1 -----------------------------------------------------------------------------
3 -- Code generation for PrimOps.
5 -- (c) The University of Glasgow 2004-2006
7 -----------------------------------------------------------------------------
13 #include "HsVersions.h"
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 emitForeignCall' PlayRisky
122 (CmmForeignCall newspark CCallConv)
123 [(CmmReg (CmmGlobal BaseReg), PtrHint), (arg,PtrHint)]
126 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
128 emitPrimOp [res] ReadMutVarOp [mutv] live
129 = stmtC (CmmAssign res (cmmLoadIndexW mutv fixedHdrSize))
131 emitPrimOp [] WriteMutVarOp [mutv,var] live
133 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
134 vols <- getVolatileRegs live
135 emitForeignCall' PlayRisky
137 (CmmForeignCall (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
139 [(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
142 -- #define sizzeofByteArrayzh(r,a) \
143 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
144 emitPrimOp [res] SizeofByteArrayOp [arg] live
146 CmmAssign res (CmmMachOp mo_wordMul [
147 cmmLoadIndexW arg fixedHdrSize,
148 CmmLit (mkIntCLit wORD_SIZE)
151 -- #define sizzeofMutableByteArrayzh(r,a) \
152 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
153 emitPrimOp [res] SizeofMutableByteArrayOp [arg] live
154 = emitPrimOp [res] SizeofByteArrayOp [arg] live
157 -- #define touchzh(o) /* nothing */
158 emitPrimOp [] TouchOp [arg] live
161 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
162 emitPrimOp [res] ByteArrayContents_Char [arg] live
163 = stmtC (CmmAssign res (cmmOffsetB arg arrWordsHdrSize))
165 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
166 emitPrimOp [res] StableNameToIntOp [arg] live
167 = stmtC (CmmAssign res (cmmLoadIndexW arg fixedHdrSize))
169 -- #define eqStableNamezh(r,sn1,sn2) \
170 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
171 emitPrimOp [res] EqStableNameOp [arg1,arg2] live
172 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [
173 cmmLoadIndexW arg1 fixedHdrSize,
174 cmmLoadIndexW arg2 fixedHdrSize
178 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
179 = stmtC (CmmAssign res (CmmMachOp mo_wordEq [arg1,arg2]))
181 -- #define addrToHValuezh(r,a) r=(P_)a
182 emitPrimOp [res] AddrToHValueOp [arg] live
183 = stmtC (CmmAssign res arg)
185 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
186 emitPrimOp [res] DataToTagOp [arg] live
187 = stmtC (CmmAssign res (getConstrTag arg))
189 {- Freezing arrays-of-ptrs requires changing an info table, for the
190 benefit of the generational collector. It needs to scavenge mutable
191 objects, even if they are in old space. When they become immutable,
192 they can be removed from this scavenge list. -}
194 -- #define unsafeFreezzeArrayzh(r,a)
196 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN0_info);
199 emitPrimOp [res] UnsafeFreezeArrayOp [arg] live
200 = stmtsC [ setInfo arg (CmmLit (CmmLabel mkMAP_FROZEN_infoLabel)),
203 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
204 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
205 = stmtC (CmmAssign res arg)
207 -- Reading/writing pointer arrays
209 emitPrimOp [r] ReadArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
210 emitPrimOp [r] IndexArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
211 emitPrimOp [] WriteArrayOp [obj,ix,v] live = doWritePtrArrayOp obj ix v
215 emitPrimOp res IndexOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
216 emitPrimOp res IndexOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
217 emitPrimOp res IndexOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
218 emitPrimOp res IndexOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
219 emitPrimOp res IndexOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
220 emitPrimOp res IndexOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
221 emitPrimOp res IndexOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
222 emitPrimOp res IndexOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
223 emitPrimOp res IndexOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
224 emitPrimOp res IndexOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
225 emitPrimOp res IndexOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
226 emitPrimOp res IndexOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
227 emitPrimOp res IndexOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
228 emitPrimOp res IndexOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
229 emitPrimOp res IndexOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
230 emitPrimOp res IndexOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
232 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
234 emitPrimOp res ReadOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
235 emitPrimOp res ReadOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
236 emitPrimOp res ReadOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
237 emitPrimOp res ReadOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
238 emitPrimOp res ReadOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
239 emitPrimOp res ReadOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
240 emitPrimOp res ReadOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
241 emitPrimOp res ReadOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
242 emitPrimOp res ReadOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
243 emitPrimOp res ReadOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
244 emitPrimOp res ReadOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
245 emitPrimOp res ReadOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
246 emitPrimOp res ReadOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
247 emitPrimOp res ReadOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
248 emitPrimOp res ReadOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
249 emitPrimOp res ReadOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
253 emitPrimOp res IndexByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
254 emitPrimOp res IndexByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
255 emitPrimOp res IndexByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
256 emitPrimOp res IndexByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
257 emitPrimOp res IndexByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
258 emitPrimOp res IndexByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
259 emitPrimOp res IndexByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
260 emitPrimOp res IndexByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
261 emitPrimOp res IndexByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
262 emitPrimOp res IndexByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
263 emitPrimOp res IndexByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
264 emitPrimOp res IndexByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
265 emitPrimOp res IndexByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
266 emitPrimOp res IndexByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
267 emitPrimOp res IndexByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
268 emitPrimOp res IndexByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
270 -- ReadXXXArray, identical to IndexXXXArray.
272 emitPrimOp res ReadByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
273 emitPrimOp res ReadByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
274 emitPrimOp res ReadByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
275 emitPrimOp res ReadByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
276 emitPrimOp res ReadByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
277 emitPrimOp res ReadByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
278 emitPrimOp res ReadByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
279 emitPrimOp res ReadByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
280 emitPrimOp res ReadByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
281 emitPrimOp res ReadByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
282 emitPrimOp res ReadByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
283 emitPrimOp res ReadByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
284 emitPrimOp res ReadByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
285 emitPrimOp res ReadByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
286 emitPrimOp res ReadByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
287 emitPrimOp res ReadByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
291 emitPrimOp res WriteOffAddrOp_Char args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
292 emitPrimOp res WriteOffAddrOp_WideChar args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
293 emitPrimOp res WriteOffAddrOp_Int args live = doWriteOffAddrOp Nothing wordRep res args
294 emitPrimOp res WriteOffAddrOp_Word args live = doWriteOffAddrOp Nothing wordRep res args
295 emitPrimOp res WriteOffAddrOp_Addr args live = doWriteOffAddrOp Nothing wordRep res args
296 emitPrimOp res WriteOffAddrOp_Float args live = doWriteOffAddrOp Nothing F32 res args
297 emitPrimOp res WriteOffAddrOp_Double args live = doWriteOffAddrOp Nothing F64 res args
298 emitPrimOp res WriteOffAddrOp_StablePtr args live = doWriteOffAddrOp Nothing wordRep res args
299 emitPrimOp res WriteOffAddrOp_Int8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
300 emitPrimOp res WriteOffAddrOp_Int16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
301 emitPrimOp res WriteOffAddrOp_Int32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
302 emitPrimOp res WriteOffAddrOp_Int64 args live = doWriteOffAddrOp Nothing I64 res args
303 emitPrimOp res WriteOffAddrOp_Word8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
304 emitPrimOp res WriteOffAddrOp_Word16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
305 emitPrimOp res WriteOffAddrOp_Word32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
306 emitPrimOp res WriteOffAddrOp_Word64 args live = doWriteOffAddrOp Nothing I64 res args
310 emitPrimOp res WriteByteArrayOp_Char args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
311 emitPrimOp res WriteByteArrayOp_WideChar args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
312 emitPrimOp res WriteByteArrayOp_Int args live = doWriteByteArrayOp Nothing wordRep res args
313 emitPrimOp res WriteByteArrayOp_Word args live = doWriteByteArrayOp Nothing wordRep res args
314 emitPrimOp res WriteByteArrayOp_Addr args live = doWriteByteArrayOp Nothing wordRep res args
315 emitPrimOp res WriteByteArrayOp_Float args live = doWriteByteArrayOp Nothing F32 res args
316 emitPrimOp res WriteByteArrayOp_Double args live = doWriteByteArrayOp Nothing F64 res args
317 emitPrimOp res WriteByteArrayOp_StablePtr args live = doWriteByteArrayOp Nothing wordRep res args
318 emitPrimOp res WriteByteArrayOp_Int8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
319 emitPrimOp res WriteByteArrayOp_Int16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
320 emitPrimOp res WriteByteArrayOp_Int32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
321 emitPrimOp res WriteByteArrayOp_Int64 args live = doWriteByteArrayOp Nothing I64 res args
322 emitPrimOp res WriteByteArrayOp_Word8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
323 emitPrimOp res WriteByteArrayOp_Word16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
324 emitPrimOp res WriteByteArrayOp_Word32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
325 emitPrimOp res WriteByteArrayOp_Word64 args live = doWriteByteArrayOp Nothing I64 res args
328 -- The rest just translate straightforwardly
329 emitPrimOp [res] op [arg] live
331 = stmtC (CmmAssign res arg)
333 | Just (mop,rep) <- narrowOp op
334 = stmtC (CmmAssign res (CmmMachOp (mop rep wordRep) [
335 CmmMachOp (mop wordRep rep) [arg]]))
337 emitPrimOp [res] op args live
338 | Just prim <- callishOp op
339 = do vols <- getVolatileRegs live
340 emitForeignCall' PlayRisky
343 [(a,NoHint) | a<-args] -- ToDo: hints?
346 | Just mop <- translateOp op
347 = let stmt = CmmAssign res (CmmMachOp mop args) in
351 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
354 -- These PrimOps are NOPs in Cmm
356 nopOp Int2WordOp = True
357 nopOp Word2IntOp = True
358 nopOp Int2AddrOp = True
359 nopOp Addr2IntOp = True
360 nopOp ChrOp = True -- Int# and Char# are rep'd the same
364 -- These PrimOps turn into double casts
366 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
367 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
368 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
369 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
370 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
371 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
374 -- Native word signless ops
376 translateOp IntAddOp = Just mo_wordAdd
377 translateOp IntSubOp = Just mo_wordSub
378 translateOp WordAddOp = Just mo_wordAdd
379 translateOp WordSubOp = Just mo_wordSub
380 translateOp AddrAddOp = Just mo_wordAdd
381 translateOp AddrSubOp = Just mo_wordSub
383 translateOp IntEqOp = Just mo_wordEq
384 translateOp IntNeOp = Just mo_wordNe
385 translateOp WordEqOp = Just mo_wordEq
386 translateOp WordNeOp = Just mo_wordNe
387 translateOp AddrEqOp = Just mo_wordEq
388 translateOp AddrNeOp = Just mo_wordNe
390 translateOp AndOp = Just mo_wordAnd
391 translateOp OrOp = Just mo_wordOr
392 translateOp XorOp = Just mo_wordXor
393 translateOp NotOp = Just mo_wordNot
394 translateOp SllOp = Just mo_wordShl
395 translateOp SrlOp = Just mo_wordUShr
397 translateOp AddrRemOp = Just mo_wordURem
399 -- Native word signed ops
401 translateOp IntMulOp = Just mo_wordMul
402 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
403 translateOp IntQuotOp = Just mo_wordSQuot
404 translateOp IntRemOp = Just mo_wordSRem
405 translateOp IntNegOp = Just mo_wordSNeg
408 translateOp IntGeOp = Just mo_wordSGe
409 translateOp IntLeOp = Just mo_wordSLe
410 translateOp IntGtOp = Just mo_wordSGt
411 translateOp IntLtOp = Just mo_wordSLt
413 translateOp ISllOp = Just mo_wordShl
414 translateOp ISraOp = Just mo_wordSShr
415 translateOp ISrlOp = Just mo_wordUShr
417 -- Native word unsigned ops
419 translateOp WordGeOp = Just mo_wordUGe
420 translateOp WordLeOp = Just mo_wordULe
421 translateOp WordGtOp = Just mo_wordUGt
422 translateOp WordLtOp = Just mo_wordULt
424 translateOp WordMulOp = Just mo_wordMul
425 translateOp WordQuotOp = Just mo_wordUQuot
426 translateOp WordRemOp = Just mo_wordURem
428 translateOp AddrGeOp = Just mo_wordUGe
429 translateOp AddrLeOp = Just mo_wordULe
430 translateOp AddrGtOp = Just mo_wordUGt
431 translateOp AddrLtOp = Just mo_wordULt
435 translateOp CharEqOp = Just (MO_Eq wordRep)
436 translateOp CharNeOp = Just (MO_Ne wordRep)
437 translateOp CharGeOp = Just (MO_U_Ge wordRep)
438 translateOp CharLeOp = Just (MO_U_Le wordRep)
439 translateOp CharGtOp = Just (MO_U_Gt wordRep)
440 translateOp CharLtOp = Just (MO_U_Lt wordRep)
444 translateOp DoubleEqOp = Just (MO_Eq F64)
445 translateOp DoubleNeOp = Just (MO_Ne F64)
446 translateOp DoubleGeOp = Just (MO_S_Ge F64)
447 translateOp DoubleLeOp = Just (MO_S_Le F64)
448 translateOp DoubleGtOp = Just (MO_S_Gt F64)
449 translateOp DoubleLtOp = Just (MO_S_Lt F64)
451 translateOp DoubleAddOp = Just (MO_Add F64)
452 translateOp DoubleSubOp = Just (MO_Sub F64)
453 translateOp DoubleMulOp = Just (MO_Mul F64)
454 translateOp DoubleDivOp = Just (MO_S_Quot F64)
455 translateOp DoubleNegOp = Just (MO_S_Neg F64)
459 translateOp FloatEqOp = Just (MO_Eq F32)
460 translateOp FloatNeOp = Just (MO_Ne F32)
461 translateOp FloatGeOp = Just (MO_S_Ge F32)
462 translateOp FloatLeOp = Just (MO_S_Le F32)
463 translateOp FloatGtOp = Just (MO_S_Gt F32)
464 translateOp FloatLtOp = Just (MO_S_Lt F32)
466 translateOp FloatAddOp = Just (MO_Add F32)
467 translateOp FloatSubOp = Just (MO_Sub F32)
468 translateOp FloatMulOp = Just (MO_Mul F32)
469 translateOp FloatDivOp = Just (MO_S_Quot F32)
470 translateOp FloatNegOp = Just (MO_S_Neg F32)
474 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
475 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
477 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
478 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
480 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
481 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
483 -- Word comparisons masquerading as more exotic things.
485 translateOp SameMutVarOp = Just mo_wordEq
486 translateOp SameMVarOp = Just mo_wordEq
487 translateOp SameMutableArrayOp = Just mo_wordEq
488 translateOp SameMutableByteArrayOp = Just mo_wordEq
489 translateOp SameTVarOp = Just mo_wordEq
490 translateOp EqStablePtrOp = Just mo_wordEq
492 translateOp _ = Nothing
494 -- These primops are implemented by CallishMachOps, because they sometimes
495 -- turn into foreign calls depending on the backend.
497 callishOp DoublePowerOp = Just MO_F64_Pwr
498 callishOp DoubleSinOp = Just MO_F64_Sin
499 callishOp DoubleCosOp = Just MO_F64_Cos
500 callishOp DoubleTanOp = Just MO_F64_Tan
501 callishOp DoubleSinhOp = Just MO_F64_Sinh
502 callishOp DoubleCoshOp = Just MO_F64_Cosh
503 callishOp DoubleTanhOp = Just MO_F64_Tanh
504 callishOp DoubleAsinOp = Just MO_F64_Asin
505 callishOp DoubleAcosOp = Just MO_F64_Acos
506 callishOp DoubleAtanOp = Just MO_F64_Atan
507 callishOp DoubleLogOp = Just MO_F64_Log
508 callishOp DoubleExpOp = Just MO_F64_Exp
509 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
511 callishOp FloatPowerOp = Just MO_F32_Pwr
512 callishOp FloatSinOp = Just MO_F32_Sin
513 callishOp FloatCosOp = Just MO_F32_Cos
514 callishOp FloatTanOp = Just MO_F32_Tan
515 callishOp FloatSinhOp = Just MO_F32_Sinh
516 callishOp FloatCoshOp = Just MO_F32_Cosh
517 callishOp FloatTanhOp = Just MO_F32_Tanh
518 callishOp FloatAsinOp = Just MO_F32_Asin
519 callishOp FloatAcosOp = Just MO_F32_Acos
520 callishOp FloatAtanOp = Just MO_F32_Atan
521 callishOp FloatLogOp = Just MO_F32_Log
522 callishOp FloatExpOp = Just MO_F32_Exp
523 callishOp FloatSqrtOp = Just MO_F32_Sqrt
525 callishOp _ = Nothing
527 ------------------------------------------------------------------------------
528 -- Helpers for translating various minor variants of array indexing.
530 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
531 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
532 doIndexOffAddrOp _ _ _ _
533 = panic "CgPrimOp: doIndexOffAddrOp"
535 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
536 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
537 doIndexByteArrayOp _ _ _ _
538 = panic "CgPrimOp: doIndexByteArrayOp"
540 doReadPtrArrayOp res addr idx
541 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
544 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
545 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
546 doWriteOffAddrOp _ _ _ _
547 = panic "CgPrimOp: doWriteOffAddrOp"
549 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
550 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
551 doWriteByteArrayOp _ _ _ _
552 = panic "CgPrimOp: doWriteByteArrayOp"
554 doWritePtrArrayOp addr idx val
555 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
556 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
559 mkBasicIndexedRead off Nothing read_rep res base idx
560 = stmtC (CmmAssign res (cmmLoadIndexOffExpr off read_rep base idx))
561 mkBasicIndexedRead off (Just cast) read_rep res base idx
562 = stmtC (CmmAssign res (CmmMachOp cast [
563 cmmLoadIndexOffExpr off read_rep base idx]))
565 mkBasicIndexedWrite off Nothing write_rep base idx val
566 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
567 mkBasicIndexedWrite off (Just cast) write_rep base idx val
568 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
570 -- ----------------------------------------------------------------------------
573 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
574 cmmIndexOffExpr off rep base idx
575 = cmmIndexExpr rep (cmmOffsetB base off) idx
577 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
578 cmmLoadIndexOffExpr off rep base idx
579 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
581 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
582 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr