+translateOp [r] FloatCosOp [a1] = Just (r, MO_Flt_Cos, [a1])
+translateOp [r] FloatTanOp [a1] = Just (r, MO_Flt_Tan, [a1])
+translateOp [r] FloatSinhOp [a1] = Just (r, MO_Flt_Sinh, [a1])
+translateOp [r] FloatCoshOp [a1] = Just (r, MO_Flt_Cosh, [a1])
+translateOp [r] FloatTanhOp [a1] = Just (r, MO_Flt_Tanh, [a1])
+translateOp [r] FloatAsinOp [a1] = Just (r, MO_Flt_Asin, [a1])
+translateOp [r] FloatAcosOp [a1] = Just (r, MO_Flt_Acos, [a1])
+translateOp [r] FloatAtanOp [a1] = Just (r, MO_Flt_Atan, [a1])
+translateOp [r] FloatLogOp [a1] = Just (r, MO_Flt_Log, [a1])
+translateOp [r] FloatExpOp [a1] = Just (r, MO_Flt_Exp, [a1])
+translateOp [r] FloatSqrtOp [a1] = Just (r, MO_Flt_Sqrt, [a1])
+translateOp [r] FloatNegOp [a1] = Just (r, MO_Flt_Neg, [a1])
+
+-- Conversions
+
+translateOp [r] Int2DoubleOp [a1] = Just (r, MO_NatS_to_Dbl, [a1])
+translateOp [r] Double2IntOp [a1] = Just (r, MO_Dbl_to_NatS, [a1])
+
+translateOp [r] Int2FloatOp [a1] = Just (r, MO_NatS_to_Flt, [a1])
+translateOp [r] Float2IntOp [a1] = Just (r, MO_Flt_to_NatS, [a1])
+
+translateOp [r] Float2DoubleOp [a1] = Just (r, MO_Flt_to_Dbl, [a1])
+translateOp [r] Double2FloatOp [a1] = Just (r, MO_Dbl_to_Flt, [a1])
+
+translateOp [r] Int2WordOp [a1] = Just (r, MO_NatS_to_NatU, [a1])
+translateOp [r] Word2IntOp [a1] = Just (r, MO_NatU_to_NatS, [a1])
+
+translateOp [r] Int2AddrOp [a1] = Just (r, MO_NatS_to_NatP, [a1])
+translateOp [r] Addr2IntOp [a1] = Just (r, MO_NatP_to_NatS, [a1])
+
+translateOp [r] OrdOp [a1] = Just (r, MO_32U_to_NatS, [a1])
+translateOp [r] ChrOp [a1] = Just (r, MO_NatS_to_32U, [a1])
+
+translateOp [r] Narrow8IntOp [a1] = Just (r, MO_8S_to_NatS, [a1])
+translateOp [r] Narrow16IntOp [a1] = Just (r, MO_16S_to_NatS, [a1])
+translateOp [r] Narrow32IntOp [a1] = Just (r, MO_32S_to_NatS, [a1])
+
+translateOp [r] Narrow8WordOp [a1] = Just (r, MO_8U_to_NatU, [a1])
+translateOp [r] Narrow16WordOp [a1] = Just (r, MO_16U_to_NatU, [a1])
+translateOp [r] Narrow32WordOp [a1] = Just (r, MO_32U_to_NatU, [a1])
+
+-- Word comparisons masquerading as more exotic things.
+
+translateOp [r] SameMutVarOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] SameMVarOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] SameMutableArrayOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] SameMutableByteArrayOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] EqForeignObj [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+translateOp [r] EqStablePtrOp [a1,a2] = Just (r, MO_Nat_Eq, [a1,a2])
+
+translateOp _ _ _ = Nothing
+\end{code}
+
+
+\begin{code}
+shimFCallArg arg amode
+ | tycon == foreignObjPrimTyCon
+ = CMacroExpr AddrRep ForeignObj_CLOSURE_DATA [amode]
+ | tycon == arrayPrimTyCon || tycon == mutableArrayPrimTyCon
+ = CMacroExpr PtrRep PTRS_ARR_CTS [amode]
+ | tycon == byteArrayPrimTyCon || tycon == mutableByteArrayPrimTyCon
+ = CMacroExpr AddrRep BYTE_ARR_CTS [amode]
+ | otherwise = amode
+ where
+ -- should be a tycon app, since this is a foreign call
+ tycon = tyConAppTyCon (repType (stgArgType arg))
+\end{code}
projects / ghc-hetmet.git / blobdiff