1 -----------------------------------------------------------------------------
3 -- Code generation for PrimOps.
5 -- (c) The University of Glasgow 2004-2006
7 -----------------------------------------------------------------------------
10 -- The above warning supression flag is a temporary kludge.
11 -- While working on this module you are encouraged to remove it and fix
12 -- any warnings in the module. See
13 -- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
20 #include "HsVersions.h"
39 -- ---------------------------------------------------------------------------
40 -- Code generation for PrimOps
42 cgPrimOp :: CmmFormalsWithoutKinds -- where to put the results
44 -> [StgArg] -- arguments
45 -> StgLiveVars -- live vars, in case we need to save them
48 cgPrimOp results op args live
49 = do arg_exprs <- getArgAmodes args
50 let non_void_args = [ e | (r,e) <- arg_exprs, nonVoidArg r ]
51 emitPrimOp results op non_void_args live
54 emitPrimOp :: CmmFormalsWithoutKinds -- where to put the results
56 -> [CmmExpr] -- arguments
57 -> StgLiveVars -- live vars, in case we need to save them
60 -- First we handle various awkward cases specially. The remaining
61 -- easy cases are then handled by translateOp, defined below.
63 emitPrimOp [res_r,res_c] IntAddCOp [aa,bb] live
65 With some bit-twiddling, we can define int{Add,Sub}Czh portably in
66 C, and without needing any comparisons. This may not be the
67 fastest way to do it - if you have better code, please send it! --SDM
69 Return : r = a + b, c = 0 if no overflow, 1 on overflow.
71 We currently don't make use of the r value if c is != 0 (i.e.
72 overflow), we just convert to big integers and try again. This
73 could be improved by making r and c the correct values for
74 plugging into a new J#.
76 { r = ((I_)(a)) + ((I_)(b)); \
77 c = ((StgWord)(~(((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
78 >> (BITS_IN (I_) - 1); \
80 Wading through the mass of bracketry, it seems to reduce to:
81 c = ( (~(a^b)) & (a^r) ) >>unsigned (BITS_IN(I_)-1)
85 CmmAssign (CmmLocal res_r) (CmmMachOp mo_wordAdd [aa,bb]),
86 CmmAssign (CmmLocal res_c) $
87 CmmMachOp mo_wordUShr [
88 CmmMachOp mo_wordAnd [
89 CmmMachOp mo_wordNot [CmmMachOp mo_wordXor [aa,bb]],
90 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal res_r)]
92 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
97 emitPrimOp [res_r,res_c] IntSubCOp [aa,bb] live
99 #define subIntCzh(r,c,a,b) \
100 { r = ((I_)(a)) - ((I_)(b)); \
101 c = ((StgWord)((((I_)(a))^((I_)(b))) & (((I_)(a))^r))) \
102 >> (BITS_IN (I_) - 1); \
105 c = ((a^b) & (a^r)) >>unsigned (BITS_IN(I_)-1)
108 CmmAssign (CmmLocal res_r) (CmmMachOp mo_wordSub [aa,bb]),
109 CmmAssign (CmmLocal res_c) $
110 CmmMachOp mo_wordUShr [
111 CmmMachOp mo_wordAnd [
112 CmmMachOp mo_wordXor [aa,bb],
113 CmmMachOp mo_wordXor [aa, CmmReg (CmmLocal res_r)]
115 CmmLit (mkIntCLit (wORD_SIZE_IN_BITS - 1))
120 emitPrimOp [res] ParOp [arg] live
122 -- for now, just implement this in a C function
123 -- later, we might want to inline it.
124 vols <- getVolatileRegs live
125 emitForeignCall' PlayRisky
127 (CmmCallee newspark CCallConv)
128 [(CmmReg (CmmGlobal BaseReg), PtrHint), (arg,PtrHint)]
130 NoC_SRT -- No SRT b/c we do PlayRisky
133 newspark = CmmLit (CmmLabel (mkRtsCodeLabel SLIT("newSpark")))
135 emitPrimOp [res] ReadMutVarOp [mutv] live
136 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexW mutv fixedHdrSize))
138 emitPrimOp [] WriteMutVarOp [mutv,var] live
140 stmtC (CmmStore (cmmOffsetW mutv fixedHdrSize) var)
141 vols <- getVolatileRegs live
142 emitForeignCall' PlayRisky
144 (CmmCallee (CmmLit (CmmLabel mkDirty_MUT_VAR_Label))
146 [(CmmReg (CmmGlobal BaseReg), PtrHint), (mutv,PtrHint)]
148 NoC_SRT -- No SRT b/c we do PlayRisky
151 -- #define sizzeofByteArrayzh(r,a) \
152 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
153 emitPrimOp [res] SizeofByteArrayOp [arg] live
155 CmmAssign (CmmLocal res) (CmmMachOp mo_wordMul [
156 cmmLoadIndexW arg fixedHdrSize,
157 CmmLit (mkIntCLit wORD_SIZE)
160 -- #define sizzeofMutableByteArrayzh(r,a) \
161 -- r = (((StgArrWords *)(a))->words * sizeof(W_))
162 emitPrimOp [res] SizeofMutableByteArrayOp [arg] live
163 = emitPrimOp [res] SizeofByteArrayOp [arg] live
166 -- #define touchzh(o) /* nothing */
167 emitPrimOp [] TouchOp [arg] live
170 -- #define byteArrayContentszh(r,a) r = BYTE_ARR_CTS(a)
171 emitPrimOp [res] ByteArrayContents_Char [arg] live
172 = stmtC (CmmAssign (CmmLocal res) (cmmOffsetB arg arrWordsHdrSize))
174 -- #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
175 emitPrimOp [res] StableNameToIntOp [arg] live
176 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexW arg fixedHdrSize))
178 -- #define eqStableNamezh(r,sn1,sn2) \
179 -- (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
180 emitPrimOp [res] EqStableNameOp [arg1,arg2] live
181 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp mo_wordEq [
182 cmmLoadIndexW arg1 fixedHdrSize,
183 cmmLoadIndexW arg2 fixedHdrSize
187 emitPrimOp [res] ReallyUnsafePtrEqualityOp [arg1,arg2] live
188 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp mo_wordEq [arg1,arg2]))
190 -- #define addrToHValuezh(r,a) r=(P_)a
191 emitPrimOp [res] AddrToHValueOp [arg] live
192 = stmtC (CmmAssign (CmmLocal res) arg)
194 -- #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
195 -- Note: argument may be tagged!
196 emitPrimOp [res] DataToTagOp [arg] live
197 = stmtC (CmmAssign (CmmLocal res) (getConstrTag (cmmUntag arg)))
199 {- Freezing arrays-of-ptrs requires changing an info table, for the
200 benefit of the generational collector. It needs to scavenge mutable
201 objects, even if they are in old space. When they become immutable,
202 they can be removed from this scavenge list. -}
204 -- #define unsafeFreezzeArrayzh(r,a)
206 -- SET_INFO((StgClosure *)a,&stg_MUT_ARR_PTRS_FROZEN0_info);
209 emitPrimOp [res] UnsafeFreezeArrayOp [arg] live
210 = stmtsC [ setInfo arg (CmmLit (CmmLabel mkMAP_FROZEN_infoLabel)),
211 CmmAssign (CmmLocal res) arg ]
213 -- #define unsafeFreezzeByteArrayzh(r,a) r=(a)
214 emitPrimOp [res] UnsafeFreezeByteArrayOp [arg] live
215 = stmtC (CmmAssign (CmmLocal res) arg)
217 -- Reading/writing pointer arrays
219 emitPrimOp [r] ReadArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
220 emitPrimOp [r] IndexArrayOp [obj,ix] live = doReadPtrArrayOp r obj ix
221 emitPrimOp [] WriteArrayOp [obj,ix,v] live = doWritePtrArrayOp obj ix v
225 emitPrimOp res IndexOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
226 emitPrimOp res IndexOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
227 emitPrimOp res IndexOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
228 emitPrimOp res IndexOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
229 emitPrimOp res IndexOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
230 emitPrimOp res IndexOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
231 emitPrimOp res IndexOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
232 emitPrimOp res IndexOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
233 emitPrimOp res IndexOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
234 emitPrimOp res IndexOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
235 emitPrimOp res IndexOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
236 emitPrimOp res IndexOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
237 emitPrimOp res IndexOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
238 emitPrimOp res IndexOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
239 emitPrimOp res IndexOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
240 emitPrimOp res IndexOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
242 -- ReadXXXoffAddr, which are identical, for our purposes, to IndexXXXoffAddr.
244 emitPrimOp res ReadOffAddrOp_Char args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
245 emitPrimOp res ReadOffAddrOp_WideChar args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
246 emitPrimOp res ReadOffAddrOp_Int args live = doIndexOffAddrOp Nothing wordRep res args
247 emitPrimOp res ReadOffAddrOp_Word args live = doIndexOffAddrOp Nothing wordRep res args
248 emitPrimOp res ReadOffAddrOp_Addr args live = doIndexOffAddrOp Nothing wordRep res args
249 emitPrimOp res ReadOffAddrOp_Float args live = doIndexOffAddrOp Nothing F32 res args
250 emitPrimOp res ReadOffAddrOp_Double args live = doIndexOffAddrOp Nothing F64 res args
251 emitPrimOp res ReadOffAddrOp_StablePtr args live = doIndexOffAddrOp Nothing wordRep res args
252 emitPrimOp res ReadOffAddrOp_Int8 args live = doIndexOffAddrOp (Just mo_s_8ToWord) I8 res args
253 emitPrimOp res ReadOffAddrOp_Int16 args live = doIndexOffAddrOp (Just mo_s_16ToWord) I16 res args
254 emitPrimOp res ReadOffAddrOp_Int32 args live = doIndexOffAddrOp (Just mo_s_32ToWord) I32 res args
255 emitPrimOp res ReadOffAddrOp_Int64 args live = doIndexOffAddrOp Nothing I64 res args
256 emitPrimOp res ReadOffAddrOp_Word8 args live = doIndexOffAddrOp (Just mo_u_8ToWord) I8 res args
257 emitPrimOp res ReadOffAddrOp_Word16 args live = doIndexOffAddrOp (Just mo_u_16ToWord) I16 res args
258 emitPrimOp res ReadOffAddrOp_Word32 args live = doIndexOffAddrOp (Just mo_u_32ToWord) I32 res args
259 emitPrimOp res ReadOffAddrOp_Word64 args live = doIndexOffAddrOp Nothing I64 res args
263 emitPrimOp res IndexByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
264 emitPrimOp res IndexByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
265 emitPrimOp res IndexByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
266 emitPrimOp res IndexByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
267 emitPrimOp res IndexByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
268 emitPrimOp res IndexByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
269 emitPrimOp res IndexByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
270 emitPrimOp res IndexByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
271 emitPrimOp res IndexByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
272 emitPrimOp res IndexByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
273 emitPrimOp res IndexByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
274 emitPrimOp res IndexByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
275 emitPrimOp res IndexByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
276 emitPrimOp res IndexByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
277 emitPrimOp res IndexByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
278 emitPrimOp res IndexByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
280 -- ReadXXXArray, identical to IndexXXXArray.
282 emitPrimOp res ReadByteArrayOp_Char args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
283 emitPrimOp res ReadByteArrayOp_WideChar args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
284 emitPrimOp res ReadByteArrayOp_Int args live = doIndexByteArrayOp Nothing wordRep res args
285 emitPrimOp res ReadByteArrayOp_Word args live = doIndexByteArrayOp Nothing wordRep res args
286 emitPrimOp res ReadByteArrayOp_Addr args live = doIndexByteArrayOp Nothing wordRep res args
287 emitPrimOp res ReadByteArrayOp_Float args live = doIndexByteArrayOp Nothing F32 res args
288 emitPrimOp res ReadByteArrayOp_Double args live = doIndexByteArrayOp Nothing F64 res args
289 emitPrimOp res ReadByteArrayOp_StablePtr args live = doIndexByteArrayOp Nothing wordRep res args
290 emitPrimOp res ReadByteArrayOp_Int8 args live = doIndexByteArrayOp (Just mo_s_8ToWord) I8 res args
291 emitPrimOp res ReadByteArrayOp_Int16 args live = doIndexByteArrayOp (Just mo_s_16ToWord) I16 res args
292 emitPrimOp res ReadByteArrayOp_Int32 args live = doIndexByteArrayOp (Just mo_s_32ToWord) I32 res args
293 emitPrimOp res ReadByteArrayOp_Int64 args live = doIndexByteArrayOp Nothing I64 res args
294 emitPrimOp res ReadByteArrayOp_Word8 args live = doIndexByteArrayOp (Just mo_u_8ToWord) I8 res args
295 emitPrimOp res ReadByteArrayOp_Word16 args live = doIndexByteArrayOp (Just mo_u_16ToWord) I16 res args
296 emitPrimOp res ReadByteArrayOp_Word32 args live = doIndexByteArrayOp (Just mo_u_32ToWord) I32 res args
297 emitPrimOp res ReadByteArrayOp_Word64 args live = doIndexByteArrayOp Nothing I64 res args
301 emitPrimOp res WriteOffAddrOp_Char args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
302 emitPrimOp res WriteOffAddrOp_WideChar args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
303 emitPrimOp res WriteOffAddrOp_Int args live = doWriteOffAddrOp Nothing wordRep res args
304 emitPrimOp res WriteOffAddrOp_Word args live = doWriteOffAddrOp Nothing wordRep res args
305 emitPrimOp res WriteOffAddrOp_Addr args live = doWriteOffAddrOp Nothing wordRep res args
306 emitPrimOp res WriteOffAddrOp_Float args live = doWriteOffAddrOp Nothing F32 res args
307 emitPrimOp res WriteOffAddrOp_Double args live = doWriteOffAddrOp Nothing F64 res args
308 emitPrimOp res WriteOffAddrOp_StablePtr args live = doWriteOffAddrOp Nothing wordRep res args
309 emitPrimOp res WriteOffAddrOp_Int8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
310 emitPrimOp res WriteOffAddrOp_Int16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
311 emitPrimOp res WriteOffAddrOp_Int32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
312 emitPrimOp res WriteOffAddrOp_Int64 args live = doWriteOffAddrOp Nothing I64 res args
313 emitPrimOp res WriteOffAddrOp_Word8 args live = doWriteOffAddrOp (Just mo_WordTo8) I8 res args
314 emitPrimOp res WriteOffAddrOp_Word16 args live = doWriteOffAddrOp (Just mo_WordTo16) I16 res args
315 emitPrimOp res WriteOffAddrOp_Word32 args live = doWriteOffAddrOp (Just mo_WordTo32) I32 res args
316 emitPrimOp res WriteOffAddrOp_Word64 args live = doWriteOffAddrOp Nothing I64 res args
320 emitPrimOp res WriteByteArrayOp_Char args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
321 emitPrimOp res WriteByteArrayOp_WideChar args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
322 emitPrimOp res WriteByteArrayOp_Int args live = doWriteByteArrayOp Nothing wordRep res args
323 emitPrimOp res WriteByteArrayOp_Word args live = doWriteByteArrayOp Nothing wordRep res args
324 emitPrimOp res WriteByteArrayOp_Addr args live = doWriteByteArrayOp Nothing wordRep res args
325 emitPrimOp res WriteByteArrayOp_Float args live = doWriteByteArrayOp Nothing F32 res args
326 emitPrimOp res WriteByteArrayOp_Double args live = doWriteByteArrayOp Nothing F64 res args
327 emitPrimOp res WriteByteArrayOp_StablePtr args live = doWriteByteArrayOp Nothing wordRep res args
328 emitPrimOp res WriteByteArrayOp_Int8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
329 emitPrimOp res WriteByteArrayOp_Int16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
330 emitPrimOp res WriteByteArrayOp_Int32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
331 emitPrimOp res WriteByteArrayOp_Int64 args live = doWriteByteArrayOp Nothing I64 res args
332 emitPrimOp res WriteByteArrayOp_Word8 args live = doWriteByteArrayOp (Just mo_WordTo8) I8 res args
333 emitPrimOp res WriteByteArrayOp_Word16 args live = doWriteByteArrayOp (Just mo_WordTo16) I16 res args
334 emitPrimOp res WriteByteArrayOp_Word32 args live = doWriteByteArrayOp (Just mo_WordTo32) I32 res args
335 emitPrimOp res WriteByteArrayOp_Word64 args live = doWriteByteArrayOp Nothing I64 res args
338 -- The rest just translate straightforwardly
339 emitPrimOp [res] op [arg] live
341 = stmtC (CmmAssign (CmmLocal res) arg)
343 | Just (mop,rep) <- narrowOp op
344 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp (mop rep wordRep) [
345 CmmMachOp (mop wordRep rep) [arg]]))
347 emitPrimOp [res] op args live
348 | Just prim <- callishOp op
349 = do vols <- getVolatileRegs live
350 emitForeignCall' PlayRisky
353 [(a,NoHint) | a<-args] -- ToDo: hints?
355 NoC_SRT -- No SRT b/c we do PlayRisky
358 | Just mop <- translateOp op
359 = let stmt = CmmAssign (CmmLocal res) (CmmMachOp mop args) in
363 = pprPanic "emitPrimOp: can't translate PrimOp" (ppr op)
366 -- These PrimOps are NOPs in Cmm
368 nopOp Int2WordOp = True
369 nopOp Word2IntOp = True
370 nopOp Int2AddrOp = True
371 nopOp Addr2IntOp = True
372 nopOp ChrOp = True -- Int# and Char# are rep'd the same
376 -- These PrimOps turn into double casts
378 narrowOp Narrow8IntOp = Just (MO_S_Conv, I8)
379 narrowOp Narrow16IntOp = Just (MO_S_Conv, I16)
380 narrowOp Narrow32IntOp = Just (MO_S_Conv, I32)
381 narrowOp Narrow8WordOp = Just (MO_U_Conv, I8)
382 narrowOp Narrow16WordOp = Just (MO_U_Conv, I16)
383 narrowOp Narrow32WordOp = Just (MO_U_Conv, I32)
386 -- Native word signless ops
388 translateOp IntAddOp = Just mo_wordAdd
389 translateOp IntSubOp = Just mo_wordSub
390 translateOp WordAddOp = Just mo_wordAdd
391 translateOp WordSubOp = Just mo_wordSub
392 translateOp AddrAddOp = Just mo_wordAdd
393 translateOp AddrSubOp = Just mo_wordSub
395 translateOp IntEqOp = Just mo_wordEq
396 translateOp IntNeOp = Just mo_wordNe
397 translateOp WordEqOp = Just mo_wordEq
398 translateOp WordNeOp = Just mo_wordNe
399 translateOp AddrEqOp = Just mo_wordEq
400 translateOp AddrNeOp = Just mo_wordNe
402 translateOp AndOp = Just mo_wordAnd
403 translateOp OrOp = Just mo_wordOr
404 translateOp XorOp = Just mo_wordXor
405 translateOp NotOp = Just mo_wordNot
406 translateOp SllOp = Just mo_wordShl
407 translateOp SrlOp = Just mo_wordUShr
409 translateOp AddrRemOp = Just mo_wordURem
411 -- Native word signed ops
413 translateOp IntMulOp = Just mo_wordMul
414 translateOp IntMulMayOfloOp = Just (MO_S_MulMayOflo wordRep)
415 translateOp IntQuotOp = Just mo_wordSQuot
416 translateOp IntRemOp = Just mo_wordSRem
417 translateOp IntNegOp = Just mo_wordSNeg
420 translateOp IntGeOp = Just mo_wordSGe
421 translateOp IntLeOp = Just mo_wordSLe
422 translateOp IntGtOp = Just mo_wordSGt
423 translateOp IntLtOp = Just mo_wordSLt
425 translateOp ISllOp = Just mo_wordShl
426 translateOp ISraOp = Just mo_wordSShr
427 translateOp ISrlOp = Just mo_wordUShr
429 -- Native word unsigned ops
431 translateOp WordGeOp = Just mo_wordUGe
432 translateOp WordLeOp = Just mo_wordULe
433 translateOp WordGtOp = Just mo_wordUGt
434 translateOp WordLtOp = Just mo_wordULt
436 translateOp WordMulOp = Just mo_wordMul
437 translateOp WordQuotOp = Just mo_wordUQuot
438 translateOp WordRemOp = Just mo_wordURem
440 translateOp AddrGeOp = Just mo_wordUGe
441 translateOp AddrLeOp = Just mo_wordULe
442 translateOp AddrGtOp = Just mo_wordUGt
443 translateOp AddrLtOp = Just mo_wordULt
447 translateOp CharEqOp = Just (MO_Eq wordRep)
448 translateOp CharNeOp = Just (MO_Ne wordRep)
449 translateOp CharGeOp = Just (MO_U_Ge wordRep)
450 translateOp CharLeOp = Just (MO_U_Le wordRep)
451 translateOp CharGtOp = Just (MO_U_Gt wordRep)
452 translateOp CharLtOp = Just (MO_U_Lt wordRep)
456 translateOp DoubleEqOp = Just (MO_Eq F64)
457 translateOp DoubleNeOp = Just (MO_Ne F64)
458 translateOp DoubleGeOp = Just (MO_S_Ge F64)
459 translateOp DoubleLeOp = Just (MO_S_Le F64)
460 translateOp DoubleGtOp = Just (MO_S_Gt F64)
461 translateOp DoubleLtOp = Just (MO_S_Lt F64)
463 translateOp DoubleAddOp = Just (MO_Add F64)
464 translateOp DoubleSubOp = Just (MO_Sub F64)
465 translateOp DoubleMulOp = Just (MO_Mul F64)
466 translateOp DoubleDivOp = Just (MO_S_Quot F64)
467 translateOp DoubleNegOp = Just (MO_S_Neg F64)
471 translateOp FloatEqOp = Just (MO_Eq F32)
472 translateOp FloatNeOp = Just (MO_Ne F32)
473 translateOp FloatGeOp = Just (MO_S_Ge F32)
474 translateOp FloatLeOp = Just (MO_S_Le F32)
475 translateOp FloatGtOp = Just (MO_S_Gt F32)
476 translateOp FloatLtOp = Just (MO_S_Lt F32)
478 translateOp FloatAddOp = Just (MO_Add F32)
479 translateOp FloatSubOp = Just (MO_Sub F32)
480 translateOp FloatMulOp = Just (MO_Mul F32)
481 translateOp FloatDivOp = Just (MO_S_Quot F32)
482 translateOp FloatNegOp = Just (MO_S_Neg F32)
486 translateOp Int2DoubleOp = Just (MO_S_Conv wordRep F64)
487 translateOp Double2IntOp = Just (MO_S_Conv F64 wordRep)
489 translateOp Int2FloatOp = Just (MO_S_Conv wordRep F32)
490 translateOp Float2IntOp = Just (MO_S_Conv F32 wordRep)
492 translateOp Float2DoubleOp = Just (MO_S_Conv F32 F64)
493 translateOp Double2FloatOp = Just (MO_S_Conv F64 F32)
495 -- Word comparisons masquerading as more exotic things.
497 translateOp SameMutVarOp = Just mo_wordEq
498 translateOp SameMVarOp = Just mo_wordEq
499 translateOp SameMutableArrayOp = Just mo_wordEq
500 translateOp SameMutableByteArrayOp = Just mo_wordEq
501 translateOp SameTVarOp = Just mo_wordEq
502 translateOp EqStablePtrOp = Just mo_wordEq
504 translateOp _ = Nothing
506 -- These primops are implemented by CallishMachOps, because they sometimes
507 -- turn into foreign calls depending on the backend.
509 callishOp DoublePowerOp = Just MO_F64_Pwr
510 callishOp DoubleSinOp = Just MO_F64_Sin
511 callishOp DoubleCosOp = Just MO_F64_Cos
512 callishOp DoubleTanOp = Just MO_F64_Tan
513 callishOp DoubleSinhOp = Just MO_F64_Sinh
514 callishOp DoubleCoshOp = Just MO_F64_Cosh
515 callishOp DoubleTanhOp = Just MO_F64_Tanh
516 callishOp DoubleAsinOp = Just MO_F64_Asin
517 callishOp DoubleAcosOp = Just MO_F64_Acos
518 callishOp DoubleAtanOp = Just MO_F64_Atan
519 callishOp DoubleLogOp = Just MO_F64_Log
520 callishOp DoubleExpOp = Just MO_F64_Exp
521 callishOp DoubleSqrtOp = Just MO_F64_Sqrt
523 callishOp FloatPowerOp = Just MO_F32_Pwr
524 callishOp FloatSinOp = Just MO_F32_Sin
525 callishOp FloatCosOp = Just MO_F32_Cos
526 callishOp FloatTanOp = Just MO_F32_Tan
527 callishOp FloatSinhOp = Just MO_F32_Sinh
528 callishOp FloatCoshOp = Just MO_F32_Cosh
529 callishOp FloatTanhOp = Just MO_F32_Tanh
530 callishOp FloatAsinOp = Just MO_F32_Asin
531 callishOp FloatAcosOp = Just MO_F32_Acos
532 callishOp FloatAtanOp = Just MO_F32_Atan
533 callishOp FloatLogOp = Just MO_F32_Log
534 callishOp FloatExpOp = Just MO_F32_Exp
535 callishOp FloatSqrtOp = Just MO_F32_Sqrt
537 callishOp _ = Nothing
539 ------------------------------------------------------------------------------
540 -- Helpers for translating various minor variants of array indexing.
542 doIndexOffAddrOp maybe_post_read_cast rep [res] [addr,idx]
543 = mkBasicIndexedRead 0 maybe_post_read_cast rep res addr idx
544 doIndexOffAddrOp _ _ _ _
545 = panic "CgPrimOp: doIndexOffAddrOp"
547 doIndexByteArrayOp maybe_post_read_cast rep [res] [addr,idx]
548 = mkBasicIndexedRead arrWordsHdrSize maybe_post_read_cast rep res addr idx
549 doIndexByteArrayOp _ _ _ _
550 = panic "CgPrimOp: doIndexByteArrayOp"
552 doReadPtrArrayOp res addr idx
553 = mkBasicIndexedRead arrPtrsHdrSize Nothing wordRep res addr idx
556 doWriteOffAddrOp maybe_pre_write_cast rep [] [addr,idx,val]
557 = mkBasicIndexedWrite 0 maybe_pre_write_cast rep addr idx val
558 doWriteOffAddrOp _ _ _ _
559 = panic "CgPrimOp: doWriteOffAddrOp"
561 doWriteByteArrayOp maybe_pre_write_cast rep [] [addr,idx,val]
562 = mkBasicIndexedWrite arrWordsHdrSize maybe_pre_write_cast rep addr idx val
563 doWriteByteArrayOp _ _ _ _
564 = panic "CgPrimOp: doWriteByteArrayOp"
566 doWritePtrArrayOp addr idx val
567 = do stmtC (setInfo addr (CmmLit (CmmLabel mkMAP_DIRTY_infoLabel)))
568 mkBasicIndexedWrite arrPtrsHdrSize Nothing wordRep addr idx val
571 mkBasicIndexedRead off Nothing read_rep res base idx
572 = stmtC (CmmAssign (CmmLocal res) (cmmLoadIndexOffExpr off read_rep base idx))
573 mkBasicIndexedRead off (Just cast) read_rep res base idx
574 = stmtC (CmmAssign (CmmLocal res) (CmmMachOp cast [
575 cmmLoadIndexOffExpr off read_rep base idx]))
577 mkBasicIndexedWrite off Nothing write_rep base idx val
578 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) val)
579 mkBasicIndexedWrite off (Just cast) write_rep base idx val
580 = stmtC (CmmStore (cmmIndexOffExpr off write_rep base idx) (CmmMachOp cast [val]))
582 -- ----------------------------------------------------------------------------
585 cmmIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
586 cmmIndexOffExpr off rep base idx
587 = cmmIndexExpr rep (cmmOffsetB base off) idx
589 cmmLoadIndexOffExpr :: ByteOff -> MachRep -> CmmExpr -> CmmExpr -> CmmExpr
590 cmmLoadIndexOffExpr off rep base idx
591 = CmmLoad (cmmIndexOffExpr off rep base idx) rep
593 setInfo :: CmmExpr -> CmmExpr -> CmmStmt
594 setInfo closure_ptr info_ptr = CmmStore closure_ptr info_ptr