1 //===---- CGBuiltin.cpp - Emit LLVM Code for builtins ---------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This contains code to emit Builtin calls as LLVM code. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "TargetInfo.h" 15 #include "CodeGenFunction.h" 16 #include "CodeGenModule.h" 17 #include "CGObjCRuntime.h" 18 #include "clang/Basic/TargetInfo.h" 19 #include "clang/AST/ASTContext.h" 20 #include "clang/AST/Decl.h" 21 #include "clang/Basic/TargetBuiltins.h" 22 #include "llvm/Intrinsics.h" 23 #include "llvm/Target/TargetData.h" 24 25 using namespace clang; 26 using namespace CodeGen; 27 using namespace llvm; 28 29 /// getBuiltinLibFunction - Given a builtin id for a function like 30 /// "__builtin_fabsf", return a Function* for "fabsf". 31 llvm::Value *CodeGenModule::getBuiltinLibFunction(const FunctionDecl *FD, 32 unsigned BuiltinID) { 33 assert(Context.BuiltinInfo.isLibFunction(BuiltinID)); 34 35 // Get the name, skip over the __builtin_ prefix (if necessary). 36 StringRef Name; 37 GlobalDecl D(FD); 38 39 // If the builtin has been declared explicitly with an assembler label, 40 // use the mangled name. This differs from the plain label on platforms 41 // that prefix labels. 42 if (FD->hasAttr<AsmLabelAttr>()) 43 Name = getMangledName(D); 44 else 45 Name = Context.BuiltinInfo.GetName(BuiltinID) + 10; 46 47 llvm::FunctionType *Ty = 48 cast<llvm::FunctionType>(getTypes().ConvertType(FD->getType())); 49 50 return GetOrCreateLLVMFunction(Name, Ty, D, /*ForVTable=*/false); 51 } 52 53 /// Emit the conversions required to turn the given value into an 54 /// integer of the given size. 55 static Value *EmitToInt(CodeGenFunction &CGF, llvm::Value *V, 56 QualType T, llvm::IntegerType *IntType) { 57 V = CGF.EmitToMemory(V, T); 58 59 if (V->getType()->isPointerTy()) 60 return CGF.Builder.CreatePtrToInt(V, IntType); 61 62 assert(V->getType() == IntType); 63 return V; 64 } 65 66 static Value *EmitFromInt(CodeGenFunction &CGF, llvm::Value *V, 67 QualType T, llvm::Type *ResultType) { 68 V = CGF.EmitFromMemory(V, T); 69 70 if (ResultType->isPointerTy()) 71 return CGF.Builder.CreateIntToPtr(V, ResultType); 72 73 assert(V->getType() == ResultType); 74 return V; 75 } 76 77 /// Utility to insert an atomic instruction based on Instrinsic::ID 78 /// and the expression node. 79 static RValue EmitBinaryAtomic(CodeGenFunction &CGF, 80 llvm::AtomicRMWInst::BinOp Kind, 81 const CallExpr *E) { 82 QualType T = E->getType(); 83 assert(E->getArg(0)->getType()->isPointerType()); 84 assert(CGF.getContext().hasSameUnqualifiedType(T, 85 E->getArg(0)->getType()->getPointeeType())); 86 assert(CGF.getContext().hasSameUnqualifiedType(T, E->getArg(1)->getType())); 87 88 llvm::Value *DestPtr = CGF.EmitScalarExpr(E->getArg(0)); 89 unsigned AddrSpace = 90 cast<llvm::PointerType>(DestPtr->getType())->getAddressSpace(); 91 92 llvm::IntegerType *IntType = 93 llvm::IntegerType::get(CGF.getLLVMContext(), 94 CGF.getContext().getTypeSize(T)); 95 llvm::Type *IntPtrType = IntType->getPointerTo(AddrSpace); 96 97 llvm::Value *Args[2]; 98 Args[0] = CGF.Builder.CreateBitCast(DestPtr, IntPtrType); 99 Args[1] = CGF.EmitScalarExpr(E->getArg(1)); 100 llvm::Type *ValueType = Args[1]->getType(); 101 Args[1] = EmitToInt(CGF, Args[1], T, IntType); 102 103 llvm::Value *Result = 104 CGF.Builder.CreateAtomicRMW(Kind, Args[0], Args[1], 105 llvm::SequentiallyConsistent); 106 Result = EmitFromInt(CGF, Result, T, ValueType); 107 return RValue::get(Result); 108 } 109 110 /// Utility to insert an atomic instruction based Instrinsic::ID and 111 /// the expression node, where the return value is the result of the 112 /// operation. 113 static RValue EmitBinaryAtomicPost(CodeGenFunction &CGF, 114 llvm::AtomicRMWInst::BinOp Kind, 115 const CallExpr *E, 116 Instruction::BinaryOps Op) { 117 QualType T = E->getType(); 118 assert(E->getArg(0)->getType()->isPointerType()); 119 assert(CGF.getContext().hasSameUnqualifiedType(T, 120 E->getArg(0)->getType()->getPointeeType())); 121 assert(CGF.getContext().hasSameUnqualifiedType(T, E->getArg(1)->getType())); 122 123 llvm::Value *DestPtr = CGF.EmitScalarExpr(E->getArg(0)); 124 unsigned AddrSpace = 125 cast<llvm::PointerType>(DestPtr->getType())->getAddressSpace(); 126 127 llvm::IntegerType *IntType = 128 llvm::IntegerType::get(CGF.getLLVMContext(), 129 CGF.getContext().getTypeSize(T)); 130 llvm::Type *IntPtrType = IntType->getPointerTo(AddrSpace); 131 132 llvm::Value *Args[2]; 133 Args[1] = CGF.EmitScalarExpr(E->getArg(1)); 134 llvm::Type *ValueType = Args[1]->getType(); 135 Args[1] = EmitToInt(CGF, Args[1], T, IntType); 136 Args[0] = CGF.Builder.CreateBitCast(DestPtr, IntPtrType); 137 138 llvm::Value *Result = 139 CGF.Builder.CreateAtomicRMW(Kind, Args[0], Args[1], 140 llvm::SequentiallyConsistent); 141 Result = CGF.Builder.CreateBinOp(Op, Result, Args[1]); 142 Result = EmitFromInt(CGF, Result, T, ValueType); 143 return RValue::get(Result); 144 } 145 146 /// EmitFAbs - Emit a call to fabs/fabsf/fabsl, depending on the type of ValTy, 147 /// which must be a scalar floating point type. 148 static Value *EmitFAbs(CodeGenFunction &CGF, Value *V, QualType ValTy) { 149 const BuiltinType *ValTyP = ValTy->getAs<BuiltinType>(); 150 assert(ValTyP && "isn't scalar fp type!"); 151 152 StringRef FnName; 153 switch (ValTyP->getKind()) { 154 default: llvm_unreachable("Isn't a scalar fp type!"); 155 case BuiltinType::Float: FnName = "fabsf"; break; 156 case BuiltinType::Double: FnName = "fabs"; break; 157 case BuiltinType::LongDouble: FnName = "fabsl"; break; 158 } 159 160 // The prototype is something that takes and returns whatever V's type is. 161 llvm::FunctionType *FT = llvm::FunctionType::get(V->getType(), V->getType(), 162 false); 163 llvm::Value *Fn = CGF.CGM.CreateRuntimeFunction(FT, FnName); 164 165 return CGF.Builder.CreateCall(Fn, V, "abs"); 166 } 167 168 static RValue emitLibraryCall(CodeGenFunction &CGF, const FunctionDecl *Fn, 169 const CallExpr *E, llvm::Value *calleeValue) { 170 return CGF.EmitCall(E->getCallee()->getType(), calleeValue, 171 ReturnValueSlot(), E->arg_begin(), E->arg_end(), Fn); 172 } 173 174 RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD, 175 unsigned BuiltinID, const CallExpr *E) { 176 // See if we can constant fold this builtin. If so, don't emit it at all. 177 Expr::EvalResult Result; 178 if (E->EvaluateAsRValue(Result, CGM.getContext()) && 179 !Result.hasSideEffects()) { 180 if (Result.Val.isInt()) 181 return RValue::get(llvm::ConstantInt::get(getLLVMContext(), 182 Result.Val.getInt())); 183 if (Result.Val.isFloat()) 184 return RValue::get(llvm::ConstantFP::get(getLLVMContext(), 185 Result.Val.getFloat())); 186 } 187 188 switch (BuiltinID) { 189 default: break; // Handle intrinsics and libm functions below. 190 case Builtin::BI__builtin___CFStringMakeConstantString: 191 case Builtin::BI__builtin___NSStringMakeConstantString: 192 return RValue::get(CGM.EmitConstantExpr(E, E->getType(), 0)); 193 case Builtin::BI__builtin_stdarg_start: 194 case Builtin::BI__builtin_va_start: 195 case Builtin::BI__builtin_va_end: { 196 Value *ArgValue = EmitVAListRef(E->getArg(0)); 197 llvm::Type *DestType = Int8PtrTy; 198 if (ArgValue->getType() != DestType) 199 ArgValue = Builder.CreateBitCast(ArgValue, DestType, 200 ArgValue->getName().data()); 201 202 Intrinsic::ID inst = (BuiltinID == Builtin::BI__builtin_va_end) ? 203 Intrinsic::vaend : Intrinsic::vastart; 204 return RValue::get(Builder.CreateCall(CGM.getIntrinsic(inst), ArgValue)); 205 } 206 case Builtin::BI__builtin_va_copy: { 207 Value *DstPtr = EmitVAListRef(E->getArg(0)); 208 Value *SrcPtr = EmitVAListRef(E->getArg(1)); 209 210 llvm::Type *Type = Int8PtrTy; 211 212 DstPtr = Builder.CreateBitCast(DstPtr, Type); 213 SrcPtr = Builder.CreateBitCast(SrcPtr, Type); 214 return RValue::get(Builder.CreateCall2(CGM.getIntrinsic(Intrinsic::vacopy), 215 DstPtr, SrcPtr)); 216 } 217 case Builtin::BI__builtin_abs: 218 case Builtin::BI__builtin_labs: 219 case Builtin::BI__builtin_llabs: { 220 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 221 222 Value *NegOp = Builder.CreateNeg(ArgValue, "neg"); 223 Value *CmpResult = 224 Builder.CreateICmpSGE(ArgValue, 225 llvm::Constant::getNullValue(ArgValue->getType()), 226 "abscond"); 227 Value *Result = 228 Builder.CreateSelect(CmpResult, ArgValue, NegOp, "abs"); 229 230 return RValue::get(Result); 231 } 232 233 case Builtin::BI__builtin_conj: 234 case Builtin::BI__builtin_conjf: 235 case Builtin::BI__builtin_conjl: { 236 ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0)); 237 Value *Real = ComplexVal.first; 238 Value *Imag = ComplexVal.second; 239 Value *Zero = 240 Imag->getType()->isFPOrFPVectorTy() 241 ? llvm::ConstantFP::getZeroValueForNegation(Imag->getType()) 242 : llvm::Constant::getNullValue(Imag->getType()); 243 244 Imag = Builder.CreateFSub(Zero, Imag, "sub"); 245 return RValue::getComplex(std::make_pair(Real, Imag)); 246 } 247 case Builtin::BI__builtin_creal: 248 case Builtin::BI__builtin_crealf: 249 case Builtin::BI__builtin_creall: { 250 ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0)); 251 return RValue::get(ComplexVal.first); 252 } 253 254 case Builtin::BI__builtin_cimag: 255 case Builtin::BI__builtin_cimagf: 256 case Builtin::BI__builtin_cimagl: { 257 ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0)); 258 return RValue::get(ComplexVal.second); 259 } 260 261 case Builtin::BI__builtin_ctzs: 262 case Builtin::BI__builtin_ctz: 263 case Builtin::BI__builtin_ctzl: 264 case Builtin::BI__builtin_ctzll: { 265 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 266 267 llvm::Type *ArgType = ArgValue->getType(); 268 Value *F = CGM.getIntrinsic(Intrinsic::cttz, ArgType); 269 270 llvm::Type *ResultType = ConvertType(E->getType()); 271 Value *ZeroUndef = Builder.getInt1(Target.isCLZForZeroUndef()); 272 Value *Result = Builder.CreateCall2(F, ArgValue, ZeroUndef); 273 if (Result->getType() != ResultType) 274 Result = Builder.CreateIntCast(Result, ResultType, /*isSigned*/true, 275 "cast"); 276 return RValue::get(Result); 277 } 278 case Builtin::BI__builtin_clzs: 279 case Builtin::BI__builtin_clz: 280 case Builtin::BI__builtin_clzl: 281 case Builtin::BI__builtin_clzll: { 282 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 283 284 llvm::Type *ArgType = ArgValue->getType(); 285 Value *F = CGM.getIntrinsic(Intrinsic::ctlz, ArgType); 286 287 llvm::Type *ResultType = ConvertType(E->getType()); 288 Value *ZeroUndef = Builder.getInt1(Target.isCLZForZeroUndef()); 289 Value *Result = Builder.CreateCall2(F, ArgValue, ZeroUndef); 290 if (Result->getType() != ResultType) 291 Result = Builder.CreateIntCast(Result, ResultType, /*isSigned*/true, 292 "cast"); 293 return RValue::get(Result); 294 } 295 case Builtin::BI__builtin_ffs: 296 case Builtin::BI__builtin_ffsl: 297 case Builtin::BI__builtin_ffsll: { 298 // ffs(x) -> x ? cttz(x) + 1 : 0 299 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 300 301 llvm::Type *ArgType = ArgValue->getType(); 302 Value *F = CGM.getIntrinsic(Intrinsic::cttz, ArgType); 303 304 llvm::Type *ResultType = ConvertType(E->getType()); 305 Value *Tmp = Builder.CreateAdd(Builder.CreateCall2(F, ArgValue, 306 Builder.getTrue()), 307 llvm::ConstantInt::get(ArgType, 1)); 308 Value *Zero = llvm::Constant::getNullValue(ArgType); 309 Value *IsZero = Builder.CreateICmpEQ(ArgValue, Zero, "iszero"); 310 Value *Result = Builder.CreateSelect(IsZero, Zero, Tmp, "ffs"); 311 if (Result->getType() != ResultType) 312 Result = Builder.CreateIntCast(Result, ResultType, /*isSigned*/true, 313 "cast"); 314 return RValue::get(Result); 315 } 316 case Builtin::BI__builtin_parity: 317 case Builtin::BI__builtin_parityl: 318 case Builtin::BI__builtin_parityll: { 319 // parity(x) -> ctpop(x) & 1 320 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 321 322 llvm::Type *ArgType = ArgValue->getType(); 323 Value *F = CGM.getIntrinsic(Intrinsic::ctpop, ArgType); 324 325 llvm::Type *ResultType = ConvertType(E->getType()); 326 Value *Tmp = Builder.CreateCall(F, ArgValue); 327 Value *Result = Builder.CreateAnd(Tmp, llvm::ConstantInt::get(ArgType, 1)); 328 if (Result->getType() != ResultType) 329 Result = Builder.CreateIntCast(Result, ResultType, /*isSigned*/true, 330 "cast"); 331 return RValue::get(Result); 332 } 333 case Builtin::BI__builtin_popcount: 334 case Builtin::BI__builtin_popcountl: 335 case Builtin::BI__builtin_popcountll: { 336 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 337 338 llvm::Type *ArgType = ArgValue->getType(); 339 Value *F = CGM.getIntrinsic(Intrinsic::ctpop, ArgType); 340 341 llvm::Type *ResultType = ConvertType(E->getType()); 342 Value *Result = Builder.CreateCall(F, ArgValue); 343 if (Result->getType() != ResultType) 344 Result = Builder.CreateIntCast(Result, ResultType, /*isSigned*/true, 345 "cast"); 346 return RValue::get(Result); 347 } 348 case Builtin::BI__builtin_expect: { 349 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 350 llvm::Type *ArgType = ArgValue->getType(); 351 352 Value *FnExpect = CGM.getIntrinsic(Intrinsic::expect, ArgType); 353 Value *ExpectedValue = EmitScalarExpr(E->getArg(1)); 354 355 Value *Result = Builder.CreateCall2(FnExpect, ArgValue, ExpectedValue, 356 "expval"); 357 return RValue::get(Result); 358 } 359 case Builtin::BI__builtin_bswap32: 360 case Builtin::BI__builtin_bswap64: { 361 Value *ArgValue = EmitScalarExpr(E->getArg(0)); 362 llvm::Type *ArgType = ArgValue->getType(); 363 Value *F = CGM.getIntrinsic(Intrinsic::bswap, ArgType); 364 return RValue::get(Builder.CreateCall(F, ArgValue)); 365 } 366 case Builtin::BI__builtin_object_size: { 367 // We rely on constant folding to deal with expressions with side effects. 368 assert(!E->getArg(0)->HasSideEffects(getContext()) && 369 "should have been constant folded"); 370 371 // We pass this builtin onto the optimizer so that it can 372 // figure out the object size in more complex cases. 373 llvm::Type *ResType = ConvertType(E->getType()); 374 375 // LLVM only supports 0 and 2, make sure that we pass along that 376 // as a boolean. 377 Value *Ty = EmitScalarExpr(E->getArg(1)); 378 ConstantInt *CI = dyn_cast<ConstantInt>(Ty); 379 assert(CI); 380 uint64_t val = CI->getZExtValue(); 381 CI = ConstantInt::get(Builder.getInt1Ty(), (val & 0x2) >> 1); 382 383 Value *F = CGM.getIntrinsic(Intrinsic::objectsize, ResType); 384 return RValue::get(Builder.CreateCall2(F, EmitScalarExpr(E->getArg(0)),CI)); 385 } 386 case Builtin::BI__builtin_prefetch: { 387 Value *Locality, *RW, *Address = EmitScalarExpr(E->getArg(0)); 388 // FIXME: Technically these constants should of type 'int', yes? 389 RW = (E->getNumArgs() > 1) ? EmitScalarExpr(E->getArg(1)) : 390 llvm::ConstantInt::get(Int32Ty, 0); 391 Locality = (E->getNumArgs() > 2) ? EmitScalarExpr(E->getArg(2)) : 392 llvm::ConstantInt::get(Int32Ty, 3); 393 Value *Data = llvm::ConstantInt::get(Int32Ty, 1); 394 Value *F = CGM.getIntrinsic(Intrinsic::prefetch); 395 return RValue::get(Builder.CreateCall4(F, Address, RW, Locality, Data)); 396 } 397 case Builtin::BI__builtin_readcyclecounter: { 398 Value *F = CGM.getIntrinsic(Intrinsic::readcyclecounter); 399 return RValue::get(Builder.CreateCall(F)); 400 } 401 case Builtin::BI__builtin_trap: { 402 Value *F = CGM.getIntrinsic(Intrinsic::trap); 403 return RValue::get(Builder.CreateCall(F)); 404 } 405 case Builtin::BI__builtin_unreachable: { 406 if (CatchUndefined) 407 EmitCheck(Builder.getFalse()); 408 else 409 Builder.CreateUnreachable(); 410 411 // We do need to preserve an insertion point. 412 EmitBlock(createBasicBlock("unreachable.cont")); 413 414 return RValue::get(0); 415 } 416 417 case Builtin::BI__builtin_powi: 418 case Builtin::BI__builtin_powif: 419 case Builtin::BI__builtin_powil: { 420 Value *Base = EmitScalarExpr(E->getArg(0)); 421 Value *Exponent = EmitScalarExpr(E->getArg(1)); 422 llvm::Type *ArgType = Base->getType(); 423 Value *F = CGM.getIntrinsic(Intrinsic::powi, ArgType); 424 return RValue::get(Builder.CreateCall2(F, Base, Exponent)); 425 } 426 427 case Builtin::BI__builtin_isgreater: 428 case Builtin::BI__builtin_isgreaterequal: 429 case Builtin::BI__builtin_isless: 430 case Builtin::BI__builtin_islessequal: 431 case Builtin::BI__builtin_islessgreater: 432 case Builtin::BI__builtin_isunordered: { 433 // Ordered comparisons: we know the arguments to these are matching scalar 434 // floating point values. 435 Value *LHS = EmitScalarExpr(E->getArg(0)); 436 Value *RHS = EmitScalarExpr(E->getArg(1)); 437 438 switch (BuiltinID) { 439 default: llvm_unreachable("Unknown ordered comparison"); 440 case Builtin::BI__builtin_isgreater: 441 LHS = Builder.CreateFCmpOGT(LHS, RHS, "cmp"); 442 break; 443 case Builtin::BI__builtin_isgreaterequal: 444 LHS = Builder.CreateFCmpOGE(LHS, RHS, "cmp"); 445 break; 446 case Builtin::BI__builtin_isless: 447 LHS = Builder.CreateFCmpOLT(LHS, RHS, "cmp"); 448 break; 449 case Builtin::BI__builtin_islessequal: 450 LHS = Builder.CreateFCmpOLE(LHS, RHS, "cmp"); 451 break; 452 case Builtin::BI__builtin_islessgreater: 453 LHS = Builder.CreateFCmpONE(LHS, RHS, "cmp"); 454 break; 455 case Builtin::BI__builtin_isunordered: 456 LHS = Builder.CreateFCmpUNO(LHS, RHS, "cmp"); 457 break; 458 } 459 // ZExt bool to int type. 460 return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()))); 461 } 462 case Builtin::BI__builtin_isnan: { 463 Value *V = EmitScalarExpr(E->getArg(0)); 464 V = Builder.CreateFCmpUNO(V, V, "cmp"); 465 return RValue::get(Builder.CreateZExt(V, ConvertType(E->getType()))); 466 } 467 468 case Builtin::BI__builtin_isinf: { 469 // isinf(x) --> fabs(x) == infinity 470 Value *V = EmitScalarExpr(E->getArg(0)); 471 V = EmitFAbs(*this, V, E->getArg(0)->getType()); 472 473 V = Builder.CreateFCmpOEQ(V, ConstantFP::getInfinity(V->getType()),"isinf"); 474 return RValue::get(Builder.CreateZExt(V, ConvertType(E->getType()))); 475 } 476 477 // TODO: BI__builtin_isinf_sign 478 // isinf_sign(x) -> isinf(x) ? (signbit(x) ? -1 : 1) : 0 479 480 case Builtin::BI__builtin_isnormal: { 481 // isnormal(x) --> x == x && fabsf(x) < infinity && fabsf(x) >= float_min 482 Value *V = EmitScalarExpr(E->getArg(0)); 483 Value *Eq = Builder.CreateFCmpOEQ(V, V, "iseq"); 484 485 Value *Abs = EmitFAbs(*this, V, E->getArg(0)->getType()); 486 Value *IsLessThanInf = 487 Builder.CreateFCmpULT(Abs, ConstantFP::getInfinity(V->getType()),"isinf"); 488 APFloat Smallest = APFloat::getSmallestNormalized( 489 getContext().getFloatTypeSemantics(E->getArg(0)->getType())); 490 Value *IsNormal = 491 Builder.CreateFCmpUGE(Abs, ConstantFP::get(V->getContext(), Smallest), 492 "isnormal"); 493 V = Builder.CreateAnd(Eq, IsLessThanInf, "and"); 494 V = Builder.CreateAnd(V, IsNormal, "and"); 495 return RValue::get(Builder.CreateZExt(V, ConvertType(E->getType()))); 496 } 497 498 case Builtin::BI__builtin_isfinite: { 499 // isfinite(x) --> x == x && fabs(x) != infinity; 500 Value *V = EmitScalarExpr(E->getArg(0)); 501 Value *Eq = Builder.CreateFCmpOEQ(V, V, "iseq"); 502 503 Value *Abs = EmitFAbs(*this, V, E->getArg(0)->getType()); 504 Value *IsNotInf = 505 Builder.CreateFCmpUNE(Abs, ConstantFP::getInfinity(V->getType()),"isinf"); 506 507 V = Builder.CreateAnd(Eq, IsNotInf, "and"); 508 return RValue::get(Builder.CreateZExt(V, ConvertType(E->getType()))); 509 } 510 511 case Builtin::BI__builtin_fpclassify: { 512 Value *V = EmitScalarExpr(E->getArg(5)); 513 llvm::Type *Ty = ConvertType(E->getArg(5)->getType()); 514 515 // Create Result 516 BasicBlock *Begin = Builder.GetInsertBlock(); 517 BasicBlock *End = createBasicBlock("fpclassify_end", this->CurFn); 518 Builder.SetInsertPoint(End); 519 PHINode *Result = 520 Builder.CreatePHI(ConvertType(E->getArg(0)->getType()), 4, 521 "fpclassify_result"); 522 523 // if (V==0) return FP_ZERO 524 Builder.SetInsertPoint(Begin); 525 Value *IsZero = Builder.CreateFCmpOEQ(V, Constant::getNullValue(Ty), 526 "iszero"); 527 Value *ZeroLiteral = EmitScalarExpr(E->getArg(4)); 528 BasicBlock *NotZero = createBasicBlock("fpclassify_not_zero", this->CurFn); 529 Builder.CreateCondBr(IsZero, End, NotZero); 530 Result->addIncoming(ZeroLiteral, Begin); 531 532 // if (V != V) return FP_NAN 533 Builder.SetInsertPoint(NotZero); 534 Value *IsNan = Builder.CreateFCmpUNO(V, V, "cmp"); 535 Value *NanLiteral = EmitScalarExpr(E->getArg(0)); 536 BasicBlock *NotNan = createBasicBlock("fpclassify_not_nan", this->CurFn); 537 Builder.CreateCondBr(IsNan, End, NotNan); 538 Result->addIncoming(NanLiteral, NotZero); 539 540 // if (fabs(V) == infinity) return FP_INFINITY 541 Builder.SetInsertPoint(NotNan); 542 Value *VAbs = EmitFAbs(*this, V, E->getArg(5)->getType()); 543 Value *IsInf = 544 Builder.CreateFCmpOEQ(VAbs, ConstantFP::getInfinity(V->getType()), 545 "isinf"); 546 Value *InfLiteral = EmitScalarExpr(E->getArg(1)); 547 BasicBlock *NotInf = createBasicBlock("fpclassify_not_inf", this->CurFn); 548 Builder.CreateCondBr(IsInf, End, NotInf); 549 Result->addIncoming(InfLiteral, NotNan); 550 551 // if (fabs(V) >= MIN_NORMAL) return FP_NORMAL else FP_SUBNORMAL 552 Builder.SetInsertPoint(NotInf); 553 APFloat Smallest = APFloat::getSmallestNormalized( 554 getContext().getFloatTypeSemantics(E->getArg(5)->getType())); 555 Value *IsNormal = 556 Builder.CreateFCmpUGE(VAbs, ConstantFP::get(V->getContext(), Smallest), 557 "isnormal"); 558 Value *NormalResult = 559 Builder.CreateSelect(IsNormal, EmitScalarExpr(E->getArg(2)), 560 EmitScalarExpr(E->getArg(3))); 561 Builder.CreateBr(End); 562 Result->addIncoming(NormalResult, NotInf); 563 564 // return Result 565 Builder.SetInsertPoint(End); 566 return RValue::get(Result); 567 } 568 569 case Builtin::BIalloca: 570 case Builtin::BI__builtin_alloca: { 571 Value *Size = EmitScalarExpr(E->getArg(0)); 572 return RValue::get(Builder.CreateAlloca(Builder.getInt8Ty(), Size)); 573 } 574 case Builtin::BIbzero: 575 case Builtin::BI__builtin_bzero: { 576 std::pair<llvm::Value*, unsigned> Dest = 577 EmitPointerWithAlignment(E->getArg(0)); 578 Value *SizeVal = EmitScalarExpr(E->getArg(1)); 579 Builder.CreateMemSet(Dest.first, Builder.getInt8(0), SizeVal, 580 Dest.second, false); 581 return RValue::get(Dest.first); 582 } 583 case Builtin::BImemcpy: 584 case Builtin::BI__builtin_memcpy: { 585 std::pair<llvm::Value*, unsigned> Dest = 586 EmitPointerWithAlignment(E->getArg(0)); 587 std::pair<llvm::Value*, unsigned> Src = 588 EmitPointerWithAlignment(E->getArg(1)); 589 Value *SizeVal = EmitScalarExpr(E->getArg(2)); 590 unsigned Align = std::min(Dest.second, Src.second); 591 Builder.CreateMemCpy(Dest.first, Src.first, SizeVal, Align, false); 592 return RValue::get(Dest.first); 593 } 594 595 case Builtin::BI__builtin___memcpy_chk: { 596 // fold __builtin_memcpy_chk(x, y, cst1, cst2) to memcpy iff cst1<=cst2. 597 llvm::APSInt Size, DstSize; 598 if (!E->getArg(2)->EvaluateAsInt(Size, CGM.getContext()) || 599 !E->getArg(3)->EvaluateAsInt(DstSize, CGM.getContext())) 600 break; 601 if (Size.ugt(DstSize)) 602 break; 603 std::pair<llvm::Value*, unsigned> Dest = 604 EmitPointerWithAlignment(E->getArg(0)); 605 std::pair<llvm::Value*, unsigned> Src = 606 EmitPointerWithAlignment(E->getArg(1)); 607 Value *SizeVal = llvm::ConstantInt::get(Builder.getContext(), Size); 608 unsigned Align = std::min(Dest.second, Src.second); 609 Builder.CreateMemCpy(Dest.first, Src.first, SizeVal, Align, false); 610 return RValue::get(Dest.first); 611 } 612 613 case Builtin::BI__builtin_objc_memmove_collectable: { 614 Value *Address = EmitScalarExpr(E->getArg(0)); 615 Value *SrcAddr = EmitScalarExpr(E->getArg(1)); 616 Value *SizeVal = EmitScalarExpr(E->getArg(2)); 617 CGM.getObjCRuntime().EmitGCMemmoveCollectable(*this, 618 Address, SrcAddr, SizeVal); 619 return RValue::get(Address); 620 } 621 622 case Builtin::BI__builtin___memmove_chk: { 623 // fold __builtin_memmove_chk(x, y, cst1, cst2) to memmove iff cst1<=cst2. 624 llvm::APSInt Size, DstSize; 625 if (!E->getArg(2)->EvaluateAsInt(Size, CGM.getContext()) || 626 !E->getArg(3)->EvaluateAsInt(DstSize, CGM.getContext())) 627 break; 628 if (Size.ugt(DstSize)) 629 break; 630 std::pair<llvm::Value*, unsigned> Dest = 631 EmitPointerWithAlignment(E->getArg(0)); 632 std::pair<llvm::Value*, unsigned> Src = 633 EmitPointerWithAlignment(E->getArg(1)); 634 Value *SizeVal = llvm::ConstantInt::get(Builder.getContext(), Size); 635 unsigned Align = std::min(Dest.second, Src.second); 636 Builder.CreateMemMove(Dest.first, Src.first, SizeVal, Align, false); 637 return RValue::get(Dest.first); 638 } 639 640 case Builtin::BImemmove: 641 case Builtin::BI__builtin_memmove: { 642 std::pair<llvm::Value*, unsigned> Dest = 643 EmitPointerWithAlignment(E->getArg(0)); 644 std::pair<llvm::Value*, unsigned> Src = 645 EmitPointerWithAlignment(E->getArg(1)); 646 Value *SizeVal = EmitScalarExpr(E->getArg(2)); 647 unsigned Align = std::min(Dest.second, Src.second); 648 Builder.CreateMemMove(Dest.first, Src.first, SizeVal, Align, false); 649 return RValue::get(Dest.first); 650 } 651 case Builtin::BImemset: 652 case Builtin::BI__builtin_memset: { 653 std::pair<llvm::Value*, unsigned> Dest = 654 EmitPointerWithAlignment(E->getArg(0)); 655 Value *ByteVal = Builder.CreateTrunc(EmitScalarExpr(E->getArg(1)), 656 Builder.getInt8Ty()); 657 Value *SizeVal = EmitScalarExpr(E->getArg(2)); 658 Builder.CreateMemSet(Dest.first, ByteVal, SizeVal, Dest.second, false); 659 return RValue::get(Dest.first); 660 } 661 case Builtin::BI__builtin___memset_chk: { 662 // fold __builtin_memset_chk(x, y, cst1, cst2) to memset iff cst1<=cst2. 663 llvm::APSInt Size, DstSize; 664 if (!E->getArg(2)->EvaluateAsInt(Size, CGM.getContext()) || 665 !E->getArg(3)->EvaluateAsInt(DstSize, CGM.getContext())) 666 break; 667 if (Size.ugt(DstSize)) 668 break; 669 std::pair<llvm::Value*, unsigned> Dest = 670 EmitPointerWithAlignment(E->getArg(0)); 671 Value *ByteVal = Builder.CreateTrunc(EmitScalarExpr(E->getArg(1)), 672 Builder.getInt8Ty()); 673 Value *SizeVal = llvm::ConstantInt::get(Builder.getContext(), Size); 674 Builder.CreateMemSet(Dest.first, ByteVal, SizeVal, Dest.second, false); 675 return RValue::get(Dest.first); 676 } 677 case Builtin::BI__builtin_dwarf_cfa: { 678 // The offset in bytes from the first argument to the CFA. 679 // 680 // Why on earth is this in the frontend? Is there any reason at 681 // all that the backend can't reasonably determine this while 682 // lowering llvm.eh.dwarf.cfa()? 683 // 684 // TODO: If there's a satisfactory reason, add a target hook for 685 // this instead of hard-coding 0, which is correct for most targets. 686 int32_t Offset = 0; 687 688 Value *F = CGM.getIntrinsic(Intrinsic::eh_dwarf_cfa); 689 return RValue::get(Builder.CreateCall(F, 690 llvm::ConstantInt::get(Int32Ty, Offset))); 691 } 692 case Builtin::BI__builtin_return_address: { 693 Value *Depth = EmitScalarExpr(E->getArg(0)); 694 Depth = Builder.CreateIntCast(Depth, Int32Ty, false); 695 Value *F = CGM.getIntrinsic(Intrinsic::returnaddress); 696 return RValue::get(Builder.CreateCall(F, Depth)); 697 } 698 case Builtin::BI__builtin_frame_address: { 699 Value *Depth = EmitScalarExpr(E->getArg(0)); 700 Depth = Builder.CreateIntCast(Depth, Int32Ty, false); 701 Value *F = CGM.getIntrinsic(Intrinsic::frameaddress); 702 return RValue::get(Builder.CreateCall(F, Depth)); 703 } 704 case Builtin::BI__builtin_extract_return_addr: { 705 Value *Address = EmitScalarExpr(E->getArg(0)); 706 Value *Result = getTargetHooks().decodeReturnAddress(*this, Address); 707 return RValue::get(Result); 708 } 709 case Builtin::BI__builtin_frob_return_addr: { 710 Value *Address = EmitScalarExpr(E->getArg(0)); 711 Value *Result = getTargetHooks().encodeReturnAddress(*this, Address); 712 return RValue::get(Result); 713 } 714 case Builtin::BI__builtin_dwarf_sp_column: { 715 llvm::IntegerType *Ty 716 = cast<llvm::IntegerType>(ConvertType(E->getType())); 717 int Column = getTargetHooks().getDwarfEHStackPointer(CGM); 718 if (Column == -1) { 719 CGM.ErrorUnsupported(E, "__builtin_dwarf_sp_column"); 720 return RValue::get(llvm::UndefValue::get(Ty)); 721 } 722 return RValue::get(llvm::ConstantInt::get(Ty, Column, true)); 723 } 724 case Builtin::BI__builtin_init_dwarf_reg_size_table: { 725 Value *Address = EmitScalarExpr(E->getArg(0)); 726 if (getTargetHooks().initDwarfEHRegSizeTable(*this, Address)) 727 CGM.ErrorUnsupported(E, "__builtin_init_dwarf_reg_size_table"); 728 return RValue::get(llvm::UndefValue::get(ConvertType(E->getType()))); 729 } 730 case Builtin::BI__builtin_eh_return: { 731 Value *Int = EmitScalarExpr(E->getArg(0)); 732 Value *Ptr = EmitScalarExpr(E->getArg(1)); 733 734 llvm::IntegerType *IntTy = cast<llvm::IntegerType>(Int->getType()); 735 assert((IntTy->getBitWidth() == 32 || IntTy->getBitWidth() == 64) && 736 "LLVM's __builtin_eh_return only supports 32- and 64-bit variants"); 737 Value *F = CGM.getIntrinsic(IntTy->getBitWidth() == 32 738 ? Intrinsic::eh_return_i32 739 : Intrinsic::eh_return_i64); 740 Builder.CreateCall2(F, Int, Ptr); 741 Builder.CreateUnreachable(); 742 743 // We do need to preserve an insertion point. 744 EmitBlock(createBasicBlock("builtin_eh_return.cont")); 745 746 return RValue::get(0); 747 } 748 case Builtin::BI__builtin_unwind_init: { 749 Value *F = CGM.getIntrinsic(Intrinsic::eh_unwind_init); 750 return RValue::get(Builder.CreateCall(F)); 751 } 752 case Builtin::BI__builtin_extend_pointer: { 753 // Extends a pointer to the size of an _Unwind_Word, which is 754 // uint64_t on all platforms. Generally this gets poked into a 755 // register and eventually used as an address, so if the 756 // addressing registers are wider than pointers and the platform 757 // doesn't implicitly ignore high-order bits when doing 758 // addressing, we need to make sure we zext / sext based on 759 // the platform's expectations. 760 // 761 // See: http://gcc.gnu.org/ml/gcc-bugs/2002-02/msg00237.html 762 763 // Cast the pointer to intptr_t. 764 Value *Ptr = EmitScalarExpr(E->getArg(0)); 765 Value *Result = Builder.CreatePtrToInt(Ptr, IntPtrTy, "extend.cast"); 766 767 // If that's 64 bits, we're done. 768 if (IntPtrTy->getBitWidth() == 64) 769 return RValue::get(Result); 770 771 // Otherwise, ask the codegen data what to do. 772 if (getTargetHooks().extendPointerWithSExt()) 773 return RValue::get(Builder.CreateSExt(Result, Int64Ty, "extend.sext")); 774 else 775 return RValue::get(Builder.CreateZExt(Result, Int64Ty, "extend.zext")); 776 } 777 case Builtin::BI__builtin_setjmp: { 778 // Buffer is a void**. 779 Value *Buf = EmitScalarExpr(E->getArg(0)); 780 781 // Store the frame pointer to the setjmp buffer. 782 Value *FrameAddr = 783 Builder.CreateCall(CGM.getIntrinsic(Intrinsic::frameaddress), 784 ConstantInt::get(Int32Ty, 0)); 785 Builder.CreateStore(FrameAddr, Buf); 786 787 // Store the stack pointer to the setjmp buffer. 788 Value *StackAddr = 789 Builder.CreateCall(CGM.getIntrinsic(Intrinsic::stacksave)); 790 Value *StackSaveSlot = 791 Builder.CreateGEP(Buf, ConstantInt::get(Int32Ty, 2)); 792 Builder.CreateStore(StackAddr, StackSaveSlot); 793 794 // Call LLVM's EH setjmp, which is lightweight. 795 Value *F = CGM.getIntrinsic(Intrinsic::eh_sjlj_setjmp); 796 Buf = Builder.CreateBitCast(Buf, Int8PtrTy); 797 return RValue::get(Builder.CreateCall(F, Buf)); 798 } 799 case Builtin::BI__builtin_longjmp: { 800 Value *Buf = EmitScalarExpr(E->getArg(0)); 801 Buf = Builder.CreateBitCast(Buf, Int8PtrTy); 802 803 // Call LLVM's EH longjmp, which is lightweight. 804 Builder.CreateCall(CGM.getIntrinsic(Intrinsic::eh_sjlj_longjmp), Buf); 805 806 // longjmp doesn't return; mark this as unreachable. 807 Builder.CreateUnreachable(); 808 809 // We do need to preserve an insertion point. 810 EmitBlock(createBasicBlock("longjmp.cont")); 811 812 return RValue::get(0); 813 } 814 case Builtin::BI__sync_fetch_and_add: 815 case Builtin::BI__sync_fetch_and_sub: 816 case Builtin::BI__sync_fetch_and_or: 817 case Builtin::BI__sync_fetch_and_and: 818 case Builtin::BI__sync_fetch_and_xor: 819 case Builtin::BI__sync_add_and_fetch: 820 case Builtin::BI__sync_sub_and_fetch: 821 case Builtin::BI__sync_and_and_fetch: 822 case Builtin::BI__sync_or_and_fetch: 823 case Builtin::BI__sync_xor_and_fetch: 824 case Builtin::BI__sync_val_compare_and_swap: 825 case Builtin::BI__sync_bool_compare_and_swap: 826 case Builtin::BI__sync_lock_test_and_set: 827 case Builtin::BI__sync_lock_release: 828 case Builtin::BI__sync_swap: 829 llvm_unreachable("Shouldn't make it through sema"); 830 case Builtin::BI__sync_fetch_and_add_1: 831 case Builtin::BI__sync_fetch_and_add_2: 832 case Builtin::BI__sync_fetch_and_add_4: 833 case Builtin::BI__sync_fetch_and_add_8: 834 case Builtin::BI__sync_fetch_and_add_16: 835 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Add, E); 836 case Builtin::BI__sync_fetch_and_sub_1: 837 case Builtin::BI__sync_fetch_and_sub_2: 838 case Builtin::BI__sync_fetch_and_sub_4: 839 case Builtin::BI__sync_fetch_and_sub_8: 840 case Builtin::BI__sync_fetch_and_sub_16: 841 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Sub, E); 842 case Builtin::BI__sync_fetch_and_or_1: 843 case Builtin::BI__sync_fetch_and_or_2: 844 case Builtin::BI__sync_fetch_and_or_4: 845 case Builtin::BI__sync_fetch_and_or_8: 846 case Builtin::BI__sync_fetch_and_or_16: 847 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Or, E); 848 case Builtin::BI__sync_fetch_and_and_1: 849 case Builtin::BI__sync_fetch_and_and_2: 850 case Builtin::BI__sync_fetch_and_and_4: 851 case Builtin::BI__sync_fetch_and_and_8: 852 case Builtin::BI__sync_fetch_and_and_16: 853 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::And, E); 854 case Builtin::BI__sync_fetch_and_xor_1: 855 case Builtin::BI__sync_fetch_and_xor_2: 856 case Builtin::BI__sync_fetch_and_xor_4: 857 case Builtin::BI__sync_fetch_and_xor_8: 858 case Builtin::BI__sync_fetch_and_xor_16: 859 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Xor, E); 860 861 // Clang extensions: not overloaded yet. 862 case Builtin::BI__sync_fetch_and_min: 863 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Min, E); 864 case Builtin::BI__sync_fetch_and_max: 865 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Max, E); 866 case Builtin::BI__sync_fetch_and_umin: 867 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::UMin, E); 868 case Builtin::BI__sync_fetch_and_umax: 869 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::UMax, E); 870 871 case Builtin::BI__sync_add_and_fetch_1: 872 case Builtin::BI__sync_add_and_fetch_2: 873 case Builtin::BI__sync_add_and_fetch_4: 874 case Builtin::BI__sync_add_and_fetch_8: 875 case Builtin::BI__sync_add_and_fetch_16: 876 return EmitBinaryAtomicPost(*this, llvm::AtomicRMWInst::Add, E, 877 llvm::Instruction::Add); 878 case Builtin::BI__sync_sub_and_fetch_1: 879 case Builtin::BI__sync_sub_and_fetch_2: 880 case Builtin::BI__sync_sub_and_fetch_4: 881 case Builtin::BI__sync_sub_and_fetch_8: 882 case Builtin::BI__sync_sub_and_fetch_16: 883 return EmitBinaryAtomicPost(*this, llvm::AtomicRMWInst::Sub, E, 884 llvm::Instruction::Sub); 885 case Builtin::BI__sync_and_and_fetch_1: 886 case Builtin::BI__sync_and_and_fetch_2: 887 case Builtin::BI__sync_and_and_fetch_4: 888 case Builtin::BI__sync_and_and_fetch_8: 889 case Builtin::BI__sync_and_and_fetch_16: 890 return EmitBinaryAtomicPost(*this, llvm::AtomicRMWInst::And, E, 891 llvm::Instruction::And); 892 case Builtin::BI__sync_or_and_fetch_1: 893 case Builtin::BI__sync_or_and_fetch_2: 894 case Builtin::BI__sync_or_and_fetch_4: 895 case Builtin::BI__sync_or_and_fetch_8: 896 case Builtin::BI__sync_or_and_fetch_16: 897 return EmitBinaryAtomicPost(*this, llvm::AtomicRMWInst::Or, E, 898 llvm::Instruction::Or); 899 case Builtin::BI__sync_xor_and_fetch_1: 900 case Builtin::BI__sync_xor_and_fetch_2: 901 case Builtin::BI__sync_xor_and_fetch_4: 902 case Builtin::BI__sync_xor_and_fetch_8: 903 case Builtin::BI__sync_xor_and_fetch_16: 904 return EmitBinaryAtomicPost(*this, llvm::AtomicRMWInst::Xor, E, 905 llvm::Instruction::Xor); 906 907 case Builtin::BI__sync_val_compare_and_swap_1: 908 case Builtin::BI__sync_val_compare_and_swap_2: 909 case Builtin::BI__sync_val_compare_and_swap_4: 910 case Builtin::BI__sync_val_compare_and_swap_8: 911 case Builtin::BI__sync_val_compare_and_swap_16: { 912 QualType T = E->getType(); 913 llvm::Value *DestPtr = EmitScalarExpr(E->getArg(0)); 914 unsigned AddrSpace = 915 cast<llvm::PointerType>(DestPtr->getType())->getAddressSpace(); 916 917 llvm::IntegerType *IntType = 918 llvm::IntegerType::get(getLLVMContext(), 919 getContext().getTypeSize(T)); 920 llvm::Type *IntPtrType = IntType->getPointerTo(AddrSpace); 921 922 Value *Args[3]; 923 Args[0] = Builder.CreateBitCast(DestPtr, IntPtrType); 924 Args[1] = EmitScalarExpr(E->getArg(1)); 925 llvm::Type *ValueType = Args[1]->getType(); 926 Args[1] = EmitToInt(*this, Args[1], T, IntType); 927 Args[2] = EmitToInt(*this, EmitScalarExpr(E->getArg(2)), T, IntType); 928 929 Value *Result = Builder.CreateAtomicCmpXchg(Args[0], Args[1], Args[2], 930 llvm::SequentiallyConsistent); 931 Result = EmitFromInt(*this, Result, T, ValueType); 932 return RValue::get(Result); 933 } 934 935 case Builtin::BI__sync_bool_compare_and_swap_1: 936 case Builtin::BI__sync_bool_compare_and_swap_2: 937 case Builtin::BI__sync_bool_compare_and_swap_4: 938 case Builtin::BI__sync_bool_compare_and_swap_8: 939 case Builtin::BI__sync_bool_compare_and_swap_16: { 940 QualType T = E->getArg(1)->getType(); 941 llvm::Value *DestPtr = EmitScalarExpr(E->getArg(0)); 942 unsigned AddrSpace = 943 cast<llvm::PointerType>(DestPtr->getType())->getAddressSpace(); 944 945 llvm::IntegerType *IntType = 946 llvm::IntegerType::get(getLLVMContext(), 947 getContext().getTypeSize(T)); 948 llvm::Type *IntPtrType = IntType->getPointerTo(AddrSpace); 949 950 Value *Args[3]; 951 Args[0] = Builder.CreateBitCast(DestPtr, IntPtrType); 952 Args[1] = EmitToInt(*this, EmitScalarExpr(E->getArg(1)), T, IntType); 953 Args[2] = EmitToInt(*this, EmitScalarExpr(E->getArg(2)), T, IntType); 954 955 Value *OldVal = Args[1]; 956 Value *PrevVal = Builder.CreateAtomicCmpXchg(Args[0], Args[1], Args[2], 957 llvm::SequentiallyConsistent); 958 Value *Result = Builder.CreateICmpEQ(PrevVal, OldVal); 959 // zext bool to int. 960 Result = Builder.CreateZExt(Result, ConvertType(E->getType())); 961 return RValue::get(Result); 962 } 963 964 case Builtin::BI__sync_swap_1: 965 case Builtin::BI__sync_swap_2: 966 case Builtin::BI__sync_swap_4: 967 case Builtin::BI__sync_swap_8: 968 case Builtin::BI__sync_swap_16: 969 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Xchg, E); 970 971 case Builtin::BI__sync_lock_test_and_set_1: 972 case Builtin::BI__sync_lock_test_and_set_2: 973 case Builtin::BI__sync_lock_test_and_set_4: 974 case Builtin::BI__sync_lock_test_and_set_8: 975 case Builtin::BI__sync_lock_test_and_set_16: 976 return EmitBinaryAtomic(*this, llvm::AtomicRMWInst::Xchg, E); 977 978 case Builtin::BI__sync_lock_release_1: 979 case Builtin::BI__sync_lock_release_2: 980 case Builtin::BI__sync_lock_release_4: 981 case Builtin::BI__sync_lock_release_8: 982 case Builtin::BI__sync_lock_release_16: { 983 Value *Ptr = EmitScalarExpr(E->getArg(0)); 984 QualType ElTy = E->getArg(0)->getType()->getPointeeType(); 985 CharUnits StoreSize = getContext().getTypeSizeInChars(ElTy); 986 llvm::Type *ITy = llvm::IntegerType::get(getLLVMContext(), 987 StoreSize.getQuantity() * 8); 988 Ptr = Builder.CreateBitCast(Ptr, ITy->getPointerTo()); 989 llvm::StoreInst *Store = 990 Builder.CreateStore(llvm::Constant::getNullValue(ITy), Ptr); 991 Store->setAlignment(StoreSize.getQuantity()); 992 Store->setAtomic(llvm::Release); 993 return RValue::get(0); 994 } 995 996 case Builtin::BI__sync_synchronize: { 997 // We assume this is supposed to correspond to a C++0x-style 998 // sequentially-consistent fence (i.e. this is only usable for 999 // synchonization, not device I/O or anything like that). This intrinsic 1000 // is really badly designed in the sense that in theory, there isn't 1001 // any way to safely use it... but in practice, it mostly works 1002 // to use it with non-atomic loads and stores to get acquire/release 1003 // semantics. 1004 Builder.CreateFence(llvm::SequentiallyConsistent); 1005 return RValue::get(0); 1006 } 1007 1008 case Builtin::BI__c11_atomic_is_lock_free: 1009 case Builtin::BI__atomic_is_lock_free: { 1010 // Call "bool __atomic_is_lock_free(size_t size, void *ptr)". For the 1011 // __c11 builtin, ptr is 0 (indicating a properly-aligned object), since 1012 // _Atomic(T) is always properly-aligned. 1013 const char *LibCallName = "__atomic_is_lock_free"; 1014 CallArgList Args; 1015 Args.add(RValue::get(EmitScalarExpr(E->getArg(0))), 1016 getContext().getSizeType()); 1017 if (BuiltinID == Builtin::BI__atomic_is_lock_free) 1018 Args.add(RValue::get(EmitScalarExpr(E->getArg(1))), 1019 getContext().VoidPtrTy); 1020 else 1021 Args.add(RValue::get(llvm::Constant::getNullValue(VoidPtrTy)), 1022 getContext().VoidPtrTy); 1023 const CGFunctionInfo &FuncInfo = 1024 CGM.getTypes().arrangeFreeFunctionCall(E->getType(), Args, 1025 FunctionType::ExtInfo(), 1026 RequiredArgs::All); 1027 llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FuncInfo); 1028 llvm::Constant *Func = CGM.CreateRuntimeFunction(FTy, LibCallName); 1029 return EmitCall(FuncInfo, Func, ReturnValueSlot(), Args); 1030 } 1031 1032 case Builtin::BI__atomic_test_and_set: { 1033 // Look at the argument type to determine whether this is a volatile 1034 // operation. The parameter type is always volatile. 1035 QualType PtrTy = E->getArg(0)->IgnoreImpCasts()->getType(); 1036 bool Volatile = 1037 PtrTy->castAs<PointerType>()->getPointeeType().isVolatileQualified(); 1038 1039 Value *Ptr = EmitScalarExpr(E->getArg(0)); 1040 unsigned AddrSpace = 1041 cast<llvm::PointerType>(Ptr->getType())->getAddressSpace(); 1042 Ptr = Builder.CreateBitCast(Ptr, Int8Ty->getPointerTo(AddrSpace)); 1043 Value *NewVal = Builder.getInt8(1); 1044 Value *Order = EmitScalarExpr(E->getArg(1)); 1045 if (isa<llvm::ConstantInt>(Order)) { 1046 int ord = cast<llvm::ConstantInt>(Order)->getZExtValue(); 1047 AtomicRMWInst *Result = 0; 1048 switch (ord) { 1049 case 0: // memory_order_relaxed 1050 default: // invalid order 1051 Result = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1052 Ptr, NewVal, 1053 llvm::Monotonic); 1054 break; 1055 case 1: // memory_order_consume 1056 case 2: // memory_order_acquire 1057 Result = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1058 Ptr, NewVal, 1059 llvm::Acquire); 1060 break; 1061 case 3: // memory_order_release 1062 Result = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1063 Ptr, NewVal, 1064 llvm::Release); 1065 break; 1066 case 4: // memory_order_acq_rel 1067 Result = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1068 Ptr, NewVal, 1069 llvm::AcquireRelease); 1070 break; 1071 case 5: // memory_order_seq_cst 1072 Result = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1073 Ptr, NewVal, 1074 llvm::SequentiallyConsistent); 1075 break; 1076 } 1077 Result->setVolatile(Volatile); 1078 return RValue::get(Builder.CreateIsNotNull(Result, "tobool")); 1079 } 1080 1081 llvm::BasicBlock *ContBB = createBasicBlock("atomic.continue", CurFn); 1082 1083 llvm::BasicBlock *BBs[5] = { 1084 createBasicBlock("monotonic", CurFn), 1085 createBasicBlock("acquire", CurFn), 1086 createBasicBlock("release", CurFn), 1087 createBasicBlock("acqrel", CurFn), 1088 createBasicBlock("seqcst", CurFn) 1089 }; 1090 llvm::AtomicOrdering Orders[5] = { 1091 llvm::Monotonic, llvm::Acquire, llvm::Release, 1092 llvm::AcquireRelease, llvm::SequentiallyConsistent 1093 }; 1094 1095 Order = Builder.CreateIntCast(Order, Builder.getInt32Ty(), false); 1096 llvm::SwitchInst *SI = Builder.CreateSwitch(Order, BBs[0]); 1097 1098 Builder.SetInsertPoint(ContBB); 1099 PHINode *Result = Builder.CreatePHI(Int8Ty, 5, "was_set"); 1100 1101 for (unsigned i = 0; i < 5; ++i) { 1102 Builder.SetInsertPoint(BBs[i]); 1103 AtomicRMWInst *RMW = Builder.CreateAtomicRMW(llvm::AtomicRMWInst::Xchg, 1104 Ptr, NewVal, Orders[i]); 1105 RMW->setVolatile(Volatile); 1106 Result->addIncoming(RMW, BBs[i]); 1107 Builder.CreateBr(ContBB); 1108 } 1109 1110 SI->addCase(Builder.getInt32(0), BBs[0]); 1111 SI->addCase(Builder.getInt32(1), BBs[1]); 1112 SI->addCase(Builder.getInt32(2), BBs[1]); 1113 SI->addCase(Builder.getInt32(3), BBs[2]); 1114 SI->addCase(Builder.getInt32(4), BBs[3]); 1115 SI->addCase(Builder.getInt32(5), BBs[4]); 1116 1117 Builder.SetInsertPoint(ContBB); 1118 return RValue::get(Builder.CreateIsNotNull(Result, "tobool")); 1119 } 1120 1121 case Builtin::BI__atomic_clear: { 1122 QualType PtrTy = E->getArg(0)->IgnoreImpCasts()->getType(); 1123 bool Volatile = 1124 PtrTy->castAs<PointerType>()->getPointeeType().isVolatileQualified(); 1125 1126 Value *Ptr = EmitScalarExpr(E->getArg(0)); 1127 unsigned AddrSpace = 1128 cast<llvm::PointerType>(Ptr->getType())->getAddressSpace(); 1129 Ptr = Builder.CreateBitCast(Ptr, Int8Ty->getPointerTo(AddrSpace)); 1130 Value *NewVal = Builder.getInt8(0); 1131 Value *Order = EmitScalarExpr(E->getArg(1)); 1132 if (isa<llvm::ConstantInt>(Order)) { 1133 int ord = cast<llvm::ConstantInt>(Order)->getZExtValue(); 1134 StoreInst *Store = Builder.CreateStore(NewVal, Ptr, Volatile); 1135 Store->setAlignment(1); 1136 switch (ord) { 1137 case 0: // memory_order_relaxed 1138 default: // invalid order 1139 Store->setOrdering(llvm::Monotonic); 1140 break; 1141 case 3: // memory_order_release 1142 Store->setOrdering(llvm::Release); 1143 break; 1144 case 5: // memory_order_seq_cst 1145 Store->setOrdering(llvm::SequentiallyConsistent); 1146 break; 1147 } 1148 return RValue::get(0); 1149 } 1150 1151 llvm::BasicBlock *ContBB = createBasicBlock("atomic.continue", CurFn); 1152 1153 llvm::BasicBlock *BBs[3] = { 1154 createBasicBlock("monotonic", CurFn), 1155 createBasicBlock("release", CurFn), 1156 createBasicBlock("seqcst", CurFn) 1157 }; 1158 llvm::AtomicOrdering Orders[3] = { 1159 llvm::Monotonic, llvm::Release, llvm::SequentiallyConsistent 1160 }; 1161 1162 Order = Builder.CreateIntCast(Order, Builder.getInt32Ty(), false); 1163 llvm::SwitchInst *SI = Builder.CreateSwitch(Order, BBs[0]); 1164 1165 for (unsigned i = 0; i < 3; ++i) { 1166 Builder.SetInsertPoint(BBs[i]); 1167 StoreInst *Store = Builder.CreateStore(NewVal, Ptr, Volatile); 1168 Store->setAlignment(1); 1169 Store->setOrdering(Orders[i]); 1170 Builder.CreateBr(ContBB); 1171 } 1172 1173 SI->addCase(Builder.getInt32(0), BBs[0]); 1174 SI->addCase(Builder.getInt32(3), BBs[1]); 1175 SI->addCase(Builder.getInt32(5), BBs[2]); 1176 1177 Builder.SetInsertPoint(ContBB); 1178 return RValue::get(0); 1179 } 1180 1181 case Builtin::BI__atomic_thread_fence: 1182 case Builtin::BI__atomic_signal_fence: 1183 case Builtin::BI__c11_atomic_thread_fence: 1184 case Builtin::BI__c11_atomic_signal_fence: { 1185 llvm::SynchronizationScope Scope; 1186 if (BuiltinID == Builtin::BI__atomic_signal_fence || 1187 BuiltinID == Builtin::BI__c11_atomic_signal_fence) 1188 Scope = llvm::SingleThread; 1189 else 1190 Scope = llvm::CrossThread; 1191 Value *Order = EmitScalarExpr(E->getArg(0)); 1192 if (isa<llvm::ConstantInt>(Order)) { 1193 int ord = cast<llvm::ConstantInt>(Order)->getZExtValue(); 1194 switch (ord) { 1195 case 0: // memory_order_relaxed 1196 default: // invalid order 1197 break; 1198 case 1: // memory_order_consume 1199 case 2: // memory_order_acquire 1200 Builder.CreateFence(llvm::Acquire, Scope); 1201 break; 1202 case 3: // memory_order_release 1203 Builder.CreateFence(llvm::Release, Scope); 1204 break; 1205 case 4: // memory_order_acq_rel 1206 Builder.CreateFence(llvm::AcquireRelease, Scope); 1207 break; 1208 case 5: // memory_order_seq_cst 1209 Builder.CreateFence(llvm::SequentiallyConsistent, Scope); 1210 break; 1211 } 1212 return RValue::get(0); 1213 } 1214 1215 llvm::BasicBlock *AcquireBB, *ReleaseBB, *AcqRelBB, *SeqCstBB; 1216 AcquireBB = createBasicBlock("acquire", CurFn); 1217 ReleaseBB = createBasicBlock("release", CurFn); 1218 AcqRelBB = createBasicBlock("acqrel", CurFn); 1219 SeqCstBB = createBasicBlock("seqcst", CurFn); 1220 llvm::BasicBlock *ContBB = createBasicBlock("atomic.continue", CurFn); 1221 1222 Order = Builder.CreateIntCast(Order, Builder.getInt32Ty(), false); 1223 llvm::SwitchInst *SI = Builder.CreateSwitch(Order, ContBB); 1224 1225 Builder.SetInsertPoint(AcquireBB); 1226 Builder.CreateFence(llvm::Acquire, Scope); 1227 Builder.CreateBr(ContBB); 1228 SI->addCase(Builder.getInt32(1), AcquireBB); 1229 SI->addCase(Builder.getInt32(2), AcquireBB); 1230 1231 Builder.SetInsertPoint(ReleaseBB); 1232 Builder.CreateFence(llvm::Release, Scope); 1233 Builder.CreateBr(ContBB); 1234 SI->addCase(Builder.getInt32(3), ReleaseBB); 1235 1236 Builder.SetInsertPoint(AcqRelBB); 1237 Builder.CreateFence(llvm::AcquireRelease, Scope); 1238 Builder.CreateBr(ContBB); 1239 SI->addCase(Builder.getInt32(4), AcqRelBB); 1240 1241 Builder.SetInsertPoint(SeqCstBB); 1242 Builder.CreateFence(llvm::SequentiallyConsistent, Scope); 1243 Builder.CreateBr(ContBB); 1244 SI->addCase(Builder.getInt32(5), SeqCstBB); 1245 1246 Builder.SetInsertPoint(ContBB); 1247 return RValue::get(0); 1248 } 1249 1250 // Library functions with special handling. 1251 case Builtin::BIsqrt: 1252 case Builtin::BIsqrtf: 1253 case Builtin::BIsqrtl: { 1254 // TODO: there is currently no set of optimizer flags 1255 // sufficient for us to rewrite sqrt to @llvm.sqrt. 1256 // -fmath-errno=0 is not good enough; we need finiteness. 1257 // We could probably precondition the call with an ult 1258 // against 0, but is that worth the complexity? 1259 break; 1260 } 1261 1262 case Builtin::BIpow: 1263 case Builtin::BIpowf: 1264 case Builtin::BIpowl: { 1265 // Rewrite sqrt to intrinsic if allowed. 1266 if (!FD->hasAttr<ConstAttr>()) 1267 break; 1268 Value *Base = EmitScalarExpr(E->getArg(0)); 1269 Value *Exponent = EmitScalarExpr(E->getArg(1)); 1270 llvm::Type *ArgType = Base->getType(); 1271 Value *F = CGM.getIntrinsic(Intrinsic::pow, ArgType); 1272 return RValue::get(Builder.CreateCall2(F, Base, Exponent)); 1273 } 1274 1275 case Builtin::BIfma: 1276 case Builtin::BIfmaf: 1277 case Builtin::BIfmal: 1278 case Builtin::BI__builtin_fma: 1279 case Builtin::BI__builtin_fmaf: 1280 case Builtin::BI__builtin_fmal: { 1281 // Rewrite fma to intrinsic. 1282 Value *FirstArg = EmitScalarExpr(E->getArg(0)); 1283 llvm::Type *ArgType = FirstArg->getType(); 1284 Value *F = CGM.getIntrinsic(Intrinsic::fma, ArgType); 1285 return RValue::get(Builder.CreateCall3(F, FirstArg, 1286 EmitScalarExpr(E->getArg(1)), 1287 EmitScalarExpr(E->getArg(2)))); 1288 } 1289 1290 case Builtin::BI__builtin_signbit: 1291 case Builtin::BI__builtin_signbitf: 1292 case Builtin::BI__builtin_signbitl: { 1293 LLVMContext &C = CGM.getLLVMContext(); 1294 1295 Value *Arg = EmitScalarExpr(E->getArg(0)); 1296 llvm::Type *ArgTy = Arg->getType(); 1297 if (ArgTy->isPPC_FP128Ty()) 1298 break; // FIXME: I'm not sure what the right implementation is here. 1299 int ArgWidth = ArgTy->getPrimitiveSizeInBits(); 1300 llvm::Type *ArgIntTy = llvm::IntegerType::get(C, ArgWidth); 1301 Value *BCArg = Builder.CreateBitCast(Arg, ArgIntTy); 1302 Value *ZeroCmp = llvm::Constant::getNullValue(ArgIntTy); 1303 Value *Result = Builder.CreateICmpSLT(BCArg, ZeroCmp); 1304 return RValue::get(Builder.CreateZExt(Result, ConvertType(E->getType()))); 1305 } 1306 case Builtin::BI__builtin_annotation: { 1307 llvm::Value *AnnVal = EmitScalarExpr(E->getArg(0)); 1308 llvm::Value *F = CGM.getIntrinsic(llvm::Intrinsic::annotation, 1309 AnnVal->getType()); 1310 1311 // Get the annotation string, go through casts. Sema requires this to be a 1312 // non-wide string literal, potentially casted, so the cast<> is safe. 1313 const Expr *AnnotationStrExpr = E->getArg(1)->IgnoreParenCasts(); 1314 llvm::StringRef Str = cast<StringLiteral>(AnnotationStrExpr)->getString(); 1315 return RValue::get(EmitAnnotationCall(F, AnnVal, Str, E->getExprLoc())); 1316 } 1317 } 1318 1319 // If this is an alias for a lib function (e.g. __builtin_sin), emit 1320 // the call using the normal call path, but using the unmangled 1321 // version of the function name. 1322 if (getContext().BuiltinInfo.isLibFunction(BuiltinID)) 1323 return emitLibraryCall(*this, FD, E, 1324 CGM.getBuiltinLibFunction(FD, BuiltinID)); 1325 1326 // If this is a predefined lib function (e.g. malloc), emit the call 1327 // using exactly the normal call path. 1328 if (getContext().BuiltinInfo.isPredefinedLibFunction(BuiltinID)) 1329 return emitLibraryCall(*this, FD, E, EmitScalarExpr(E->getCallee())); 1330 1331 // See if we have a target specific intrinsic. 1332 const char *Name = getContext().BuiltinInfo.GetName(BuiltinID); 1333 Intrinsic::ID IntrinsicID = Intrinsic::not_intrinsic; 1334 if (const char *Prefix = 1335 llvm::Triple::getArchTypePrefix(Target.getTriple().getArch())) 1336 IntrinsicID = Intrinsic::getIntrinsicForGCCBuiltin(Prefix, Name); 1337 1338 if (IntrinsicID != Intrinsic::not_intrinsic) { 1339 SmallVector<Value*, 16> Args; 1340 1341 // Find out if any arguments are required to be integer constant 1342 // expressions. 1343 unsigned ICEArguments = 0; 1344 ASTContext::GetBuiltinTypeError Error; 1345 getContext().GetBuiltinType(BuiltinID, Error, &ICEArguments); 1346 assert(Error == ASTContext::GE_None && "Should not codegen an error"); 1347 1348 Function *F = CGM.getIntrinsic(IntrinsicID); 1349 llvm::FunctionType *FTy = F->getFunctionType(); 1350 1351 for (unsigned i = 0, e = E->getNumArgs(); i != e; ++i) { 1352 Value *ArgValue; 1353 // If this is a normal argument, just emit it as a scalar. 1354 if ((ICEArguments & (1 << i)) == 0) { 1355 ArgValue = EmitScalarExpr(E->getArg(i)); 1356 } else { 1357 // If this is required to be a constant, constant fold it so that we 1358 // know that the generated intrinsic gets a ConstantInt. 1359 llvm::APSInt Result; 1360 bool IsConst = E->getArg(i)->isIntegerConstantExpr(Result,getContext()); 1361 assert(IsConst && "Constant arg isn't actually constant?"); 1362 (void)IsConst; 1363 ArgValue = llvm::ConstantInt::get(getLLVMContext(), Result); 1364 } 1365 1366 // If the intrinsic arg type is different from the builtin arg type 1367 // we need to do a bit cast. 1368 llvm::Type *PTy = FTy->getParamType(i); 1369 if (PTy != ArgValue->getType()) { 1370 assert(PTy->canLosslesslyBitCastTo(FTy->getParamType(i)) && 1371 "Must be able to losslessly bit cast to param"); 1372 ArgValue = Builder.CreateBitCast(ArgValue, PTy); 1373 } 1374 1375 Args.push_back(ArgValue); 1376 } 1377 1378 Value *V = Builder.CreateCall(F, Args); 1379 QualType BuiltinRetType = E->getType(); 1380 1381 llvm::Type *RetTy = VoidTy; 1382 if (!BuiltinRetType->isVoidType()) 1383 RetTy = ConvertType(BuiltinRetType); 1384 1385 if (RetTy != V->getType()) { 1386 assert(V->getType()->canLosslesslyBitCastTo(RetTy) && 1387 "Must be able to losslessly bit cast result type"); 1388 V = Builder.CreateBitCast(V, RetTy); 1389 } 1390 1391 return RValue::get(V); 1392 } 1393 1394 // See if we have a target specific builtin that needs to be lowered. 1395 if (Value *V = EmitTargetBuiltinExpr(BuiltinID, E)) 1396 return RValue::get(V); 1397 1398 ErrorUnsupported(E, "builtin function"); 1399 1400 // Unknown builtin, for now just dump it out and return undef. 1401 if (hasAggregateLLVMType(E->getType())) 1402 return RValue::getAggregate(CreateMemTemp(E->getType())); 1403 return RValue::get(llvm::UndefValue::get(ConvertType(E->getType()))); 1404 } 1405 1406 Value *CodeGenFunction::EmitTargetBuiltinExpr(unsigned BuiltinID, 1407 const CallExpr *E) { 1408 switch (Target.getTriple().getArch()) { 1409 case llvm::Triple::arm: 1410 case llvm::Triple::thumb: 1411 return EmitARMBuiltinExpr(BuiltinID, E); 1412 case llvm::Triple::x86: 1413 case llvm::Triple::x86_64: 1414 return EmitX86BuiltinExpr(BuiltinID, E); 1415 case llvm::Triple::ppc: 1416 case llvm::Triple::ppc64: 1417 return EmitPPCBuiltinExpr(BuiltinID, E); 1418 default: 1419 return 0; 1420 } 1421 } 1422 1423 static llvm::VectorType *GetNeonType(CodeGenFunction *CGF, 1424 NeonTypeFlags TypeFlags) { 1425 int IsQuad = TypeFlags.isQuad(); 1426 switch (TypeFlags.getEltType()) { 1427 case NeonTypeFlags::Int8: 1428 case NeonTypeFlags::Poly8: 1429 return llvm::VectorType::get(CGF->Int8Ty, 8 << IsQuad); 1430 case NeonTypeFlags::Int16: 1431 case NeonTypeFlags::Poly16: 1432 case NeonTypeFlags::Float16: 1433 return llvm::VectorType::get(CGF->Int16Ty, 4 << IsQuad); 1434 case NeonTypeFlags::Int32: 1435 return llvm::VectorType::get(CGF->Int32Ty, 2 << IsQuad); 1436 case NeonTypeFlags::Int64: 1437 return llvm::VectorType::get(CGF->Int64Ty, 1 << IsQuad); 1438 case NeonTypeFlags::Float32: 1439 return llvm::VectorType::get(CGF->FloatTy, 2 << IsQuad); 1440 } 1441 llvm_unreachable("Invalid NeonTypeFlags element type!"); 1442 } 1443 1444 Value *CodeGenFunction::EmitNeonSplat(Value *V, Constant *C) { 1445 unsigned nElts = cast<llvm::VectorType>(V->getType())->getNumElements(); 1446 Value* SV = llvm::ConstantVector::getSplat(nElts, C); 1447 return Builder.CreateShuffleVector(V, V, SV, "lane"); 1448 } 1449 1450 Value *CodeGenFunction::EmitNeonCall(Function *F, SmallVectorImpl<Value*> &Ops, 1451 const char *name, 1452 unsigned shift, bool rightshift) { 1453 unsigned j = 0; 1454 for (Function::const_arg_iterator ai = F->arg_begin(), ae = F->arg_end(); 1455 ai != ae; ++ai, ++j) 1456 if (shift > 0 && shift == j) 1457 Ops[j] = EmitNeonShiftVector(Ops[j], ai->getType(), rightshift); 1458 else 1459 Ops[j] = Builder.CreateBitCast(Ops[j], ai->getType(), name); 1460 1461 return Builder.CreateCall(F, Ops, name); 1462 } 1463 1464 Value *CodeGenFunction::EmitNeonShiftVector(Value *V, llvm::Type *Ty, 1465 bool neg) { 1466 int SV = cast<ConstantInt>(V)->getSExtValue(); 1467 1468 llvm::VectorType *VTy = cast<llvm::VectorType>(Ty); 1469 llvm::Constant *C = ConstantInt::get(VTy->getElementType(), neg ? -SV : SV); 1470 return llvm::ConstantVector::getSplat(VTy->getNumElements(), C); 1471 } 1472 1473 /// GetPointeeAlignment - Given an expression with a pointer type, find the 1474 /// alignment of the type referenced by the pointer. Skip over implicit 1475 /// casts. 1476 std::pair<llvm::Value*, unsigned> 1477 CodeGenFunction::EmitPointerWithAlignment(const Expr *Addr) { 1478 assert(Addr->getType()->isPointerType()); 1479 Addr = Addr->IgnoreParens(); 1480 if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Addr)) { 1481 if ((ICE->getCastKind() == CK_BitCast || ICE->getCastKind() == CK_NoOp) && 1482 ICE->getSubExpr()->getType()->isPointerType()) { 1483 std::pair<llvm::Value*, unsigned> Ptr = 1484 EmitPointerWithAlignment(ICE->getSubExpr()); 1485 Ptr.first = Builder.CreateBitCast(Ptr.first, 1486 ConvertType(Addr->getType())); 1487 return Ptr; 1488 } else if (ICE->getCastKind() == CK_ArrayToPointerDecay) { 1489 LValue LV = EmitLValue(ICE->getSubExpr()); 1490 unsigned Align = LV.getAlignment().getQuantity(); 1491 if (!Align) { 1492 // FIXME: Once LValues are fixed to always set alignment, 1493 // zap this code. 1494 QualType PtTy = ICE->getSubExpr()->getType(); 1495 if (!PtTy->isIncompleteType()) 1496 Align = getContext().getTypeAlignInChars(PtTy).getQuantity(); 1497 else 1498 Align = 1; 1499 } 1500 return std::make_pair(LV.getAddress(), Align); 1501 } 1502 } 1503 if (const UnaryOperator *UO = dyn_cast<UnaryOperator>(Addr)) { 1504 if (UO->getOpcode() == UO_AddrOf) { 1505 LValue LV = EmitLValue(UO->getSubExpr()); 1506 unsigned Align = LV.getAlignment().getQuantity(); 1507 if (!Align) { 1508 // FIXME: Once LValues are fixed to always set alignment, 1509 // zap this code. 1510 QualType PtTy = UO->getSubExpr()->getType(); 1511 if (!PtTy->isIncompleteType()) 1512 Align = getContext().getTypeAlignInChars(PtTy).getQuantity(); 1513 else 1514 Align = 1; 1515 } 1516 return std::make_pair(LV.getAddress(), Align); 1517 } 1518 } 1519 1520 unsigned Align = 1; 1521 QualType PtTy = Addr->getType()->getPointeeType(); 1522 if (!PtTy->isIncompleteType()) 1523 Align = getContext().getTypeAlignInChars(PtTy).getQuantity(); 1524 1525 return std::make_pair(EmitScalarExpr(Addr), Align); 1526 } 1527 1528 Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID, 1529 const CallExpr *E) { 1530 if (BuiltinID == ARM::BI__clear_cache) { 1531 const FunctionDecl *FD = E->getDirectCallee(); 1532 // Oddly people write this call without args on occasion and gcc accepts 1533 // it - it's also marked as varargs in the description file. 1534 SmallVector<Value*, 2> Ops; 1535 for (unsigned i = 0; i < E->getNumArgs(); i++) 1536 Ops.push_back(EmitScalarExpr(E->getArg(i))); 1537 llvm::Type *Ty = CGM.getTypes().ConvertType(FD->getType()); 1538 llvm::FunctionType *FTy = cast<llvm::FunctionType>(Ty); 1539 StringRef Name = FD->getName(); 1540 return Builder.CreateCall(CGM.CreateRuntimeFunction(FTy, Name), Ops); 1541 } 1542 1543 if (BuiltinID == ARM::BI__builtin_arm_ldrexd) { 1544 Function *F = CGM.getIntrinsic(Intrinsic::arm_ldrexd); 1545 1546 Value *LdPtr = EmitScalarExpr(E->getArg(0)); 1547 Value *Val = Builder.CreateCall(F, LdPtr, "ldrexd"); 1548 1549 Value *Val0 = Builder.CreateExtractValue(Val, 1); 1550 Value *Val1 = Builder.CreateExtractValue(Val, 0); 1551 Val0 = Builder.CreateZExt(Val0, Int64Ty); 1552 Val1 = Builder.CreateZExt(Val1, Int64Ty); 1553 1554 Value *ShiftCst = llvm::ConstantInt::get(Int64Ty, 32); 1555 Val = Builder.CreateShl(Val0, ShiftCst, "shl", true /* nuw */); 1556 return Builder.CreateOr(Val, Val1); 1557 } 1558 1559 if (BuiltinID == ARM::BI__builtin_arm_strexd) { 1560 Function *F = CGM.getIntrinsic(Intrinsic::arm_strexd); 1561 llvm::Type *STy = llvm::StructType::get(Int32Ty, Int32Ty, NULL); 1562 1563 Value *One = llvm::ConstantInt::get(Int32Ty, 1); 1564 Value *Tmp = Builder.CreateAlloca(Int64Ty, One); 1565 Value *Val = EmitScalarExpr(E->getArg(0)); 1566 Builder.CreateStore(Val, Tmp); 1567 1568 Value *LdPtr = Builder.CreateBitCast(Tmp,llvm::PointerType::getUnqual(STy)); 1569 Val = Builder.CreateLoad(LdPtr); 1570 1571 Value *Arg0 = Builder.CreateExtractValue(Val, 0); 1572 Value *Arg1 = Builder.CreateExtractValue(Val, 1); 1573 Value *StPtr = EmitScalarExpr(E->getArg(1)); 1574 return Builder.CreateCall3(F, Arg0, Arg1, StPtr, "strexd"); 1575 } 1576 1577 SmallVector<Value*, 4> Ops; 1578 llvm::Value *Align = 0; 1579 for (unsigned i = 0, e = E->getNumArgs() - 1; i != e; i++) { 1580 if (i == 0) { 1581 switch (BuiltinID) { 1582 case ARM::BI__builtin_neon_vld1_v: 1583 case ARM::BI__builtin_neon_vld1q_v: 1584 case ARM::BI__builtin_neon_vld1q_lane_v: 1585 case ARM::BI__builtin_neon_vld1_lane_v: 1586 case ARM::BI__builtin_neon_vld1_dup_v: 1587 case ARM::BI__builtin_neon_vld1q_dup_v: 1588 case ARM::BI__builtin_neon_vst1_v: 1589 case ARM::BI__builtin_neon_vst1q_v: 1590 case ARM::BI__builtin_neon_vst1q_lane_v: 1591 case ARM::BI__builtin_neon_vst1_lane_v: 1592 case ARM::BI__builtin_neon_vst2_v: 1593 case ARM::BI__builtin_neon_vst2q_v: 1594 case ARM::BI__builtin_neon_vst2_lane_v: 1595 case ARM::BI__builtin_neon_vst2q_lane_v: 1596 case ARM::BI__builtin_neon_vst3_v: 1597 case ARM::BI__builtin_neon_vst3q_v: 1598 case ARM::BI__builtin_neon_vst3_lane_v: 1599 case ARM::BI__builtin_neon_vst3q_lane_v: 1600 case ARM::BI__builtin_neon_vst4_v: 1601 case ARM::BI__builtin_neon_vst4q_v: 1602 case ARM::BI__builtin_neon_vst4_lane_v: 1603 case ARM::BI__builtin_neon_vst4q_lane_v: 1604 // Get the alignment for the argument in addition to the value; 1605 // we'll use it later. 1606 std::pair<llvm::Value*, unsigned> Src = 1607 EmitPointerWithAlignment(E->getArg(0)); 1608 Ops.push_back(Src.first); 1609 Align = Builder.getInt32(Src.second); 1610 continue; 1611 } 1612 } 1613 if (i == 1) { 1614 switch (BuiltinID) { 1615 case ARM::BI__builtin_neon_vld2_v: 1616 case ARM::BI__builtin_neon_vld2q_v: 1617 case ARM::BI__builtin_neon_vld3_v: 1618 case ARM::BI__builtin_neon_vld3q_v: 1619 case ARM::BI__builtin_neon_vld4_v: 1620 case ARM::BI__builtin_neon_vld4q_v: 1621 case ARM::BI__builtin_neon_vld2_lane_v: 1622 case ARM::BI__builtin_neon_vld2q_lane_v: 1623 case ARM::BI__builtin_neon_vld3_lane_v: 1624 case ARM::BI__builtin_neon_vld3q_lane_v: 1625 case ARM::BI__builtin_neon_vld4_lane_v: 1626 case ARM::BI__builtin_neon_vld4q_lane_v: 1627 case ARM::BI__builtin_neon_vld2_dup_v: 1628 case ARM::BI__builtin_neon_vld3_dup_v: 1629 case ARM::BI__builtin_neon_vld4_dup_v: 1630 // Get the alignment for the argument in addition to the value; 1631 // we'll use it later. 1632 std::pair<llvm::Value*, unsigned> Src = 1633 EmitPointerWithAlignment(E->getArg(1)); 1634 Ops.push_back(Src.first); 1635 Align = Builder.getInt32(Src.second); 1636 continue; 1637 } 1638 } 1639 Ops.push_back(EmitScalarExpr(E->getArg(i))); 1640 } 1641 1642 // vget_lane and vset_lane are not overloaded and do not have an extra 1643 // argument that specifies the vector type. 1644 switch (BuiltinID) { 1645 default: break; 1646 case ARM::BI__builtin_neon_vget_lane_i8: 1647 case ARM::BI__builtin_neon_vget_lane_i16: 1648 case ARM::BI__builtin_neon_vget_lane_i32: 1649 case ARM::BI__builtin_neon_vget_lane_i64: 1650 case ARM::BI__builtin_neon_vget_lane_f32: 1651 case ARM::BI__builtin_neon_vgetq_lane_i8: 1652 case ARM::BI__builtin_neon_vgetq_lane_i16: 1653 case ARM::BI__builtin_neon_vgetq_lane_i32: 1654 case ARM::BI__builtin_neon_vgetq_lane_i64: 1655 case ARM::BI__builtin_neon_vgetq_lane_f32: 1656 return Builder.CreateExtractElement(Ops[0], EmitScalarExpr(E->getArg(1)), 1657 "vget_lane"); 1658 case ARM::BI__builtin_neon_vset_lane_i8: 1659 case ARM::BI__builtin_neon_vset_lane_i16: 1660 case ARM::BI__builtin_neon_vset_lane_i32: 1661 case ARM::BI__builtin_neon_vset_lane_i64: 1662 case ARM::BI__builtin_neon_vset_lane_f32: 1663 case ARM::BI__builtin_neon_vsetq_lane_i8: 1664 case ARM::BI__builtin_neon_vsetq_lane_i16: 1665 case ARM::BI__builtin_neon_vsetq_lane_i32: 1666 case ARM::BI__builtin_neon_vsetq_lane_i64: 1667 case ARM::BI__builtin_neon_vsetq_lane_f32: 1668 Ops.push_back(EmitScalarExpr(E->getArg(2))); 1669 return Builder.CreateInsertElement(Ops[1], Ops[0], Ops[2], "vset_lane"); 1670 } 1671 1672 // Get the last argument, which specifies the vector type. 1673 llvm::APSInt Result; 1674 const Expr *Arg = E->getArg(E->getNumArgs()-1); 1675 if (!Arg->isIntegerConstantExpr(Result, getContext())) 1676 return 0; 1677 1678 if (BuiltinID == ARM::BI__builtin_arm_vcvtr_f || 1679 BuiltinID == ARM::BI__builtin_arm_vcvtr_d) { 1680 // Determine the overloaded type of this builtin. 1681 llvm::Type *Ty; 1682 if (BuiltinID == ARM::BI__builtin_arm_vcvtr_f) 1683 Ty = FloatTy; 1684 else 1685 Ty = DoubleTy; 1686 1687 // Determine whether this is an unsigned conversion or not. 1688 bool usgn = Result.getZExtValue() == 1; 1689 unsigned Int = usgn ? Intrinsic::arm_vcvtru : Intrinsic::arm_vcvtr; 1690 1691 // Call the appropriate intrinsic. 1692 Function *F = CGM.getIntrinsic(Int, Ty); 1693 return Builder.CreateCall(F, Ops, "vcvtr"); 1694 } 1695 1696 // Determine the type of this overloaded NEON intrinsic. 1697 NeonTypeFlags Type(Result.getZExtValue()); 1698 bool usgn = Type.isUnsigned(); 1699 bool quad = Type.isQuad(); 1700 bool rightShift = false; 1701 1702 llvm::VectorType *VTy = GetNeonType(this, Type); 1703 llvm::Type *Ty = VTy; 1704 if (!Ty) 1705 return 0; 1706 1707 unsigned Int; 1708 switch (BuiltinID) { 1709 default: return 0; 1710 case ARM::BI__builtin_neon_vabd_v: 1711 case ARM::BI__builtin_neon_vabdq_v: 1712 Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds; 1713 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vabd"); 1714 case ARM::BI__builtin_neon_vabs_v: 1715 case ARM::BI__builtin_neon_vabsq_v: 1716 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vabs, Ty), 1717 Ops, "vabs"); 1718 case ARM::BI__builtin_neon_vaddhn_v: 1719 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vaddhn, Ty), 1720 Ops, "vaddhn"); 1721 case ARM::BI__builtin_neon_vcale_v: 1722 std::swap(Ops[0], Ops[1]); 1723 case ARM::BI__builtin_neon_vcage_v: { 1724 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vacged); 1725 return EmitNeonCall(F, Ops, "vcage"); 1726 } 1727 case ARM::BI__builtin_neon_vcaleq_v: 1728 std::swap(Ops[0], Ops[1]); 1729 case ARM::BI__builtin_neon_vcageq_v: { 1730 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vacgeq); 1731 return EmitNeonCall(F, Ops, "vcage"); 1732 } 1733 case ARM::BI__builtin_neon_vcalt_v: 1734 std::swap(Ops[0], Ops[1]); 1735 case ARM::BI__builtin_neon_vcagt_v: { 1736 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vacgtd); 1737 return EmitNeonCall(F, Ops, "vcagt"); 1738 } 1739 case ARM::BI__builtin_neon_vcaltq_v: 1740 std::swap(Ops[0], Ops[1]); 1741 case ARM::BI__builtin_neon_vcagtq_v: { 1742 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vacgtq); 1743 return EmitNeonCall(F, Ops, "vcagt"); 1744 } 1745 case ARM::BI__builtin_neon_vcls_v: 1746 case ARM::BI__builtin_neon_vclsq_v: { 1747 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcls, Ty); 1748 return EmitNeonCall(F, Ops, "vcls"); 1749 } 1750 case ARM::BI__builtin_neon_vclz_v: 1751 case ARM::BI__builtin_neon_vclzq_v: { 1752 // Generate target-independent intrinsic; also need to add second argument 1753 // for whether or not clz of zero is undefined; on ARM it isn't. 1754 Function *F = CGM.getIntrinsic(Intrinsic::ctlz, Ty); 1755 Ops.push_back(Builder.getInt1(Target.isCLZForZeroUndef())); 1756 return EmitNeonCall(F, Ops, "vclz"); 1757 } 1758 case ARM::BI__builtin_neon_vcnt_v: 1759 case ARM::BI__builtin_neon_vcntq_v: { 1760 // generate target-independent intrinsic 1761 Function *F = CGM.getIntrinsic(Intrinsic::ctpop, Ty); 1762 return EmitNeonCall(F, Ops, "vctpop"); 1763 } 1764 case ARM::BI__builtin_neon_vcvt_f16_v: { 1765 assert(Type.getEltType() == NeonTypeFlags::Float16 && !quad && 1766 "unexpected vcvt_f16_v builtin"); 1767 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcvtfp2hf); 1768 return EmitNeonCall(F, Ops, "vcvt"); 1769 } 1770 case ARM::BI__builtin_neon_vcvt_f32_f16: { 1771 assert(Type.getEltType() == NeonTypeFlags::Float16 && !quad && 1772 "unexpected vcvt_f32_f16 builtin"); 1773 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcvthf2fp); 1774 return EmitNeonCall(F, Ops, "vcvt"); 1775 } 1776 case ARM::BI__builtin_neon_vcvt_f32_v: 1777 case ARM::BI__builtin_neon_vcvtq_f32_v: 1778 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1779 Ty = GetNeonType(this, NeonTypeFlags(NeonTypeFlags::Float32, false, quad)); 1780 return usgn ? Builder.CreateUIToFP(Ops[0], Ty, "vcvt") 1781 : Builder.CreateSIToFP(Ops[0], Ty, "vcvt"); 1782 case ARM::BI__builtin_neon_vcvt_s32_v: 1783 case ARM::BI__builtin_neon_vcvt_u32_v: 1784 case ARM::BI__builtin_neon_vcvtq_s32_v: 1785 case ARM::BI__builtin_neon_vcvtq_u32_v: { 1786 llvm::Type *FloatTy = 1787 GetNeonType(this, NeonTypeFlags(NeonTypeFlags::Float32, false, quad)); 1788 Ops[0] = Builder.CreateBitCast(Ops[0], FloatTy); 1789 return usgn ? Builder.CreateFPToUI(Ops[0], Ty, "vcvt") 1790 : Builder.CreateFPToSI(Ops[0], Ty, "vcvt"); 1791 } 1792 case ARM::BI__builtin_neon_vcvt_n_f32_v: 1793 case ARM::BI__builtin_neon_vcvtq_n_f32_v: { 1794 llvm::Type *FloatTy = 1795 GetNeonType(this, NeonTypeFlags(NeonTypeFlags::Float32, false, quad)); 1796 llvm::Type *Tys[2] = { FloatTy, Ty }; 1797 Int = usgn ? Intrinsic::arm_neon_vcvtfxu2fp 1798 : Intrinsic::arm_neon_vcvtfxs2fp; 1799 Function *F = CGM.getIntrinsic(Int, Tys); 1800 return EmitNeonCall(F, Ops, "vcvt_n"); 1801 } 1802 case ARM::BI__builtin_neon_vcvt_n_s32_v: 1803 case ARM::BI__builtin_neon_vcvt_n_u32_v: 1804 case ARM::BI__builtin_neon_vcvtq_n_s32_v: 1805 case ARM::BI__builtin_neon_vcvtq_n_u32_v: { 1806 llvm::Type *FloatTy = 1807 GetNeonType(this, NeonTypeFlags(NeonTypeFlags::Float32, false, quad)); 1808 llvm::Type *Tys[2] = { Ty, FloatTy }; 1809 Int = usgn ? Intrinsic::arm_neon_vcvtfp2fxu 1810 : Intrinsic::arm_neon_vcvtfp2fxs; 1811 Function *F = CGM.getIntrinsic(Int, Tys); 1812 return EmitNeonCall(F, Ops, "vcvt_n"); 1813 } 1814 case ARM::BI__builtin_neon_vext_v: 1815 case ARM::BI__builtin_neon_vextq_v: { 1816 int CV = cast<ConstantInt>(Ops[2])->getSExtValue(); 1817 SmallVector<Constant*, 16> Indices; 1818 for (unsigned i = 0, e = VTy->getNumElements(); i != e; ++i) 1819 Indices.push_back(ConstantInt::get(Int32Ty, i+CV)); 1820 1821 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1822 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 1823 Value *SV = llvm::ConstantVector::get(Indices); 1824 return Builder.CreateShuffleVector(Ops[0], Ops[1], SV, "vext"); 1825 } 1826 case ARM::BI__builtin_neon_vhadd_v: 1827 case ARM::BI__builtin_neon_vhaddq_v: 1828 Int = usgn ? Intrinsic::arm_neon_vhaddu : Intrinsic::arm_neon_vhadds; 1829 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vhadd"); 1830 case ARM::BI__builtin_neon_vhsub_v: 1831 case ARM::BI__builtin_neon_vhsubq_v: 1832 Int = usgn ? Intrinsic::arm_neon_vhsubu : Intrinsic::arm_neon_vhsubs; 1833 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vhsub"); 1834 case ARM::BI__builtin_neon_vld1_v: 1835 case ARM::BI__builtin_neon_vld1q_v: 1836 Ops.push_back(Align); 1837 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vld1, Ty), 1838 Ops, "vld1"); 1839 case ARM::BI__builtin_neon_vld1q_lane_v: 1840 // Handle 64-bit integer elements as a special case. Use shuffles of 1841 // one-element vectors to avoid poor code for i64 in the backend. 1842 if (VTy->getElementType()->isIntegerTy(64)) { 1843 // Extract the other lane. 1844 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 1845 int Lane = cast<ConstantInt>(Ops[2])->getZExtValue(); 1846 Value *SV = llvm::ConstantVector::get(ConstantInt::get(Int32Ty, 1-Lane)); 1847 Ops[1] = Builder.CreateShuffleVector(Ops[1], Ops[1], SV); 1848 // Load the value as a one-element vector. 1849 Ty = llvm::VectorType::get(VTy->getElementType(), 1); 1850 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld1, Ty); 1851 Value *Ld = Builder.CreateCall2(F, Ops[0], Align); 1852 // Combine them. 1853 SmallVector<Constant*, 2> Indices; 1854 Indices.push_back(ConstantInt::get(Int32Ty, 1-Lane)); 1855 Indices.push_back(ConstantInt::get(Int32Ty, Lane)); 1856 SV = llvm::ConstantVector::get(Indices); 1857 return Builder.CreateShuffleVector(Ops[1], Ld, SV, "vld1q_lane"); 1858 } 1859 // fall through 1860 case ARM::BI__builtin_neon_vld1_lane_v: { 1861 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 1862 Ty = llvm::PointerType::getUnqual(VTy->getElementType()); 1863 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1864 LoadInst *Ld = Builder.CreateLoad(Ops[0]); 1865 Ld->setAlignment(cast<ConstantInt>(Align)->getZExtValue()); 1866 return Builder.CreateInsertElement(Ops[1], Ld, Ops[2], "vld1_lane"); 1867 } 1868 case ARM::BI__builtin_neon_vld1_dup_v: 1869 case ARM::BI__builtin_neon_vld1q_dup_v: { 1870 Value *V = UndefValue::get(Ty); 1871 Ty = llvm::PointerType::getUnqual(VTy->getElementType()); 1872 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1873 LoadInst *Ld = Builder.CreateLoad(Ops[0]); 1874 Ld->setAlignment(cast<ConstantInt>(Align)->getZExtValue()); 1875 llvm::Constant *CI = ConstantInt::get(Int32Ty, 0); 1876 Ops[0] = Builder.CreateInsertElement(V, Ld, CI); 1877 return EmitNeonSplat(Ops[0], CI); 1878 } 1879 case ARM::BI__builtin_neon_vld2_v: 1880 case ARM::BI__builtin_neon_vld2q_v: { 1881 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld2, Ty); 1882 Ops[1] = Builder.CreateCall2(F, Ops[1], Align, "vld2"); 1883 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1884 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1885 return Builder.CreateStore(Ops[1], Ops[0]); 1886 } 1887 case ARM::BI__builtin_neon_vld3_v: 1888 case ARM::BI__builtin_neon_vld3q_v: { 1889 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld3, Ty); 1890 Ops[1] = Builder.CreateCall2(F, Ops[1], Align, "vld3"); 1891 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1892 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1893 return Builder.CreateStore(Ops[1], Ops[0]); 1894 } 1895 case ARM::BI__builtin_neon_vld4_v: 1896 case ARM::BI__builtin_neon_vld4q_v: { 1897 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld4, Ty); 1898 Ops[1] = Builder.CreateCall2(F, Ops[1], Align, "vld4"); 1899 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1900 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1901 return Builder.CreateStore(Ops[1], Ops[0]); 1902 } 1903 case ARM::BI__builtin_neon_vld2_lane_v: 1904 case ARM::BI__builtin_neon_vld2q_lane_v: { 1905 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld2lane, Ty); 1906 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 1907 Ops[3] = Builder.CreateBitCast(Ops[3], Ty); 1908 Ops.push_back(Align); 1909 Ops[1] = Builder.CreateCall(F, makeArrayRef(Ops).slice(1), "vld2_lane"); 1910 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1911 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1912 return Builder.CreateStore(Ops[1], Ops[0]); 1913 } 1914 case ARM::BI__builtin_neon_vld3_lane_v: 1915 case ARM::BI__builtin_neon_vld3q_lane_v: { 1916 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld3lane, Ty); 1917 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 1918 Ops[3] = Builder.CreateBitCast(Ops[3], Ty); 1919 Ops[4] = Builder.CreateBitCast(Ops[4], Ty); 1920 Ops.push_back(Align); 1921 Ops[1] = Builder.CreateCall(F, makeArrayRef(Ops).slice(1), "vld3_lane"); 1922 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1923 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1924 return Builder.CreateStore(Ops[1], Ops[0]); 1925 } 1926 case ARM::BI__builtin_neon_vld4_lane_v: 1927 case ARM::BI__builtin_neon_vld4q_lane_v: { 1928 Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vld4lane, Ty); 1929 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 1930 Ops[3] = Builder.CreateBitCast(Ops[3], Ty); 1931 Ops[4] = Builder.CreateBitCast(Ops[4], Ty); 1932 Ops[5] = Builder.CreateBitCast(Ops[5], Ty); 1933 Ops.push_back(Align); 1934 Ops[1] = Builder.CreateCall(F, makeArrayRef(Ops).slice(1), "vld3_lane"); 1935 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1936 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1937 return Builder.CreateStore(Ops[1], Ops[0]); 1938 } 1939 case ARM::BI__builtin_neon_vld2_dup_v: 1940 case ARM::BI__builtin_neon_vld3_dup_v: 1941 case ARM::BI__builtin_neon_vld4_dup_v: { 1942 // Handle 64-bit elements as a special-case. There is no "dup" needed. 1943 if (VTy->getElementType()->getPrimitiveSizeInBits() == 64) { 1944 switch (BuiltinID) { 1945 case ARM::BI__builtin_neon_vld2_dup_v: 1946 Int = Intrinsic::arm_neon_vld2; 1947 break; 1948 case ARM::BI__builtin_neon_vld3_dup_v: 1949 Int = Intrinsic::arm_neon_vld3; 1950 break; 1951 case ARM::BI__builtin_neon_vld4_dup_v: 1952 Int = Intrinsic::arm_neon_vld4; 1953 break; 1954 default: llvm_unreachable("unknown vld_dup intrinsic?"); 1955 } 1956 Function *F = CGM.getIntrinsic(Int, Ty); 1957 Ops[1] = Builder.CreateCall2(F, Ops[1], Align, "vld_dup"); 1958 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1959 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1960 return Builder.CreateStore(Ops[1], Ops[0]); 1961 } 1962 switch (BuiltinID) { 1963 case ARM::BI__builtin_neon_vld2_dup_v: 1964 Int = Intrinsic::arm_neon_vld2lane; 1965 break; 1966 case ARM::BI__builtin_neon_vld3_dup_v: 1967 Int = Intrinsic::arm_neon_vld3lane; 1968 break; 1969 case ARM::BI__builtin_neon_vld4_dup_v: 1970 Int = Intrinsic::arm_neon_vld4lane; 1971 break; 1972 default: llvm_unreachable("unknown vld_dup intrinsic?"); 1973 } 1974 Function *F = CGM.getIntrinsic(Int, Ty); 1975 llvm::StructType *STy = cast<llvm::StructType>(F->getReturnType()); 1976 1977 SmallVector<Value*, 6> Args; 1978 Args.push_back(Ops[1]); 1979 Args.append(STy->getNumElements(), UndefValue::get(Ty)); 1980 1981 llvm::Constant *CI = ConstantInt::get(Int32Ty, 0); 1982 Args.push_back(CI); 1983 Args.push_back(Align); 1984 1985 Ops[1] = Builder.CreateCall(F, Args, "vld_dup"); 1986 // splat lane 0 to all elts in each vector of the result. 1987 for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) { 1988 Value *Val = Builder.CreateExtractValue(Ops[1], i); 1989 Value *Elt = Builder.CreateBitCast(Val, Ty); 1990 Elt = EmitNeonSplat(Elt, CI); 1991 Elt = Builder.CreateBitCast(Elt, Val->getType()); 1992 Ops[1] = Builder.CreateInsertValue(Ops[1], Elt, i); 1993 } 1994 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 1995 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 1996 return Builder.CreateStore(Ops[1], Ops[0]); 1997 } 1998 case ARM::BI__builtin_neon_vmax_v: 1999 case ARM::BI__builtin_neon_vmaxq_v: 2000 Int = usgn ? Intrinsic::arm_neon_vmaxu : Intrinsic::arm_neon_vmaxs; 2001 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vmax"); 2002 case ARM::BI__builtin_neon_vmin_v: 2003 case ARM::BI__builtin_neon_vminq_v: 2004 Int = usgn ? Intrinsic::arm_neon_vminu : Intrinsic::arm_neon_vmins; 2005 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vmin"); 2006 case ARM::BI__builtin_neon_vmovl_v: { 2007 llvm::Type *DTy =llvm::VectorType::getTruncatedElementVectorType(VTy); 2008 Ops[0] = Builder.CreateBitCast(Ops[0], DTy); 2009 if (usgn) 2010 return Builder.CreateZExt(Ops[0], Ty, "vmovl"); 2011 return Builder.CreateSExt(Ops[0], Ty, "vmovl"); 2012 } 2013 case ARM::BI__builtin_neon_vmovn_v: { 2014 llvm::Type *QTy = llvm::VectorType::getExtendedElementVectorType(VTy); 2015 Ops[0] = Builder.CreateBitCast(Ops[0], QTy); 2016 return Builder.CreateTrunc(Ops[0], Ty, "vmovn"); 2017 } 2018 case ARM::BI__builtin_neon_vmul_v: 2019 case ARM::BI__builtin_neon_vmulq_v: 2020 assert(Type.isPoly() && "vmul builtin only supported for polynomial types"); 2021 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vmulp, Ty), 2022 Ops, "vmul"); 2023 case ARM::BI__builtin_neon_vmull_v: 2024 Int = usgn ? Intrinsic::arm_neon_vmullu : Intrinsic::arm_neon_vmulls; 2025 Int = Type.isPoly() ? (unsigned)Intrinsic::arm_neon_vmullp : Int; 2026 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vmull"); 2027 case ARM::BI__builtin_neon_vpadal_v: 2028 case ARM::BI__builtin_neon_vpadalq_v: { 2029 Int = usgn ? Intrinsic::arm_neon_vpadalu : Intrinsic::arm_neon_vpadals; 2030 // The source operand type has twice as many elements of half the size. 2031 unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits(); 2032 llvm::Type *EltTy = 2033 llvm::IntegerType::get(getLLVMContext(), EltBits / 2); 2034 llvm::Type *NarrowTy = 2035 llvm::VectorType::get(EltTy, VTy->getNumElements() * 2); 2036 llvm::Type *Tys[2] = { Ty, NarrowTy }; 2037 return EmitNeonCall(CGM.getIntrinsic(Int, Tys), Ops, "vpadal"); 2038 } 2039 case ARM::BI__builtin_neon_vpadd_v: 2040 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vpadd, Ty), 2041 Ops, "vpadd"); 2042 case ARM::BI__builtin_neon_vpaddl_v: 2043 case ARM::BI__builtin_neon_vpaddlq_v: { 2044 Int = usgn ? Intrinsic::arm_neon_vpaddlu : Intrinsic::arm_neon_vpaddls; 2045 // The source operand type has twice as many elements of half the size. 2046 unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits(); 2047 llvm::Type *EltTy = llvm::IntegerType::get(getLLVMContext(), EltBits / 2); 2048 llvm::Type *NarrowTy = 2049 llvm::VectorType::get(EltTy, VTy->getNumElements() * 2); 2050 llvm::Type *Tys[2] = { Ty, NarrowTy }; 2051 return EmitNeonCall(CGM.getIntrinsic(Int, Tys), Ops, "vpaddl"); 2052 } 2053 case ARM::BI__builtin_neon_vpmax_v: 2054 Int = usgn ? Intrinsic::arm_neon_vpmaxu : Intrinsic::arm_neon_vpmaxs; 2055 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vpmax"); 2056 case ARM::BI__builtin_neon_vpmin_v: 2057 Int = usgn ? Intrinsic::arm_neon_vpminu : Intrinsic::arm_neon_vpmins; 2058 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vpmin"); 2059 case ARM::BI__builtin_neon_vqabs_v: 2060 case ARM::BI__builtin_neon_vqabsq_v: 2061 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqabs, Ty), 2062 Ops, "vqabs"); 2063 case ARM::BI__builtin_neon_vqadd_v: 2064 case ARM::BI__builtin_neon_vqaddq_v: 2065 Int = usgn ? Intrinsic::arm_neon_vqaddu : Intrinsic::arm_neon_vqadds; 2066 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqadd"); 2067 case ARM::BI__builtin_neon_vqdmlal_v: 2068 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqdmlal, Ty), 2069 Ops, "vqdmlal"); 2070 case ARM::BI__builtin_neon_vqdmlsl_v: 2071 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqdmlsl, Ty), 2072 Ops, "vqdmlsl"); 2073 case ARM::BI__builtin_neon_vqdmulh_v: 2074 case ARM::BI__builtin_neon_vqdmulhq_v: 2075 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqdmulh, Ty), 2076 Ops, "vqdmulh"); 2077 case ARM::BI__builtin_neon_vqdmull_v: 2078 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqdmull, Ty), 2079 Ops, "vqdmull"); 2080 case ARM::BI__builtin_neon_vqmovn_v: 2081 Int = usgn ? Intrinsic::arm_neon_vqmovnu : Intrinsic::arm_neon_vqmovns; 2082 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqmovn"); 2083 case ARM::BI__builtin_neon_vqmovun_v: 2084 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqmovnsu, Ty), 2085 Ops, "vqdmull"); 2086 case ARM::BI__builtin_neon_vqneg_v: 2087 case ARM::BI__builtin_neon_vqnegq_v: 2088 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqneg, Ty), 2089 Ops, "vqneg"); 2090 case ARM::BI__builtin_neon_vqrdmulh_v: 2091 case ARM::BI__builtin_neon_vqrdmulhq_v: 2092 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqrdmulh, Ty), 2093 Ops, "vqrdmulh"); 2094 case ARM::BI__builtin_neon_vqrshl_v: 2095 case ARM::BI__builtin_neon_vqrshlq_v: 2096 Int = usgn ? Intrinsic::arm_neon_vqrshiftu : Intrinsic::arm_neon_vqrshifts; 2097 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqrshl"); 2098 case ARM::BI__builtin_neon_vqrshrn_n_v: 2099 Int = usgn ? Intrinsic::arm_neon_vqrshiftnu : Intrinsic::arm_neon_vqrshiftns; 2100 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqrshrn_n", 2101 1, true); 2102 case ARM::BI__builtin_neon_vqrshrun_n_v: 2103 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqrshiftnsu, Ty), 2104 Ops, "vqrshrun_n", 1, true); 2105 case ARM::BI__builtin_neon_vqshl_v: 2106 case ARM::BI__builtin_neon_vqshlq_v: 2107 Int = usgn ? Intrinsic::arm_neon_vqshiftu : Intrinsic::arm_neon_vqshifts; 2108 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqshl"); 2109 case ARM::BI__builtin_neon_vqshl_n_v: 2110 case ARM::BI__builtin_neon_vqshlq_n_v: 2111 Int = usgn ? Intrinsic::arm_neon_vqshiftu : Intrinsic::arm_neon_vqshifts; 2112 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqshl_n", 2113 1, false); 2114 case ARM::BI__builtin_neon_vqshlu_n_v: 2115 case ARM::BI__builtin_neon_vqshluq_n_v: 2116 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqshiftsu, Ty), 2117 Ops, "vqshlu", 1, false); 2118 case ARM::BI__builtin_neon_vqshrn_n_v: 2119 Int = usgn ? Intrinsic::arm_neon_vqshiftnu : Intrinsic::arm_neon_vqshiftns; 2120 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqshrn_n", 2121 1, true); 2122 case ARM::BI__builtin_neon_vqshrun_n_v: 2123 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vqshiftnsu, Ty), 2124 Ops, "vqshrun_n", 1, true); 2125 case ARM::BI__builtin_neon_vqsub_v: 2126 case ARM::BI__builtin_neon_vqsubq_v: 2127 Int = usgn ? Intrinsic::arm_neon_vqsubu : Intrinsic::arm_neon_vqsubs; 2128 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vqsub"); 2129 case ARM::BI__builtin_neon_vraddhn_v: 2130 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vraddhn, Ty), 2131 Ops, "vraddhn"); 2132 case ARM::BI__builtin_neon_vrecpe_v: 2133 case ARM::BI__builtin_neon_vrecpeq_v: 2134 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrecpe, Ty), 2135 Ops, "vrecpe"); 2136 case ARM::BI__builtin_neon_vrecps_v: 2137 case ARM::BI__builtin_neon_vrecpsq_v: 2138 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrecps, Ty), 2139 Ops, "vrecps"); 2140 case ARM::BI__builtin_neon_vrhadd_v: 2141 case ARM::BI__builtin_neon_vrhaddq_v: 2142 Int = usgn ? Intrinsic::arm_neon_vrhaddu : Intrinsic::arm_neon_vrhadds; 2143 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vrhadd"); 2144 case ARM::BI__builtin_neon_vrshl_v: 2145 case ARM::BI__builtin_neon_vrshlq_v: 2146 Int = usgn ? Intrinsic::arm_neon_vrshiftu : Intrinsic::arm_neon_vrshifts; 2147 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vrshl"); 2148 case ARM::BI__builtin_neon_vrshrn_n_v: 2149 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrshiftn, Ty), 2150 Ops, "vrshrn_n", 1, true); 2151 case ARM::BI__builtin_neon_vrshr_n_v: 2152 case ARM::BI__builtin_neon_vrshrq_n_v: 2153 Int = usgn ? Intrinsic::arm_neon_vrshiftu : Intrinsic::arm_neon_vrshifts; 2154 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vrshr_n", 1, true); 2155 case ARM::BI__builtin_neon_vrsqrte_v: 2156 case ARM::BI__builtin_neon_vrsqrteq_v: 2157 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrsqrte, Ty), 2158 Ops, "vrsqrte"); 2159 case ARM::BI__builtin_neon_vrsqrts_v: 2160 case ARM::BI__builtin_neon_vrsqrtsq_v: 2161 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrsqrts, Ty), 2162 Ops, "vrsqrts"); 2163 case ARM::BI__builtin_neon_vrsra_n_v: 2164 case ARM::BI__builtin_neon_vrsraq_n_v: 2165 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 2166 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2167 Ops[2] = EmitNeonShiftVector(Ops[2], Ty, true); 2168 Int = usgn ? Intrinsic::arm_neon_vrshiftu : Intrinsic::arm_neon_vrshifts; 2169 Ops[1] = Builder.CreateCall2(CGM.getIntrinsic(Int, Ty), Ops[1], Ops[2]); 2170 return Builder.CreateAdd(Ops[0], Ops[1], "vrsra_n"); 2171 case ARM::BI__builtin_neon_vrsubhn_v: 2172 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vrsubhn, Ty), 2173 Ops, "vrsubhn"); 2174 case ARM::BI__builtin_neon_vshl_v: 2175 case ARM::BI__builtin_neon_vshlq_v: 2176 Int = usgn ? Intrinsic::arm_neon_vshiftu : Intrinsic::arm_neon_vshifts; 2177 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vshl"); 2178 case ARM::BI__builtin_neon_vshll_n_v: 2179 Int = usgn ? Intrinsic::arm_neon_vshiftlu : Intrinsic::arm_neon_vshiftls; 2180 return EmitNeonCall(CGM.getIntrinsic(Int, Ty), Ops, "vshll", 1); 2181 case ARM::BI__builtin_neon_vshl_n_v: 2182 case ARM::BI__builtin_neon_vshlq_n_v: 2183 Ops[1] = EmitNeonShiftVector(Ops[1], Ty, false); 2184 return Builder.CreateShl(Builder.CreateBitCast(Ops[0],Ty), Ops[1], "vshl_n"); 2185 case ARM::BI__builtin_neon_vshrn_n_v: 2186 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vshiftn, Ty), 2187 Ops, "vshrn_n", 1, true); 2188 case ARM::BI__builtin_neon_vshr_n_v: 2189 case ARM::BI__builtin_neon_vshrq_n_v: 2190 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 2191 Ops[1] = EmitNeonShiftVector(Ops[1], Ty, false); 2192 if (usgn) 2193 return Builder.CreateLShr(Ops[0], Ops[1], "vshr_n"); 2194 else 2195 return Builder.CreateAShr(Ops[0], Ops[1], "vshr_n"); 2196 case ARM::BI__builtin_neon_vsri_n_v: 2197 case ARM::BI__builtin_neon_vsriq_n_v: 2198 rightShift = true; 2199 case ARM::BI__builtin_neon_vsli_n_v: 2200 case ARM::BI__builtin_neon_vsliq_n_v: 2201 Ops[2] = EmitNeonShiftVector(Ops[2], Ty, rightShift); 2202 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vshiftins, Ty), 2203 Ops, "vsli_n"); 2204 case ARM::BI__builtin_neon_vsra_n_v: 2205 case ARM::BI__builtin_neon_vsraq_n_v: 2206 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 2207 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2208 Ops[2] = EmitNeonShiftVector(Ops[2], Ty, false); 2209 if (usgn) 2210 Ops[1] = Builder.CreateLShr(Ops[1], Ops[2], "vsra_n"); 2211 else 2212 Ops[1] = Builder.CreateAShr(Ops[1], Ops[2], "vsra_n"); 2213 return Builder.CreateAdd(Ops[0], Ops[1]); 2214 case ARM::BI__builtin_neon_vst1_v: 2215 case ARM::BI__builtin_neon_vst1q_v: 2216 Ops.push_back(Align); 2217 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst1, Ty), 2218 Ops, ""); 2219 case ARM::BI__builtin_neon_vst1q_lane_v: 2220 // Handle 64-bit integer elements as a special case. Use a shuffle to get 2221 // a one-element vector and avoid poor code for i64 in the backend. 2222 if (VTy->getElementType()->isIntegerTy(64)) { 2223 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2224 Value *SV = llvm::ConstantVector::get(cast<llvm::Constant>(Ops[2])); 2225 Ops[1] = Builder.CreateShuffleVector(Ops[1], Ops[1], SV); 2226 Ops[2] = Align; 2227 return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst1, 2228 Ops[1]->getType()), Ops); 2229 } 2230 // fall through 2231 case ARM::BI__builtin_neon_vst1_lane_v: { 2232 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2233 Ops[1] = Builder.CreateExtractElement(Ops[1], Ops[2]); 2234 Ty = llvm::PointerType::getUnqual(Ops[1]->getType()); 2235 StoreInst *St = Builder.CreateStore(Ops[1], 2236 Builder.CreateBitCast(Ops[0], Ty)); 2237 St->setAlignment(cast<ConstantInt>(Align)->getZExtValue()); 2238 return St; 2239 } 2240 case ARM::BI__builtin_neon_vst2_v: 2241 case ARM::BI__builtin_neon_vst2q_v: 2242 Ops.push_back(Align); 2243 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst2, Ty), 2244 Ops, ""); 2245 case ARM::BI__builtin_neon_vst2_lane_v: 2246 case ARM::BI__builtin_neon_vst2q_lane_v: 2247 Ops.push_back(Align); 2248 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst2lane, Ty), 2249 Ops, ""); 2250 case ARM::BI__builtin_neon_vst3_v: 2251 case ARM::BI__builtin_neon_vst3q_v: 2252 Ops.push_back(Align); 2253 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst3, Ty), 2254 Ops, ""); 2255 case ARM::BI__builtin_neon_vst3_lane_v: 2256 case ARM::BI__builtin_neon_vst3q_lane_v: 2257 Ops.push_back(Align); 2258 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst3lane, Ty), 2259 Ops, ""); 2260 case ARM::BI__builtin_neon_vst4_v: 2261 case ARM::BI__builtin_neon_vst4q_v: 2262 Ops.push_back(Align); 2263 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst4, Ty), 2264 Ops, ""); 2265 case ARM::BI__builtin_neon_vst4_lane_v: 2266 case ARM::BI__builtin_neon_vst4q_lane_v: 2267 Ops.push_back(Align); 2268 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vst4lane, Ty), 2269 Ops, ""); 2270 case ARM::BI__builtin_neon_vsubhn_v: 2271 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vsubhn, Ty), 2272 Ops, "vsubhn"); 2273 case ARM::BI__builtin_neon_vtbl1_v: 2274 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbl1), 2275 Ops, "vtbl1"); 2276 case ARM::BI__builtin_neon_vtbl2_v: 2277 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbl2), 2278 Ops, "vtbl2"); 2279 case ARM::BI__builtin_neon_vtbl3_v: 2280 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbl3), 2281 Ops, "vtbl3"); 2282 case ARM::BI__builtin_neon_vtbl4_v: 2283 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbl4), 2284 Ops, "vtbl4"); 2285 case ARM::BI__builtin_neon_vtbx1_v: 2286 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbx1), 2287 Ops, "vtbx1"); 2288 case ARM::BI__builtin_neon_vtbx2_v: 2289 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbx2), 2290 Ops, "vtbx2"); 2291 case ARM::BI__builtin_neon_vtbx3_v: 2292 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbx3), 2293 Ops, "vtbx3"); 2294 case ARM::BI__builtin_neon_vtbx4_v: 2295 return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vtbx4), 2296 Ops, "vtbx4"); 2297 case ARM::BI__builtin_neon_vtst_v: 2298 case ARM::BI__builtin_neon_vtstq_v: { 2299 Ops[0] = Builder.CreateBitCast(Ops[0], Ty); 2300 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2301 Ops[0] = Builder.CreateAnd(Ops[0], Ops[1]); 2302 Ops[0] = Builder.CreateICmp(ICmpInst::ICMP_NE, Ops[0], 2303 ConstantAggregateZero::get(Ty)); 2304 return Builder.CreateSExt(Ops[0], Ty, "vtst"); 2305 } 2306 case ARM::BI__builtin_neon_vtrn_v: 2307 case ARM::BI__builtin_neon_vtrnq_v: { 2308 Ops[0] = Builder.CreateBitCast(Ops[0], llvm::PointerType::getUnqual(Ty)); 2309 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2310 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 2311 Value *SV = 0; 2312 2313 for (unsigned vi = 0; vi != 2; ++vi) { 2314 SmallVector<Constant*, 16> Indices; 2315 for (unsigned i = 0, e = VTy->getNumElements(); i != e; i += 2) { 2316 Indices.push_back(Builder.getInt32(i+vi)); 2317 Indices.push_back(Builder.getInt32(i+e+vi)); 2318 } 2319 Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi); 2320 SV = llvm::ConstantVector::get(Indices); 2321 SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vtrn"); 2322 SV = Builder.CreateStore(SV, Addr); 2323 } 2324 return SV; 2325 } 2326 case ARM::BI__builtin_neon_vuzp_v: 2327 case ARM::BI__builtin_neon_vuzpq_v: { 2328 Ops[0] = Builder.CreateBitCast(Ops[0], llvm::PointerType::getUnqual(Ty)); 2329 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2330 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 2331 Value *SV = 0; 2332 2333 for (unsigned vi = 0; vi != 2; ++vi) { 2334 SmallVector<Constant*, 16> Indices; 2335 for (unsigned i = 0, e = VTy->getNumElements(); i != e; ++i) 2336 Indices.push_back(ConstantInt::get(Int32Ty, 2*i+vi)); 2337 2338 Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi); 2339 SV = llvm::ConstantVector::get(Indices); 2340 SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vuzp"); 2341 SV = Builder.CreateStore(SV, Addr); 2342 } 2343 return SV; 2344 } 2345 case ARM::BI__builtin_neon_vzip_v: 2346 case ARM::BI__builtin_neon_vzipq_v: { 2347 Ops[0] = Builder.CreateBitCast(Ops[0], llvm::PointerType::getUnqual(Ty)); 2348 Ops[1] = Builder.CreateBitCast(Ops[1], Ty); 2349 Ops[2] = Builder.CreateBitCast(Ops[2], Ty); 2350 Value *SV = 0; 2351 2352 for (unsigned vi = 0; vi != 2; ++vi) { 2353 SmallVector<Constant*, 16> Indices; 2354 for (unsigned i = 0, e = VTy->getNumElements(); i != e; i += 2) { 2355 Indices.push_back(ConstantInt::get(Int32Ty, (i + vi*e) >> 1)); 2356 Indices.push_back(ConstantInt::get(Int32Ty, ((i + vi*e) >> 1)+e)); 2357 } 2358 Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi); 2359 SV = llvm::ConstantVector::get(Indices); 2360 SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vzip"); 2361 SV = Builder.CreateStore(SV, Addr); 2362 } 2363 return SV; 2364 } 2365 } 2366 } 2367 2368 llvm::Value *CodeGenFunction:: 2369 BuildVector(ArrayRef<llvm::Value*> Ops) { 2370 assert((Ops.size() & (Ops.size() - 1)) == 0 && 2371 "Not a power-of-two sized vector!"); 2372 bool AllConstants = true; 2373 for (unsigned i = 0, e = Ops.size(); i != e && AllConstants; ++i) 2374 AllConstants &= isa<Constant>(Ops[i]); 2375 2376 // If this is a constant vector, create a ConstantVector. 2377 if (AllConstants) { 2378 SmallVector<llvm::Constant*, 16> CstOps; 2379 for (unsigned i = 0, e = Ops.size(); i != e; ++i) 2380 CstOps.push_back(cast<Constant>(Ops[i])); 2381 return llvm::ConstantVector::get(CstOps); 2382 } 2383 2384 // Otherwise, insertelement the values to build the vector. 2385 Value *Result = 2386 llvm::UndefValue::get(llvm::VectorType::get(Ops[0]->getType(), Ops.size())); 2387 2388 for (unsigned i = 0, e = Ops.size(); i != e; ++i) 2389 Result = Builder.CreateInsertElement(Result, Ops[i], Builder.getInt32(i)); 2390 2391 return Result; 2392 } 2393 2394 Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID, 2395 const CallExpr *E) { 2396 SmallVector<Value*, 4> Ops; 2397 2398 // Find out if any arguments are required to be integer constant expressions. 2399 unsigned ICEArguments = 0; 2400 ASTContext::GetBuiltinTypeError Error; 2401 getContext().GetBuiltinType(BuiltinID, Error, &ICEArguments); 2402 assert(Error == ASTContext::GE_None && "Should not codegen an error"); 2403 2404 for (unsigned i = 0, e = E->getNumArgs(); i != e; i++) { 2405 // If this is a normal argument, just emit it as a scalar. 2406 if ((ICEArguments & (1 << i)) == 0) { 2407 Ops.push_back(EmitScalarExpr(E->getArg(i))); 2408 continue; 2409 } 2410 2411 // If this is required to be a constant, constant fold it so that we know 2412 // that the generated intrinsic gets a ConstantInt. 2413 llvm::APSInt Result; 2414 bool IsConst = E->getArg(i)->isIntegerConstantExpr(Result, getContext()); 2415 assert(IsConst && "Constant arg isn't actually constant?"); (void)IsConst; 2416 Ops.push_back(llvm::ConstantInt::get(getLLVMContext(), Result)); 2417 } 2418 2419 switch (BuiltinID) { 2420 default: return 0; 2421 case X86::BI__builtin_ia32_vec_init_v8qi: 2422 case X86::BI__builtin_ia32_vec_init_v4hi: 2423 case X86::BI__builtin_ia32_vec_init_v2si: 2424 return Builder.CreateBitCast(BuildVector(Ops), 2425 llvm::Type::getX86_MMXTy(getLLVMContext())); 2426 case X86::BI__builtin_ia32_vec_ext_v2si: 2427 return Builder.CreateExtractElement(Ops[0], 2428 llvm::ConstantInt::get(Ops[1]->getType(), 0)); 2429 case X86::BI__builtin_ia32_ldmxcsr: { 2430 llvm::Type *PtrTy = Int8PtrTy; 2431 Value *One = llvm::ConstantInt::get(Int32Ty, 1); 2432 Value *Tmp = Builder.CreateAlloca(Int32Ty, One); 2433 Builder.CreateStore(Ops[0], Tmp); 2434 return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::x86_sse_ldmxcsr), 2435 Builder.CreateBitCast(Tmp, PtrTy)); 2436 } 2437 case X86::BI__builtin_ia32_stmxcsr: { 2438 llvm::Type *PtrTy = Int8PtrTy; 2439 Value *One = llvm::ConstantInt::get(Int32Ty, 1); 2440 Value *Tmp = Builder.CreateAlloca(Int32Ty, One); 2441 Builder.CreateCall(CGM.getIntrinsic(Intrinsic::x86_sse_stmxcsr), 2442 Builder.CreateBitCast(Tmp, PtrTy)); 2443 return Builder.CreateLoad(Tmp, "stmxcsr"); 2444 } 2445 case X86::BI__builtin_ia32_storehps: 2446 case X86::BI__builtin_ia32_storelps: { 2447 llvm::Type *PtrTy = llvm::PointerType::getUnqual(Int64Ty); 2448 llvm::Type *VecTy = llvm::VectorType::get(Int64Ty, 2); 2449 2450 // cast val v2i64 2451 Ops[1] = Builder.CreateBitCast(Ops[1], VecTy, "cast"); 2452 2453 // extract (0, 1) 2454 unsigned Index = BuiltinID == X86::BI__builtin_ia32_storelps ? 0 : 1; 2455 llvm::Value *Idx = llvm::ConstantInt::get(Int32Ty, Index); 2456 Ops[1] = Builder.CreateExtractElement(Ops[1], Idx, "extract"); 2457 2458 // cast pointer to i64 & store 2459 Ops[0] = Builder.CreateBitCast(Ops[0], PtrTy); 2460 return Builder.CreateStore(Ops[1], Ops[0]); 2461 } 2462 case X86::BI__builtin_ia32_palignr: { 2463 unsigned shiftVal = cast<llvm::ConstantInt>(Ops[2])->getZExtValue(); 2464 2465 // If palignr is shifting the pair of input vectors less than 9 bytes, 2466 // emit a shuffle instruction. 2467 if (shiftVal <= 8) { 2468 SmallVector<llvm::Constant*, 8> Indices; 2469 for (unsigned i = 0; i != 8; ++i) 2470 Indices.push_back(llvm::ConstantInt::get(Int32Ty, shiftVal + i)); 2471 2472 Value* SV = llvm::ConstantVector::get(Indices); 2473 return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr"); 2474 } 2475 2476 // If palignr is shifting the pair of input vectors more than 8 but less 2477 // than 16 bytes, emit a logical right shift of the destination. 2478 if (shiftVal < 16) { 2479 // MMX has these as 1 x i64 vectors for some odd optimization reasons. 2480 llvm::Type *VecTy = llvm::VectorType::get(Int64Ty, 1); 2481 2482 Ops[0] = Builder.CreateBitCast(Ops[0], VecTy, "cast"); 2483 Ops[1] = llvm::ConstantInt::get(VecTy, (shiftVal-8) * 8); 2484 2485 // create i32 constant 2486 llvm::Function *F = CGM.getIntrinsic(Intrinsic::x86_mmx_psrl_q); 2487 return Builder.CreateCall(F, makeArrayRef(&Ops[0], 2), "palignr"); 2488 } 2489 2490 // If palignr is shifting the pair of vectors more than 16 bytes, emit zero. 2491 return llvm::Constant::getNullValue(ConvertType(E->getType())); 2492 } 2493 case X86::BI__builtin_ia32_palignr128: { 2494 unsigned shiftVal = cast<llvm::ConstantInt>(Ops[2])->getZExtValue(); 2495 2496 // If palignr is shifting the pair of input vectors less than 17 bytes, 2497 // emit a shuffle instruction. 2498 if (shiftVal <= 16) { 2499 SmallVector<llvm::Constant*, 16> Indices; 2500 for (unsigned i = 0; i != 16; ++i) 2501 Indices.push_back(llvm::ConstantInt::get(Int32Ty, shiftVal + i)); 2502 2503 Value* SV = llvm::ConstantVector::get(Indices); 2504 return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr"); 2505 } 2506 2507 // If palignr is shifting the pair of input vectors more than 16 but less 2508 // than 32 bytes, emit a logical right shift of the destination. 2509 if (shiftVal < 32) { 2510 llvm::Type *VecTy = llvm::VectorType::get(Int64Ty, 2); 2511 2512 Ops[0] = Builder.CreateBitCast(Ops[0], VecTy, "cast"); 2513 Ops[1] = llvm::ConstantInt::get(Int32Ty, (shiftVal-16) * 8); 2514 2515 // create i32 constant 2516 llvm::Function *F = CGM.getIntrinsic(Intrinsic::x86_sse2_psrl_dq); 2517 return Builder.CreateCall(F, makeArrayRef(&Ops[0], 2), "palignr"); 2518 } 2519 2520 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero. 2521 return llvm::Constant::getNullValue(ConvertType(E->getType())); 2522 } 2523 case X86::BI__builtin_ia32_palignr256: { 2524 unsigned shiftVal = cast<llvm::ConstantInt>(Ops[2])->getZExtValue(); 2525 2526 // If palignr is shifting the pair of input vectors less than 17 bytes, 2527 // emit a shuffle instruction. 2528 if (shiftVal <= 16) { 2529 SmallVector<llvm::Constant*, 32> Indices; 2530 // 256-bit palignr operates on 128-bit lanes so we need to handle that 2531 for (unsigned l = 0; l != 2; ++l) { 2532 unsigned LaneStart = l * 16; 2533 unsigned LaneEnd = (l+1) * 16; 2534 for (unsigned i = 0; i != 16; ++i) { 2535 unsigned Idx = shiftVal + i + LaneStart; 2536 if (Idx >= LaneEnd) Idx += 16; // end of lane, switch operand 2537 Indices.push_back(llvm::ConstantInt::get(Int32Ty, Idx)); 2538 } 2539 } 2540 2541 Value* SV = llvm::ConstantVector::get(Indices); 2542 return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr"); 2543 } 2544 2545 // If palignr is shifting the pair of input vectors more than 16 but less 2546 // than 32 bytes, emit a logical right shift of the destination. 2547 if (shiftVal < 32) { 2548 llvm::Type *VecTy = llvm::VectorType::get(Int64Ty, 4); 2549 2550 Ops[0] = Builder.CreateBitCast(Ops[0], VecTy, "cast"); 2551 Ops[1] = llvm::ConstantInt::get(Int32Ty, (shiftVal-16) * 8); 2552 2553 // create i32 constant 2554 llvm::Function *F = CGM.getIntrinsic(Intrinsic::x86_avx2_psrl_dq); 2555 return Builder.CreateCall(F, makeArrayRef(&Ops[0], 2), "palignr"); 2556 } 2557 2558 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero. 2559 return llvm::Constant::getNullValue(ConvertType(E->getType())); 2560 } 2561 case X86::BI__builtin_ia32_movntps: 2562 case X86::BI__builtin_ia32_movntps256: 2563 case X86::BI__builtin_ia32_movntpd: 2564 case X86::BI__builtin_ia32_movntpd256: 2565 case X86::BI__builtin_ia32_movntdq: 2566 case X86::BI__builtin_ia32_movntdq256: 2567 case X86::BI__builtin_ia32_movnti: { 2568 llvm::MDNode *Node = llvm::MDNode::get(getLLVMContext(), 2569 Builder.getInt32(1)); 2570 2571 // Convert the type of the pointer to a pointer to the stored type. 2572 Value *BC = Builder.CreateBitCast(Ops[0], 2573 llvm::PointerType::getUnqual(Ops[1]->getType()), 2574 "cast"); 2575 StoreInst *SI = Builder.CreateStore(Ops[1], BC); 2576 SI->setMetadata(CGM.getModule().getMDKindID("nontemporal"), Node); 2577 SI->setAlignment(16); 2578 return SI; 2579 } 2580 // 3DNow! 2581 case X86::BI__builtin_ia32_pswapdsf: 2582 case X86::BI__builtin_ia32_pswapdsi: { 2583 const char *name = 0; 2584 Intrinsic::ID ID = Intrinsic::not_intrinsic; 2585 switch(BuiltinID) { 2586 default: llvm_unreachable("Unsupported intrinsic!"); 2587 case X86::BI__builtin_ia32_pswapdsf: 2588 case X86::BI__builtin_ia32_pswapdsi: 2589 name = "pswapd"; 2590 ID = Intrinsic::x86_3dnowa_pswapd; 2591 break; 2592 } 2593 llvm::Type *MMXTy = llvm::Type::getX86_MMXTy(getLLVMContext()); 2594 Ops[0] = Builder.CreateBitCast(Ops[0], MMXTy, "cast"); 2595 llvm::Function *F = CGM.getIntrinsic(ID); 2596 return Builder.CreateCall(F, Ops, name); 2597 } 2598 case X86::BI__builtin_ia32_rdrand16_step: 2599 case X86::BI__builtin_ia32_rdrand32_step: 2600 case X86::BI__builtin_ia32_rdrand64_step: { 2601 Intrinsic::ID ID; 2602 switch (BuiltinID) { 2603 default: llvm_unreachable("Unsupported intrinsic!"); 2604 case X86::BI__builtin_ia32_rdrand16_step: 2605 ID = Intrinsic::x86_rdrand_16; 2606 break; 2607 case X86::BI__builtin_ia32_rdrand32_step: 2608 ID = Intrinsic::x86_rdrand_32; 2609 break; 2610 case X86::BI__builtin_ia32_rdrand64_step: 2611 ID = Intrinsic::x86_rdrand_64; 2612 break; 2613 } 2614 2615 Value *Call = Builder.CreateCall(CGM.getIntrinsic(ID)); 2616 Builder.CreateStore(Builder.CreateExtractValue(Call, 0), Ops[0]); 2617 return Builder.CreateExtractValue(Call, 1); 2618 } 2619 } 2620 } 2621 2622 2623 Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID, 2624 const CallExpr *E) { 2625 SmallVector<Value*, 4> Ops; 2626 2627 for (unsigned i = 0, e = E->getNumArgs(); i != e; i++) 2628 Ops.push_back(EmitScalarExpr(E->getArg(i))); 2629 2630 Intrinsic::ID ID = Intrinsic::not_intrinsic; 2631 2632 switch (BuiltinID) { 2633 default: return 0; 2634 2635 // vec_ld, vec_lvsl, vec_lvsr 2636 case PPC::BI__builtin_altivec_lvx: 2637 case PPC::BI__builtin_altivec_lvxl: 2638 case PPC::BI__builtin_altivec_lvebx: 2639 case PPC::BI__builtin_altivec_lvehx: 2640 case PPC::BI__builtin_altivec_lvewx: 2641 case PPC::BI__builtin_altivec_lvsl: 2642 case PPC::BI__builtin_altivec_lvsr: 2643 { 2644 Ops[1] = Builder.CreateBitCast(Ops[1], Int8PtrTy); 2645 2646 Ops[0] = Builder.CreateGEP(Ops[1], Ops[0]); 2647 Ops.pop_back(); 2648 2649 switch (BuiltinID) { 2650 default: llvm_unreachable("Unsupported ld/lvsl/lvsr intrinsic!"); 2651 case PPC::BI__builtin_altivec_lvx: 2652 ID = Intrinsic::ppc_altivec_lvx; 2653 break; 2654 case PPC::BI__builtin_altivec_lvxl: 2655 ID = Intrinsic::ppc_altivec_lvxl; 2656 break; 2657 case PPC::BI__builtin_altivec_lvebx: 2658 ID = Intrinsic::ppc_altivec_lvebx; 2659 break; 2660 case PPC::BI__builtin_altivec_lvehx: 2661 ID = Intrinsic::ppc_altivec_lvehx; 2662 break; 2663 case PPC::BI__builtin_altivec_lvewx: 2664 ID = Intrinsic::ppc_altivec_lvewx; 2665 break; 2666 case PPC::BI__builtin_altivec_lvsl: 2667 ID = Intrinsic::ppc_altivec_lvsl; 2668 break; 2669 case PPC::BI__builtin_altivec_lvsr: 2670 ID = Intrinsic::ppc_altivec_lvsr; 2671 break; 2672 } 2673 llvm::Function *F = CGM.getIntrinsic(ID); 2674 return Builder.CreateCall(F, Ops, ""); 2675 } 2676 2677 // vec_st 2678 case PPC::BI__builtin_altivec_stvx: 2679 case PPC::BI__builtin_altivec_stvxl: 2680 case PPC::BI__builtin_altivec_stvebx: 2681 case PPC::BI__builtin_altivec_stvehx: 2682 case PPC::BI__builtin_altivec_stvewx: 2683 { 2684 Ops[2] = Builder.CreateBitCast(Ops[2], Int8PtrTy); 2685 Ops[1] = Builder.CreateGEP(Ops[2], Ops[1]); 2686 Ops.pop_back(); 2687 2688 switch (BuiltinID) { 2689 default: llvm_unreachable("Unsupported st intrinsic!"); 2690 case PPC::BI__builtin_altivec_stvx: 2691 ID = Intrinsic::ppc_altivec_stvx; 2692 break; 2693 case PPC::BI__builtin_altivec_stvxl: 2694 ID = Intrinsic::ppc_altivec_stvxl; 2695 break; 2696 case PPC::BI__builtin_altivec_stvebx: 2697 ID = Intrinsic::ppc_altivec_stvebx; 2698 break; 2699 case PPC::BI__builtin_altivec_stvehx: 2700 ID = Intrinsic::ppc_altivec_stvehx; 2701 break; 2702 case PPC::BI__builtin_altivec_stvewx: 2703 ID = Intrinsic::ppc_altivec_stvewx; 2704 break; 2705 } 2706 llvm::Function *F = CGM.getIntrinsic(ID); 2707 return Builder.CreateCall(F, Ops, ""); 2708 } 2709 } 2710 } 2711
