1 -----------------------------------------------------------------------------
3 -- Code generation for PrimOps.
5 -- (c) The University of Glasgow 2004
7 -----------------------------------------------------------------------------
13 #include "HsVersions.h"
15 import ForeignCall ( CCallConv(CCallConv) )
16 import StgSyn ( StgLiveVars, StgArg )
17 import CgBindery ( getVolatileRegs, getArgAmodes )
19 import CgInfoTbls ( getConstrTag )
20 import CgUtils ( cmmOffsetW, cmmOffsetB, cmmLoadIndexW )
23 import CLabel ( mkMAP_FROZEN_infoLabel, mkMAP_DIRTY_infoLabel,
24 mkDirty_MUT_VAR_Label, mkRtsCodeLabel )
28 import PrimOp ( PrimOp(..) )
29 import SMRep ( tablesNextToCode )
30 import Constants ( wORD_SIZE, wORD_SIZE_IN_BITS )
31 import StaticFlags ( opt_Parallel )
34 -- ---------------------------------------------------------------------------
35 -- Code generation for PrimOps
37 cgPrimOp :: [CmmReg] -- where to put the results
39 -> [StgArg] -- arguments
40 -> StgLiveVars -- live vars, in case we need to save them
43 cgPrimOp results op args live
44 = do arg_exprs <- getArgAmodes args
45 let non_void_args = [ e | (r,e) <- arg_exprs, nonVoidArg r ]
46 emitPrimOp results op non_void_args live
49 emitPrimOp :: [CmmReg] -- where to put the results
51 -> [CmmExpr] -- arguments
52 -> StgLiveVars -- live vars, in case we need to save them
55 -- First we handle various awkward cases specially. The remaining
56 -- easy cases are then handled by translateOp, defined below.
58 emitPrimOp [res_r,res_c] IntAddCOp [aa,bb] live
60 With some bit-twiddling, we can define int{Add,Sub}Czh portably in
61 C, and without needing any comparisons. This may not be the
62 fastest way to do it - if you have better code, please send it! --SDM
64 Return : r = a + b, c = 0 if no overflow, 1 on overflow.
66 We currently don't make use of the r value if c is != 0 (i.e.
67 overflow), we just convert to big integers and try again. This
68 could be improved by making r and c the correct values for
69 plugging into a new J#.
71 { r = ((I_)(a)) + ((I_)(b)); \
72 c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
73 >> (BITS_IN (I_) - 1); \
75 Wading through the mass of bracketry, it seems to reduce to:
76 c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
80 CmmAssign res_r (CmmMachOp mo_wordAdd [aa,bb]),
82 CmmMachOp mo_wordUShr [
83 CmmMachOp mo_wordAnd [
84 CmmMachOp mo_wordNot [CmmMachOp mo_wordXor [aa,bb]],
85 CmmMachOp mo_wordXor [aa, CmmReg res_r]
87 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
92 emitPrimOp [res_r,res_c] IntSubCOp [aa,bb] live
94 #define subIntCzh(r,c,a,b) \
95 { r = ((I_)(a)) - ((I_)(b)); \
96 c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
97 >> (BITS_IN (I_) - 1); \
100 c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
103 CmmAssign res_r (CmmMachOp mo_wordSub [aa,bb]),
105 CmmMachOp mo_wordUShr [
106 CmmMachOp mo_wordAnd [
107 CmmMachOp mo_wordXor [aa,bb],
108 CmmMachOp mo_wordXor [aa, CmmReg res_r]
110 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
115 emitPrimOp [res] ParOp [arg] live
117 -- for now, just implement this in a C function
118 -- later, we might want to inline it.
119 vols <- getVolatileRegs live
120 stmtC (CmmCall (CmmForeignCall newspark CCallConv) [(res,NoHint)]
121 [(CmmReg (CmmGlobal BaseReg), PtrHint),
125 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
127 emitPrimOp [res] ReadMutVarOp [mutv] live
128 = stmtC (CmmAssign res (cmmLoadIndexW mutv fixedHdrSize))
130 emitPrimOp [] WriteMutVarOp [mutv,var] live
132 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
133 vols <- getVolatileRegs live
134 stmtC (CmmCall (CmmForeignCall (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
137 [(CmmReg (CmmGlobal BaseReg), PtrHint),
141 -- #define sizzeofByteArrayzh(r,a) \
142 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
143 emitPrimOp [res] SizeofByteArrayOp [arg] live
145 CmmAssign res (CmmMachOp mo_wordMul [
146 cmmLoadIndexW arg fixedHdrSize,
147 CmmLit (mkIntCLit wORD_SIZE)
150 -- #define sizzeofMutableByteArrayzh(r,a) \
151 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
152 emitPrimOp [res] SizeofMutableByteArrayOp [arg] live
153 = emitPrimOp [res] SizeofByteArrayOp [arg] live
156 -- #define touchzh(o) /* nothing */
157 emitPrimOp [] TouchOp [arg] live
160 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
161 emitPrimOp [res] ByteArrayContents_Char [arg] live
162 = stmtC (CmmAssign res (cmmOffsetB arg arrWordsHdrSize))
164 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
165 emitPrimOp [res] StableNameToIntOp [arg] live
166 = stmtC (CmmAssign res (cmmLoadIndexW arg fixedHdrSize))
168 -- #define eqStableNamezh(r,sn1,sn2) \
169 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
170 emitPrimOp [res] EqStableNameOp [arg1,arg2] live
171 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [
172 cmmLoadIndexW arg1 fixedHdrSize,
173 cmmLoadIndexW arg2 fixedHdrSize
177 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
178 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [arg1,arg2]))
180 -- #define addrToHValuezh(r,a) r=(P_)a
181 emitPrimOp [res] AddrToHValueOp [arg] live
182 = stmtC (CmmAssign res arg)
184 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
185 emitPrimOp [res] DataToTagOp [arg] live
186 = stmtC (CmmAssign res (getConstrTag arg))
188 {- Freezing arrays-of-ptrs requires changing an info table, for the
189 benefit of the generational collector. It needs to scavenge mutable
190 objects, even if they are in old space. When they become immutable,
191 they can be removed from this scavenge list. -}
193 -- #define unsafeFreezzeArrayzh(r,a)
195 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN0_info);
198 emitPrimOp [res] UnsafeFreezeArrayOp [arg] live
199 = stmtsC [ setInfo arg (CmmLit (CmmLabel mkMAP_FROZEN_infoLabel)),
202 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
203 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
204 = stmtC (CmmAssign res arg)
206 -- Reading/writing pointer arrays
208 emitPrimOp [r] ReadArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
209 emitPrimOp [r] IndexArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
210 emitPrimOp [] WriteArrayOp [obj,ix,v] live = doWritePtrArrayOp obj ix v
214 emitPrimOp res IndexOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
215 emitPrimOp res IndexOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
216 emitPrimOp res IndexOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
217 emitPrimOp res IndexOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
218 emitPrimOp res IndexOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
219 emitPrimOp res IndexOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
220 emitPrimOp res IndexOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
221 emitPrimOp res IndexOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
222 emitPrimOp res IndexOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
223 emitPrimOp res IndexOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
224 emitPrimOp res IndexOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
225 emitPrimOp res IndexOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
226 emitPrimOp res IndexOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
227 emitPrimOp res IndexOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
228 emitPrimOp res IndexOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
229 emitPrimOp res IndexOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
231 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
233 emitPrimOp res ReadOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
234 emitPrimOp res ReadOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
235 emitPrimOp res ReadOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
236 emitPrimOp res ReadOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
237 emitPrimOp res ReadOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
238 emitPrimOp res ReadOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
239 emitPrimOp res ReadOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
240 emitPrimOp res ReadOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
241 emitPrimOp res ReadOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
242 emitPrimOp res ReadOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
243 emitPrimOp res ReadOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
244 emitPrimOp res ReadOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
245 emitPrimOp res ReadOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
246 emitPrimOp res ReadOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
247 emitPrimOp res ReadOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
248 emitPrimOp res ReadOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
252 emitPrimOp res IndexByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
253 emitPrimOp res IndexByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
254 emitPrimOp res IndexByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
255 emitPrimOp res IndexByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
256 emitPrimOp res IndexByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
257 emitPrimOp res IndexByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
258 emitPrimOp res IndexByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
259 emitPrimOp res IndexByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
260 emitPrimOp res IndexByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
261 emitPrimOp res IndexByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
262 emitPrimOp res IndexByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
263 emitPrimOp res IndexByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
264 emitPrimOp res IndexByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
265 emitPrimOp res IndexByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
266 emitPrimOp res IndexByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
267 emitPrimOp res IndexByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
269 -- ReadXXXArray, identical to IndexXXXArray.
271 emitPrimOp res ReadByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
272 emitPrimOp res ReadByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
273 emitPrimOp res ReadByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
274 emitPrimOp res ReadByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
275 emitPrimOp res ReadByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
276 emitPrimOp res ReadByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
277 emitPrimOp res ReadByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
278 emitPrimOp res ReadByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
279 emitPrimOp res ReadByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
280 emitPrimOp res ReadByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
281 emitPrimOp res ReadByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
282 emitPrimOp res ReadByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
283 emitPrimOp res ReadByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
284 emitPrimOp res ReadByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
285 emitPrimOp res ReadByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
286 emitPrimOp res ReadByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
290 emitPrimOp res WriteOffAddrOp_Char args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
291 emitPrimOp res WriteOffAddrOp_WideChar args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
292 emitPrimOp res WriteOffAddrOp_Int args live = doWriteOffAddrOp Nothing wordRep res args
293 emitPrimOp res WriteOffAddrOp_Word args live = doWriteOffAddrOp Nothing wordRep res args
294 emitPrimOp res WriteOffAddrOp_Addr args live = doWriteOffAddrOp Nothing wordRep res args
295 emitPrimOp res WriteOffAddrOp_Float args live = doWriteOffAddrOp Nothing F32 res args
296 emitPrimOp res WriteOffAddrOp_Double args live = doWriteOffAddrOp Nothing F64 res args
297 emitPrimOp res WriteOffAddrOp_StablePtr args live = doWriteOffAddrOp Nothing wordRep res args
298 emitPrimOp res WriteOffAddrOp_Int8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
299 emitPrimOp res WriteOffAddrOp_Int16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
300 emitPrimOp res WriteOffAddrOp_Int32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
301 emitPrimOp res WriteOffAddrOp_Int64 args live = doWriteOffAddrOp Nothing I64 res args
302 emitPrimOp res WriteOffAddrOp_Word8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
303 emitPrimOp res WriteOffAddrOp_Word16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
304 emitPrimOp res WriteOffAddrOp_Word32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
305 emitPrimOp res WriteOffAddrOp_Word64 args live = doWriteOffAddrOp Nothing I64 res args
309 emitPrimOp res WriteByteArrayOp_Char args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
310 emitPrimOp res WriteByteArrayOp_WideChar args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
311 emitPrimOp res WriteByteArrayOp_Int args live = doWriteByteArrayOp Nothing wordRep res args
312 emitPrimOp res WriteByteArrayOp_Word args live = doWriteByteArrayOp Nothing wordRep res args
313 emitPrimOp res WriteByteArrayOp_Addr args live = doWriteByteArrayOp Nothing wordRep res args
314 emitPrimOp res WriteByteArrayOp_Float args live = doWriteByteArrayOp Nothing F32 res args
315 emitPrimOp res WriteByteArrayOp_Double args live = doWriteByteArrayOp Nothing F64 res args
316 emitPrimOp res WriteByteArrayOp_StablePtr args live = doWriteByteArrayOp Nothing wordRep res args
317 emitPrimOp res WriteByteArrayOp_Int8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
318 emitPrimOp res WriteByteArrayOp_Int16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
319 emitPrimOp res WriteByteArrayOp_Int32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
320 emitPrimOp res WriteByteArrayOp_Int64 args live = doWriteByteArrayOp Nothing I64 res args
321 emitPrimOp res WriteByteArrayOp_Word8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
322 emitPrimOp res WriteByteArrayOp_Word16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
323 emitPrimOp res WriteByteArrayOp_Word32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
324 emitPrimOp res WriteByteArrayOp_Word64 args live = doWriteByteArrayOp Nothing I64 res args
327 -- The rest just translate straightforwardly
328 emitPrimOp [res] op [arg] live
330 = stmtC (CmmAssign res arg)
332 | Just (mop,rep) <- narrowOp op
333 = stmtC (CmmAssign res (CmmMachOp (mop rep wordRep) [
334 CmmMachOp (mop wordRep rep) [arg]]))
336 emitPrimOp [res] op args live
337 | Just prim <- callishOp op
338 = do vols <- getVolatileRegs live
339 stmtC (CmmCall (CmmPrim prim) [(res,NoHint)]
340 [(a,NoHint) | a<-args] (Just vols)) -- ToDo: hints?
342 | Just mop <- translateOp op
343 = let stmt = CmmAssign res (CmmMachOp mop args) in
347 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
350 -- These PrimOps are NOPs in Cmm
352 nopOp Int2WordOp = True
353 nopOp Word2IntOp = True
354 nopOp Int2AddrOp = True
355 nopOp Addr2IntOp = True
356 nopOp ChrOp = True -- Int# and Char# are rep'd the same
360 -- These PrimOps turn into double casts
362 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
363 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
364 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
365 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
366 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
367 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
370 -- Native word signless ops
372 translateOp IntAddOp = Just mo_wordAdd
373 translateOp IntSubOp = Just mo_wordSub
374 translateOp WordAddOp = Just mo_wordAdd
375 translateOp WordSubOp = Just mo_wordSub
376 translateOp AddrAddOp = Just mo_wordAdd
377 translateOp AddrSubOp = Just mo_wordSub
379 translateOp IntEqOp = Just mo_wordEq
380 translateOp IntNeOp = Just mo_wordNe
381 translateOp WordEqOp = Just mo_wordEq
382 translateOp WordNeOp = Just mo_wordNe
383 translateOp AddrEqOp = Just mo_wordEq
384 translateOp AddrNeOp = Just mo_wordNe
386 translateOp AndOp = Just mo_wordAnd
387 translateOp OrOp = Just mo_wordOr
388 translateOp XorOp = Just mo_wordXor
389 translateOp NotOp = Just mo_wordNot
390 translateOp SllOp = Just mo_wordShl
391 translateOp SrlOp = Just mo_wordUShr
393 translateOp AddrRemOp = Just mo_wordURem
395 -- Native word signed ops
397 translateOp IntMulOp = Just mo_wordMul
398 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
399 translateOp IntQuotOp = Just mo_wordSQuot
400 translateOp IntRemOp = Just mo_wordSRem
401 translateOp IntNegOp = Just mo_wordSNeg
404 translateOp IntGeOp = Just mo_wordSGe
405 translateOp IntLeOp = Just mo_wordSLe
406 translateOp IntGtOp = Just mo_wordSGt
407 translateOp IntLtOp = Just mo_wordSLt
409 translateOp ISllOp = Just mo_wordShl
410 translateOp ISraOp = Just mo_wordSShr
411 translateOp ISrlOp = Just mo_wordUShr
413 -- Native word unsigned ops
415 translateOp WordGeOp = Just mo_wordUGe
416 translateOp WordLeOp = Just mo_wordULe
417 translateOp WordGtOp = Just mo_wordUGt
418 translateOp WordLtOp = Just mo_wordULt
420 translateOp WordMulOp = Just mo_wordMul
421 translateOp WordQuotOp = Just mo_wordUQuot
422 translateOp WordRemOp = Just mo_wordURem
424 translateOp AddrGeOp = Just mo_wordUGe
425 translateOp AddrLeOp = Just mo_wordULe
426 translateOp AddrGtOp = Just mo_wordUGt
427 translateOp AddrLtOp = Just mo_wordULt
431 translateOp CharEqOp = Just (MO_Eq wordRep)
432 translateOp CharNeOp = Just (MO_Ne wordRep)
433 translateOp CharGeOp = Just (MO_U_Ge wordRep)
434 translateOp CharLeOp = Just (MO_U_Le wordRep)
435 translateOp CharGtOp = Just (MO_U_Gt wordRep)
436 translateOp CharLtOp = Just (MO_U_Lt wordRep)
440 translateOp DoubleEqOp = Just (MO_Eq F64)
441 translateOp DoubleNeOp = Just (MO_Ne F64)
442 translateOp DoubleGeOp = Just (MO_S_Ge F64)
443 translateOp DoubleLeOp = Just (MO_S_Le F64)
444 translateOp DoubleGtOp = Just (MO_S_Gt F64)
445 translateOp DoubleLtOp = Just (MO_S_Lt F64)
447 translateOp DoubleAddOp = Just (MO_Add F64)
448 translateOp DoubleSubOp = Just (MO_Sub F64)
449 translateOp DoubleMulOp = Just (MO_Mul F64)
450 translateOp DoubleDivOp = Just (MO_S_Quot F64)
451 translateOp DoubleNegOp = Just (MO_S_Neg F64)
455 translateOp FloatEqOp = Just (MO_Eq F32)
456 translateOp FloatNeOp = Just (MO_Ne F32)
457 translateOp FloatGeOp = Just (MO_S_Ge F32)
458 translateOp FloatLeOp = Just (MO_S_Le F32)
459 translateOp FloatGtOp = Just (MO_S_Gt F32)
460 translateOp FloatLtOp = Just (MO_S_Lt F32)
462 translateOp FloatAddOp = Just (MO_Add F32)
463 translateOp FloatSubOp = Just (MO_Sub F32)
464 translateOp FloatMulOp = Just (MO_Mul F32)
465 translateOp FloatDivOp = Just (MO_S_Quot F32)
466 translateOp FloatNegOp = Just (MO_S_Neg F32)
470 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
471 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
473 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
474 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
476 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
477 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
479 -- Word comparisons masquerading as more exotic things.
481 translateOp SameMutVarOp = Just mo_wordEq
482 translateOp SameMVarOp = Just mo_wordEq
483 translateOp SameMutableArrayOp = Just mo_wordEq
484 translateOp SameMutableByteArrayOp = Just mo_wordEq
485 translateOp SameTVarOp = Just mo_wordEq
486 translateOp EqStablePtrOp = Just mo_wordEq
488 translateOp _ = Nothing
490 -- These primops are implemented by CallishMachOps, because they sometimes
491 -- turn into foreign calls depending on the backend.
493 callishOp DoublePowerOp = Just MO_F64_Pwr
494 callishOp DoubleSinOp = Just MO_F64_Sin
495 callishOp DoubleCosOp = Just MO_F64_Cos
496 callishOp DoubleTanOp = Just MO_F64_Tan
497 callishOp DoubleSinhOp = Just MO_F64_Sinh
498 callishOp DoubleCoshOp = Just MO_F64_Cosh
499 callishOp DoubleTanhOp = Just MO_F64_Tanh
500 callishOp DoubleAsinOp = Just MO_F64_Asin
501 callishOp DoubleAcosOp = Just MO_F64_Acos
502 callishOp DoubleAtanOp = Just MO_F64_Atan
503 callishOp DoubleLogOp = Just MO_F64_Log
504 callishOp DoubleExpOp = Just MO_F64_Exp
505 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
507 callishOp FloatPowerOp = Just MO_F32_Pwr
508 callishOp FloatSinOp = Just MO_F32_Sin
509 callishOp FloatCosOp = Just MO_F32_Cos
510 callishOp FloatTanOp = Just MO_F32_Tan
511 callishOp FloatSinhOp = Just MO_F32_Sinh
512 callishOp FloatCoshOp = Just MO_F32_Cosh
513 callishOp FloatTanhOp = Just MO_F32_Tanh
514 callishOp FloatAsinOp = Just MO_F32_Asin
515 callishOp FloatAcosOp = Just MO_F32_Acos
516 callishOp FloatAtanOp = Just MO_F32_Atan
517 callishOp FloatLogOp = Just MO_F32_Log
518 callishOp FloatExpOp = Just MO_F32_Exp
519 callishOp FloatSqrtOp = Just MO_F32_Sqrt
521 callishOp _ = Nothing
523 ------------------------------------------------------------------------------
524 -- Helpers for translating various minor variants of array indexing.
526 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
527 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
528 doIndexOffAddrOp _ _ _ _
529 = panic "CgPrimOp: doIndexOffAddrOp"
531 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
532 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
533 doIndexByteArrayOp _ _ _ _
534 = panic "CgPrimOp: doIndexByteArrayOp"
536 doReadPtrArrayOp res addr idx
537 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
540 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
541 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
542 doWriteOffAddrOp _ _ _ _
543 = panic "CgPrimOp: doWriteOffAddrOp"
545 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
546 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
547 doWriteByteArrayOp _ _ _ _
548 = panic "CgPrimOp: doWriteByteArrayOp"
550 doWritePtrArrayOp addr idx val
551 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
552 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
555 mkBasicIndexedRead off Nothing read_rep res base idx
556 = stmtC (CmmAssign res (cmmLoadIndexOffExpr off read_rep base idx))
557 mkBasicIndexedRead off (Just cast) read_rep res base idx
558 = stmtC (CmmAssign res (CmmMachOp cast [
559 cmmLoadIndexOffExpr off read_rep base idx]))
561 mkBasicIndexedWrite off Nothing write_rep base idx val
562 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
563 mkBasicIndexedWrite off (Just cast) write_rep base idx val
564 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
566 -- ----------------------------------------------------------------------------
569 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
570 cmmIndexOffExpr off rep base idx
571 = cmmIndexExpr rep (cmmOffsetB base off) idx
573 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
574 cmmLoadIndexOffExpr off rep base idx
575 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
577 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
578 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr