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 CgForeignCall ( emitForeignCall' )
18 import CgBindery ( getVolatileRegs, getArgAmodes )
20 import CgInfoTbls ( getConstrTag )
21 import CgUtils ( cmmOffsetW, cmmOffsetB, cmmLoadIndexW )
24 import CLabel ( mkMAP_FROZEN_infoLabel, mkMAP_DIRTY_infoLabel,
25 mkDirty_MUT_VAR_Label, mkRtsCodeLabel )
29 import PrimOp ( PrimOp(..) )
30 import SMRep ( tablesNextToCode )
31 import Constants ( wORD_SIZE, wORD_SIZE_IN_BITS )
32 import StaticFlags ( opt_Parallel )
35 -- ---------------------------------------------------------------------------
36 -- Code generation for PrimOps
38 cgPrimOp :: [CmmReg] -- where to put the results
40 -> [StgArg] -- arguments
41 -> StgLiveVars -- live vars, in case we need to save them
44 cgPrimOp results op args live
45 = do arg_exprs <- getArgAmodes args
46 let non_void_args = [ e | (r,e) <- arg_exprs, nonVoidArg r ]
47 emitPrimOp results op non_void_args live
50 emitPrimOp :: [CmmReg] -- where to put the results
52 -> [CmmExpr] -- arguments
53 -> StgLiveVars -- live vars, in case we need to save them
56 -- First we handle various awkward cases specially. The remaining
57 -- easy cases are then handled by translateOp, defined below.
59 emitPrimOp [res_r,res_c] IntAddCOp [aa,bb] live
61 With some bit-twiddling, we can define int{Add,Sub}Czh portably in
62 C, and without needing any comparisons. This may not be the
63 fastest way to do it - if you have better code, please send it! --SDM
65 Return : r = a + b, c = 0 if no overflow, 1 on overflow.
67 We currently don't make use of the r value if c is != 0 (i.e.
68 overflow), we just convert to big integers and try again. This
69 could be improved by making r and c the correct values for
70 plugging into a new J#.
72 { r = ((I_)(a)) + ((I_)(b)); \
73 c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
74 >> (BITS_IN (I_) - 1); \
76 Wading through the mass of bracketry, it seems to reduce to:
77 c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
81 CmmAssign res_r (CmmMachOp mo_wordAdd [aa,bb]),
83 CmmMachOp mo_wordUShr [
84 CmmMachOp mo_wordAnd [
85 CmmMachOp mo_wordNot [CmmMachOp mo_wordXor [aa,bb]],
86 CmmMachOp mo_wordXor [aa, CmmReg res_r]
88 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
93 emitPrimOp [res_r,res_c] IntSubCOp [aa,bb] live
95 #define subIntCzh(r,c,a,b) \
96 { r = ((I_)(a)) - ((I_)(b)); \
97 c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
98 >> (BITS_IN (I_) - 1); \
101 c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
104 CmmAssign res_r (CmmMachOp mo_wordSub [aa,bb]),
106 CmmMachOp mo_wordUShr [
107 CmmMachOp mo_wordAnd [
108 CmmMachOp mo_wordXor [aa,bb],
109 CmmMachOp mo_wordXor [aa, CmmReg res_r]
111 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
116 emitPrimOp [res] ParOp [arg] live
118 -- for now, just implement this in a C function
119 -- later, we might want to inline it.
120 vols <- getVolatileRegs live
121 emitForeignCall' PlayRisky
123 (CmmForeignCall newspark CCallConv)
124 [(CmmReg (CmmGlobal BaseReg), PtrHint), (arg,PtrHint)]
127 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
129 emitPrimOp [res] ReadMutVarOp [mutv] live
130 = stmtC (CmmAssign res (cmmLoadIndexW mutv fixedHdrSize))
132 emitPrimOp [] WriteMutVarOp [mutv,var] live
134 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
135 vols <- getVolatileRegs live
136 emitForeignCall' PlayRisky
138 (CmmForeignCall (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
140 [(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
143 -- #define sizzeofByteArrayzh(r,a) \
144 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
145 emitPrimOp [res] SizeofByteArrayOp [arg] live
147 CmmAssign res (CmmMachOp mo_wordMul [
148 cmmLoadIndexW arg fixedHdrSize,
149 CmmLit (mkIntCLit wORD_SIZE)
152 -- #define sizzeofMutableByteArrayzh(r,a) \
153 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
154 emitPrimOp [res] SizeofMutableByteArrayOp [arg] live
155 = emitPrimOp [res] SizeofByteArrayOp [arg] live
158 -- #define touchzh(o) /* nothing */
159 emitPrimOp [] TouchOp [arg] live
162 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
163 emitPrimOp [res] ByteArrayContents_Char [arg] live
164 = stmtC (CmmAssign res (cmmOffsetB arg arrWordsHdrSize))
166 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
167 emitPrimOp [res] StableNameToIntOp [arg] live
168 = stmtC (CmmAssign res (cmmLoadIndexW arg fixedHdrSize))
170 -- #define eqStableNamezh(r,sn1,sn2) \
171 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
172 emitPrimOp [res] EqStableNameOp [arg1,arg2] live
173 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [
174 cmmLoadIndexW arg1 fixedHdrSize,
175 cmmLoadIndexW arg2 fixedHdrSize
179 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
180 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [arg1,arg2]))
182 -- #define addrToHValuezh(r,a) r=(P_)a
183 emitPrimOp [res] AddrToHValueOp [arg] live
184 = stmtC (CmmAssign res arg)
186 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
187 emitPrimOp [res] DataToTagOp [arg] live
188 = stmtC (CmmAssign res (getConstrTag arg))
190 {- Freezing arrays-of-ptrs requires changing an info table, for the
191 benefit of the generational collector. It needs to scavenge mutable
192 objects, even if they are in old space. When they become immutable,
193 they can be removed from this scavenge list. -}
195 -- #define unsafeFreezzeArrayzh(r,a)
197 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN0_info);
200 emitPrimOp [res] UnsafeFreezeArrayOp [arg] live
201 = stmtsC [ setInfo arg (CmmLit (CmmLabel mkMAP_FROZEN_infoLabel)),
204 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
205 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
206 = stmtC (CmmAssign res arg)
208 -- Reading/writing pointer arrays
210 emitPrimOp [r] ReadArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
211 emitPrimOp [r] IndexArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
212 emitPrimOp [] WriteArrayOp [obj,ix,v] live = doWritePtrArrayOp obj ix v
216 emitPrimOp res IndexOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
217 emitPrimOp res IndexOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
218 emitPrimOp res IndexOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
219 emitPrimOp res IndexOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
220 emitPrimOp res IndexOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
221 emitPrimOp res IndexOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
222 emitPrimOp res IndexOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
223 emitPrimOp res IndexOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
224 emitPrimOp res IndexOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
225 emitPrimOp res IndexOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
226 emitPrimOp res IndexOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
227 emitPrimOp res IndexOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
228 emitPrimOp res IndexOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
229 emitPrimOp res IndexOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
230 emitPrimOp res IndexOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
231 emitPrimOp res IndexOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
233 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
235 emitPrimOp res ReadOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
236 emitPrimOp res ReadOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
237 emitPrimOp res ReadOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
238 emitPrimOp res ReadOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
239 emitPrimOp res ReadOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
240 emitPrimOp res ReadOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
241 emitPrimOp res ReadOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
242 emitPrimOp res ReadOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
243 emitPrimOp res ReadOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
244 emitPrimOp res ReadOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
245 emitPrimOp res ReadOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
246 emitPrimOp res ReadOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
247 emitPrimOp res ReadOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
248 emitPrimOp res ReadOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
249 emitPrimOp res ReadOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
250 emitPrimOp res ReadOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
254 emitPrimOp res IndexByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
255 emitPrimOp res IndexByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
256 emitPrimOp res IndexByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
257 emitPrimOp res IndexByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
258 emitPrimOp res IndexByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
259 emitPrimOp res IndexByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
260 emitPrimOp res IndexByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
261 emitPrimOp res IndexByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
262 emitPrimOp res IndexByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
263 emitPrimOp res IndexByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
264 emitPrimOp res IndexByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
265 emitPrimOp res IndexByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
266 emitPrimOp res IndexByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
267 emitPrimOp res IndexByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
268 emitPrimOp res IndexByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
269 emitPrimOp res IndexByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
271 -- ReadXXXArray, identical to IndexXXXArray.
273 emitPrimOp res ReadByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
274 emitPrimOp res ReadByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
275 emitPrimOp res ReadByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
276 emitPrimOp res ReadByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
277 emitPrimOp res ReadByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
278 emitPrimOp res ReadByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
279 emitPrimOp res ReadByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
280 emitPrimOp res ReadByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
281 emitPrimOp res ReadByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
282 emitPrimOp res ReadByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
283 emitPrimOp res ReadByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
284 emitPrimOp res ReadByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
285 emitPrimOp res ReadByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
286 emitPrimOp res ReadByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
287 emitPrimOp res ReadByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
288 emitPrimOp res ReadByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
292 emitPrimOp res WriteOffAddrOp_Char args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
293 emitPrimOp res WriteOffAddrOp_WideChar args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
294 emitPrimOp res WriteOffAddrOp_Int args live = doWriteOffAddrOp Nothing wordRep res args
295 emitPrimOp res WriteOffAddrOp_Word args live = doWriteOffAddrOp Nothing wordRep res args
296 emitPrimOp res WriteOffAddrOp_Addr args live = doWriteOffAddrOp Nothing wordRep res args
297 emitPrimOp res WriteOffAddrOp_Float args live = doWriteOffAddrOp Nothing F32 res args
298 emitPrimOp res WriteOffAddrOp_Double args live = doWriteOffAddrOp Nothing F64 res args
299 emitPrimOp res WriteOffAddrOp_StablePtr args live = doWriteOffAddrOp Nothing wordRep res args
300 emitPrimOp res WriteOffAddrOp_Int8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
301 emitPrimOp res WriteOffAddrOp_Int16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
302 emitPrimOp res WriteOffAddrOp_Int32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
303 emitPrimOp res WriteOffAddrOp_Int64 args live = doWriteOffAddrOp Nothing I64 res args
304 emitPrimOp res WriteOffAddrOp_Word8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
305 emitPrimOp res WriteOffAddrOp_Word16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
306 emitPrimOp res WriteOffAddrOp_Word32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
307 emitPrimOp res WriteOffAddrOp_Word64 args live = doWriteOffAddrOp Nothing I64 res args
311 emitPrimOp res WriteByteArrayOp_Char args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
312 emitPrimOp res WriteByteArrayOp_WideChar args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
313 emitPrimOp res WriteByteArrayOp_Int args live = doWriteByteArrayOp Nothing wordRep res args
314 emitPrimOp res WriteByteArrayOp_Word args live = doWriteByteArrayOp Nothing wordRep res args
315 emitPrimOp res WriteByteArrayOp_Addr args live = doWriteByteArrayOp Nothing wordRep res args
316 emitPrimOp res WriteByteArrayOp_Float args live = doWriteByteArrayOp Nothing F32 res args
317 emitPrimOp res WriteByteArrayOp_Double args live = doWriteByteArrayOp Nothing F64 res args
318 emitPrimOp res WriteByteArrayOp_StablePtr args live = doWriteByteArrayOp Nothing wordRep res args
319 emitPrimOp res WriteByteArrayOp_Int8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
320 emitPrimOp res WriteByteArrayOp_Int16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
321 emitPrimOp res WriteByteArrayOp_Int32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
322 emitPrimOp res WriteByteArrayOp_Int64 args live = doWriteByteArrayOp Nothing I64 res args
323 emitPrimOp res WriteByteArrayOp_Word8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
324 emitPrimOp res WriteByteArrayOp_Word16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
325 emitPrimOp res WriteByteArrayOp_Word32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
326 emitPrimOp res WriteByteArrayOp_Word64 args live = doWriteByteArrayOp Nothing I64 res args
329 -- The rest just translate straightforwardly
330 emitPrimOp [res] op [arg] live
332 = stmtC (CmmAssign res arg)
334 | Just (mop,rep) <- narrowOp op
335 = stmtC (CmmAssign res (CmmMachOp (mop rep wordRep) [
336 CmmMachOp (mop wordRep rep) [arg]]))
338 emitPrimOp [res] op args live
339 | Just prim <- callishOp op
340 = do vols <- getVolatileRegs live
341 emitForeignCall' PlayRisky
344 [(a,NoHint) | a<-args] -- ToDo: hints?
347 | Just mop <- translateOp op
348 = let stmt = CmmAssign res (CmmMachOp mop args) in
352 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
355 -- These PrimOps are NOPs in Cmm
357 nopOp Int2WordOp = True
358 nopOp Word2IntOp = True
359 nopOp Int2AddrOp = True
360 nopOp Addr2IntOp = True
361 nopOp ChrOp = True -- Int# and Char# are rep'd the same
365 -- These PrimOps turn into double casts
367 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
368 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
369 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
370 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
371 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
372 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
375 -- Native word signless ops
377 translateOp IntAddOp = Just mo_wordAdd
378 translateOp IntSubOp = Just mo_wordSub
379 translateOp WordAddOp = Just mo_wordAdd
380 translateOp WordSubOp = Just mo_wordSub
381 translateOp AddrAddOp = Just mo_wordAdd
382 translateOp AddrSubOp = Just mo_wordSub
384 translateOp IntEqOp = Just mo_wordEq
385 translateOp IntNeOp = Just mo_wordNe
386 translateOp WordEqOp = Just mo_wordEq
387 translateOp WordNeOp = Just mo_wordNe
388 translateOp AddrEqOp = Just mo_wordEq
389 translateOp AddrNeOp = Just mo_wordNe
391 translateOp AndOp = Just mo_wordAnd
392 translateOp OrOp = Just mo_wordOr
393 translateOp XorOp = Just mo_wordXor
394 translateOp NotOp = Just mo_wordNot
395 translateOp SllOp = Just mo_wordShl
396 translateOp SrlOp = Just mo_wordUShr
398 translateOp AddrRemOp = Just mo_wordURem
400 -- Native word signed ops
402 translateOp IntMulOp = Just mo_wordMul
403 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
404 translateOp IntQuotOp = Just mo_wordSQuot
405 translateOp IntRemOp = Just mo_wordSRem
406 translateOp IntNegOp = Just mo_wordSNeg
409 translateOp IntGeOp = Just mo_wordSGe
410 translateOp IntLeOp = Just mo_wordSLe
411 translateOp IntGtOp = Just mo_wordSGt
412 translateOp IntLtOp = Just mo_wordSLt
414 translateOp ISllOp = Just mo_wordShl
415 translateOp ISraOp = Just mo_wordSShr
416 translateOp ISrlOp = Just mo_wordUShr
418 -- Native word unsigned ops
420 translateOp WordGeOp = Just mo_wordUGe
421 translateOp WordLeOp = Just mo_wordULe
422 translateOp WordGtOp = Just mo_wordUGt
423 translateOp WordLtOp = Just mo_wordULt
425 translateOp WordMulOp = Just mo_wordMul
426 translateOp WordQuotOp = Just mo_wordUQuot
427 translateOp WordRemOp = Just mo_wordURem
429 translateOp AddrGeOp = Just mo_wordUGe
430 translateOp AddrLeOp = Just mo_wordULe
431 translateOp AddrGtOp = Just mo_wordUGt
432 translateOp AddrLtOp = Just mo_wordULt
436 translateOp CharEqOp = Just (MO_Eq wordRep)
437 translateOp CharNeOp = Just (MO_Ne wordRep)
438 translateOp CharGeOp = Just (MO_U_Ge wordRep)
439 translateOp CharLeOp = Just (MO_U_Le wordRep)
440 translateOp CharGtOp = Just (MO_U_Gt wordRep)
441 translateOp CharLtOp = Just (MO_U_Lt wordRep)
445 translateOp DoubleEqOp = Just (MO_Eq F64)
446 translateOp DoubleNeOp = Just (MO_Ne F64)
447 translateOp DoubleGeOp = Just (MO_S_Ge F64)
448 translateOp DoubleLeOp = Just (MO_S_Le F64)
449 translateOp DoubleGtOp = Just (MO_S_Gt F64)
450 translateOp DoubleLtOp = Just (MO_S_Lt F64)
452 translateOp DoubleAddOp = Just (MO_Add F64)
453 translateOp DoubleSubOp = Just (MO_Sub F64)
454 translateOp DoubleMulOp = Just (MO_Mul F64)
455 translateOp DoubleDivOp = Just (MO_S_Quot F64)
456 translateOp DoubleNegOp = Just (MO_S_Neg F64)
460 translateOp FloatEqOp = Just (MO_Eq F32)
461 translateOp FloatNeOp = Just (MO_Ne F32)
462 translateOp FloatGeOp = Just (MO_S_Ge F32)
463 translateOp FloatLeOp = Just (MO_S_Le F32)
464 translateOp FloatGtOp = Just (MO_S_Gt F32)
465 translateOp FloatLtOp = Just (MO_S_Lt F32)
467 translateOp FloatAddOp = Just (MO_Add F32)
468 translateOp FloatSubOp = Just (MO_Sub F32)
469 translateOp FloatMulOp = Just (MO_Mul F32)
470 translateOp FloatDivOp = Just (MO_S_Quot F32)
471 translateOp FloatNegOp = Just (MO_S_Neg F32)
475 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
476 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
478 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
479 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
481 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
482 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
484 -- Word comparisons masquerading as more exotic things.
486 translateOp SameMutVarOp = Just mo_wordEq
487 translateOp SameMVarOp = Just mo_wordEq
488 translateOp SameMutableArrayOp = Just mo_wordEq
489 translateOp SameMutableByteArrayOp = Just mo_wordEq
490 translateOp SameTVarOp = Just mo_wordEq
491 translateOp EqStablePtrOp = Just mo_wordEq
493 translateOp _ = Nothing
495 -- These primops are implemented by CallishMachOps, because they sometimes
496 -- turn into foreign calls depending on the backend.
498 callishOp DoublePowerOp = Just MO_F64_Pwr
499 callishOp DoubleSinOp = Just MO_F64_Sin
500 callishOp DoubleCosOp = Just MO_F64_Cos
501 callishOp DoubleTanOp = Just MO_F64_Tan
502 callishOp DoubleSinhOp = Just MO_F64_Sinh
503 callishOp DoubleCoshOp = Just MO_F64_Cosh
504 callishOp DoubleTanhOp = Just MO_F64_Tanh
505 callishOp DoubleAsinOp = Just MO_F64_Asin
506 callishOp DoubleAcosOp = Just MO_F64_Acos
507 callishOp DoubleAtanOp = Just MO_F64_Atan
508 callishOp DoubleLogOp = Just MO_F64_Log
509 callishOp DoubleExpOp = Just MO_F64_Exp
510 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
512 callishOp FloatPowerOp = Just MO_F32_Pwr
513 callishOp FloatSinOp = Just MO_F32_Sin
514 callishOp FloatCosOp = Just MO_F32_Cos
515 callishOp FloatTanOp = Just MO_F32_Tan
516 callishOp FloatSinhOp = Just MO_F32_Sinh
517 callishOp FloatCoshOp = Just MO_F32_Cosh
518 callishOp FloatTanhOp = Just MO_F32_Tanh
519 callishOp FloatAsinOp = Just MO_F32_Asin
520 callishOp FloatAcosOp = Just MO_F32_Acos
521 callishOp FloatAtanOp = Just MO_F32_Atan
522 callishOp FloatLogOp = Just MO_F32_Log
523 callishOp FloatExpOp = Just MO_F32_Exp
524 callishOp FloatSqrtOp = Just MO_F32_Sqrt
526 callishOp _ = Nothing
528 ------------------------------------------------------------------------------
529 -- Helpers for translating various minor variants of array indexing.
531 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
532 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
533 doIndexOffAddrOp _ _ _ _
534 = panic "CgPrimOp: doIndexOffAddrOp"
536 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
537 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
538 doIndexByteArrayOp _ _ _ _
539 = panic "CgPrimOp: doIndexByteArrayOp"
541 doReadPtrArrayOp res addr idx
542 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
545 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
546 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
547 doWriteOffAddrOp _ _ _ _
548 = panic "CgPrimOp: doWriteOffAddrOp"
550 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
551 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
552 doWriteByteArrayOp _ _ _ _
553 = panic "CgPrimOp: doWriteByteArrayOp"
555 doWritePtrArrayOp addr idx val
556 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
557 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
560 mkBasicIndexedRead off Nothing read_rep res base idx
561 = stmtC (CmmAssign res (cmmLoadIndexOffExpr off read_rep base idx))
562 mkBasicIndexedRead off (Just cast) read_rep res base idx
563 = stmtC (CmmAssign res (CmmMachOp cast [
564 cmmLoadIndexOffExpr off read_rep base idx]))
566 mkBasicIndexedWrite off Nothing write_rep base idx val
567 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
568 mkBasicIndexedWrite off (Just cast) write_rep base idx val
569 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
571 -- ----------------------------------------------------------------------------
574 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
575 cmmIndexOffExpr off rep base idx
576 = cmmIndexExpr rep (cmmOffsetB base off) idx
578 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
579 cmmLoadIndexOffExpr off rep base idx
580 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
582 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
583 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr