Mercurial > projects > ddmd
annotate dmd/codegen/Util.d @ 177:1475fd394c9e
bug fixes
| author | korDen |
|---|---|
| date | Sun, 10 Oct 2010 10:38:55 +0400 |
| parents | af724d3510d7 |
| children | e3afd1303184 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.codegen.Util; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Loc; |
| 73 | 5 import dmd.Id; |
| 0 | 6 import dmd.IRState; |
| 7 import dmd.Type; | |
| 8 import dmd.Array; | |
|
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9 import dmd.Declaration; |
| 0 | 10 import dmd.Dsymbol; |
| 11 import dmd.FuncDeclaration; | |
| 12 import dmd.Identifier; | |
| 13 import dmd.RET; | |
| 14 import dmd.TY; | |
| 15 import dmd.LINK; | |
| 16 import dmd.Expression; | |
|
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17 import dmd.Parameter; |
| 0 | 18 import dmd.STC; |
| 19 import dmd.Global; | |
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20 import dmd.Module; |
| 0 | 21 import dmd.InterfaceDeclaration; |
| 22 import dmd.AggregateDeclaration; | |
| 23 import dmd.AttribDeclaration; | |
| 24 import dmd.TupleDeclaration; | |
| 25 import dmd.StructDeclaration; | |
| 26 import dmd.VarDeclaration; | |
| 27 import dmd.ClassDeclaration; | |
| 28 import dmd.TemplateMixin; | |
| 29 import dmd.TypedefDeclaration; | |
| 30 import dmd.ExpInitializer; | |
| 31 import dmd.TypeFunction; | |
| 32 import dmd.TypeStruct; | |
| 33 import dmd.TypeSArray; | |
| 34 import dmd.TOK; | |
| 35 import dmd.Util; | |
| 36 import dmd.LabelStatement; | |
| 37 import dmd.DsymbolExp; | |
| 38 import dmd.LabelDsymbol; | |
| 39 import dmd.backend.elem; | |
| 40 import dmd.backend.TYPE; | |
| 41 import dmd.backend.Util; | |
| 42 import dmd.backend.Classsym; | |
| 43 import dmd.backend.SC; | |
| 44 import dmd.backend.FL; | |
| 45 import dmd.backend.SFL; | |
| 46 import dmd.backend.STR; | |
| 47 import dmd.backend.TYM; | |
| 48 import dmd.backend.TF; | |
| 49 import dmd.backend.OPER; | |
| 50 import dmd.backend.mTYman; | |
| 51 import dmd.backend.TYFL; | |
| 52 import dmd.backend.mTY; | |
| 53 import dmd.backend.Symbol; | |
| 54 import dmd.backend.Blockx; | |
| 55 import dmd.backend.RTLSYM; | |
| 56 import dmd.backend.block; | |
| 57 import dmd.backend.LIST; | |
| 140 | 58 import dmd.backend.iasm : binary; |
| 0 | 59 |
| 60 import std.string; | |
| 61 import core.stdc.string; | |
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62 import core.stdc.stdlib; |
| 0 | 63 |
| 4 | 64 import core.memory; |
| 2 | 65 |
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66 |
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67 /* If variable var of type typ is a reference |
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68 */ |
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69 version(SARRAYVALUE) |
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70 { |
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71 bool ISREF(Declaration var, Type tb) {return var.isOut() || var.isRef();} |
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72 } |
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73 else |
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74 bool ISREF(Declaration var, Type tb) {return (var.isParameter() && tb.ty == TY.Tsarray) || var.isOut() || var.isRef();} |
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75 |
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76 |
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77 |
| 0 | 78 /************************************ |
| 79 * Call a function. | |
| 80 */ | |
| 174 | 81 elem* callfunc(Loc loc, |
| 0 | 82 IRState* irs, |
| 83 int directcall, // 1: don't do virtual call | |
| 84 Type tret, // return type | |
| 85 elem *ec, // evaluates to function address | |
| 86 Type ectype, // original type of ec | |
| 87 FuncDeclaration fd, // if !=null, this is the function being called | |
| 88 Type t, // TypeDelegate or TypeFunction for this function | |
| 89 elem* ehidden, // if !=null, this is the 'hidden' argument | |
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90 Expressions arguments) |
| 0 | 91 { |
| 92 elem* ep; | |
| 93 elem* e; | |
| 94 elem* ethis = null; | |
| 95 elem* eside = null; | |
| 96 int i; | |
| 97 tym_t ty; | |
| 98 tym_t tyret; | |
| 99 RET retmethod; | |
| 100 int reverse; | |
| 101 TypeFunction tf; | |
| 102 OPER op; | |
| 103 | |
| 104 static if (false) { | |
| 105 printf("callfunc(directcall = %d, tret = '%s', ec = %p, fd = %p)\n", | |
| 106 directcall, tret.toChars(), ec, fd); | |
| 107 printf("ec: "); elem_print(ec); | |
| 108 if (fd) | |
| 109 printf("fd = '%s'\n", fd.toChars()); | |
| 110 } | |
| 111 | |
| 112 t = t.toBasetype(); | |
| 113 if (t.ty == TY.Tdelegate) | |
| 114 { | |
| 115 // A delegate consists of: | |
| 116 // { Object *this; Function *funcptr; } | |
| 117 assert(!fd); | |
| 118 assert(t.nextOf().ty == TY.Tfunction); | |
| 119 tf = cast(TypeFunction)t.nextOf(); | |
| 120 ethis = ec; | |
| 121 ec = el_same(ðis); | |
| 122 ethis = el_una(OPER.OP64_32, TYM.TYnptr, ethis); // get this | |
| 123 ec = array_toPtr(t, ec); // get funcptr | |
| 124 ec = el_una(OPER.OPind, tf.totym(), ec); | |
| 125 } | |
| 126 else | |
| 174 | 127 { |
| 0 | 128 assert(t.ty == TY.Tfunction); |
| 129 tf = cast(TypeFunction)t; | |
| 130 } | |
| 131 | |
| 132 retmethod = tf.retStyle(); | |
| 133 ty = ec.Ety; | |
| 134 if (fd) | |
| 135 ty = fd.toSymbol().Stype.Tty; | |
| 136 reverse = tyrevfunc(ty); | |
| 137 ep = null; | |
| 138 if (arguments) | |
| 139 { | |
| 140 // j=1 if _arguments[] is first argument | |
| 141 int j = (tf.linkage == LINK.LINKd && tf.varargs == 1); | |
| 142 | |
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143 foreach (size_t i, Expression arg; arguments) |
| 174 | 144 { |
| 0 | 145 elem* ea; |
| 146 | |
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147 //writef("\targ[%d]: %s\n", i, arg.toChars()); |
| 0 | 148 |
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149 size_t nparams = Parameter.dim(tf.parameters); |
| 0 | 150 if (i - j < nparams && i >= j) |
| 151 { | |
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152 auto p = Parameter.getNth(tf.parameters, i - j); |
| 0 | 153 |
| 154 if (p.storageClass & (STC.STCout | STC.STCref)) | |
| 155 { | |
| 156 // Convert argument to a pointer, | |
| 157 // use AddrExp.toElem() | |
| 158 Expression ae = arg.addressOf(null); | |
| 159 ea = ae.toElem(irs); | |
| 160 goto L1; | |
| 161 } | |
| 162 } | |
| 163 ea = arg.toElem(irs); | |
| 164 L1: | |
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165 if (tybasic(ea.Ety) == TYM.TYstruct || tybasic(ea.Ety) == TYarray) |
| 0 | 166 { |
| 167 ea = el_una(OPER.OPstrpar, TYM.TYstruct, ea); | |
| 168 ea.Enumbytes = ea.E1.Enumbytes; | |
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169 //assert(ea.Enumbytes); |
| 0 | 170 } |
| 171 if (reverse) | |
| 172 ep = el_param(ep,ea); | |
| 173 else | |
| 174 ep = el_param(ea,ep); | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 if (retmethod == RET.RETstack) | |
| 179 { | |
| 180 if (!ehidden) | |
| 174 | 181 { |
| 0 | 182 // Don't have one, so create one |
| 183 type* tt; | |
| 184 | |
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185 Type tret2 = tf.next; // in dmd tret is shadowed here, so -> tret2 |
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186 if (tret2.toBasetype().ty == Tstruct || |
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187 tret2.toBasetype().ty == Tsarray) |
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188 tt = tret2.toCtype(); |
| 0 | 189 else |
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190 tt = type_fake(tret2.totym()); |
| 0 | 191 |
| 192 Symbol* stmp = symbol_genauto(tt); | |
| 193 ehidden = el_ptr(stmp); | |
| 194 } | |
| 195 if ((global.params.isLinux || global.params.isOSX || global.params.isFreeBSD || global.params.isSolaris) && tf.linkage != LINK.LINKd) { | |
| 196 ; // ehidden goes last on Linux/OSX C++ | |
| 197 } else { | |
| 198 if (ep) | |
| 199 { | |
| 200 static if (false) { // BUG: implement | |
| 201 if (reverse && type_mangle(tfunc) == mTYman.mTYman_cpp) { | |
| 202 ep = el_param(ehidden,ep); | |
| 203 } else { | |
| 204 ep = el_param(ep,ehidden); | |
| 205 } | |
| 206 } else { | |
| 207 ep = el_param(ep,ehidden); | |
| 208 } | |
| 209 } | |
| 210 else | |
| 211 ep = ehidden; | |
| 212 ehidden = null; | |
| 213 } | |
| 214 } | |
| 215 | |
| 216 if (fd && fd.isMember2()) | |
| 217 { | |
| 218 InterfaceDeclaration intd; | |
| 219 Symbol* sfunc; | |
| 220 AggregateDeclaration ad; | |
| 221 | |
| 222 ad = fd.isThis(); | |
| 223 if (ad) | |
| 224 { | |
| 225 ethis = ec; | |
| 226 if (ad.isStructDeclaration() && tybasic(ec.Ety) != TYM.TYnptr) | |
| 227 { | |
| 228 ethis = addressElem(ec, ectype); | |
| 229 } | |
| 230 } | |
| 231 else | |
| 232 { | |
| 233 // Evaluate ec for side effects | |
| 234 eside = ec; | |
| 235 } | |
| 236 sfunc = fd.toSymbol(); | |
| 237 | |
| 238 if (!fd.isVirtual() || | |
| 239 directcall || // BUG: fix | |
| 240 fd.isFinal()) | |
| 241 { | |
| 242 // make static call | |
| 243 ec = el_var(sfunc); | |
| 244 } | |
| 245 else | |
| 246 { | |
| 247 // make virtual call | |
| 248 elem* ev; | |
| 249 uint vindex; | |
| 250 | |
| 251 assert(ethis); | |
| 252 ev = el_same(ðis); | |
| 253 ev = el_una(OPER.OPind, TYM.TYnptr, ev); | |
| 254 vindex = fd.vtblIndex; | |
| 255 | |
| 256 // Build *(ev + vindex * 4) | |
| 257 ec = el_bin(OPER.OPadd, TYM.TYnptr, ev, el_long(TYM.TYint, vindex * 4)); | |
| 258 ec = el_una(OPER.OPind, TYM.TYnptr, ec); | |
| 259 ec = el_una(OPER.OPind, tybasic(sfunc.Stype.Tty), ec); | |
| 260 } | |
| 261 } | |
| 262 else if (fd && fd.isNested()) | |
| 263 { | |
| 264 assert(!ethis); | |
| 265 ethis = getEthis(Loc(0), irs, fd); | |
| 266 } | |
| 267 | |
| 268 ep = el_param(ep, ethis); | |
| 269 if (ehidden) | |
| 270 ep = el_param(ep, ehidden); // if ehidden goes last | |
| 271 | |
| 272 tyret = tret.totym(); | |
| 273 | |
| 274 // Look for intrinsic functions | |
| 275 if (ec.Eoper == OPER.OPvar && (op = intrinsic_oper(ec.EV.sp.Vsym.Sident.ptr)) != OPER.OPMAX) | |
| 276 { | |
| 277 el_free(ec); | |
| 278 if (OTbinary(op)) | |
| 279 { | |
| 280 ep.Eoper = op; | |
| 281 ep.Ety = tyret; | |
| 282 e = ep; | |
| 283 if (op == OPER.OPscale) | |
| 284 { | |
| 285 elem *et = e.E1; | |
| 286 e.E1() = el_una(OPER.OPd_ld, TYM.TYldouble, e.E1); | |
| 287 e.E1() = el_una(OPER.OPs32_d, TYM.TYdouble, e.E2); | |
| 288 e.E2() = et; | |
| 289 } | |
| 290 else if (op == OPER.OPyl2x || op == OPER.OPyl2xp1) | |
| 291 { | |
| 292 elem *et = e.E1; | |
| 293 e.E1() = e.E2; | |
| 294 e.E2() = et; | |
| 295 } | |
| 296 } | |
| 297 else | |
| 298 e = el_una(op,tyret,ep); | |
| 299 } | |
| 300 else if (ep) | |
| 135 | 301 /* Do not do "no side effect" calls if a hidden parameter is passed, |
| 302 * as the return value is stored through the hidden parameter, which | |
| 303 * is a side effect. | |
| 304 */ | |
| 305 e = el_bin((tf.ispure && tf.isnothrow && (retmethod != RET.RETstack)) ? | |
| 306 OPcallns : OPcall, tyret, ec, ep); | |
| 0 | 307 else |
| 135 | 308 e = el_una((tf.ispure && tf.isnothrow && (retmethod != RET.RETstack)) ? |
| 309 OPucallns : OPucall, tyret, ec); | |
| 0 | 310 |
| 311 if (retmethod == RET.RETstack) | |
| 312 { | |
| 313 e.Ety = TYM.TYnptr; | |
| 314 e = el_una(OPER.OPind, tyret, e); | |
| 315 } | |
| 316 | |
| 317 version (DMDV2) { | |
| 318 if (tf.isref) | |
| 319 { | |
| 320 e.Ety = TYM.TYnptr; | |
| 321 e = el_una(OPER.OPind, tyret, e); | |
| 322 } | |
| 323 } | |
| 324 | |
| 325 if (tybasic(tyret) == TYM.TYstruct) | |
| 326 { | |
| 327 e.Enumbytes = cast(uint)tret.size(); | |
| 328 } | |
| 329 | |
| 330 e = el_combine(eside, e); | |
| 331 return e; | |
| 332 } | |
| 333 | |
| 334 /************************************** | |
| 335 * Fake a struct symbol. | |
| 336 */ | |
| 337 | |
| 338 Classsym* fake_classsym(Identifier id) | |
| 174 | 339 { |
| 0 | 340 TYPE* t; |
| 341 Classsym* scc; | |
| 342 | |
| 343 scc = cast(Classsym*)symbol_calloc(toStringz(id.toChars())); | |
| 344 scc.Sclass = SC.SCstruct; | |
| 345 scc.Sstruct = struct_calloc(); | |
| 346 scc.Sstruct.Sstructalign = 8; | |
| 347 //scc.Sstruct.ptrtype = TYM.TYnptr; | |
| 348 scc.Sstruct.Sflags = STR.STRglobal; | |
| 349 | |
| 350 t = type_alloc(TYM.TYstruct); | |
| 351 t.Tflags |= TF.TFsizeunknown | TF.TFforward; | |
| 352 t.Ttag = scc; // structure tag name | |
| 353 assert(t.Tmangle == 0); | |
| 354 t.Tmangle = mTYman.mTYman_d; | |
| 355 t.Tcount++; | |
| 356 scc.Stype = t; | |
| 357 slist_add(scc); | |
| 358 return scc; | |
| 359 } | |
| 360 | |
| 361 /****************************************** | |
| 362 * Return elem that evaluates to the static frame pointer for function fd. | |
| 363 * If fd is a member function, the returned expression will compute the value | |
| 364 * of fd's 'this' variable. | |
| 365 * This routine is critical for implementing nested functions. | |
| 366 */ | |
| 367 | |
| 368 elem* getEthis(Loc loc, IRState* irs, Dsymbol fd) | |
| 369 { | |
| 370 elem* ethis; | |
| 371 FuncDeclaration thisfd = irs.getFunc(); | |
| 372 Dsymbol fdparent = fd.toParent2(); | |
| 373 | |
| 374 //printf("getEthis(thisfd = '%s', fd = '%s', fdparent = '%s')\n", thisfd.toChars(), fd.toChars(), fdparent.toChars()); | |
| 73 | 375 if (fdparent == thisfd || |
| 376 /* These two are compiler generated functions for the in and out contracts, | |
| 377 * and are called from an overriding function, not just the one they're | |
| 378 * nested inside, so this hack is so they'll pass | |
| 379 */ | |
| 380 fd.ident == Id.require || fd.ident == Id.ensure) | |
| 174 | 381 { |
| 0 | 382 /* Going down one nesting level, i.e. we're calling |
| 383 * a nested function from its enclosing function. | |
| 384 */ | |
| 385 ///version (DMDV2) { | |
| 386 if (irs.sclosure) | |
| 387 ethis = el_var(irs.sclosure); | |
| 388 else | |
| 389 ///} | |
| 390 if (irs.sthis) | |
| 174 | 391 { |
| 0 | 392 // We have a 'this' pointer for the current function |
| 393 ethis = el_var(irs.sthis); | |
| 394 | |
| 395 /* If no variables in the current function's frame are | |
| 396 * referenced by nested functions, then we can 'skip' | |
| 397 * adding this frame into the linked list of stack | |
| 398 * frames. | |
| 399 */ | |
| 400 version (DMDV2) { | |
| 401 bool cond = (thisfd.closureVars.dim != 0); | |
| 402 } else { | |
| 403 bool cond = thisfd.nestedFrameRef; | |
| 404 } | |
| 405 if (cond) | |
| 174 | 406 { |
| 0 | 407 /* Local variables are referenced, can't skip. |
| 408 * Address of 'this' gives the 'this' for the nested | |
| 409 * function | |
| 410 */ | |
| 411 ethis = el_una(OPER.OPaddr, TYM.TYnptr, ethis); | |
| 412 } | |
| 413 } | |
| 414 else | |
| 174 | 415 { |
| 0 | 416 /* No 'this' pointer for current function, |
| 417 * use null if no references to the current function's frame | |
| 418 */ | |
| 419 ethis = el_long(TYM.TYnptr, 0); | |
| 420 version (DMDV2) { | |
| 421 bool cond = (thisfd.closureVars.dim != 0); | |
| 422 } else { | |
| 423 bool cond = thisfd.nestedFrameRef; | |
| 424 } | |
| 425 if (cond) | |
| 174 | 426 { |
| 0 | 427 /* OPframeptr is an operator that gets the frame pointer |
| 428 * for the current function, i.e. for the x86 it gets | |
| 429 * the value of EBP | |
| 430 */ | |
| 431 ethis.Eoper = OPER.OPframeptr; | |
| 432 } | |
| 433 } | |
| 174 | 434 |
| 73 | 435 //if (fdparent != thisfd) ethis = el_bin(OPadd, TYnptr, ethis, el_long(TYint, 0x18)); |
| 0 | 436 } |
| 437 else | |
| 438 { | |
| 439 if (!irs.sthis) // if no frame pointer for this function | |
| 440 { | |
| 441 fd.error(loc, "is a nested function and cannot be accessed from %s", irs.getFunc().toChars()); | |
| 442 ethis = el_long(TYM.TYnptr, 0); // error recovery | |
| 443 } | |
| 444 else | |
| 445 { | |
| 446 ethis = el_var(irs.sthis); | |
| 447 Dsymbol s = thisfd; | |
| 448 while (fd != s) | |
| 174 | 449 { |
| 0 | 450 /* Go up a nesting level, i.e. we need to find the 'this' |
| 451 * of an enclosing function. | |
| 452 * Our 'enclosing function' may also be an inner class. | |
| 453 */ | |
| 454 | |
| 455 //printf("\ts = '%s'\n", s.toChars()); | |
| 456 thisfd = s.isFuncDeclaration(); | |
| 457 if (thisfd) | |
| 174 | 458 { |
| 0 | 459 /* Enclosing function is a function. |
| 460 */ | |
| 461 if (fdparent == s.toParent2()) | |
| 462 break; | |
| 463 | |
| 464 if (thisfd.isNested()) | |
| 465 { | |
| 466 FuncDeclaration p = s.toParent2().isFuncDeclaration(); | |
| 467 version (DMDV2) { | |
| 468 bool cond = !p || p.closureVars.dim; | |
| 469 } else { | |
| 470 bool cond = !p || p.nestedFrameRef; | |
| 471 } | |
| 472 if (cond) { | |
| 473 ethis = el_una(OPER.OPind, TYM.TYnptr, ethis); | |
| 474 } | |
| 475 } | |
| 476 else if (thisfd.vthis) | |
| 477 { | |
| 478 ; | |
| 479 } | |
| 480 else | |
| 481 { | |
| 482 // Error should have been caught by front end | |
| 483 assert(0); | |
| 484 } | |
| 485 } | |
| 486 else | |
| 174 | 487 { |
| 0 | 488 /* Enclosed by an aggregate. That means the current |
| 489 * function must be a member function of that aggregate. | |
| 490 */ | |
| 491 ClassDeclaration cd; | |
| 492 StructDeclaration sd; | |
| 493 AggregateDeclaration ad = s.isAggregateDeclaration(); | |
| 494 | |
| 495 if (!ad) | |
| 496 goto Lnoframe; | |
| 497 | |
| 498 cd = s.isClassDeclaration(); | |
| 499 | |
| 500 if (cd && fd.isClassDeclaration() && fd.isClassDeclaration().isBaseOf(cd, null)) | |
| 501 break; | |
| 502 | |
| 503 sd = s.isStructDeclaration(); | |
| 504 | |
| 505 if (fd == sd) | |
| 506 break; | |
| 507 | |
| 508 if (!ad.isNested() || !ad.vthis) | |
| 509 { | |
| 510 Lnoframe: | |
| 511 irs.getFunc().error(loc, "cannot get frame pointer to %s", fd.toChars()); | |
| 512 return el_long(TYM.TYnptr, 0); // error recovery | |
| 513 } | |
| 514 | |
| 515 ethis = el_bin(OPER.OPadd, TYM.TYnptr, ethis, el_long(TYM.TYint, ad.vthis.offset)); | |
| 516 ethis = el_una(OPER.OPind, TYM.TYnptr, ethis); | |
| 517 | |
| 518 if (fdparent == s.toParent2()) | |
| 519 break; | |
| 520 | |
| 521 if (auto fdd = s.toParent2().isFuncDeclaration()) | |
| 522 { | |
| 523 /* Remember that frames for functions that have no | |
| 524 * nested references are skipped in the linked list | |
| 525 * of frames. | |
| 526 */ | |
| 527 version (DMDV2) { | |
| 528 bool cond = (fdd.closureVars.dim != 0); | |
| 529 } else { | |
| 174 | 530 bool cond = fdd.nestedFrameRef; |
| 0 | 531 } |
| 532 if (cond) { | |
| 533 ethis = el_una(OPER.OPind, TYM.TYnptr, ethis); | |
| 534 } | |
| 535 break; | |
| 536 } | |
| 537 } | |
| 538 s = s.toParent2(); | |
| 539 assert(s); | |
| 540 } | |
| 541 } | |
| 542 } | |
| 543 | |
| 544 static if (false) { | |
| 545 printf("ethis:\n"); | |
| 546 elem_print(ethis); | |
| 547 printf("\n"); | |
| 548 } | |
| 549 | |
| 550 return ethis; | |
| 551 } | |
| 552 | |
| 553 /***************************************** | |
| 554 * Convert array to a pointer to the data. | |
| 555 */ | |
| 556 | |
| 557 elem* array_toPtr(Type t, elem* e) | |
| 558 { | |
| 559 //printf("array_toPtr()\n"); | |
| 560 //elem_print(e); | |
| 561 t = t.toBasetype(); | |
| 562 switch (t.ty) | |
| 563 { | |
| 564 case TY.Tpointer: | |
| 565 break; | |
| 566 | |
| 567 case TY.Tarray: | |
| 568 case TY.Tdelegate: | |
| 569 if (e.Eoper == OPER.OPcomma) | |
| 570 { | |
| 571 e.Ety = TYM.TYnptr; | |
| 572 e.E2() = array_toPtr(t, e.E2); | |
| 573 } | |
| 574 else if (e.Eoper == OPER.OPpair) | |
| 575 { | |
| 576 e.Eoper = OPER.OPcomma; | |
| 577 e.Ety = TYM.TYnptr; | |
| 578 } | |
| 579 else | |
| 580 { | |
| 581 static if (true) { | |
| 582 e = el_una(OPER.OPmsw, TYM.TYnptr, e); | |
| 583 } else { | |
| 584 e = el_una(OPER.OPaddr, TYM.TYnptr, e); | |
| 585 e = el_bin(OPER.OPadd, TYM.TYnptr, e, el_long(TYM.TYint, 4)); | |
| 586 e = el_una(OPER.OPind, TYM.TYnptr, e); | |
| 587 } | |
| 588 } | |
| 589 break; | |
| 590 | |
| 591 case TY.Tsarray: | |
| 592 e = el_una(OPER.OPaddr, TYM.TYnptr, e); | |
| 593 break; | |
| 594 | |
| 595 default: | |
| 596 ///t.print(); | |
| 597 assert(0); | |
| 598 } | |
| 599 return e; | |
| 600 } | |
| 601 | |
| 602 /******************************************* | |
| 603 * Take address of an elem. | |
| 604 */ | |
| 605 | |
| 606 elem* addressElem(elem* e, Type t) | |
| 607 { | |
| 608 elem** pe; | |
| 609 | |
| 610 //printf("addressElem()\n"); | |
| 611 | |
| 612 for (pe = &e; (*pe).Eoper == OPER.OPcomma; pe = &(*pe).E2()) { | |
| 613 ; | |
| 614 } | |
| 615 | |
| 616 if ((*pe).Eoper != OPER.OPvar && (*pe).Eoper != OPER.OPind) | |
| 617 { | |
| 618 Symbol* stmp; | |
| 619 elem* eeq; | |
| 620 elem* ee = *pe; | |
| 621 type* tx; | |
| 622 | |
| 623 // Convert to ((tmp=ee),tmp) | |
| 624 TY ty; | |
| 625 if (t && ((ty = t.toBasetype().ty) == TY.Tstruct || ty == TY.Tsarray)) | |
| 626 tx = t.toCtype(); | |
| 627 else | |
| 628 tx = type_fake(ee.Ety); | |
| 629 stmp = symbol_genauto(tx); | |
| 630 eeq = el_bin(OPER.OPeq,ee.Ety,el_var(stmp),ee); | |
| 631 | |
| 632 if (tybasic(ee.Ety) == TYM.TYstruct) | |
| 633 { | |
| 634 eeq.Eoper = OPER.OPstreq; | |
| 635 eeq.Enumbytes = ee.Enumbytes; | |
| 636 } | |
| 637 else if (tybasic(ee.Ety) == TYM.TYarray) | |
| 638 { | |
| 639 eeq.Eoper = OPER.OPstreq; | |
| 640 eeq.Ety = TYM.TYstruct; | |
| 641 eeq.Ejty = cast(ubyte)eeq.Ety; | |
| 642 eeq.Enumbytes = cast(uint)t.size(); | |
| 643 } | |
| 644 *pe = el_bin(OPER.OPcomma, ee.Ety, eeq, el_var(stmp)); | |
| 645 } | |
| 646 | |
| 647 e = el_una(OPER.OPaddr, TYM.TYnptr, e); | |
| 648 return e; | |
| 649 } | |
| 650 | |
| 651 /******************************************* | |
| 652 * Convert intrinsic function to operator. | |
| 653 * Returns that operator, -1 if not an intrinsic function. | |
| 654 */ | |
| 655 | |
| 140 | 656 //extern (C++) extern int intrinsic_op(char* name); |
| 657 | |
| 0 | 658 OPER intrinsic_oper(const(char)* name) |
| 659 { | |
| 140 | 660 version(DMDV1) |
| 174 | 661 enum const(char) *namearray[] = |
| 140 | 662 [ |
| 663 "4math3cosFeZe", | |
| 664 "4math3sinFeZe", | |
| 665 "4math4fabsFeZe", | |
| 666 "4math4rintFeZe", | |
| 667 "4math4sqrtFdZd", | |
| 668 "4math4sqrtFeZe", | |
| 669 "4math4sqrtFfZf", | |
| 670 "4math4yl2xFeeZe", | |
| 671 "4math5ldexpFeiZe", | |
| 672 "4math6rndtolFeZl", | |
| 673 "4math6yl2xp1FeeZe", | |
| 674 | |
| 675 "9intrinsic2btFPkkZi", | |
| 676 "9intrinsic3bsfFkZi", | |
| 677 "9intrinsic3bsrFkZi", | |
| 678 "9intrinsic3btcFPkkZi", | |
| 679 "9intrinsic3btrFPkkZi", | |
| 680 "9intrinsic3btsFPkkZi", | |
| 681 "9intrinsic3inpFkZh", | |
| 682 "9intrinsic4inplFkZk", | |
| 683 "9intrinsic4inpwFkZt", | |
| 684 "9intrinsic4outpFkhZh", | |
| 685 "9intrinsic5bswapFkZk", | |
| 686 "9intrinsic5outplFkkZk", | |
| 687 "9intrinsic5outpwFktZt", | |
| 688 ]; | |
| 689 else | |
| 174 | 690 enum const(char) *namearray[] = |
| 140 | 691 [ |
| 692 /* The names are mangled differently because of the pure and | |
| 693 * nothrow attributes. | |
| 694 */ | |
| 695 "4math3cosFNaNbNfeZe", | |
| 696 "4math3sinFNaNbNfeZe", | |
| 697 "4math4fabsFNaNbNfeZe", | |
| 698 "4math4rintFNaNbNfeZe", | |
| 699 "4math4sqrtFNaNbNfdZd", | |
| 700 "4math4sqrtFNaNbNfeZe", | |
| 701 "4math4sqrtFNaNbNffZf", | |
| 702 "4math4yl2xFNaNbNfeeZe", | |
| 703 "4math5ldexpFNaNbNfeiZe", | |
| 704 "4math6rndtolFNaNbNfeZl", | |
| 705 "4math6yl2xp1FNaNbNfeeZe", | |
| 706 | |
| 707 "9intrinsic2btFNaNbxPkkZi", | |
| 708 "9intrinsic3bsfFNaNbkZi", | |
| 709 "9intrinsic3bsrFNaNbkZi", | |
| 710 "9intrinsic3btcFNbPkkZi", | |
| 711 "9intrinsic3btrFNbPkkZi", | |
| 712 "9intrinsic3btsFNbPkkZi", | |
| 713 "9intrinsic3inpFNbkZh", | |
| 714 "9intrinsic4inplFNbkZk", | |
| 715 "9intrinsic4inpwFNbkZt", | |
| 716 "9intrinsic4outpFNbkhZh", | |
| 717 "9intrinsic5bswapFNaNbkZk", | |
| 718 "9intrinsic5outplFNbkkZk", | |
| 719 "9intrinsic5outpwFNbktZt", | |
| 720 ]; | |
| 721 | |
| 174 | 722 enum OPER ioptab[] = |
| 140 | 723 [ |
| 724 OPcos, | |
| 725 OPsin, | |
| 726 OPabs, | |
| 727 OPrint, | |
| 728 OPsqrt, | |
| 729 OPsqrt, | |
| 730 OPsqrt, | |
| 731 OPyl2x, | |
| 732 OPscale, | |
| 733 OPrndtol, | |
| 734 OPyl2xp1, | |
| 735 | |
| 736 OPbt, | |
| 737 OPbsf, | |
| 738 OPbsr, | |
| 739 OPbtc, | |
| 740 OPbtr, | |
| 741 OPbts, | |
| 742 OPinp, | |
| 743 OPinp, | |
| 744 OPinp, | |
| 745 OPoutp, | |
| 746 OPbswap, | |
| 747 OPoutp, | |
| 748 OPoutp, | |
| 749 ]; | |
| 750 | |
| 174 | 751 debug |
| 140 | 752 { |
| 753 assert(namearray.length == ioptab.length); | |
| 754 // assume sorted namearray | |
| 755 for (int i = 0; i < namearray.length - 1; i++) | |
| 756 { | |
| 757 if (strcmp(namearray[i], namearray[i + 1]) >= 0) | |
| 758 { | |
| 759 printf("namearray[%d] = '%s'\n", i, namearray[i]); | |
| 760 assert(0); | |
| 761 } | |
| 762 } | |
| 763 } | |
| 764 | |
| 765 size_t length = strlen(name); | |
| 766 if (length < 11 || !(name[7] == 'm' || name[7] == 'i') || name[0..6] != "_D3std") | |
| 767 return OPMAX; | |
| 768 | |
| 769 int p = binary(name + 6, namearray.ptr, namearray.length); | |
| 770 if(p == -1) | |
| 771 return OPMAX; | |
| 772 return ioptab[p]; | |
| 0 | 773 } |
| 774 | |
| 775 /************************************** | |
| 776 */ | |
| 777 | |
| 778 elem* Dsymbol_toElem(Dsymbol s, IRState *irs) | |
| 779 { | |
| 780 elem *e = null; | |
| 781 Symbol* sp; | |
| 782 AttribDeclaration ad; | |
| 783 VarDeclaration vd; | |
| 784 ClassDeclaration cd; | |
| 785 StructDeclaration sd; | |
| 786 FuncDeclaration fd; | |
| 787 TemplateMixin tm; | |
| 788 TupleDeclaration td; | |
| 789 TypedefDeclaration tyd; | |
| 790 | |
| 791 //printf("Dsymbol_toElem() %s\n", s.toChars()); | |
| 792 ad = s.isAttribDeclaration(); | |
| 793 if (ad) | |
| 794 { | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
795 auto decl = ad.include(null, null); |
| 0 | 796 if (decl && decl.dim) |
| 797 { | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
798 foreach(s; decl) |
| 0 | 799 e = el_combine(e, Dsymbol_toElem(s, irs)); |
| 800 } | |
| 801 } | |
| 802 else if ((vd = s.isVarDeclaration()) !is null) | |
| 803 { | |
| 804 s = s.toAlias(); | |
| 805 if (s != vd) | |
| 806 return Dsymbol_toElem(s, irs); | |
| 807 if (vd.isStatic() || vd.storage_class & (STC.STCextern | STC.STCtls | STC.STCgshared)) | |
| 808 vd.toObjFile(0); | |
| 809 else | |
| 810 { | |
| 811 sp = s.toSymbol(); | |
| 812 symbol_add(sp); | |
| 813 //printf("\tadding symbol '%s'\n", sp.Sident); | |
| 814 if (vd.init) | |
| 815 { | |
| 816 ExpInitializer ie = vd.init.isExpInitializer(); | |
| 817 if (ie) { | |
| 818 e = ie.exp.toElem(irs); | |
| 819 } | |
| 820 } | |
| 821 } | |
| 822 } | |
| 823 else if ((cd = s.isClassDeclaration()) !is null) | |
| 824 { | |
| 825 irs.deferToObj.push(cast(void*)s); | |
| 826 } | |
| 827 else if ((sd = s.isStructDeclaration()) !is null) | |
| 828 { | |
| 829 irs.deferToObj.push(cast(void*)sd); | |
| 830 } | |
| 831 else if ((fd = s.isFuncDeclaration()) !is null) | |
| 832 { | |
| 833 //printf("function %s\n", fd.toChars()); | |
| 834 irs.deferToObj.push(cast(void*)fd); | |
| 835 } | |
| 836 else if ((tm = s.isTemplateMixin()) !is null) | |
| 837 { | |
| 838 //printf("%s\n", tm.toChars()); | |
| 839 if (tm.members) | |
| 840 { | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
841 foreach(Dsymbol sm; tm.members) |
| 0 | 842 e = el_combine(e, Dsymbol_toElem(sm, irs)); |
| 843 } | |
| 844 } | |
| 845 else if ((td = s.isTupleDeclaration()) !is null) | |
| 846 { | |
| 847 for (size_t i = 0; i < td.objects.dim; i++) | |
| 174 | 848 { |
|
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More cleanup for arrays
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
108
diff
changeset
|
849 auto o = td.objects[i]; |
| 0 | 850 ///if (o.dyncast() == DYNCAST_EXPRESSION) |
|
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More cleanup for arrays
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
108
diff
changeset
|
851 if (auto eo = cast(Expression)o) |
| 174 | 852 { |
| 0 | 853 if (eo.op == TOK.TOKdsymbol) |
| 174 | 854 { |
|
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
108
diff
changeset
|
855 auto se = cast(DsymbolExp)eo; |
| 0 | 856 e = el_combine(e, Dsymbol_toElem(se.s, irs)); |
| 857 } | |
| 858 } | |
| 859 } | |
| 860 } | |
| 861 else if ((tyd = s.isTypedefDeclaration()) !is null) | |
| 862 { | |
| 863 irs.deferToObj.push(cast(void*)tyd); | |
| 864 } | |
| 865 | |
| 866 return e; | |
| 867 } | |
| 868 | |
| 869 /************************************** | |
| 870 * Given an expression e that is an array, | |
| 871 * determine and set the 'length' variable. | |
| 872 * Input: | |
| 873 * lengthVar Symbol of 'length' variable | |
| 874 * &e expression that is the array | |
| 875 * t1 Type of the array | |
| 876 * Output: | |
| 877 * e is rewritten to avoid side effects | |
| 878 * Returns: | |
| 879 * expression that initializes 'length' | |
| 880 */ | |
| 881 | |
| 882 elem* resolveLengthVar(VarDeclaration lengthVar, elem** pe, Type t1) | |
| 883 { | |
| 884 //printf("resolveLengthVar()\n"); | |
| 885 elem* einit = null; | |
| 886 | |
| 887 if (lengthVar && !(lengthVar.storage_class & STC.STCconst)) | |
| 174 | 888 { |
| 0 | 889 elem* elength; |
| 890 Symbol* slength; | |
| 891 | |
| 892 if (t1.ty == TY.Tsarray) | |
| 174 | 893 { |
| 0 | 894 TypeSArray tsa = cast(TypeSArray)t1; |
| 895 long length = tsa.dim.toInteger(); | |
| 896 | |
| 897 elength = el_long(TYM.TYuint, length); | |
| 898 goto L3; | |
| 899 } | |
| 900 else if (t1.ty == TY.Tarray) | |
| 901 { | |
| 902 elength = *pe; | |
| 903 *pe = el_same(&elength); | |
| 140 | 904 elength = el_una(OP64_32, TYM.TYuint, elength); |
| 0 | 905 |
| 906 L3: | |
| 907 slength = lengthVar.toSymbol(); | |
| 908 //symbol_add(slength); | |
| 909 | |
| 140 | 910 einit = el_bin(OPeq, TYM.TYuint, el_var(slength), elength); |
| 0 | 911 } |
| 912 } | |
| 913 return einit; | |
| 914 } | |
| 915 | |
| 916 /******************************************* | |
| 917 * Set an array pointed to by eptr to evalue: | |
| 918 * eptr[0..edim] = evalue; | |
| 919 * Input: | |
| 920 * eptr where to write the data to | |
| 921 * evalue value to write | |
| 922 * edim number of times to write evalue to eptr[] | |
| 923 * tb type of evalue | |
| 924 */ | |
| 925 elem* setArray(elem* eptr, elem* edim, Type tb, elem* evalue, IRState* irs, int op) | |
| 174 | 926 { |
| 0 | 927 int r; |
| 928 elem* e; | |
| 929 int sz = cast(int)tb.size(); | |
| 930 | |
| 931 if (tb.ty == TY.Tfloat80 || tb.ty == TY.Timaginary80) | |
| 932 r = RTLSYM.RTLSYM_MEMSET80; | |
| 933 else if (tb.ty == TY.Tcomplex80) | |
| 934 r = RTLSYM.RTLSYM_MEMSET160; | |
| 935 else if (tb.ty == TY.Tcomplex64) | |
| 936 r = RTLSYM.RTLSYM_MEMSET128; | |
| 937 else | |
| 938 { | |
| 939 switch (sz) | |
| 940 { | |
| 941 case 1: r = RTLSYM.RTLSYM_MEMSET8; break; | |
| 942 case 2: r = RTLSYM.RTLSYM_MEMSET16; break; | |
| 943 case 4: r = RTLSYM.RTLSYM_MEMSET32; break; | |
| 944 case 8: r = RTLSYM.RTLSYM_MEMSET64; break; | |
| 945 default: r = RTLSYM.RTLSYM_MEMSETN; break; | |
| 946 } | |
| 947 | |
| 948 /* Determine if we need to do postblit | |
| 949 */ | |
| 950 if (op != TOK.TOKblit) | |
| 951 { | |
| 952 StructDeclaration sd = needsPostblit(tb); | |
| 953 if (sd) | |
| 174 | 954 { |
| 0 | 955 /* Need to do postblit. |
| 956 * void *_d_arraysetassign(void *p, void *value, int dim, TypeInfo ti); | |
| 957 */ | |
| 958 r = (op == TOK.TOKconstruct) ? RTLSYM.RTLSYM_ARRAYSETCTOR : RTLSYM.RTLSYM_ARRAYSETASSIGN; | |
| 959 evalue = el_una(OPER.OPaddr, TYM.TYnptr, evalue); | |
| 960 Expression ti = tb.getTypeInfo(null); | |
| 961 elem* eti = ti.toElem(irs); | |
| 962 e = el_params(eti, edim, evalue, eptr, null); | |
| 963 e = el_bin(OPER.OPcall, TYM.TYnptr, el_var(rtlsym[r]), e); | |
| 964 return e; | |
| 965 } | |
| 966 } | |
| 967 | |
| 968 if (r == RTLSYM.RTLSYM_MEMSETN) | |
| 969 { | |
| 970 // void *_memsetn(void *p, void *value, int dim, int sizelem) | |
| 971 evalue = el_una(OPER.OPaddr, TYM.TYnptr, evalue); | |
| 972 elem *esz = el_long(TYM.TYint, sz); | |
| 973 e = el_params(esz, edim, evalue, eptr, null); | |
| 974 e = el_bin(OPER.OPcall, TYM.TYnptr, el_var(rtlsym[r]), e); | |
| 975 return e; | |
| 976 } | |
| 977 } | |
| 978 if (sz > 1 && sz <= 8 && evalue.Eoper == OPER.OPconst && el_allbits(evalue, 0)) | |
| 979 { | |
| 980 r = RTLSYM.RTLSYM_MEMSET8; | |
| 981 edim = el_bin(OPER.OPmul, TYM.TYuint, edim, el_long(TYM.TYuint, sz)); | |
| 982 } | |
| 983 | |
|
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Trass3r
parents:
84
diff
changeset
|
984 if (tybasic(evalue.Ety) == TYM.TYstruct || tybasic(evalue.Ety) == TYarray) |
| 0 | 985 { |
| 986 evalue = el_una(OPER.OPstrpar, TYM.TYstruct, evalue); | |
| 987 evalue.Enumbytes = evalue.E1.Enumbytes; | |
| 988 assert(evalue.Enumbytes); | |
| 989 } | |
| 990 | |
| 991 // Be careful about parameter side effect ordering | |
| 992 if (r == RTLSYM.RTLSYM_MEMSET8) | |
| 993 { | |
| 994 e = el_param(edim, evalue); | |
| 995 e = el_bin(OPER.OPmemset, TYM.TYnptr, eptr, e); | |
| 996 } | |
| 997 else | |
| 998 { | |
| 999 e = el_params(edim, evalue, eptr, null); | |
| 1000 e = el_bin(OPER.OPcall, TYM.TYnptr, el_var(rtlsym[r]), e); | |
| 1001 } | |
| 1002 return e; | |
| 1003 } | |
| 1004 | |
| 1005 /************************* | |
| 1006 * Initialize the hidden aggregate member, vthis, with | |
| 1007 * the context pointer. | |
| 1008 * Returns: | |
| 1009 * *(ey + ad.vthis.offset) = this; | |
| 1010 */ | |
| 1011 version (DMDV2) { | |
| 1012 elem* setEthis(Loc loc, IRState* irs, elem* ey, AggregateDeclaration ad) | |
| 1013 { | |
| 1014 elem* ethis; | |
| 1015 FuncDeclaration thisfd = irs.getFunc(); | |
| 1016 int offset = 0; | |
| 1017 Dsymbol cdp = ad.toParent2(); // class/func we're nested in | |
| 1018 | |
| 1019 //printf("setEthis(ad = %s, cdp = %s, thisfd = %s)\n", ad.toChars(), cdp.toChars(), thisfd.toChars()); | |
| 1020 | |
| 1021 if (cdp is thisfd) | |
| 174 | 1022 { |
| 0 | 1023 /* Class we're new'ing is a local class in this function: |
| 1024 * void thisfd() { class ad { } } | |
| 1025 */ | |
| 1026 if (irs.sclosure) | |
| 1027 ethis = el_var(irs.sclosure); | |
| 1028 else if (irs.sthis) | |
| 1029 { | |
| 1030 /// version (DMDV2) { | |
| 1031 if (thisfd.closureVars.dim) | |
| 1032 /// } else { | |
| 1033 /// if (thisfd.nestedFrameRef) | |
| 1034 /// } | |
| 1035 { | |
| 1036 ethis = el_ptr(irs.sthis); | |
| 1037 } | |
| 1038 else | |
| 1039 ethis = el_var(irs.sthis); | |
| 1040 } | |
| 1041 else | |
| 1042 { | |
| 1043 ethis = el_long(TYM.TYnptr, 0); | |
| 1044 /// version (DMDV2) { | |
| 1045 if (thisfd.closureVars.dim) | |
| 1046 /// } else { | |
| 1047 /// if (thisfd.nestedFrameRef) | |
| 1048 /// } | |
| 1049 { | |
| 1050 ethis.Eoper = OPER.OPframeptr; | |
| 1051 } | |
| 1052 } | |
| 1053 } | |
| 1054 else if (thisfd.vthis && ( | |
| 1055 cdp == thisfd.toParent2() || ( | |
| 1056 cdp.isClassDeclaration() && cdp.isClassDeclaration().isBaseOf(thisfd.toParent2().isClassDeclaration(), &offset) | |
| 1057 ) | |
| 1058 ) | |
| 1059 ) | |
| 174 | 1060 { |
| 0 | 1061 /* Class we're new'ing is at the same level as thisfd |
| 1062 */ | |
| 1063 assert(offset == 0); // BUG: should handle this case | |
| 1064 ethis = el_var(irs.sthis); | |
| 1065 } | |
| 1066 else | |
| 1067 { | |
| 1068 ethis = getEthis(loc, irs, ad.toParent2()); | |
| 1069 ethis = el_una(OPER.OPaddr, TYM.TYnptr, ethis); | |
| 1070 } | |
| 1071 | |
| 1072 ey = el_bin(OPER.OPadd, TYM.TYnptr, ey, el_long(TYM.TYint, ad.vthis.offset)); | |
| 1073 ey = el_una(OPER.OPind, TYM.TYnptr, ey); | |
| 1074 ey = el_bin(OPER.OPeq, TYM.TYnptr, ey, ethis); | |
| 1075 | |
| 1076 return ey; | |
| 1077 } | |
| 1078 } | |
| 1079 | |
| 1080 /******************************************** | |
| 1081 * Determine if t is an array of structs that need a postblit. | |
| 1082 */ | |
| 1083 StructDeclaration needsPostblit(Type t) | |
| 1084 { | |
| 1085 t = t.toBasetype(); | |
| 1086 | |
| 1087 while (t.ty == TY.Tsarray) | |
| 1088 t = t.nextOf().toBasetype(); | |
| 1089 | |
| 1090 if (t.ty == TY.Tstruct) | |
| 174 | 1091 { |
| 0 | 1092 StructDeclaration sd = (cast(TypeStruct)t).sym; |
| 1093 if (sd.postblit) | |
| 1094 return sd; | |
| 1095 } | |
| 1096 | |
| 1097 return null; | |
| 1098 } | |
| 1099 | |
| 1100 /***************************************** | |
| 1101 * Convert array to a dynamic array. | |
| 1102 */ | |
| 1103 | |
| 1104 elem* array_toDarray(Type t, elem* e) | |
| 1105 { | |
| 1106 uint dim; | |
| 1107 elem* ef = null; | |
| 1108 elem* ex; | |
| 1109 | |
| 1110 //printf("array_toDarray(t = %s)\n", t.toChars()); | |
| 1111 //elem_print(e); | |
| 1112 t = t.toBasetype(); | |
| 1113 switch (t.ty) | |
| 1114 { | |
| 1115 case TY.Tarray: | |
| 1116 break; | |
| 1117 | |
| 1118 case TY.Tsarray: | |
|
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1119 e = addressElem(e, t); |
| 0 | 1120 dim = cast(uint)(cast(TypeSArray)t).dim.toInteger(); |
| 1121 e = el_pair(TYM.TYullong, el_long(TYM.TYint, dim), e); | |
| 1122 break; | |
| 1123 | |
| 1124 default: | |
| 1125 L1: | |
| 1126 switch (e.Eoper) | |
| 1127 { | |
| 1128 case OPER.OPconst: | |
| 1129 { | |
| 1130 size_t len = tysize[tybasic(e.Ety)]; | |
| 1131 elem* es = el_calloc(); | |
| 1132 es.Eoper = OPER.OPstring; | |
| 1133 | |
| 1134 // Match MEM_PH_FREE for OPstring in ztc\el.c | |
| 177 | 1135 es.EV.ss.Vstring = cast(char*)malloc(len); /// ! |
| 0 | 1136 memcpy(es.EV.ss.Vstring, &e.EV, len); |
| 1137 | |
| 1138 es.EV.ss.Vstrlen = len; | |
| 1139 es.Ety = TYM.TYnptr; | |
| 1140 e = es; | |
| 1141 break; | |
| 1142 } | |
| 1143 | |
| 1144 case OPER.OPvar: | |
| 1145 e = el_una(OPER.OPaddr, TYM.TYnptr, e); | |
| 1146 break; | |
| 1147 | |
| 1148 case OPER.OPcomma: | |
| 1149 ef = el_combine(ef, e.E1); | |
| 1150 ex = e; | |
| 1151 e = e.E2; | |
| 1152 ex.E1() = null; | |
| 1153 ex.E2() = null; | |
| 1154 el_free(ex); | |
| 1155 goto L1; | |
| 1156 | |
| 1157 case OPER.OPind: | |
| 1158 ex = e; | |
| 1159 e = e.E1; | |
| 1160 ex.E1() = null; | |
| 1161 ex.E2() = null; | |
| 1162 el_free(ex); | |
| 1163 break; | |
| 1164 | |
| 1165 default: | |
| 1166 { | |
| 1167 // Copy expression to a variable and take the | |
| 1168 // address of that variable. | |
| 1169 Symbol* stmp; | |
| 1170 tym_t ty = tybasic(e.Ety); | |
| 1171 | |
| 1172 if (ty == TYM.TYstruct) | |
| 1173 { | |
| 1174 if (e.Enumbytes == 4) | |
| 1175 ty = TYM.TYint; | |
| 1176 else if (e.Enumbytes == 8) | |
| 1177 ty = TYM.TYllong; | |
| 1178 } | |
| 1179 e.Ety = ty; | |
| 1180 stmp = symbol_genauto(type_fake(ty)); | |
| 1181 e = el_bin(OPER.OPeq, e.Ety, el_var(stmp), e); | |
| 1182 e = el_bin(OPER.OPcomma, TYM.TYnptr, e, el_una(OPER.OPaddr, TYM.TYnptr, el_var(stmp))); | |
| 1183 break; | |
| 1184 } | |
| 1185 } | |
| 1186 dim = 1; | |
| 1187 e = el_pair(TYM.TYullong, el_long(TYM.TYint, dim), e); | |
| 1188 break; | |
| 1189 } | |
| 1190 | |
| 1191 return el_combine(ef, e); | |
| 1192 } | |
| 1193 | |
|
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1194 /************************************ |
|
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1195 */ |
| 0 | 1196 elem* sarray_toDarray(Loc loc, Type tfrom, Type tto, elem* e) |
| 1197 { | |
| 1198 //printf("sarray_toDarray()\n"); | |
| 1199 //elem_print(e); | |
| 1200 | |
| 1201 uint dim = cast(uint)(cast(TypeSArray)tfrom).dim.toInteger(); | |
| 1202 | |
| 1203 if (tto) | |
| 1204 { | |
| 1205 uint fsize = cast(uint)tfrom.nextOf().size(); | |
| 1206 uint tsize = cast(uint)tto.nextOf().size(); | |
| 1207 | |
| 1208 if ((dim * fsize) % tsize != 0) | |
| 1209 { | |
| 1210 Lerr: | |
| 1211 error(loc, "cannot cast %s to %s since sizes don't line up", tfrom.toChars(), tto.toChars()); | |
| 1212 } | |
| 1213 dim = (dim * fsize) / tsize; | |
| 1214 } | |
| 1215 | |
| 1216 L1: | |
|
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1217 elem* elen = el_long(TYM.TYint, dim); |
|
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1218 e = addressElem(e, tfrom); |
| 0 | 1219 e = el_pair(TYM.TYullong, elen, e); |
| 1220 return e; | |
| 1221 } | |
| 1222 | |
| 1223 elem* eval_Darray(IRState* irs, Expression e) | |
| 1224 { | |
| 1225 elem* ex = e.toElem(irs); | |
| 1226 return array_toDarray(e.type, ex); | |
| 1227 } | |
| 1228 | |
| 1229 /*********************************************** | |
| 1230 * Generate code to set index into scope table. | |
| 1231 */ | |
| 1232 | |
| 1233 void setScopeIndex(Blockx* blx, block* b, int scope_index) | |
| 1234 { | |
| 1235 version (SEH) { | |
| 1236 block_appendexp(b, nteh_setScopeTableIndex(blx, scope_index)); | |
| 1237 } | |
| 1238 } | |
| 1239 | |
| 1240 /**************************************** | |
| 1241 * Create a static symbol we can hang DT initializers onto. | |
| 1242 */ | |
| 1243 | |
| 1244 Symbol* static_sym() | |
| 1245 { | |
| 1246 Symbol* s; | |
| 1247 type* t; | |
| 1248 | |
| 1249 t = type_alloc(TYint); | |
| 1250 t.Tcount++; | |
| 1251 s = symbol_calloc("internal"); | |
| 1252 s.Sclass = SCstatic; | |
| 1253 s.Sfl = FLextern; | |
| 1254 s.Sflags |= SFLnodebug; | |
| 1255 s.Stype = t; | |
| 1256 version (ELFOBJ_OR_MACHOBJ) { | |
|
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1257 s.Sseg = Segment.DATA; |
| 0 | 1258 } |
| 1259 slist_add(s); | |
| 1260 return s; | |
| 1261 } | |
| 1262 | |
| 1263 /************************************** | |
| 1264 * Convert label to block. | |
| 1265 */ | |
| 1266 | |
| 1267 block* labelToBlock(Loc loc, Blockx *blx, LabelDsymbol label) | |
| 1268 { | |
| 1269 LabelStatement s; | |
| 1270 | |
| 1271 if (!label.statement) | |
| 1272 { | |
| 1273 error(loc, "undefined label %s", label.toChars()); | |
| 1274 return null; | |
| 1275 } | |
| 1276 | |
| 1277 s = label.statement; | |
| 1278 if (!s.lblock) | |
| 174 | 1279 { |
| 0 | 1280 s.lblock = block_calloc(blx); |
| 1281 if (s.isReturnLabel) | |
| 1282 s.lblock.Btry = null; | |
| 1283 } | |
| 1284 return s.lblock; | |
|
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1285 } |
| 67 | 1286 |
| 1287 /******************************************* | |
| 1288 * Generate elem to zero fill contents of Symbol stmp | |
| 1289 * from *poffset..offset2. | |
| 1290 * May store anywhere from 0..maxoff, as this function | |
| 1291 * tries to use aligned int stores whereever possible. | |
| 1292 * Update *poffset to end of initialized hole; *poffset will be >= offset2. | |
| 1293 */ | |
| 1294 | |
| 1295 elem* fillHole(Symbol* stmp, size_t* poffset, size_t offset2, size_t maxoff) | |
| 174 | 1296 { |
| 67 | 1297 elem* e = null; |
| 1298 int basealign = 1; | |
| 1299 | |
| 1300 while (*poffset < offset2) | |
| 174 | 1301 { |
| 67 | 1302 tym_t ty; |
| 1303 elem* e1; | |
| 1304 | |
| 1305 if (tybasic(stmp.Stype.Tty) == TYnptr) | |
| 1306 e1 = el_var(stmp); | |
| 1307 else | |
| 1308 e1 = el_ptr(stmp); | |
| 174 | 1309 |
| 67 | 1310 if (basealign) |
| 1311 *poffset &= ~3; | |
| 174 | 1312 |
| 67 | 1313 basealign = 1; |
| 1314 size_t sz = maxoff - *poffset; | |
| 1315 switch (sz) | |
| 174 | 1316 { |
| 67 | 1317 case 1: ty = TYchar; break; |
| 1318 case 2: ty = TYshort; break; | |
| 1319 case 3: | |
| 1320 ty = TYshort; | |
| 1321 basealign = 0; | |
| 1322 break; | |
| 1323 default: | |
| 1324 ty = TYlong; | |
| 1325 break; | |
| 1326 } | |
| 1327 e1 = el_bin(OPadd, TYnptr, e1, el_long(TYsize_t, *poffset)); | |
| 1328 e1 = el_una(OPind, ty, e1); | |
| 1329 e1 = el_bin(OPeq, ty, e1, el_long(ty, 0)); | |
| 1330 e = el_combine(e, e1); | |
| 1331 *poffset += tysize[ty]; | |
| 1332 } | |
| 1333 return e; | |
| 174 | 1334 } |