1 -----------------------------------------------------------------------------
3 -- Code generation for PrimOps.
5 -- (c) The University of Glasgow 2004-2006
7 -----------------------------------------------------------------------------
13 #include "HsVersions.h"
32 -- ---------------------------------------------------------------------------
33 -- Code generation for PrimOps
35 cgPrimOp :: CmmFormals -- where to put the results
37 -> [StgArg] -- arguments
38 -> StgLiveVars -- live vars, in case we need to save them
41 cgPrimOp results op args live
42 = do arg_exprs <- getArgAmodes args
43 let non_void_args = [ e | (r,e) <- arg_exprs, nonVoidArg r ]
44 emitPrimOp results op non_void_args live
47 emitPrimOp :: CmmFormals -- where to put the results
49 -> [CmmExpr] -- arguments
50 -> StgLiveVars -- live vars, in case we need to save them
53 -- First we handle various awkward cases specially. The remaining
54 -- easy cases are then handled by translateOp, defined below.
56 emitPrimOp [res_r,res_c] IntAddCOp [aa,bb] live
58 With some bit-twiddling, we can define int{Add,Sub}Czh portably in
59 C, and without needing any comparisons. This may not be the
60 fastest way to do it - if you have better code, please send it! --SDM
62 Return : r = a + b, c = 0 if no overflow, 1 on overflow.
64 We currently don't make use of the r value if c is != 0 (i.e.
65 overflow), we just convert to big integers and try again. This
66 could be improved by making r and c the correct values for
67 plugging into a new J#.
69 { r = ((I_)(a)) + ((I_)(b)); \
70 c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
71 >> (BITS_IN (I_) - 1); \
73 Wading through the mass of bracketry, it seems to reduce to:
74 c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
78 CmmAssign (CmmLocal res_r) (CmmMachOp mo_wordAdd [aa,bb]),
79 CmmAssign (CmmLocal res_c) $
80 CmmMachOp mo_wordUShr [
81 CmmMachOp mo_wordAnd [
82 CmmMachOp mo_wordNot [CmmMachOp mo_wordXor [aa,bb]],
83 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal res_r)]
85 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
90 emitPrimOp [res_r,res_c] IntSubCOp [aa,bb] live
92 #define subIntCzh(r,c,a,b) \
93 { r = ((I_)(a)) - ((I_)(b)); \
94 c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
95 >> (BITS_IN (I_) - 1); \
98 c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
101 CmmAssign (CmmLocal res_r) (CmmMachOp mo_wordSub [aa,bb]),
102 CmmAssign (CmmLocal res_c) $
103 CmmMachOp mo_wordUShr [
104 CmmMachOp mo_wordAnd [
105 CmmMachOp mo_wordXor [aa,bb],
106 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal res_r)]
108 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
113 emitPrimOp [res] ParOp [arg] live
115 -- for now, just implement this in a C function
116 -- later, we might want to inline it.
117 vols <- getVolatileRegs live
118 emitForeignCall' PlayRisky
120 (CmmCallee newspark CCallConv)
121 [(CmmReg (CmmGlobal BaseReg), PtrHint), (arg,PtrHint)]
123 NoC_SRT -- No SRT b/c we do PlayRisky
125 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
127 emitPrimOp [res] ReadMutVarOp [mutv] live
128 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexW mutv fixedHdrSize))
130 emitPrimOp [] WriteMutVarOp [mutv,var] live
132 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
133 vols <- getVolatileRegs live
134 emitForeignCall' PlayRisky
136 (CmmCallee (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
138 [(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
140 NoC_SRT -- No SRT b/c we do PlayRisky
142 -- #define sizzeofByteArrayzh(r,a) \
143 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
144 emitPrimOp [res] SizeofByteArrayOp [arg] live
146 CmmAssign (CmmLocal 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 (CmmLocal res) (cmmOffsetB arg arrWordsHdrSize))
165 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
166 emitPrimOp [res] StableNameToIntOp [arg] live
167 = stmtC (CmmAssign (CmmLocal 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 (CmmLocal res) (CmmMachOp mo_wordEq [
173 cmmLoadIndexW arg1 fixedHdrSize,
174 cmmLoadIndexW arg2 fixedHdrSize
178 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
179 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp mo_wordEq [arg1,arg2]))
181 -- #define addrToHValuezh(r,a) r=(P_)a
182 emitPrimOp [res] AddrToHValueOp [arg] live
183 = stmtC (CmmAssign (CmmLocal res) arg)
185 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
186 -- Note: argument may be tagged!
187 emitPrimOp [res] DataToTagOp [arg] live
188 = stmtC (CmmAssign (CmmLocal res) (getConstrTag (cmmUntag 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)),
202 CmmAssign (CmmLocal res) arg ]
204 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
205 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
206 = stmtC (CmmAssign (CmmLocal 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 (CmmLocal res) arg)
334 | Just (mop,rep) <- narrowOp op
335 = stmtC (CmmAssign (CmmLocal 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?
346 NoC_SRT -- No SRT b/c we do PlayRisky
348 | Just mop <- translateOp op
349 = let stmt = CmmAssign (CmmLocal res) (CmmMachOp mop args) in
353 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
356 -- These PrimOps are NOPs in Cmm
358 nopOp Int2WordOp = True
359 nopOp Word2IntOp = True
360 nopOp Int2AddrOp = True
361 nopOp Addr2IntOp = True
362 nopOp ChrOp = True -- Int# and Char# are rep'd the same
366 -- These PrimOps turn into double casts
368 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
369 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
370 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
371 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
372 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
373 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
376 -- Native word signless ops
378 translateOp IntAddOp = Just mo_wordAdd
379 translateOp IntSubOp = Just mo_wordSub
380 translateOp WordAddOp = Just mo_wordAdd
381 translateOp WordSubOp = Just mo_wordSub
382 translateOp AddrAddOp = Just mo_wordAdd
383 translateOp AddrSubOp = Just mo_wordSub
385 translateOp IntEqOp = Just mo_wordEq
386 translateOp IntNeOp = Just mo_wordNe
387 translateOp WordEqOp = Just mo_wordEq
388 translateOp WordNeOp = Just mo_wordNe
389 translateOp AddrEqOp = Just mo_wordEq
390 translateOp AddrNeOp = Just mo_wordNe
392 translateOp AndOp = Just mo_wordAnd
393 translateOp OrOp = Just mo_wordOr
394 translateOp XorOp = Just mo_wordXor
395 translateOp NotOp = Just mo_wordNot
396 translateOp SllOp = Just mo_wordShl
397 translateOp SrlOp = Just mo_wordUShr
399 translateOp AddrRemOp = Just mo_wordURem
401 -- Native word signed ops
403 translateOp IntMulOp = Just mo_wordMul
404 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
405 translateOp IntQuotOp = Just mo_wordSQuot
406 translateOp IntRemOp = Just mo_wordSRem
407 translateOp IntNegOp = Just mo_wordSNeg
410 translateOp IntGeOp = Just mo_wordSGe
411 translateOp IntLeOp = Just mo_wordSLe
412 translateOp IntGtOp = Just mo_wordSGt
413 translateOp IntLtOp = Just mo_wordSLt
415 translateOp ISllOp = Just mo_wordShl
416 translateOp ISraOp = Just mo_wordSShr
417 translateOp ISrlOp = Just mo_wordUShr
419 -- Native word unsigned ops
421 translateOp WordGeOp = Just mo_wordUGe
422 translateOp WordLeOp = Just mo_wordULe
423 translateOp WordGtOp = Just mo_wordUGt
424 translateOp WordLtOp = Just mo_wordULt
426 translateOp WordMulOp = Just mo_wordMul
427 translateOp WordQuotOp = Just mo_wordUQuot
428 translateOp WordRemOp = Just mo_wordURem
430 translateOp AddrGeOp = Just mo_wordUGe
431 translateOp AddrLeOp = Just mo_wordULe
432 translateOp AddrGtOp = Just mo_wordUGt
433 translateOp AddrLtOp = Just mo_wordULt
437 translateOp CharEqOp = Just (MO_Eq wordRep)
438 translateOp CharNeOp = Just (MO_Ne wordRep)
439 translateOp CharGeOp = Just (MO_U_Ge wordRep)
440 translateOp CharLeOp = Just (MO_U_Le wordRep)
441 translateOp CharGtOp = Just (MO_U_Gt wordRep)
442 translateOp CharLtOp = Just (MO_U_Lt wordRep)
446 translateOp DoubleEqOp = Just (MO_Eq F64)
447 translateOp DoubleNeOp = Just (MO_Ne F64)
448 translateOp DoubleGeOp = Just (MO_S_Ge F64)
449 translateOp DoubleLeOp = Just (MO_S_Le F64)
450 translateOp DoubleGtOp = Just (MO_S_Gt F64)
451 translateOp DoubleLtOp = Just (MO_S_Lt F64)
453 translateOp DoubleAddOp = Just (MO_Add F64)
454 translateOp DoubleSubOp = Just (MO_Sub F64)
455 translateOp DoubleMulOp = Just (MO_Mul F64)
456 translateOp DoubleDivOp = Just (MO_S_Quot F64)
457 translateOp DoubleNegOp = Just (MO_S_Neg F64)
461 translateOp FloatEqOp = Just (MO_Eq F32)
462 translateOp FloatNeOp = Just (MO_Ne F32)
463 translateOp FloatGeOp = Just (MO_S_Ge F32)
464 translateOp FloatLeOp = Just (MO_S_Le F32)
465 translateOp FloatGtOp = Just (MO_S_Gt F32)
466 translateOp FloatLtOp = Just (MO_S_Lt F32)
468 translateOp FloatAddOp = Just (MO_Add F32)
469 translateOp FloatSubOp = Just (MO_Sub F32)
470 translateOp FloatMulOp = Just (MO_Mul F32)
471 translateOp FloatDivOp = Just (MO_S_Quot F32)
472 translateOp FloatNegOp = Just (MO_S_Neg F32)
476 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
477 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
479 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
480 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
482 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
483 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
485 -- Word comparisons masquerading as more exotic things.
487 translateOp SameMutVarOp = Just mo_wordEq
488 translateOp SameMVarOp = Just mo_wordEq
489 translateOp SameMutableArrayOp = Just mo_wordEq
490 translateOp SameMutableByteArrayOp = Just mo_wordEq
491 translateOp SameTVarOp = Just mo_wordEq
492 translateOp EqStablePtrOp = Just mo_wordEq
494 translateOp _ = Nothing
496 -- These primops are implemented by CallishMachOps, because they sometimes
497 -- turn into foreign calls depending on the backend.
499 callishOp DoublePowerOp = Just MO_F64_Pwr
500 callishOp DoubleSinOp = Just MO_F64_Sin
501 callishOp DoubleCosOp = Just MO_F64_Cos
502 callishOp DoubleTanOp = Just MO_F64_Tan
503 callishOp DoubleSinhOp = Just MO_F64_Sinh
504 callishOp DoubleCoshOp = Just MO_F64_Cosh
505 callishOp DoubleTanhOp = Just MO_F64_Tanh
506 callishOp DoubleAsinOp = Just MO_F64_Asin
507 callishOp DoubleAcosOp = Just MO_F64_Acos
508 callishOp DoubleAtanOp = Just MO_F64_Atan
509 callishOp DoubleLogOp = Just MO_F64_Log
510 callishOp DoubleExpOp = Just MO_F64_Exp
511 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
513 callishOp FloatPowerOp = Just MO_F32_Pwr
514 callishOp FloatSinOp = Just MO_F32_Sin
515 callishOp FloatCosOp = Just MO_F32_Cos
516 callishOp FloatTanOp = Just MO_F32_Tan
517 callishOp FloatSinhOp = Just MO_F32_Sinh
518 callishOp FloatCoshOp = Just MO_F32_Cosh
519 callishOp FloatTanhOp = Just MO_F32_Tanh
520 callishOp FloatAsinOp = Just MO_F32_Asin
521 callishOp FloatAcosOp = Just MO_F32_Acos
522 callishOp FloatAtanOp = Just MO_F32_Atan
523 callishOp FloatLogOp = Just MO_F32_Log
524 callishOp FloatExpOp = Just MO_F32_Exp
525 callishOp FloatSqrtOp = Just MO_F32_Sqrt
527 callishOp _ = Nothing
529 ------------------------------------------------------------------------------
530 -- Helpers for translating various minor variants of array indexing.
532 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
533 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
534 doIndexOffAddrOp _ _ _ _
535 = panic "CgPrimOp: doIndexOffAddrOp"
537 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
538 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
539 doIndexByteArrayOp _ _ _ _
540 = panic "CgPrimOp: doIndexByteArrayOp"
542 doReadPtrArrayOp res addr idx
543 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
546 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
547 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
548 doWriteOffAddrOp _ _ _ _
549 = panic "CgPrimOp: doWriteOffAddrOp"
551 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
552 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
553 doWriteByteArrayOp _ _ _ _
554 = panic "CgPrimOp: doWriteByteArrayOp"
556 doWritePtrArrayOp addr idx val
557 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
558 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
561 mkBasicIndexedRead off Nothing read_rep res base idx
562 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexOffExpr off read_rep base idx))
563 mkBasicIndexedRead off (Just cast) read_rep res base idx
564 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp cast [
565 cmmLoadIndexOffExpr off read_rep base idx]))
567 mkBasicIndexedWrite off Nothing write_rep base idx val
568 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
569 mkBasicIndexedWrite off (Just cast) write_rep base idx val
570 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
572 -- ----------------------------------------------------------------------------
575 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
576 cmmIndexOffExpr off rep base idx
577 = cmmIndexExpr rep (cmmOffsetB base off) idx
579 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
580 cmmLoadIndexOffExpr off rep base idx
581 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
583 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
584 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr