1 -----------------------------------------------------------------------------
3 -- Code generation for PrimOps.
5 -- (c) The University of Glasgow 2004-2006
7 -----------------------------------------------------------------------------
13 #include "HsVersions.h"
35 -- ---------------------------------------------------------------------------
36 -- Code generation for PrimOps
38 cgPrimOp :: CmmFormals -- 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 :: CmmFormals -- 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 (CmmLocal res_r) (CmmMachOp mo_wordAdd [aa,bb]),
82 CmmAssign (CmmLocal res_c) $
83 CmmMachOp mo_wordUShr [
84 CmmMachOp mo_wordAnd [
85 CmmMachOp mo_wordNot [CmmMachOp mo_wordXor [aa,bb]],
86 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal 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 (CmmLocal res_r) (CmmMachOp mo_wordSub [aa,bb]),
105 CmmAssign (CmmLocal res_c) $
106 CmmMachOp mo_wordUShr [
107 CmmMachOp mo_wordAnd [
108 CmmMachOp mo_wordXor [aa,bb],
109 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal 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)]
126 NoC_SRT -- No SRT b/c we do PlayRisky
128 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
130 emitPrimOp [res] ReadMutVarOp [mutv] live
131 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexW mutv fixedHdrSize))
133 emitPrimOp [] WriteMutVarOp [mutv,var] live
135 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
136 vols <- getVolatileRegs live
137 emitForeignCall' PlayRisky
139 (CmmForeignCall (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
141 [(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
143 NoC_SRT -- No SRT b/c we do PlayRisky
145 -- #define sizzeofByteArrayzh(r,a) \
146 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
147 emitPrimOp [res] SizeofByteArrayOp [arg] live
149 CmmAssign (CmmLocal res) (CmmMachOp mo_wordMul [
150 cmmLoadIndexW arg fixedHdrSize,
151 CmmLit (mkIntCLit wORD_SIZE)
154 -- #define sizzeofMutableByteArrayzh(r,a) \
155 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
156 emitPrimOp [res] SizeofMutableByteArrayOp [arg] live
157 = emitPrimOp [res] SizeofByteArrayOp [arg] live
160 -- #define touchzh(o) /* nothing */
161 emitPrimOp [] TouchOp [arg] live
164 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
165 emitPrimOp [res] ByteArrayContents_Char [arg] live
166 = stmtC (CmmAssign (CmmLocal res) (cmmOffsetB arg arrWordsHdrSize))
168 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
169 emitPrimOp [res] StableNameToIntOp [arg] live
170 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexW arg fixedHdrSize))
172 -- #define eqStableNamezh(r,sn1,sn2) \
173 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
174 emitPrimOp [res] EqStableNameOp [arg1,arg2] live
175 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp mo_wordEq [
176 cmmLoadIndexW arg1 fixedHdrSize,
177 cmmLoadIndexW arg2 fixedHdrSize
181 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
182 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp mo_wordEq [arg1,arg2]))
184 -- #define addrToHValuezh(r,a) r=(P_)a
185 emitPrimOp [res] AddrToHValueOp [arg] live
186 = stmtC (CmmAssign (CmmLocal res) arg)
188 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
189 emitPrimOp [res] DataToTagOp [arg] live
190 = stmtC (CmmAssign (CmmLocal res) (getConstrTag arg))
192 {- Freezing arrays-of-ptrs requires changing an info table, for the
193 benefit of the generational collector. It needs to scavenge mutable
194 objects, even if they are in old space. When they become immutable,
195 they can be removed from this scavenge list. -}
197 -- #define unsafeFreezzeArrayzh(r,a)
199 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN0_info);
202 emitPrimOp [res] UnsafeFreezeArrayOp [arg] live
203 = stmtsC [ setInfo arg (CmmLit (CmmLabel mkMAP_FROZEN_infoLabel)),
204 CmmAssign (CmmLocal res) arg ]
206 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
207 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
208 = stmtC (CmmAssign (CmmLocal res) arg)
210 -- Reading/writing pointer arrays
212 emitPrimOp [r] ReadArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
213 emitPrimOp [r] IndexArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
214 emitPrimOp [] WriteArrayOp [obj,ix,v] live = doWritePtrArrayOp obj ix v
218 emitPrimOp res IndexOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
219 emitPrimOp res IndexOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
220 emitPrimOp res IndexOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
221 emitPrimOp res IndexOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
222 emitPrimOp res IndexOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
223 emitPrimOp res IndexOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
224 emitPrimOp res IndexOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
225 emitPrimOp res IndexOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
226 emitPrimOp res IndexOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
227 emitPrimOp res IndexOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
228 emitPrimOp res IndexOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
229 emitPrimOp res IndexOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
230 emitPrimOp res IndexOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
231 emitPrimOp res IndexOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
232 emitPrimOp res IndexOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
233 emitPrimOp res IndexOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
235 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
237 emitPrimOp res ReadOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
238 emitPrimOp res ReadOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
239 emitPrimOp res ReadOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
240 emitPrimOp res ReadOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
241 emitPrimOp res ReadOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
242 emitPrimOp res ReadOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
243 emitPrimOp res ReadOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
244 emitPrimOp res ReadOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
245 emitPrimOp res ReadOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
246 emitPrimOp res ReadOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
247 emitPrimOp res ReadOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
248 emitPrimOp res ReadOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
249 emitPrimOp res ReadOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
250 emitPrimOp res ReadOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
251 emitPrimOp res ReadOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
252 emitPrimOp res ReadOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
256 emitPrimOp res IndexByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
257 emitPrimOp res IndexByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
258 emitPrimOp res IndexByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
259 emitPrimOp res IndexByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
260 emitPrimOp res IndexByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
261 emitPrimOp res IndexByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
262 emitPrimOp res IndexByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
263 emitPrimOp res IndexByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
264 emitPrimOp res IndexByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
265 emitPrimOp res IndexByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
266 emitPrimOp res IndexByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
267 emitPrimOp res IndexByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
268 emitPrimOp res IndexByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
269 emitPrimOp res IndexByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
270 emitPrimOp res IndexByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
271 emitPrimOp res IndexByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
273 -- ReadXXXArray, identical to IndexXXXArray.
275 emitPrimOp res ReadByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
276 emitPrimOp res ReadByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
277 emitPrimOp res ReadByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
278 emitPrimOp res ReadByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
279 emitPrimOp res ReadByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
280 emitPrimOp res ReadByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
281 emitPrimOp res ReadByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
282 emitPrimOp res ReadByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
283 emitPrimOp res ReadByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
284 emitPrimOp res ReadByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
285 emitPrimOp res ReadByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
286 emitPrimOp res ReadByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
287 emitPrimOp res ReadByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
288 emitPrimOp res ReadByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
289 emitPrimOp res ReadByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
290 emitPrimOp res ReadByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
294 emitPrimOp res WriteOffAddrOp_Char args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
295 emitPrimOp res WriteOffAddrOp_WideChar args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
296 emitPrimOp res WriteOffAddrOp_Int args live = doWriteOffAddrOp Nothing wordRep res args
297 emitPrimOp res WriteOffAddrOp_Word args live = doWriteOffAddrOp Nothing wordRep res args
298 emitPrimOp res WriteOffAddrOp_Addr args live = doWriteOffAddrOp Nothing wordRep res args
299 emitPrimOp res WriteOffAddrOp_Float args live = doWriteOffAddrOp Nothing F32 res args
300 emitPrimOp res WriteOffAddrOp_Double args live = doWriteOffAddrOp Nothing F64 res args
301 emitPrimOp res WriteOffAddrOp_StablePtr args live = doWriteOffAddrOp Nothing wordRep res args
302 emitPrimOp res WriteOffAddrOp_Int8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
303 emitPrimOp res WriteOffAddrOp_Int16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
304 emitPrimOp res WriteOffAddrOp_Int32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
305 emitPrimOp res WriteOffAddrOp_Int64 args live = doWriteOffAddrOp Nothing I64 res args
306 emitPrimOp res WriteOffAddrOp_Word8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
307 emitPrimOp res WriteOffAddrOp_Word16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
308 emitPrimOp res WriteOffAddrOp_Word32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
309 emitPrimOp res WriteOffAddrOp_Word64 args live = doWriteOffAddrOp Nothing I64 res args
313 emitPrimOp res WriteByteArrayOp_Char args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
314 emitPrimOp res WriteByteArrayOp_WideChar args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
315 emitPrimOp res WriteByteArrayOp_Int args live = doWriteByteArrayOp Nothing wordRep res args
316 emitPrimOp res WriteByteArrayOp_Word args live = doWriteByteArrayOp Nothing wordRep res args
317 emitPrimOp res WriteByteArrayOp_Addr args live = doWriteByteArrayOp Nothing wordRep res args
318 emitPrimOp res WriteByteArrayOp_Float args live = doWriteByteArrayOp Nothing F32 res args
319 emitPrimOp res WriteByteArrayOp_Double args live = doWriteByteArrayOp Nothing F64 res args
320 emitPrimOp res WriteByteArrayOp_StablePtr args live = doWriteByteArrayOp Nothing wordRep res args
321 emitPrimOp res WriteByteArrayOp_Int8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
322 emitPrimOp res WriteByteArrayOp_Int16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
323 emitPrimOp res WriteByteArrayOp_Int32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
324 emitPrimOp res WriteByteArrayOp_Int64 args live = doWriteByteArrayOp Nothing I64 res args
325 emitPrimOp res WriteByteArrayOp_Word8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
326 emitPrimOp res WriteByteArrayOp_Word16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
327 emitPrimOp res WriteByteArrayOp_Word32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
328 emitPrimOp res WriteByteArrayOp_Word64 args live = doWriteByteArrayOp Nothing I64 res args
331 -- The rest just translate straightforwardly
332 emitPrimOp [res] op [arg] live
334 = stmtC (CmmAssign (CmmLocal res) arg)
336 | Just (mop,rep) <- narrowOp op
337 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp (mop rep wordRep) [
338 CmmMachOp (mop wordRep rep) [arg]]))
340 emitPrimOp [res] op args live
341 | Just prim <- callishOp op
342 = do vols <- getVolatileRegs live
343 emitForeignCall' PlayRisky
346 [(a,NoHint) | a<-args] -- ToDo: hints?
348 NoC_SRT -- No SRT b/c we do PlayRisky
350 | Just mop <- translateOp op
351 = let stmt = CmmAssign (CmmLocal res) (CmmMachOp mop args) in
355 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
358 -- These PrimOps are NOPs in Cmm
360 nopOp Int2WordOp = True
361 nopOp Word2IntOp = True
362 nopOp Int2AddrOp = True
363 nopOp Addr2IntOp = True
364 nopOp ChrOp = True -- Int# and Char# are rep'd the same
368 -- These PrimOps turn into double casts
370 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
371 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
372 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
373 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
374 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
375 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
378 -- Native word signless ops
380 translateOp IntAddOp = Just mo_wordAdd
381 translateOp IntSubOp = Just mo_wordSub
382 translateOp WordAddOp = Just mo_wordAdd
383 translateOp WordSubOp = Just mo_wordSub
384 translateOp AddrAddOp = Just mo_wordAdd
385 translateOp AddrSubOp = Just mo_wordSub
387 translateOp IntEqOp = Just mo_wordEq
388 translateOp IntNeOp = Just mo_wordNe
389 translateOp WordEqOp = Just mo_wordEq
390 translateOp WordNeOp = Just mo_wordNe
391 translateOp AddrEqOp = Just mo_wordEq
392 translateOp AddrNeOp = Just mo_wordNe
394 translateOp AndOp = Just mo_wordAnd
395 translateOp OrOp = Just mo_wordOr
396 translateOp XorOp = Just mo_wordXor
397 translateOp NotOp = Just mo_wordNot
398 translateOp SllOp = Just mo_wordShl
399 translateOp SrlOp = Just mo_wordUShr
401 translateOp AddrRemOp = Just mo_wordURem
403 -- Native word signed ops
405 translateOp IntMulOp = Just mo_wordMul
406 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
407 translateOp IntQuotOp = Just mo_wordSQuot
408 translateOp IntRemOp = Just mo_wordSRem
409 translateOp IntNegOp = Just mo_wordSNeg
412 translateOp IntGeOp = Just mo_wordSGe
413 translateOp IntLeOp = Just mo_wordSLe
414 translateOp IntGtOp = Just mo_wordSGt
415 translateOp IntLtOp = Just mo_wordSLt
417 translateOp ISllOp = Just mo_wordShl
418 translateOp ISraOp = Just mo_wordSShr
419 translateOp ISrlOp = Just mo_wordUShr
421 -- Native word unsigned ops
423 translateOp WordGeOp = Just mo_wordUGe
424 translateOp WordLeOp = Just mo_wordULe
425 translateOp WordGtOp = Just mo_wordUGt
426 translateOp WordLtOp = Just mo_wordULt
428 translateOp WordMulOp = Just mo_wordMul
429 translateOp WordQuotOp = Just mo_wordUQuot
430 translateOp WordRemOp = Just mo_wordURem
432 translateOp AddrGeOp = Just mo_wordUGe
433 translateOp AddrLeOp = Just mo_wordULe
434 translateOp AddrGtOp = Just mo_wordUGt
435 translateOp AddrLtOp = Just mo_wordULt
439 translateOp CharEqOp = Just (MO_Eq wordRep)
440 translateOp CharNeOp = Just (MO_Ne wordRep)
441 translateOp CharGeOp = Just (MO_U_Ge wordRep)
442 translateOp CharLeOp = Just (MO_U_Le wordRep)
443 translateOp CharGtOp = Just (MO_U_Gt wordRep)
444 translateOp CharLtOp = Just (MO_U_Lt wordRep)
448 translateOp DoubleEqOp = Just (MO_Eq F64)
449 translateOp DoubleNeOp = Just (MO_Ne F64)
450 translateOp DoubleGeOp = Just (MO_S_Ge F64)
451 translateOp DoubleLeOp = Just (MO_S_Le F64)
452 translateOp DoubleGtOp = Just (MO_S_Gt F64)
453 translateOp DoubleLtOp = Just (MO_S_Lt F64)
455 translateOp DoubleAddOp = Just (MO_Add F64)
456 translateOp DoubleSubOp = Just (MO_Sub F64)
457 translateOp DoubleMulOp = Just (MO_Mul F64)
458 translateOp DoubleDivOp = Just (MO_S_Quot F64)
459 translateOp DoubleNegOp = Just (MO_S_Neg F64)
463 translateOp FloatEqOp = Just (MO_Eq F32)
464 translateOp FloatNeOp = Just (MO_Ne F32)
465 translateOp FloatGeOp = Just (MO_S_Ge F32)
466 translateOp FloatLeOp = Just (MO_S_Le F32)
467 translateOp FloatGtOp = Just (MO_S_Gt F32)
468 translateOp FloatLtOp = Just (MO_S_Lt F32)
470 translateOp FloatAddOp = Just (MO_Add F32)
471 translateOp FloatSubOp = Just (MO_Sub F32)
472 translateOp FloatMulOp = Just (MO_Mul F32)
473 translateOp FloatDivOp = Just (MO_S_Quot F32)
474 translateOp FloatNegOp = Just (MO_S_Neg F32)
478 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
479 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
481 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
482 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
484 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
485 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
487 -- Word comparisons masquerading as more exotic things.
489 translateOp SameMutVarOp = Just mo_wordEq
490 translateOp SameMVarOp = Just mo_wordEq
491 translateOp SameMutableArrayOp = Just mo_wordEq
492 translateOp SameMutableByteArrayOp = Just mo_wordEq
493 translateOp SameTVarOp = Just mo_wordEq
494 translateOp EqStablePtrOp = Just mo_wordEq
496 translateOp _ = Nothing
498 -- These primops are implemented by CallishMachOps, because they sometimes
499 -- turn into foreign calls depending on the backend.
501 callishOp DoublePowerOp = Just MO_F64_Pwr
502 callishOp DoubleSinOp = Just MO_F64_Sin
503 callishOp DoubleCosOp = Just MO_F64_Cos
504 callishOp DoubleTanOp = Just MO_F64_Tan
505 callishOp DoubleSinhOp = Just MO_F64_Sinh
506 callishOp DoubleCoshOp = Just MO_F64_Cosh
507 callishOp DoubleTanhOp = Just MO_F64_Tanh
508 callishOp DoubleAsinOp = Just MO_F64_Asin
509 callishOp DoubleAcosOp = Just MO_F64_Acos
510 callishOp DoubleAtanOp = Just MO_F64_Atan
511 callishOp DoubleLogOp = Just MO_F64_Log
512 callishOp DoubleExpOp = Just MO_F64_Exp
513 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
515 callishOp FloatPowerOp = Just MO_F32_Pwr
516 callishOp FloatSinOp = Just MO_F32_Sin
517 callishOp FloatCosOp = Just MO_F32_Cos
518 callishOp FloatTanOp = Just MO_F32_Tan
519 callishOp FloatSinhOp = Just MO_F32_Sinh
520 callishOp FloatCoshOp = Just MO_F32_Cosh
521 callishOp FloatTanhOp = Just MO_F32_Tanh
522 callishOp FloatAsinOp = Just MO_F32_Asin
523 callishOp FloatAcosOp = Just MO_F32_Acos
524 callishOp FloatAtanOp = Just MO_F32_Atan
525 callishOp FloatLogOp = Just MO_F32_Log
526 callishOp FloatExpOp = Just MO_F32_Exp
527 callishOp FloatSqrtOp = Just MO_F32_Sqrt
529 callishOp _ = Nothing
531 ------------------------------------------------------------------------------
532 -- Helpers for translating various minor variants of array indexing.
534 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
535 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
536 doIndexOffAddrOp _ _ _ _
537 = panic "CgPrimOp: doIndexOffAddrOp"
539 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
540 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
541 doIndexByteArrayOp _ _ _ _
542 = panic "CgPrimOp: doIndexByteArrayOp"
544 doReadPtrArrayOp res addr idx
545 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
548 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
549 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
550 doWriteOffAddrOp _ _ _ _
551 = panic "CgPrimOp: doWriteOffAddrOp"
553 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
554 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
555 doWriteByteArrayOp _ _ _ _
556 = panic "CgPrimOp: doWriteByteArrayOp"
558 doWritePtrArrayOp addr idx val
559 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
560 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
563 mkBasicIndexedRead off Nothing read_rep res base idx
564 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexOffExpr off read_rep base idx))
565 mkBasicIndexedRead off (Just cast) read_rep res base idx
566 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp cast [
567 cmmLoadIndexOffExpr off read_rep base idx]))
569 mkBasicIndexedWrite off Nothing write_rep base idx val
570 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
571 mkBasicIndexedWrite off (Just cast) write_rep base idx val
572 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
574 -- ----------------------------------------------------------------------------
577 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
578 cmmIndexOffExpr off rep base idx
579 = cmmIndexExpr rep (cmmOffsetB base off) idx
581 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
582 cmmLoadIndexOffExpr off rep base idx
583 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
585 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
586 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr