2 % (c) The GRASP/AQUA Project, Glasgow University, 1993-1998
4 \section[AbsCUtils]{Help functions for Abstract~C datatype}
9 mkAbstractCs, mkAbsCStmts,
13 mixedTypeLocn, mixedPtrLocn,
16 -- printing/forcing stuff comes from PprAbsC
19 #include "HsVersions.h"
22 import CLabel ( mkMAP_FROZEN_infoLabel )
23 import Digraph ( stronglyConnComp, SCC(..) )
24 import DataCon ( fIRST_TAG, ConTag )
25 import Literal ( literalPrimRep, mkMachWord, mkMachInt )
26 import PrimRep ( getPrimRepSize, PrimRep(..) )
27 import PrimOp ( PrimOp(..) )
28 import MachOp ( MachOp(..), isDefinitelyInlineMachOp )
29 import Unique ( Unique{-instance Eq-} )
30 import UniqSupply ( uniqFromSupply, uniqsFromSupply, splitUniqSupply,
32 import CmdLineOpts ( opt_EmitCExternDecls )
33 import ForeignCall ( ForeignCall(..), CCallSpec(..), CCallTarget(..), Safety(..),
34 isDynamicTarget, isCasmTarget, defaultCCallConv )
35 import StgSyn ( StgOp(..) )
36 import SMRep ( arrPtrsHdrSize, arrWordsHdrSize, fixedHdrSize )
38 import Panic ( panic )
41 import Maybe ( isJust, maybeToList )
46 Check if there is any real code in some Abstract~C. If so, return it
47 (@Just ...@); otherwise, return @Nothing@. Don't be too strict!
49 It returns the "reduced" code in the Just part so that the work of
50 discarding AbsCNops isn't lost, and so that if the caller uses
51 the reduced version there's less danger of a big tree of AbsCNops getting
52 materialised and causing a space leak.
55 nonemptyAbsC :: AbstractC -> Maybe AbstractC
56 nonemptyAbsC AbsCNop = Nothing
57 nonemptyAbsC (AbsCStmts s1 s2) = case (nonemptyAbsC s1) of
58 Nothing -> nonemptyAbsC s2
59 Just x -> Just (AbsCStmts x s2)
60 nonemptyAbsC s@(CSimultaneous c) = case (nonemptyAbsC c) of
63 nonemptyAbsC other = Just other
67 mkAbstractCs :: [AbstractC] -> AbstractC
68 mkAbstractCs [] = AbsCNop
69 mkAbstractCs cs = foldr1 mkAbsCStmts cs
71 -- for fiddling around w/ killing off AbsCNops ... (ToDo)
72 mkAbsCStmts :: AbstractC -> AbstractC -> AbstractC
73 mkAbsCStmts AbsCNop c = c
74 mkAbsCStmts c AbsCNop = c
75 mkAbsCStmts c1 c2 = c1 `AbsCStmts` c2
77 {- Discarded SLPJ June 95; it calls nonemptyAbsC too much!
78 = case (case (nonemptyAbsC abc2) of
80 Just d2 -> d2) of { abc2b ->
82 case (nonemptyAbsC abc1) of {
84 Just d1 -> AbsCStmts d1 abc2b
89 Get the sho' 'nuff statements out of an @AbstractC@.
91 mkAbsCStmtList :: AbstractC -> [AbstractC]
93 mkAbsCStmtList absC = mkAbsCStmtList' absC []
95 -- Optimised a la foldr/build!
97 mkAbsCStmtList' AbsCNop r = r
99 mkAbsCStmtList' (AbsCStmts s1 s2) r
100 = mkAbsCStmtList' s1 (mkAbsCStmtList' s2 r)
102 mkAbsCStmtList' s@(CSimultaneous c) r
103 = if null (mkAbsCStmtList c) then r else s : r
105 mkAbsCStmtList' other r = other : r
109 mkAlgAltsCSwitch :: CAddrMode -> [(ConTag, AbstractC)] -> AbstractC -> AbstractC
111 mkAlgAltsCSwitch scrutinee tagged_alts deflt_absc
112 | isJust (nonemptyAbsC deflt_absc)
113 = CSwitch scrutinee (adjust tagged_alts) deflt_absc
115 = CSwitch scrutinee (adjust rest) first_alt
117 -- it's ok to convert one of the alts into a default if we don't already have
118 -- one, because this is an algebraic case and we're guaranteed that the tag
119 -- will match one of the branches.
120 ((_,first_alt):rest) = tagged_alts
122 -- Adjust the tags in the switch to start at zero.
123 -- This is the convention used by primitive ops which return algebraic
124 -- data types. Why? Because for two-constructor types, zero is faster
125 -- to create and distinguish from 1 than are 1 and 2.
127 -- We also need to convert to Literals to keep the CSwitch happy
129 = [ (mkMachWord (toInteger (tag - fIRST_TAG)), abs_c)
130 | (tag, abs_c) <- tagged_alts ]
133 %************************************************************************
135 \subsubsection[AbsCUtils-kinds-from-MagicIds]{Kinds from MagicIds}
137 %************************************************************************
140 magicIdPrimRep BaseReg = PtrRep
141 magicIdPrimRep (VanillaReg kind _) = kind
142 magicIdPrimRep (FloatReg _) = FloatRep
143 magicIdPrimRep (DoubleReg _) = DoubleRep
144 magicIdPrimRep (LongReg kind _) = kind
145 magicIdPrimRep Sp = PtrRep
146 magicIdPrimRep Su = PtrRep
147 magicIdPrimRep SpLim = PtrRep
148 magicIdPrimRep Hp = PtrRep
149 magicIdPrimRep HpLim = PtrRep
150 magicIdPrimRep CurCostCentre = CostCentreRep
151 magicIdPrimRep VoidReg = VoidRep
152 magicIdPrimRep CurrentTSO = ThreadIdRep
153 magicIdPrimRep CurrentNursery = PtrRep
156 %************************************************************************
158 \subsection[AbsCUtils-amode-kinds]{Finding @PrimitiveKinds@ of amodes}
160 %************************************************************************
162 See also the return conventions for unboxed things; currently living
163 in @CgCon@ (next to the constructor return conventions).
165 ToDo: tiny tweaking may be in order
167 getAmodeRep :: CAddrMode -> PrimRep
169 getAmodeRep (CVal _ kind) = kind
170 getAmodeRep (CAddr _) = PtrRep
171 getAmodeRep (CReg magic_id) = magicIdPrimRep magic_id
172 getAmodeRep (CTemp uniq kind) = kind
173 getAmodeRep (CLbl _ kind) = kind
174 getAmodeRep (CCharLike _) = PtrRep
175 getAmodeRep (CIntLike _) = PtrRep
176 getAmodeRep (CLit lit) = literalPrimRep lit
177 getAmodeRep (CMacroExpr kind _ _) = kind
178 getAmodeRep (CJoinPoint _) = panic "getAmodeRep:CJoinPoint"
179 getAmodeRep (CMem rep addr) = rep
182 @mixedTypeLocn@ tells whether an amode identifies an ``StgWord''
183 location; that is, one which can contain values of various types.
186 mixedTypeLocn :: CAddrMode -> Bool
188 mixedTypeLocn (CVal (NodeRel _) _) = True
189 mixedTypeLocn (CVal (SpRel _) _) = True
190 mixedTypeLocn (CVal (HpRel _) _) = True
191 mixedTypeLocn other = False -- All the rest
194 @mixedPtrLocn@ tells whether an amode identifies a
195 location which can contain values of various pointer types.
198 mixedPtrLocn :: CAddrMode -> Bool
200 mixedPtrLocn (CVal (SpRel _) _) = True
201 mixedPtrLocn other = False -- All the rest
204 %************************************************************************
206 \subsection[AbsCUtils-flattening]{Flatten Abstract~C}
208 %************************************************************************
210 The following bits take ``raw'' Abstract~C, which may have all sorts of
211 nesting, and flattens it into one long @AbsCStmtList@. Mainly,
212 @CClosureInfos@ and code for switches are pulled out to the top level.
214 The various functions herein tend to produce
217 A {\em flattened} \tr{<something>} of interest for ``here'', and
219 Some {\em unflattened} Abstract~C statements to be carried up to the
220 top-level. The only real reason (now) that it is unflattened is
221 because it means the recursive flattening can be done in just one
222 place rather than having to remember lots of places.
225 Care is taken to reduce the occurrence of forward references, while still
226 keeping laziness a much as possible. Essentially, this means that:
229 {\em All} the top-level C statements resulting from flattening a
230 particular AbsC statement (whether the latter is nested or not) appear
231 before {\em any} of the code for a subsequent AbsC statement;
233 but stuff nested within any AbsC statement comes
234 out before the code for the statement itself.
237 The ``stuff to be carried up'' always includes a label: a
238 @CStaticClosure@, @CRetDirect@, @CFlatRetVector@, or
239 @CCodeBlock@. The latter turns into a C function, and is never
240 actually produced by the code generator. Rather it always starts life
241 as a @CCodeBlock@ addressing mode; when such an addr mode is
242 flattened, the ``tops'' stuff is a @CCodeBlock@.
245 flattenAbsC :: UniqSupply -> AbstractC -> AbstractC
248 = case (initFlt us (flatAbsC abs_C)) of { (here, tops) ->
249 here `mkAbsCStmts` tops }
252 %************************************************************************
254 \subsubsection{Flattening monadery}
256 %************************************************************************
258 The flattener is monadised. It's just a @UniqueSupply@.
261 type FlatM result = UniqSupply -> result
263 initFlt :: UniqSupply -> FlatM a -> a
265 initFlt init_us m = m init_us
267 {-# INLINE thenFlt #-}
268 {-# INLINE returnFlt #-}
270 thenFlt :: FlatM a -> (a -> FlatM b) -> FlatM b
273 = case (splitUniqSupply us) of { (s1, s2) ->
274 case (expr s1) of { result ->
277 returnFlt :: a -> FlatM a
278 returnFlt result us = result
280 mapFlt :: (a -> FlatM b) -> [a] -> FlatM [b]
282 mapFlt f [] = returnFlt []
284 = f x `thenFlt` \ r ->
285 mapFlt f xs `thenFlt` \ rs ->
288 mapAndUnzipFlt :: (a -> FlatM (b,c)) -> [a] -> FlatM ([b],[c])
290 mapAndUnzipFlt f [] = returnFlt ([],[])
291 mapAndUnzipFlt f (x:xs)
292 = f x `thenFlt` \ (r1, r2) ->
293 mapAndUnzipFlt f xs `thenFlt` \ (rs1, rs2) ->
294 returnFlt (r1:rs1, r2:rs2)
296 getUniqFlt :: FlatM Unique
297 getUniqFlt us = uniqFromSupply us
299 getUniqsFlt :: FlatM [Unique]
300 getUniqsFlt us = uniqsFromSupply us
303 %************************************************************************
305 \subsubsection{Flattening the top level}
307 %************************************************************************
310 flatAbsC :: AbstractC
311 -> FlatM (AbstractC, -- Stuff to put inline [Both are fully
312 AbstractC) -- Stuff to put at top level flattened]
314 flatAbsC AbsCNop = returnFlt (AbsCNop, AbsCNop)
316 flatAbsC (AbsCStmts s1 s2)
317 = flatAbsC s1 `thenFlt` \ (inline_s1, top_s1) ->
318 flatAbsC s2 `thenFlt` \ (inline_s2, top_s2) ->
319 returnFlt (mkAbsCStmts inline_s1 inline_s2,
320 mkAbsCStmts top_s1 top_s2)
322 flatAbsC (CClosureInfoAndCode cl_info slow maybe_fast descr)
323 = flatAbsC slow `thenFlt` \ (slow_heres, slow_tops) ->
324 flat_maybe maybe_fast `thenFlt` \ (fast_heres, fast_tops) ->
325 returnFlt (AbsCNop, mkAbstractCs [slow_tops, fast_tops,
326 CClosureInfoAndCode cl_info slow_heres fast_heres descr]
329 flatAbsC (CCodeBlock lbl abs_C)
330 = flatAbsC abs_C `thenFlt` \ (absC_heres, absC_tops) ->
331 returnFlt (AbsCNop, absC_tops `mkAbsCStmts` CCodeBlock lbl absC_heres)
333 flatAbsC (CRetDirect uniq slow_code srt liveness)
334 = flatAbsC slow_code `thenFlt` \ (heres, tops) ->
336 mkAbstractCs [ tops, CRetDirect uniq heres srt liveness ])
338 flatAbsC (CSwitch discrim alts deflt)
339 = mapAndUnzipFlt flat_alt alts `thenFlt` \ (flat_alts, flat_alts_tops) ->
340 flatAbsC deflt `thenFlt` \ (flat_def_alt, def_tops) ->
342 CSwitch discrim flat_alts flat_def_alt,
343 mkAbstractCs (def_tops : flat_alts_tops)
347 = flatAbsC absC `thenFlt` \ (alt_heres, alt_tops) ->
348 returnFlt ( (tag, alt_heres), alt_tops )
350 flatAbsC stmt@(COpStmt results (StgFCallOp (CCall ccall@(CCallSpec target _ _)) uniq) args _)
351 | is_dynamic -- Emit a typedef if its a dynamic call
352 || (opt_EmitCExternDecls && not (isCasmTarget target)) -- or we want extern decls
353 = returnFlt (stmt, CCallTypedef is_dynamic ccall uniq results args)
355 is_dynamic = isDynamicTarget target
357 flatAbsC stmt@(CSimultaneous abs_c)
358 = flatAbsC abs_c `thenFlt` \ (stmts_here, tops) ->
359 doSimultaneously stmts_here `thenFlt` \ new_stmts_here ->
360 returnFlt (new_stmts_here, tops)
362 flatAbsC stmt@(CCheck macro amodes code)
363 = flatAbsC code `thenFlt` \ (code_here, code_tops) ->
364 returnFlt (CCheck macro amodes code_here, code_tops)
366 -- the TICKY_CTR macro always needs to be hoisted out to the top level.
368 flatAbsC stmt@(CCallProfCtrMacro str amodes)
369 | str == SLIT("TICK_CTR") = returnFlt (AbsCNop, stmt)
370 | otherwise = returnFlt (stmt, AbsCNop)
372 -- Some statements need no flattening at all:
373 flatAbsC stmt@(CMacroStmt macro amodes) = returnFlt (stmt, AbsCNop)
374 flatAbsC stmt@(CCallProfCCMacro str amodes) = returnFlt (stmt, AbsCNop)
375 flatAbsC stmt@(CAssign dest source) = returnFlt (stmt, AbsCNop)
376 flatAbsC stmt@(CJump target) = returnFlt (stmt, AbsCNop)
377 flatAbsC stmt@(CFallThrough target) = returnFlt (stmt, AbsCNop)
378 flatAbsC stmt@(CReturn target return_info) = returnFlt (stmt, AbsCNop)
379 flatAbsC stmt@(CInitHdr a b cc sz) = returnFlt (stmt, AbsCNop)
380 flatAbsC stmt@(CMachOpStmt res mop args m_vols) = returnFlt (stmt, AbsCNop)
381 flatAbsC stmt@(COpStmt results (StgFCallOp _ _) args vol_regs)
382 = returnFlt (stmt, AbsCNop)
383 flatAbsC stmt@(COpStmt results (StgPrimOp op) args vol_regs)
384 = dscCOpStmt (filter non_void_amode results) op
385 (filter non_void_amode args) vol_regs
388 COpStmt _ _ _ _ -> panic "flatAbsC - dscCOpStmt" -- make sure we don't loop!
389 other -> flatAbsC other
391 A gruesome hack for printing the names of inline primops when they
396 = getUniqFlt `thenFlt` \ uu ->
397 flatAbsC (CSequential [moo uu (showSDoc (ppr op)), xxx])
403 (CCall (CCallSpec (CasmTarget (_PK_ (mktxt op_str)))
404 defaultCCallConv PlaySafe))
410 = " asm(\"pushal;\"); printf(\"%%s\\n\",\"" ++ op_str ++ "\"); asm(\"popal\"); "
413 flatAbsC (CSequential abcs)
414 = mapAndUnzipFlt flatAbsC abcs `thenFlt` \ (inlines, tops) ->
415 returnFlt (CSequential inlines, foldr AbsCStmts AbsCNop tops)
418 -- Some statements only make sense at the top level, so we always float
419 -- them. This probably isn't necessary.
420 flatAbsC stmt@(CStaticClosure _ _ _ _) = returnFlt (AbsCNop, stmt)
421 flatAbsC stmt@(CClosureTbl _) = returnFlt (AbsCNop, stmt)
422 flatAbsC stmt@(CSRT _ _) = returnFlt (AbsCNop, stmt)
423 flatAbsC stmt@(CBitmap _ _) = returnFlt (AbsCNop, stmt)
424 flatAbsC stmt@(CCostCentreDecl _ _) = returnFlt (AbsCNop, stmt)
425 flatAbsC stmt@(CCostCentreStackDecl _) = returnFlt (AbsCNop, stmt)
426 flatAbsC stmt@(CSplitMarker) = returnFlt (AbsCNop, stmt)
427 flatAbsC stmt@(CRetVector _ _ _ _) = returnFlt (AbsCNop, stmt)
428 flatAbsC stmt@(CModuleInitBlock _ _) = returnFlt (AbsCNop, stmt)
432 flat_maybe :: Maybe AbstractC -> FlatM (Maybe AbstractC, AbstractC)
433 flat_maybe Nothing = returnFlt (Nothing, AbsCNop)
434 flat_maybe (Just abs_c) = flatAbsC abs_c `thenFlt` \ (heres, tops) ->
435 returnFlt (Just heres, tops)
438 %************************************************************************
440 \subsection[flat-simultaneous]{Doing things simultaneously}
442 %************************************************************************
445 doSimultaneously :: AbstractC -> FlatM AbstractC
448 Generate code to perform the @CAssign@s and @COpStmt@s in the
449 input simultaneously, using temporary variables when necessary.
451 We use the strongly-connected component algorithm, in which
452 * the vertices are the statements
453 * an edge goes from s1 to s2 iff
454 s1 assigns to something s2 uses
455 that is, if s1 should *follow* s2 in the final order
458 type CVertex = (Int, AbstractC) -- Give each vertex a unique number,
459 -- for fast comparison
461 doSimultaneously abs_c
463 enlisted = en_list abs_c
465 case enlisted of -- it's often just one stmt
466 [] -> returnFlt AbsCNop
468 _ -> doSimultaneously1 (zip [(1::Int)..] enlisted)
470 -- en_list puts all the assignments in a list, filtering out Nops and
471 -- assignments which do nothing
473 en_list (AbsCStmts a1 a2) = en_list a1 ++ en_list a2
474 en_list (CAssign am1 am2) | sameAmode am1 am2 = []
475 en_list other = [other]
477 sameAmode :: CAddrMode -> CAddrMode -> Bool
478 -- ToDo: Move this function, or make CAddrMode an instance of Eq
479 -- At the moment we put in just enough to catch the cases we want:
480 -- the second (destination) argument is always a CVal.
481 sameAmode (CReg r1) (CReg r2) = r1 == r2
482 sameAmode (CVal (SpRel r1) _) (CVal (SpRel r2) _) = r1 ==# r2
483 sameAmode other1 other2 = False
485 doSimultaneously1 :: [CVertex] -> FlatM AbstractC
486 doSimultaneously1 vertices
488 edges = [ (vertex, key1, edges_from stmt1)
489 | vertex@(key1, stmt1) <- vertices
491 edges_from stmt1 = [ key2 | (key2, stmt2) <- vertices,
492 stmt1 `should_follow` stmt2
494 components = stronglyConnComp edges
496 -- do_components deal with one strongly-connected component
497 -- Not cyclic, or singleton? Just do it
498 do_component (AcyclicSCC (n,abs_c)) = returnFlt abs_c
499 do_component (CyclicSCC [(n,abs_c)]) = returnFlt abs_c
501 -- Cyclic? Then go via temporaries. Pick one to
502 -- break the loop and try again with the rest.
503 do_component (CyclicSCC ((n,first_stmt) : rest))
504 = doSimultaneously1 rest `thenFlt` \ abs_cs ->
505 go_via_temps first_stmt `thenFlt` \ (to_temps, from_temps) ->
506 returnFlt (mkAbstractCs [to_temps, abs_cs, from_temps])
508 go_via_temps (CAssign dest src)
509 = getUniqFlt `thenFlt` \ uniq ->
511 the_temp = CTemp uniq (getAmodeRep dest)
513 returnFlt (CAssign the_temp src, CAssign dest the_temp)
515 go_via_temps (COpStmt dests op srcs vol_regs)
516 = getUniqsFlt `thenFlt` \ uniqs ->
518 the_temps = zipWith (\ u d -> CTemp u (getAmodeRep d)) uniqs dests
520 returnFlt (COpStmt the_temps op srcs vol_regs,
521 mkAbstractCs (zipWith CAssign dests the_temps))
523 mapFlt do_component components `thenFlt` \ abs_cs ->
524 returnFlt (mkAbstractCs abs_cs)
527 should_follow :: AbstractC -> AbstractC -> Bool
528 (CAssign dest1 _) `should_follow` (CAssign _ src2)
529 = dest1 `conflictsWith` src2
530 (COpStmt dests1 _ _ _) `should_follow` (CAssign _ src2)
531 = or [dest1 `conflictsWith` src2 | dest1 <- dests1]
532 (CAssign dest1 _)`should_follow` (COpStmt _ _ srcs2 _)
533 = or [dest1 `conflictsWith` src2 | src2 <- srcs2]
534 (COpStmt dests1 _ _ _) `should_follow` (COpStmt _ _ srcs2 _)
535 = or [dest1 `conflictsWith` src2 | dest1 <- dests1, src2 <- srcs2]
538 @conflictsWith@ tells whether an assignment to its first argument will
539 screw up an access to its second.
542 conflictsWith :: CAddrMode -> CAddrMode -> Bool
543 (CReg reg1) `conflictsWith` (CReg reg2) = reg1 == reg2
544 (CReg reg) `conflictsWith` (CVal reg_rel _) = reg `regConflictsWithRR` reg_rel
545 (CReg reg) `conflictsWith` (CAddr reg_rel) = reg `regConflictsWithRR` reg_rel
546 (CTemp u1 _) `conflictsWith` (CTemp u2 _) = u1 == u2
547 (CVal reg_rel1 k1) `conflictsWith` (CVal reg_rel2 k2)
548 = rrConflictsWithRR (getPrimRepSize k1) (getPrimRepSize k2) reg_rel1 reg_rel2
550 other1 `conflictsWith` other2 = False
551 -- CAddr and literals are impossible on the LHS of an assignment
553 regConflictsWithRR :: MagicId -> RegRelative -> Bool
555 regConflictsWithRR (VanillaReg k n) (NodeRel _) | n ==# (_ILIT 1) = True
556 regConflictsWithRR Sp (SpRel _) = True
557 regConflictsWithRR Hp (HpRel _) = True
558 regConflictsWithRR _ _ = False
560 rrConflictsWithRR :: Int -> Int -- Sizes of two things
561 -> RegRelative -> RegRelative -- The two amodes
564 rrConflictsWithRR s1b s2b rr1 rr2 = rr rr1 rr2
569 rr (SpRel o1) (SpRel o2)
570 | s1 ==# (_ILIT 0) || s2 ==# (_ILIT 0) = False -- No conflict if either is size zero
571 | s1 ==# (_ILIT 1) && s2 ==# (_ILIT 1) = o1 ==# o2
572 | otherwise = (o1 +# s1) >=# o2 &&
575 rr (NodeRel o1) (NodeRel o2)
576 | s1 ==# (_ILIT 0) || s2 ==# (_ILIT 0) = False -- No conflict if either is size zero
577 | s1 ==# (_ILIT 1) && s2 ==# (_ILIT 1) = o1 ==# o2
578 | otherwise = True -- Give up
580 rr (HpRel _) (HpRel _) = True -- Give up (ToDo)
582 rr other1 other2 = False
585 %************************************************************************
587 \subsection[flat-primops]{Translating COpStmts to CMachOpStmts}
589 %************************************************************************
594 ------------------------------------------------------------------------------
596 -- Assumes no volatiles
598 -- res = arg >> (bits-per-word / 2) when little-endian
600 -- res = arg & ((1 << (bits-per-word / 2)) - 1) when big-endian
602 -- In other words, if arg had been stored in memory, makes res the
603 -- halfword of arg which would have had the higher address. This is
604 -- why it needs to take into account endianness.
606 mkHalfWord_HIADDR res arg
607 = mkTemp IntRep `thenFlt` \ t_hw_shift ->
608 mkTemp WordRep `thenFlt` \ t_hw_mask1 ->
609 mkTemp WordRep `thenFlt` \ t_hw_mask2 ->
611 = CMachOpStmt (Just t_hw_shift)
612 MO_Nat_Shl [CBytesPerWord, CLit (mkMachInt 2)] Nothing
614 = CMachOpStmt (Just t_hw_mask1)
615 MO_Nat_Shl [CLit (mkMachWord 1), t_hw_shift] Nothing
617 = CMachOpStmt (Just t_hw_mask2)
618 MO_Nat_Sub [t_hw_mask1, CLit (mkMachWord 1)] Nothing
621 = CSequential [ a_hw_shift, a_hw_mask1, a_hw_mask2,
622 CMachOpStmt (Just res) MO_Nat_And [arg, t_hw_mask2] Nothing
625 = CSequential [ a_hw_shift,
626 CMachOpStmt (Just res) MO_Nat_Shr [arg, t_hw_shift] Nothing
633 mkTemp :: PrimRep -> FlatM CAddrMode
635 = getUniqFlt `thenFlt` \ uniq -> returnFlt (CTemp uniq rep)
637 mkTemps = mapFlt mkTemp
639 mkDerefOff :: PrimRep -> CAddrMode -> Int -> CAddrMode
640 mkDerefOff rep base off
641 | off == 0 -- optimisation
644 = CMem rep (CAddr (CIndex base (CLit (mkMachInt (toInteger off))) rep))
646 mkNoDerefOff :: PrimRep -> CAddrMode -> Int -> CAddrMode
647 mkNoDerefOff rep base off
648 = CAddr (CIndex base (CLit (mkMachInt (toInteger off))) rep)
650 -- Sigh. This is done in 3 seperate places. Should be
651 -- commoned up (here, in pprAbsC of COpStmt, and presumably
652 -- somewhere in the NCG).
654 = case getAmodeRep amode of
658 doIndexOffForeignObjOp rep res addr idx
659 = Just (Just res, MO_ReadOSBI fixedHdrSize rep, [addr,idx])
661 doIndexOffAddrOp rep res addr idx
662 = Just (Just res, MO_ReadOSBI 0 rep, [addr,idx])
664 doIndexByteArrayOp rep res addr idx
665 = Just (Just res, MO_ReadOSBI arrWordsHdrSize rep, [addr,idx])
667 doWriteOffAddrOp rep addr idx val
668 = Just (Nothing, MO_WriteOSBI 0 rep, [addr,idx,val])
670 doWriteByteArrayOp rep addr idx val
671 = Just (Nothing, MO_WriteOSBI arrWordsHdrSize rep, [addr,idx,val])
673 -- Simple dyadic op but one for which we need to cast first arg to
674 -- be sure of correctness
675 translateOp_dyadic_cast1 mop res cast_arg1_to arg1 arg2 vols
676 = mkTemp cast_arg1_to `thenFlt` \ arg1casted ->
677 (returnFlt . CSequential) [
678 CAssign arg1casted arg1,
679 CMachOpStmt (Just res) mop [arg1casted,arg2]
680 (if isDefinitelyInlineMachOp mop then Nothing else Just vols)
683 getBitsPerWordMinus1 :: FlatM (AbstractC, CAddrMode)
685 = mkTemps [IntRep, IntRep] `thenFlt` \ [t1,t2] ->
688 CMachOpStmt (Just t1) MO_Nat_Shl
689 [CBytesPerWord, CLit (mkMachInt 3)] Nothing,
690 CMachOpStmt (Just t2) MO_Nat_Sub
691 [t1, CLit (mkMachInt 1)] Nothing
696 ------------------------------------------------------------------------------
698 dscCOpStmt :: [CAddrMode] -- Results
700 -> [CAddrMode] -- Arguments
701 -> [MagicId] -- Potentially volatile/live registers
702 -- (to save/restore around the op)
706 dscCOpStmt [res_r,res_c] IntAddCOp [aa,bb] vols
708 With some bit-twiddling, we can define int{Add,Sub}Czh portably in
709 C, and without needing any comparisons. This may not be the
710 fastest way to do it - if you have better code, please send it! --SDM
712 Return : r = a + b, c = 0 if no overflow, 1 on overflow.
714 We currently don't make use of the r value if c is != 0 (i.e.
715 overflow), we just convert to big integers and try again. This
716 could be improved by making r and c the correct values for
717 plugging into a new J#.
719 { r = ((I_)(a)) + ((I_)(b)); \
720 c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
721 >> (BITS_IN (I_) - 1); \
723 Wading through the mass of bracketry, it seems to reduce to:
724 c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
731 c = t4 >>unsigned BITS_IN(I_)-1
733 = mkTemps [IntRep,IntRep,IntRep,IntRep] `thenFlt` \ [t1,t2,t3,t4] ->
734 getBitsPerWordMinus1 `thenFlt` \ (bpw1_code,bpw1_t) ->
735 (returnFlt . CSequential) [
736 CMachOpStmt (Just res_r) MO_Nat_Add [aa,bb] Nothing,
737 CMachOpStmt (Just t1) MO_Nat_Xor [aa,bb] Nothing,
738 CMachOpStmt (Just t2) MO_Nat_Not [t1] Nothing,
739 CMachOpStmt (Just t3) MO_Nat_Xor [aa,res_r] Nothing,
740 CMachOpStmt (Just t4) MO_Nat_And [t2,t3] Nothing,
742 CMachOpStmt (Just res_c) MO_Nat_Shr [t4, bpw1_t] Nothing
746 dscCOpStmt [res_r,res_c] IntSubCOp [aa,bb] vols
748 #define subIntCzh(r,c,a,b) \
749 { r = ((I_)(a)) - ((I_)(b)); \
750 c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
751 >> (BITS_IN (I_) - 1); \
754 c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
759 c = t3 >>unsigned BITS_IN(I_)-1
761 = mkTemps [IntRep,IntRep,IntRep] `thenFlt` \ [t1,t2,t3] ->
762 getBitsPerWordMinus1 `thenFlt` \ (bpw1_code,bpw1_t) ->
763 (returnFlt . CSequential) [
764 CMachOpStmt (Just res_r) MO_Nat_Add [aa,bb] Nothing,
765 CMachOpStmt (Just t1) MO_Nat_Xor [aa,bb] Nothing,
766 CMachOpStmt (Just t2) MO_Nat_Xor [aa,res_r] Nothing,
767 CMachOpStmt (Just t3) MO_Nat_And [t2,t3] Nothing,
769 CMachOpStmt (Just res_c) MO_Nat_Shr [t3, bpw1_t] Nothing
773 -- #define parzh(r,node) r = 1
774 dscCOpStmt [res] ParOp [arg] vols
776 (CAssign res (CLit (mkMachInt 1)))
778 -- #define readMutVarzh(r,a) r=(P_)(((StgMutVar *)(a))->var)
779 dscCOpStmt [res] ReadMutVarOp [mutv] vols
781 (CAssign res (mkDerefOff PtrRep mutv fixedHdrSize))
783 -- #define writeMutVarzh(a,v) (P_)(((StgMutVar *)(a))->var)=(v)
784 dscCOpStmt [] WriteMutVarOp [mutv,var] vols
786 (CAssign (mkDerefOff PtrRep mutv fixedHdrSize) var)
789 -- #define ForeignObj_CLOSURE_DATA(c) (((StgForeignObj *)c)->data)
790 -- #define foreignObjToAddrzh(r,fo) r=ForeignObj_CLOSURE_DATA(fo)
791 dscCOpStmt [res] ForeignObjToAddrOp [fo] vols
793 (CAssign res (mkDerefOff PtrRep fo fixedHdrSize))
795 -- #define writeForeignObjzh(res,datum) \
796 -- (ForeignObj_CLOSURE_DATA(res) = (P_)(datum))
797 dscCOpStmt [] WriteForeignObjOp [fo,addr] vols
799 (CAssign (mkDerefOff PtrRep fo fixedHdrSize) addr)
802 -- #define sizzeofByteArrayzh(r,a) \
803 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
804 dscCOpStmt [res] SizeofByteArrayOp [arg] vols
805 = mkTemp WordRep `thenFlt` \ w ->
806 (returnFlt . CSequential) [
807 CAssign w (mkDerefOff WordRep arg fixedHdrSize),
809 MO_NatU_Mul [w, CBytesPerWord] (Just vols),
813 -- #define sizzeofMutableByteArrayzh(r,a) \
814 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
815 dscCOpStmt [res] SizeofMutableByteArrayOp [arg] vols
816 = dscCOpStmt [res] SizeofByteArrayOp [arg] vols
819 -- #define touchzh(o) /* nothing */
820 dscCOpStmt [] TouchOp [arg] vols
823 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
824 dscCOpStmt [res] ByteArrayContents_Char [arg] vols
825 = mkTemp PtrRep `thenFlt` \ ptr ->
826 (returnFlt . CSequential) [
827 CMachOpStmt (Just ptr) MO_NatU_to_NatP [arg] Nothing,
828 CAssign ptr (mkNoDerefOff WordRep ptr arrWordsHdrSize),
832 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
833 dscCOpStmt [res] StableNameToIntOp [arg] vols
835 (CAssign res (mkDerefOff WordRep arg fixedHdrSize))
837 -- #define eqStableNamezh(r,sn1,sn2) \
838 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
839 dscCOpStmt [res] EqStableNameOp [arg1,arg2] vols
840 = mkTemps [WordRep, WordRep] `thenFlt` \ [sn1,sn2] ->
841 (returnFlt . CSequential) [
842 CAssign sn1 (mkDerefOff WordRep arg1 fixedHdrSize),
843 CAssign sn2 (mkDerefOff WordRep arg2 fixedHdrSize),
844 CMachOpStmt (Just res) MO_Nat_Eq [sn1,sn2] Nothing
847 -- #define addrToHValuezh(r,a) r=(P_)a
848 dscCOpStmt [res] AddrToHValueOp [arg] vols
852 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
853 dscCOpStmt [res] DataToTagOp [arg] vols
854 = mkTemps [PtrRep, WordRep] `thenFlt` \ [t_infoptr, t_theword] ->
855 mkHalfWord_HIADDR res t_theword `thenFlt` \ select_ops ->
856 (returnFlt . CSequential) [
857 CAssign t_infoptr (mkDerefOff PtrRep arg 0),
858 CAssign t_theword (mkDerefOff WordRep t_infoptr (-1)),
863 {- Freezing arrays-of-ptrs requires changing an info table, for the
864 benefit of the generational collector. It needs to scavenge mutable
865 objects, even if they are in old space. When they become immutable,
866 they can be removed from this scavenge list. -}
868 -- #define unsafeFreezzeArrayzh(r,a) \
870 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN_info); \
873 dscCOpStmt [res] UnsafeFreezeArrayOp [arg] vols
874 = (returnFlt . CSequential) [
875 CAssign (mkDerefOff PtrRep arg 0) (CLbl mkMAP_FROZEN_infoLabel PtrRep),
879 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
880 dscCOpStmt [res] UnsafeFreezeByteArrayOp [arg] vols
884 -- This ought to be trivial, but it's difficult to insert the casts
885 -- required to keep the C compiler happy.
886 dscCOpStmt [r] AddrRemOp [a1,a2] vols
887 = mkTemp WordRep `thenFlt` \ a1casted ->
888 (returnFlt . CSequential) [
889 CMachOpStmt (Just a1casted) MO_NatP_to_NatU [a1] Nothing,
890 CMachOpStmt (Just r) MO_NatU_Rem [a1casted,a2] Nothing
893 -- not handled by translateOp because they need casts
894 dscCOpStmt [r] SllOp [a1,a2] vols
895 = translateOp_dyadic_cast1 MO_Nat_Shl r WordRep a1 a2 vols
896 dscCOpStmt [r] SrlOp [a1,a2] vols
897 = translateOp_dyadic_cast1 MO_Nat_Shr r WordRep a1 a2 vols
899 dscCOpStmt [r] ISllOp [a1,a2] vols
900 = translateOp_dyadic_cast1 MO_Nat_Shl r IntRep a1 a2 vols
901 dscCOpStmt [r] ISrlOp [a1,a2] vols
902 = translateOp_dyadic_cast1 MO_Nat_Shr r IntRep a1 a2 vols
903 dscCOpStmt [r] ISraOp [a1,a2] vols
904 = translateOp_dyadic_cast1 MO_Nat_Sar r IntRep a1 a2 vols
907 -- Handle all others as simply as possible.
908 dscCOpStmt ress op args vols
909 = case translateOp ress op args of
911 -> pprPanic "dscCOpStmt: can't translate PrimOp" (ppr op)
912 Just (maybe_res, mop, args)
914 CMachOpStmt maybe_res mop args
915 (if isDefinitelyInlineMachOp mop then Nothing else Just vols)
920 translateOp [r] ReadArrayOp [obj,ix]
921 = Just (Just r, MO_ReadOSBI arrPtrsHdrSize PtrRep, [obj,ix])
922 translateOp [r] IndexArrayOp [obj,ix]
923 = Just (Just r, MO_ReadOSBI arrPtrsHdrSize PtrRep, [obj,ix])
924 translateOp [] WriteArrayOp [obj,ix,v]
925 = Just (Nothing, MO_WriteOSBI arrPtrsHdrSize PtrRep, [obj,ix,v])
927 -- IndexXXXoffForeignObj
929 translateOp [r] IndexOffForeignObjOp_Char [a,i] = doIndexOffForeignObjOp Word8Rep r a i
930 translateOp [r] IndexOffForeignObjOp_WideChar [a,i] = doIndexOffForeignObjOp Word32Rep r a i
931 translateOp [r] IndexOffForeignObjOp_Int [a,i] = doIndexOffForeignObjOp IntRep r a i
932 translateOp [r] IndexOffForeignObjOp_Word [a,i] = doIndexOffForeignObjOp WordRep r a i
933 translateOp [r] IndexOffForeignObjOp_Addr [a,i] = doIndexOffForeignObjOp AddrRep r a i
934 translateOp [r] IndexOffForeignObjOp_Float [a,i] = doIndexOffForeignObjOp FloatRep r a i
935 translateOp [r] IndexOffForeignObjOp_Double [a,i] = doIndexOffForeignObjOp DoubleRep r a i
936 translateOp [r] IndexOffForeignObjOp_StablePtr [a,i] = doIndexOffForeignObjOp StablePtrRep r a i
938 translateOp [r] IndexOffForeignObjOp_Int8 [a,i] = doIndexOffForeignObjOp Int8Rep r a i
939 translateOp [r] IndexOffForeignObjOp_Int16 [a,i] = doIndexOffForeignObjOp Int16Rep r a i
940 translateOp [r] IndexOffForeignObjOp_Int32 [a,i] = doIndexOffForeignObjOp Int32Rep r a i
941 translateOp [r] IndexOffForeignObjOp_Int64 [a,i] = doIndexOffForeignObjOp Int64Rep r a i
943 translateOp [r] IndexOffForeignObjOp_Word8 [a,i] = doIndexOffForeignObjOp Word8Rep r a i
944 translateOp [r] IndexOffForeignObjOp_Word16 [a,i] = doIndexOffForeignObjOp Word16Rep r a i
945 translateOp [r] IndexOffForeignObjOp_Word32 [a,i] = doIndexOffForeignObjOp Word32Rep r a i
946 translateOp [r] IndexOffForeignObjOp_Word64 [a,i] = doIndexOffForeignObjOp Word64Rep r a i
950 translateOp [r] IndexOffAddrOp_Char [a,i] = doIndexOffAddrOp Word8Rep r a i
951 translateOp [r] IndexOffAddrOp_WideChar [a,i] = doIndexOffAddrOp Word32Rep r a i
952 translateOp [r] IndexOffAddrOp_Int [a,i] = doIndexOffAddrOp IntRep r a i
953 translateOp [r] IndexOffAddrOp_Word [a,i] = doIndexOffAddrOp WordRep r a i
954 translateOp [r] IndexOffAddrOp_Addr [a,i] = doIndexOffAddrOp AddrRep r a i
955 translateOp [r] IndexOffAddrOp_Float [a,i] = doIndexOffAddrOp FloatRep r a i
956 translateOp [r] IndexOffAddrOp_Double [a,i] = doIndexOffAddrOp DoubleRep r a i
957 translateOp [r] IndexOffAddrOp_StablePtr [a,i] = doIndexOffAddrOp StablePtrRep r a i
959 translateOp [r] IndexOffAddrOp_Int8 [a,i] = doIndexOffAddrOp Int8Rep r a i
960 translateOp [r] IndexOffAddrOp_Int16 [a,i] = doIndexOffAddrOp Int16Rep r a i
961 translateOp [r] IndexOffAddrOp_Int32 [a,i] = doIndexOffAddrOp Int32Rep r a i
962 translateOp [r] IndexOffAddrOp_Int64 [a,i] = doIndexOffAddrOp Int64Rep r a i
964 translateOp [r] IndexOffAddrOp_Word8 [a,i] = doIndexOffAddrOp Word8Rep r a i
965 translateOp [r] IndexOffAddrOp_Word16 [a,i] = doIndexOffAddrOp Word16Rep r a i
966 translateOp [r] IndexOffAddrOp_Word32 [a,i] = doIndexOffAddrOp Word32Rep r a i
967 translateOp [r] IndexOffAddrOp_Word64 [a,i] = doIndexOffAddrOp Word64Rep r a i
969 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
971 translateOp [r] ReadOffAddrOp_Char [a,i] = doIndexOffAddrOp Word8Rep r a i
972 translateOp [r] ReadOffAddrOp_WideChar [a,i] = doIndexOffAddrOp Word32Rep r a i
973 translateOp [r] ReadOffAddrOp_Int [a,i] = doIndexOffAddrOp IntRep r a i
974 translateOp [r] ReadOffAddrOp_Word [a,i] = doIndexOffAddrOp WordRep r a i
975 translateOp [r] ReadOffAddrOp_Addr [a,i] = doIndexOffAddrOp AddrRep r a i
976 translateOp [r] ReadOffAddrOp_Float [a,i] = doIndexOffAddrOp FloatRep r a i
977 translateOp [r] ReadOffAddrOp_Double [a,i] = doIndexOffAddrOp DoubleRep r a i
978 translateOp [r] ReadOffAddrOp_StablePtr [a,i] = doIndexOffAddrOp StablePtrRep r a i
980 translateOp [r] ReadOffAddrOp_Int8 [a,i] = doIndexOffAddrOp Int8Rep r a i
981 translateOp [r] ReadOffAddrOp_Int16 [a,i] = doIndexOffAddrOp Int16Rep r a i
982 translateOp [r] ReadOffAddrOp_Int32 [a,i] = doIndexOffAddrOp Int32Rep r a i
983 translateOp [r] ReadOffAddrOp_Int64 [a,i] = doIndexOffAddrOp Int64Rep r a i
985 translateOp [r] ReadOffAddrOp_Word8 [a,i] = doIndexOffAddrOp Word8Rep r a i
986 translateOp [r] ReadOffAddrOp_Word16 [a,i] = doIndexOffAddrOp Word16Rep r a i
987 translateOp [r] ReadOffAddrOp_Word32 [a,i] = doIndexOffAddrOp Word32Rep r a i
988 translateOp [r] ReadOffAddrOp_Word64 [a,i] = doIndexOffAddrOp Word64Rep r a i
992 translateOp [] WriteOffAddrOp_Char [a,i,x] = doWriteOffAddrOp Word8Rep a i x
993 translateOp [] WriteOffAddrOp_WideChar [a,i,x] = doWriteOffAddrOp Word32Rep a i x
994 translateOp [] WriteOffAddrOp_Int [a,i,x] = doWriteOffAddrOp IntRep a i x
995 translateOp [] WriteOffAddrOp_Word [a,i,x] = doWriteOffAddrOp WordRep a i x
996 translateOp [] WriteOffAddrOp_Addr [a,i,x] = doWriteOffAddrOp AddrRep a i x
997 translateOp [] WriteOffAddrOp_Float [a,i,x] = doWriteOffAddrOp FloatRep a i x
998 translateOp [] WriteOffAddrOp_ForeignObj [a,i,x] = doWriteOffAddrOp ForeignObjRep a i x
999 translateOp [] WriteOffAddrOp_Double [a,i,x] = doWriteOffAddrOp DoubleRep a i x
1000 translateOp [] WriteOffAddrOp_StablePtr [a,i,x] = doWriteOffAddrOp StablePtrRep a i x
1002 translateOp [] WriteOffAddrOp_Int8 [a,i,x] = doWriteOffAddrOp Int8Rep a i x
1003 translateOp [] WriteOffAddrOp_Int16 [a,i,x] = doWriteOffAddrOp Int16Rep a i x
1004 translateOp [] WriteOffAddrOp_Int32 [a,i,x] = doWriteOffAddrOp Int32Rep a i x
1005 translateOp [] WriteOffAddrOp_Int64 [a,i,x] = doWriteOffAddrOp Int64Rep a i x
1007 translateOp [] WriteOffAddrOp_Word8 [a,i,x] = doWriteOffAddrOp Word8Rep a i x
1008 translateOp [] WriteOffAddrOp_Word16 [a,i,x] = doWriteOffAddrOp Word16Rep a i x
1009 translateOp [] WriteOffAddrOp_Word32 [a,i,x] = doWriteOffAddrOp Word32Rep a i x
1010 translateOp [] WriteOffAddrOp_Word64 [a,i,x] = doWriteOffAddrOp Word64Rep a i x
1014 translateOp [r] IndexByteArrayOp_Char [a,i] = doIndexByteArrayOp Word8Rep r a i
1015 translateOp [r] IndexByteArrayOp_WideChar [a,i] = doIndexByteArrayOp Word32Rep r a i
1016 translateOp [r] IndexByteArrayOp_Int [a,i] = doIndexByteArrayOp IntRep r a i
1017 translateOp [r] IndexByteArrayOp_Word [a,i] = doIndexByteArrayOp WordRep r a i
1018 translateOp [r] IndexByteArrayOp_Addr [a,i] = doIndexByteArrayOp AddrRep r a i
1019 translateOp [r] IndexByteArrayOp_Float [a,i] = doIndexByteArrayOp FloatRep r a i
1020 translateOp [r] IndexByteArrayOp_Double [a,i] = doIndexByteArrayOp DoubleRep r a i
1021 translateOp [r] IndexByteArrayOp_StablePtr [a,i] = doIndexByteArrayOp StablePtrRep r a i
1023 translateOp [r] IndexByteArrayOp_Int8 [a,i] = doIndexByteArrayOp Int8Rep r a i
1024 translateOp [r] IndexByteArrayOp_Int16 [a,i] = doIndexByteArrayOp Int16Rep r a i
1025 translateOp [r] IndexByteArrayOp_Int32 [a,i] = doIndexByteArrayOp Int32Rep r a i
1026 translateOp [r] IndexByteArrayOp_Int64 [a,i] = doIndexByteArrayOp Int64Rep r a i
1028 translateOp [r] IndexByteArrayOp_Word8 [a,i] = doIndexByteArrayOp Word8Rep r a i
1029 translateOp [r] IndexByteArrayOp_Word16 [a,i] = doIndexByteArrayOp Word16Rep r a i
1030 translateOp [r] IndexByteArrayOp_Word32 [a,i] = doIndexByteArrayOp Word32Rep r a i
1031 translateOp [r] IndexByteArrayOp_Word64 [a,i] = doIndexByteArrayOp Word64Rep r a i
1033 -- ReadXXXArray, identical to IndexXXXArray.
1035 translateOp [r] ReadByteArrayOp_Char [a,i] = doIndexByteArrayOp Word8Rep r a i
1036 translateOp [r] ReadByteArrayOp_WideChar [a,i] = doIndexByteArrayOp Word32Rep r a i
1037 translateOp [r] ReadByteArrayOp_Int [a,i] = doIndexByteArrayOp IntRep r a i
1038 translateOp [r] ReadByteArrayOp_Word [a,i] = doIndexByteArrayOp WordRep r a i
1039 translateOp [r] ReadByteArrayOp_Addr [a,i] = doIndexByteArrayOp AddrRep r a i
1040 translateOp [r] ReadByteArrayOp_Float [a,i] = doIndexByteArrayOp FloatRep r a i
1041 translateOp [r] ReadByteArrayOp_Double [a,i] = doIndexByteArrayOp DoubleRep r a i
1042 translateOp [r] ReadByteArrayOp_StablePtr [a,i] = doIndexByteArrayOp StablePtrRep r a i
1044 translateOp [r] ReadByteArrayOp_Int8 [a,i] = doIndexByteArrayOp Int8Rep r a i
1045 translateOp [r] ReadByteArrayOp_Int16 [a,i] = doIndexByteArrayOp Int16Rep r a i
1046 translateOp [r] ReadByteArrayOp_Int32 [a,i] = doIndexByteArrayOp Int32Rep r a i
1047 translateOp [r] ReadByteArrayOp_Int64 [a,i] = doIndexByteArrayOp Int64Rep r a i
1049 translateOp [r] ReadByteArrayOp_Word8 [a,i] = doIndexByteArrayOp Word8Rep r a i
1050 translateOp [r] ReadByteArrayOp_Word16 [a,i] = doIndexByteArrayOp Word16Rep r a i
1051 translateOp [r] ReadByteArrayOp_Word32 [a,i] = doIndexByteArrayOp Word32Rep r a i
1052 translateOp [r] ReadByteArrayOp_Word64 [a,i] = doIndexByteArrayOp Word64Rep r a i
1056 translateOp [] WriteByteArrayOp_Char [a,i,x] = doWriteByteArrayOp Word8Rep a i x
1057 translateOp [] WriteByteArrayOp_WideChar [a,i,x] = doWriteByteArrayOp Word32Rep a i x
1058 translateOp [] WriteByteArrayOp_Int [a,i,x] = doWriteByteArrayOp IntRep a i x
1059 translateOp [] WriteByteArrayOp_Word [a,i,x] = doWriteByteArrayOp WordRep a i x
1060 translateOp [] WriteByteArrayOp_Addr [a,i,x] = doWriteByteArrayOp AddrRep a i x
1061 translateOp [] WriteByteArrayOp_Float [a,i,x] = doWriteByteArrayOp FloatRep a i x
1062 translateOp [] WriteByteArrayOp_Double [a,i,x] = doWriteByteArrayOp DoubleRep a i x
1063 translateOp [] WriteByteArrayOp_StablePtr [a,i,x] = doWriteByteArrayOp StablePtrRep a i x
1065 translateOp [] WriteByteArrayOp_Int8 [a,i,x] = doWriteByteArrayOp Int8Rep a i x
1066 translateOp [] WriteByteArrayOp_Int16 [a,i,x] = doWriteByteArrayOp Int16Rep a i x
1067 translateOp [] WriteByteArrayOp_Int32 [a,i,x] = doWriteByteArrayOp Int32Rep a i x
1068 translateOp [] WriteByteArrayOp_Int64 [a,i,x] = doWriteByteArrayOp Int64Rep a i x
1070 translateOp [] WriteByteArrayOp_Word8 [a,i,x] = doWriteByteArrayOp Word8Rep a i x
1071 translateOp [] WriteByteArrayOp_Word16 [a,i,x] = doWriteByteArrayOp Word16Rep a i x
1072 translateOp [] WriteByteArrayOp_Word32 [a,i,x] = doWriteByteArrayOp Word32Rep a i x
1073 translateOp [] WriteByteArrayOp_Word64 [a,i,x] = doWriteByteArrayOp Word64Rep a i x
1075 -- Native word signless ops
1077 translateOp [r] IntAddOp [a1,a2] = Just (Just r, MO_Nat_Add, [a1,a2])
1078 translateOp [r] IntSubOp [a1,a2] = Just (Just r, MO_Nat_Sub, [a1,a2])
1079 translateOp [r] WordAddOp [a1,a2] = Just (Just r, MO_Nat_Add, [a1,a2])
1080 translateOp [r] WordSubOp [a1,a2] = Just (Just r, MO_Nat_Sub, [a1,a2])
1081 translateOp [r] AddrAddOp [a1,a2] = Just (Just r, MO_Nat_Add, [a1,a2])
1082 translateOp [r] AddrSubOp [a1,a2] = Just (Just r, MO_Nat_Sub, [a1,a2])
1084 translateOp [r] IntEqOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1085 translateOp [r] IntNeOp [a1,a2] = Just (Just r, MO_Nat_Ne, [a1,a2])
1086 translateOp [r] WordEqOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1087 translateOp [r] WordNeOp [a1,a2] = Just (Just r, MO_Nat_Ne, [a1,a2])
1088 translateOp [r] AddrEqOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1089 translateOp [r] AddrNeOp [a1,a2] = Just (Just r, MO_Nat_Ne, [a1,a2])
1091 translateOp [r] AndOp [a1,a2] = Just (Just r, MO_Nat_And, [a1,a2])
1092 translateOp [r] OrOp [a1,a2] = Just (Just r, MO_Nat_Or, [a1,a2])
1093 translateOp [r] XorOp [a1,a2] = Just (Just r, MO_Nat_Xor, [a1,a2])
1094 translateOp [r] NotOp [a1] = Just (Just r, MO_Nat_Not, [a1])
1096 -- Native word signed ops
1098 translateOp [r] IntMulOp [a1,a2] = Just (Just r, MO_NatS_Mul, [a1,a2])
1099 translateOp [r] IntMulMayOfloOp [a1,a2] = Just (Just r, MO_NatS_MulMayOflo, [a1,a2])
1100 translateOp [r] IntQuotOp [a1,a2] = Just (Just r, MO_NatS_Quot, [a1,a2])
1101 translateOp [r] IntRemOp [a1,a2] = Just (Just r, MO_NatS_Rem, [a1,a2])
1102 translateOp [r] IntNegOp [a1] = Just (Just r, MO_NatS_Neg, [a1])
1104 translateOp [r] IntGeOp [a1,a2] = Just (Just r, MO_NatS_Ge, [a1,a2])
1105 translateOp [r] IntLeOp [a1,a2] = Just (Just r, MO_NatS_Le, [a1,a2])
1106 translateOp [r] IntGtOp [a1,a2] = Just (Just r, MO_NatS_Gt, [a1,a2])
1107 translateOp [r] IntLtOp [a1,a2] = Just (Just r, MO_NatS_Lt, [a1,a2])
1110 -- Native word unsigned ops
1112 translateOp [r] WordGeOp [a1,a2] = Just (Just r, MO_NatU_Ge, [a1,a2])
1113 translateOp [r] WordLeOp [a1,a2] = Just (Just r, MO_NatU_Le, [a1,a2])
1114 translateOp [r] WordGtOp [a1,a2] = Just (Just r, MO_NatU_Gt, [a1,a2])
1115 translateOp [r] WordLtOp [a1,a2] = Just (Just r, MO_NatU_Lt, [a1,a2])
1117 translateOp [r] WordMulOp [a1,a2] = Just (Just r, MO_NatU_Mul, [a1,a2])
1118 translateOp [r] WordQuotOp [a1,a2] = Just (Just r, MO_NatU_Quot, [a1,a2])
1119 translateOp [r] WordRemOp [a1,a2] = Just (Just r, MO_NatU_Rem, [a1,a2])
1121 translateOp [r] AddrGeOp [a1,a2] = Just (Just r, MO_NatU_Ge, [a1,a2])
1122 translateOp [r] AddrLeOp [a1,a2] = Just (Just r, MO_NatU_Le, [a1,a2])
1123 translateOp [r] AddrGtOp [a1,a2] = Just (Just r, MO_NatU_Gt, [a1,a2])
1124 translateOp [r] AddrLtOp [a1,a2] = Just (Just r, MO_NatU_Lt, [a1,a2])
1126 -- 32-bit unsigned ops
1128 translateOp [r] CharEqOp [a1,a2] = Just (Just r, MO_32U_Eq, [a1,a2])
1129 translateOp [r] CharNeOp [a1,a2] = Just (Just r, MO_32U_Ne, [a1,a2])
1130 translateOp [r] CharGeOp [a1,a2] = Just (Just r, MO_32U_Ge, [a1,a2])
1131 translateOp [r] CharLeOp [a1,a2] = Just (Just r, MO_32U_Le, [a1,a2])
1132 translateOp [r] CharGtOp [a1,a2] = Just (Just r, MO_32U_Gt, [a1,a2])
1133 translateOp [r] CharLtOp [a1,a2] = Just (Just r, MO_32U_Lt, [a1,a2])
1137 translateOp [r] DoubleEqOp [a1,a2] = Just (Just r, MO_Dbl_Eq, [a1,a2])
1138 translateOp [r] DoubleNeOp [a1,a2] = Just (Just r, MO_Dbl_Ne, [a1,a2])
1139 translateOp [r] DoubleGeOp [a1,a2] = Just (Just r, MO_Dbl_Ge, [a1,a2])
1140 translateOp [r] DoubleLeOp [a1,a2] = Just (Just r, MO_Dbl_Le, [a1,a2])
1141 translateOp [r] DoubleGtOp [a1,a2] = Just (Just r, MO_Dbl_Gt, [a1,a2])
1142 translateOp [r] DoubleLtOp [a1,a2] = Just (Just r, MO_Dbl_Lt, [a1,a2])
1144 translateOp [r] DoubleAddOp [a1,a2] = Just (Just r, MO_Dbl_Add, [a1,a2])
1145 translateOp [r] DoubleSubOp [a1,a2] = Just (Just r, MO_Dbl_Sub, [a1,a2])
1146 translateOp [r] DoubleMulOp [a1,a2] = Just (Just r, MO_Dbl_Mul, [a1,a2])
1147 translateOp [r] DoubleDivOp [a1,a2] = Just (Just r, MO_Dbl_Div, [a1,a2])
1148 translateOp [r] DoublePowerOp [a1,a2] = Just (Just r, MO_Dbl_Pwr, [a1,a2])
1150 translateOp [r] DoubleSinOp [a1] = Just (Just r, MO_Dbl_Sin, [a1])
1151 translateOp [r] DoubleCosOp [a1] = Just (Just r, MO_Dbl_Cos, [a1])
1152 translateOp [r] DoubleTanOp [a1] = Just (Just r, MO_Dbl_Tan, [a1])
1153 translateOp [r] DoubleSinhOp [a1] = Just (Just r, MO_Dbl_Sinh, [a1])
1154 translateOp [r] DoubleCoshOp [a1] = Just (Just r, MO_Dbl_Cosh, [a1])
1155 translateOp [r] DoubleTanhOp [a1] = Just (Just r, MO_Dbl_Tanh, [a1])
1156 translateOp [r] DoubleAsinOp [a1] = Just (Just r, MO_Dbl_Asin, [a1])
1157 translateOp [r] DoubleAcosOp [a1] = Just (Just r, MO_Dbl_Acos, [a1])
1158 translateOp [r] DoubleAtanOp [a1] = Just (Just r, MO_Dbl_Atan, [a1])
1159 translateOp [r] DoubleLogOp [a1] = Just (Just r, MO_Dbl_Log, [a1])
1160 translateOp [r] DoubleExpOp [a1] = Just (Just r, MO_Dbl_Exp, [a1])
1161 translateOp [r] DoubleSqrtOp [a1] = Just (Just r, MO_Dbl_Sqrt, [a1])
1162 translateOp [r] DoubleNegOp [a1] = Just (Just r, MO_Dbl_Neg, [a1])
1166 translateOp [r] FloatEqOp [a1,a2] = Just (Just r, MO_Flt_Eq, [a1,a2])
1167 translateOp [r] FloatNeOp [a1,a2] = Just (Just r, MO_Flt_Ne, [a1,a2])
1168 translateOp [r] FloatGeOp [a1,a2] = Just (Just r, MO_Flt_Ge, [a1,a2])
1169 translateOp [r] FloatLeOp [a1,a2] = Just (Just r, MO_Flt_Le, [a1,a2])
1170 translateOp [r] FloatGtOp [a1,a2] = Just (Just r, MO_Flt_Gt, [a1,a2])
1171 translateOp [r] FloatLtOp [a1,a2] = Just (Just r, MO_Flt_Lt, [a1,a2])
1173 translateOp [r] FloatAddOp [a1,a2] = Just (Just r, MO_Flt_Add, [a1,a2])
1174 translateOp [r] FloatSubOp [a1,a2] = Just (Just r, MO_Flt_Sub, [a1,a2])
1175 translateOp [r] FloatMulOp [a1,a2] = Just (Just r, MO_Flt_Mul, [a1,a2])
1176 translateOp [r] FloatDivOp [a1,a2] = Just (Just r, MO_Flt_Div, [a1,a2])
1177 translateOp [r] FloatPowerOp [a1,a2] = Just (Just r, MO_Flt_Pwr, [a1,a2])
1179 translateOp [r] FloatSinOp [a1] = Just (Just r, MO_Flt_Sin, [a1])
1180 translateOp [r] FloatCosOp [a1] = Just (Just r, MO_Flt_Cos, [a1])
1181 translateOp [r] FloatTanOp [a1] = Just (Just r, MO_Flt_Tan, [a1])
1182 translateOp [r] FloatSinhOp [a1] = Just (Just r, MO_Flt_Sinh, [a1])
1183 translateOp [r] FloatCoshOp [a1] = Just (Just r, MO_Flt_Cosh, [a1])
1184 translateOp [r] FloatTanhOp [a1] = Just (Just r, MO_Flt_Tanh, [a1])
1185 translateOp [r] FloatAsinOp [a1] = Just (Just r, MO_Flt_Asin, [a1])
1186 translateOp [r] FloatAcosOp [a1] = Just (Just r, MO_Flt_Acos, [a1])
1187 translateOp [r] FloatAtanOp [a1] = Just (Just r, MO_Flt_Atan, [a1])
1188 translateOp [r] FloatLogOp [a1] = Just (Just r, MO_Flt_Log, [a1])
1189 translateOp [r] FloatExpOp [a1] = Just (Just r, MO_Flt_Exp, [a1])
1190 translateOp [r] FloatSqrtOp [a1] = Just (Just r, MO_Flt_Sqrt, [a1])
1191 translateOp [r] FloatNegOp [a1] = Just (Just r, MO_Flt_Neg, [a1])
1195 translateOp [r] Int2DoubleOp [a1] = Just (Just r, MO_NatS_to_Dbl, [a1])
1196 translateOp [r] Double2IntOp [a1] = Just (Just r, MO_Dbl_to_NatS, [a1])
1198 translateOp [r] Int2FloatOp [a1] = Just (Just r, MO_NatS_to_Flt, [a1])
1199 translateOp [r] Float2IntOp [a1] = Just (Just r, MO_Flt_to_NatS, [a1])
1201 translateOp [r] Float2DoubleOp [a1] = Just (Just r, MO_Flt_to_Dbl, [a1])
1202 translateOp [r] Double2FloatOp [a1] = Just (Just r, MO_Dbl_to_Flt, [a1])
1204 translateOp [r] Int2WordOp [a1] = Just (Just r, MO_NatS_to_NatU, [a1])
1205 translateOp [r] Word2IntOp [a1] = Just (Just r, MO_NatU_to_NatS, [a1])
1207 translateOp [r] Int2AddrOp [a1] = Just (Just r, MO_NatS_to_NatP, [a1])
1208 translateOp [r] Addr2IntOp [a1] = Just (Just r, MO_NatP_to_NatS, [a1])
1210 translateOp [r] OrdOp [a1] = Just (Just r, MO_32U_to_NatS, [a1])
1211 translateOp [r] ChrOp [a1] = Just (Just r, MO_NatS_to_32U, [a1])
1213 translateOp [r] Narrow8IntOp [a1] = Just (Just r, MO_8S_to_NatS, [a1])
1214 translateOp [r] Narrow16IntOp [a1] = Just (Just r, MO_16S_to_NatS, [a1])
1215 translateOp [r] Narrow32IntOp [a1] = Just (Just r, MO_32S_to_NatS, [a1])
1217 translateOp [r] Narrow8WordOp [a1] = Just (Just r, MO_8U_to_NatU, [a1])
1218 translateOp [r] Narrow16WordOp [a1] = Just (Just r, MO_16U_to_NatU, [a1])
1219 translateOp [r] Narrow32WordOp [a1] = Just (Just r, MO_32U_to_NatU, [a1])
1221 -- Word comparisons masquerading as more exotic things.
1223 translateOp [r] SameMutVarOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1224 translateOp [r] SameMVarOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1225 translateOp [r] SameMutableArrayOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1226 translateOp [r] SameMutableByteArrayOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1227 translateOp [r] EqForeignObj [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1228 translateOp [r] EqStablePtrOp [a1,a2] = Just (Just r, MO_Nat_Eq, [a1,a2])
1230 translateOp _ _ _ = Nothing