1 //===---- llvm/IRBuilder.h - Builder for LLVM Instructions ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the IRBuilder class, which is used as a convenient way
11 // to create LLVM instructions with a consistent and simplified interface.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_IR_IRBUILDER_H
16 #define LLVM_IR_IRBUILDER_H
18 #include "llvm/ADT/ArrayRef.h"
19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/ADT/Twine.h"
21 #include "llvm/IR/BasicBlock.h"
22 #include "llvm/IR/ConstantFolder.h"
23 #include "llvm/IR/DataLayout.h"
24 #include "llvm/IR/Instructions.h"
25 #include "llvm/IR/LLVMContext.h"
26 #include "llvm/IR/Operator.h"
27 #include "llvm/IR/ValueHandle.h"
28 #include "llvm/Support/CBindingWrapping.h"
33 /// \brief This provides the default implementation of the IRBuilder
34 /// 'InsertHelper' method that is called whenever an instruction is created by
35 /// IRBuilder and needs to be inserted.
37 /// By default, this inserts the instruction at the insertion point.
38 template <bool preserveNames = true>
39 class IRBuilderDefaultInserter {
41 void InsertHelper(Instruction *I, const Twine &Name,
42 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
43 if (BB) BB->getInstList().insert(InsertPt, I);
49 /// \brief Common base class shared among various IRBuilders.
51 DebugLoc CurDbgLocation;
54 BasicBlock::iterator InsertPt;
57 MDNode *DefaultFPMathTag;
61 IRBuilderBase(LLVMContext &context, MDNode *FPMathTag = nullptr)
62 : Context(context), DefaultFPMathTag(FPMathTag), FMF() {
63 ClearInsertionPoint();
66 //===--------------------------------------------------------------------===//
67 // Builder configuration methods
68 //===--------------------------------------------------------------------===//
70 /// \brief Clear the insertion point: created instructions will not be
71 /// inserted into a block.
72 void ClearInsertionPoint() {
77 BasicBlock *GetInsertBlock() const { return BB; }
78 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
79 LLVMContext &getContext() const { return Context; }
81 /// \brief This specifies that created instructions should be appended to the
82 /// end of the specified block.
83 void SetInsertPoint(BasicBlock *TheBB) {
88 /// \brief This specifies that created instructions should be inserted before
89 /// the specified instruction.
90 void SetInsertPoint(Instruction *I) {
93 assert(I != BB->end() && "Can't read debug loc from end()");
94 SetCurrentDebugLocation(I->getDebugLoc());
97 /// \brief This specifies that created instructions should be inserted at the
99 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
104 /// \brief Find the nearest point that dominates this use, and specify that
105 /// created instructions should be inserted at this point.
106 void SetInsertPoint(Use &U) {
107 Instruction *UseInst = cast<Instruction>(U.getUser());
108 if (PHINode *Phi = dyn_cast<PHINode>(UseInst)) {
109 BasicBlock *PredBB = Phi->getIncomingBlock(U);
110 assert(U != PredBB->getTerminator() && "critical edge not split");
111 SetInsertPoint(PredBB, PredBB->getTerminator());
114 SetInsertPoint(UseInst);
117 /// \brief Set location information used by debugging information.
118 void SetCurrentDebugLocation(const DebugLoc &L) {
122 /// \brief Get location information used by debugging information.
123 DebugLoc getCurrentDebugLocation() const { return CurDbgLocation; }
125 /// \brief If this builder has a current debug location, set it on the
126 /// specified instruction.
127 void SetInstDebugLocation(Instruction *I) const {
128 if (!CurDbgLocation.isUnknown())
129 I->setDebugLoc(CurDbgLocation);
132 /// \brief Get the return type of the current function that we're emitting
134 Type *getCurrentFunctionReturnType() const;
136 /// InsertPoint - A saved insertion point.
139 BasicBlock::iterator Point;
142 /// \brief Creates a new insertion point which doesn't point to anything.
143 InsertPoint() : Block(nullptr) {}
145 /// \brief Creates a new insertion point at the given location.
146 InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
147 : Block(InsertBlock), Point(InsertPoint) {}
149 /// \brief Returns true if this insert point is set.
150 bool isSet() const { return (Block != nullptr); }
152 llvm::BasicBlock *getBlock() const { return Block; }
153 llvm::BasicBlock::iterator getPoint() const { return Point; }
156 /// \brief Returns the current insert point.
157 InsertPoint saveIP() const {
158 return InsertPoint(GetInsertBlock(), GetInsertPoint());
161 /// \brief Returns the current insert point, clearing it in the process.
162 InsertPoint saveAndClearIP() {
163 InsertPoint IP(GetInsertBlock(), GetInsertPoint());
164 ClearInsertionPoint();
168 /// \brief Sets the current insert point to a previously-saved location.
169 void restoreIP(InsertPoint IP) {
171 SetInsertPoint(IP.getBlock(), IP.getPoint());
173 ClearInsertionPoint();
176 /// \brief Get the floating point math metadata being used.
177 MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
179 /// \brief Get the flags to be applied to created floating point ops
180 FastMathFlags getFastMathFlags() const { return FMF; }
182 /// \brief Clear the fast-math flags.
183 void clearFastMathFlags() { FMF.clear(); }
185 /// \brief Set the floating point math metadata to be used.
186 void SetDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
188 /// \brief Set the fast-math flags to be used with generated fp-math operators
189 void SetFastMathFlags(FastMathFlags NewFMF) { FMF = NewFMF; }
191 //===--------------------------------------------------------------------===//
193 //===--------------------------------------------------------------------===//
195 // \brief RAII object that stores the current insertion point and restores it
196 // when the object is destroyed. This includes the debug location.
197 class InsertPointGuard {
198 IRBuilderBase &Builder;
199 AssertingVH<BasicBlock> Block;
200 BasicBlock::iterator Point;
203 InsertPointGuard(const InsertPointGuard &) LLVM_DELETED_FUNCTION;
204 InsertPointGuard &operator=(const InsertPointGuard &) LLVM_DELETED_FUNCTION;
207 InsertPointGuard(IRBuilderBase &B)
208 : Builder(B), Block(B.GetInsertBlock()), Point(B.GetInsertPoint()),
209 DbgLoc(B.getCurrentDebugLocation()) {}
211 ~InsertPointGuard() {
212 Builder.restoreIP(InsertPoint(Block, Point));
213 Builder.SetCurrentDebugLocation(DbgLoc);
217 // \brief RAII object that stores the current fast math settings and restores
218 // them when the object is destroyed.
219 class FastMathFlagGuard {
220 IRBuilderBase &Builder;
224 FastMathFlagGuard(const FastMathFlagGuard &) LLVM_DELETED_FUNCTION;
225 FastMathFlagGuard &operator=(
226 const FastMathFlagGuard &) LLVM_DELETED_FUNCTION;
229 FastMathFlagGuard(IRBuilderBase &B)
230 : Builder(B), FMF(B.FMF), FPMathTag(B.DefaultFPMathTag) {}
232 ~FastMathFlagGuard() {
234 Builder.DefaultFPMathTag = FPMathTag;
238 //===--------------------------------------------------------------------===//
239 // Miscellaneous creation methods.
240 //===--------------------------------------------------------------------===//
242 /// \brief Make a new global variable with initializer type i8*
244 /// Make a new global variable with an initializer that has array of i8 type
245 /// filled in with the null terminated string value specified. The new global
246 /// variable will be marked mergable with any others of the same contents. If
247 /// Name is specified, it is the name of the global variable created.
248 Value *CreateGlobalString(StringRef Str, const Twine &Name = "");
250 /// \brief Get a constant value representing either true or false.
251 ConstantInt *getInt1(bool V) {
252 return ConstantInt::get(getInt1Ty(), V);
255 /// \brief Get the constant value for i1 true.
256 ConstantInt *getTrue() {
257 return ConstantInt::getTrue(Context);
260 /// \brief Get the constant value for i1 false.
261 ConstantInt *getFalse() {
262 return ConstantInt::getFalse(Context);
265 /// \brief Get a constant 8-bit value.
266 ConstantInt *getInt8(uint8_t C) {
267 return ConstantInt::get(getInt8Ty(), C);
270 /// \brief Get a constant 16-bit value.
271 ConstantInt *getInt16(uint16_t C) {
272 return ConstantInt::get(getInt16Ty(), C);
275 /// \brief Get a constant 32-bit value.
276 ConstantInt *getInt32(uint32_t C) {
277 return ConstantInt::get(getInt32Ty(), C);
280 /// \brief Get a constant 64-bit value.
281 ConstantInt *getInt64(uint64_t C) {
282 return ConstantInt::get(getInt64Ty(), C);
285 /// \brief Get a constant N-bit value, zero extended or truncated from
287 ConstantInt *getIntN(unsigned N, uint64_t C) {
288 return ConstantInt::get(getIntNTy(N), C);
291 /// \brief Get a constant integer value.
292 ConstantInt *getInt(const APInt &AI) {
293 return ConstantInt::get(Context, AI);
296 //===--------------------------------------------------------------------===//
297 // Type creation methods
298 //===--------------------------------------------------------------------===//
300 /// \brief Fetch the type representing a single bit
301 IntegerType *getInt1Ty() {
302 return Type::getInt1Ty(Context);
305 /// \brief Fetch the type representing an 8-bit integer.
306 IntegerType *getInt8Ty() {
307 return Type::getInt8Ty(Context);
310 /// \brief Fetch the type representing a 16-bit integer.
311 IntegerType *getInt16Ty() {
312 return Type::getInt16Ty(Context);
315 /// \brief Fetch the type representing a 32-bit integer.
316 IntegerType *getInt32Ty() {
317 return Type::getInt32Ty(Context);
320 /// \brief Fetch the type representing a 64-bit integer.
321 IntegerType *getInt64Ty() {
322 return Type::getInt64Ty(Context);
325 /// \brief Fetch the type representing an N-bit integer.
326 IntegerType *getIntNTy(unsigned N) {
327 return Type::getIntNTy(Context, N);
330 /// \brief Fetch the type representing a 16-bit floating point value.
332 return Type::getHalfTy(Context);
335 /// \brief Fetch the type representing a 32-bit floating point value.
337 return Type::getFloatTy(Context);
340 /// \brief Fetch the type representing a 64-bit floating point value.
341 Type *getDoubleTy() {
342 return Type::getDoubleTy(Context);
345 /// \brief Fetch the type representing void.
347 return Type::getVoidTy(Context);
350 /// \brief Fetch the type representing a pointer to an 8-bit integer value.
351 PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
352 return Type::getInt8PtrTy(Context, AddrSpace);
355 /// \brief Fetch the type representing a pointer to an integer value.
356 IntegerType* getIntPtrTy(const DataLayout *DL, unsigned AddrSpace = 0) {
357 return DL->getIntPtrType(Context, AddrSpace);
360 //===--------------------------------------------------------------------===//
361 // Intrinsic creation methods
362 //===--------------------------------------------------------------------===//
364 /// \brief Create and insert a memset to the specified pointer and the
367 /// If the pointer isn't an i8*, it will be converted. If a TBAA tag is
368 /// specified, it will be added to the instruction. Likewise with alias.scope
369 /// and noalias tags.
370 CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
371 bool isVolatile = false, MDNode *TBAATag = nullptr,
372 MDNode *ScopeTag = nullptr,
373 MDNode *NoAliasTag = nullptr) {
374 return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile,
375 TBAATag, ScopeTag, NoAliasTag);
378 CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
379 bool isVolatile = false, MDNode *TBAATag = nullptr,
380 MDNode *ScopeTag = nullptr,
381 MDNode *NoAliasTag = nullptr);
383 /// \brief Create and insert a memcpy between the specified pointers.
385 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
386 /// specified, it will be added to the instruction. Likewise with alias.scope
387 /// and noalias tags.
388 CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
389 bool isVolatile = false, MDNode *TBAATag = nullptr,
390 MDNode *TBAAStructTag = nullptr,
391 MDNode *ScopeTag = nullptr,
392 MDNode *NoAliasTag = nullptr) {
393 return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
394 TBAAStructTag, ScopeTag, NoAliasTag);
397 CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
398 bool isVolatile = false, MDNode *TBAATag = nullptr,
399 MDNode *TBAAStructTag = nullptr,
400 MDNode *ScopeTag = nullptr,
401 MDNode *NoAliasTag = nullptr);
403 /// \brief Create and insert a memmove between the specified
406 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
407 /// specified, it will be added to the instruction. Likewise with alias.scope
408 /// and noalias tags.
409 CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
410 bool isVolatile = false, MDNode *TBAATag = nullptr,
411 MDNode *ScopeTag = nullptr,
412 MDNode *NoAliasTag = nullptr) {
413 return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile,
414 TBAATag, ScopeTag, NoAliasTag);
417 CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
418 bool isVolatile = false, MDNode *TBAATag = nullptr,
419 MDNode *ScopeTag = nullptr,
420 MDNode *NoAliasTag = nullptr);
422 /// \brief Create a lifetime.start intrinsic.
424 /// If the pointer isn't i8* it will be converted.
425 CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = nullptr);
427 /// \brief Create a lifetime.end intrinsic.
429 /// If the pointer isn't i8* it will be converted.
430 CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
432 /// \brief Create a call to Masked Load intrinsic
433 CallInst *CreateMaskedLoad(ArrayRef<Value *> Ops);
435 /// \brief Create a call to Masked Store intrinsic
436 CallInst *CreateMaskedStore(ArrayRef<Value *> Ops);
438 /// \brief Create an assume intrinsic call that allows the optimizer to
439 /// assume that the provided condition will be true.
440 CallInst *CreateAssumption(Value *Cond);
443 /// \brief Create a call to a masked intrinsic with given Id.
444 /// Masked intrinsic has only one overloaded type - data type.
445 CallInst *CreateMaskedIntrinsic(unsigned Id, ArrayRef<Value *> Ops,
448 Value *getCastedInt8PtrValue(Value *Ptr);
451 /// \brief This provides a uniform API for creating instructions and inserting
452 /// them into a basic block: either at the end of a BasicBlock, or at a specific
453 /// iterator location in a block.
455 /// Note that the builder does not expose the full generality of LLVM
456 /// instructions. For access to extra instruction properties, use the mutators
457 /// (e.g. setVolatile) on the instructions after they have been
458 /// created. Convenience state exists to specify fast-math flags and fp-math
461 /// The first template argument handles whether or not to preserve names in the
462 /// final instruction output. This defaults to on. The second template argument
463 /// specifies a class to use for creating constants. This defaults to creating
464 /// minimally folded constants. The third template argument allows clients to
465 /// specify custom insertion hooks that are called on every newly created
467 template<bool preserveNames = true, typename T = ConstantFolder,
468 typename Inserter = IRBuilderDefaultInserter<preserveNames> >
469 class IRBuilder : public IRBuilderBase, public Inserter {
472 IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter(),
473 MDNode *FPMathTag = nullptr)
474 : IRBuilderBase(C, FPMathTag), Inserter(I), Folder(F) {
477 explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = nullptr)
478 : IRBuilderBase(C, FPMathTag), Folder() {
481 explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = nullptr)
482 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
483 SetInsertPoint(TheBB);
486 explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = nullptr)
487 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
488 SetInsertPoint(TheBB);
491 explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = nullptr)
492 : IRBuilderBase(IP->getContext(), FPMathTag), Folder() {
494 SetCurrentDebugLocation(IP->getDebugLoc());
497 explicit IRBuilder(Use &U, MDNode *FPMathTag = nullptr)
498 : IRBuilderBase(U->getContext(), FPMathTag), Folder() {
500 SetCurrentDebugLocation(cast<Instruction>(U.getUser())->getDebugLoc());
503 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F,
504 MDNode *FPMathTag = nullptr)
505 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
506 SetInsertPoint(TheBB, IP);
509 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP,
510 MDNode *FPMathTag = nullptr)
511 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
512 SetInsertPoint(TheBB, IP);
515 /// \brief Get the constant folder being used.
516 const T &getFolder() { return Folder; }
518 /// \brief Return true if this builder is configured to actually add the
519 /// requested names to IR created through it.
520 bool isNamePreserving() const { return preserveNames; }
522 /// \brief Insert and return the specified instruction.
523 template<typename InstTy>
524 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
525 this->InsertHelper(I, Name, BB, InsertPt);
526 this->SetInstDebugLocation(I);
530 /// \brief No-op overload to handle constants.
531 Constant *Insert(Constant *C, const Twine& = "") const {
535 //===--------------------------------------------------------------------===//
536 // Instruction creation methods: Terminators
537 //===--------------------------------------------------------------------===//
540 /// \brief Helper to add branch weight metadata onto an instruction.
541 /// \returns The annotated instruction.
542 template <typename InstTy>
543 InstTy *addBranchWeights(InstTy *I, MDNode *Weights) {
545 I->setMetadata(LLVMContext::MD_prof, Weights);
550 /// \brief Create a 'ret void' instruction.
551 ReturnInst *CreateRetVoid() {
552 return Insert(ReturnInst::Create(Context));
555 /// \brief Create a 'ret <val>' instruction.
556 ReturnInst *CreateRet(Value *V) {
557 return Insert(ReturnInst::Create(Context, V));
560 /// \brief Create a sequence of N insertvalue instructions,
561 /// with one Value from the retVals array each, that build a aggregate
562 /// return value one value at a time, and a ret instruction to return
563 /// the resulting aggregate value.
565 /// This is a convenience function for code that uses aggregate return values
566 /// as a vehicle for having multiple return values.
567 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
568 Value *V = UndefValue::get(getCurrentFunctionReturnType());
569 for (unsigned i = 0; i != N; ++i)
570 V = CreateInsertValue(V, retVals[i], i, "mrv");
571 return Insert(ReturnInst::Create(Context, V));
574 /// \brief Create an unconditional 'br label X' instruction.
575 BranchInst *CreateBr(BasicBlock *Dest) {
576 return Insert(BranchInst::Create(Dest));
579 /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
581 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
582 MDNode *BranchWeights = nullptr) {
583 return Insert(addBranchWeights(BranchInst::Create(True, False, Cond),
587 /// \brief Create a switch instruction with the specified value, default dest,
588 /// and with a hint for the number of cases that will be added (for efficient
590 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10,
591 MDNode *BranchWeights = nullptr) {
592 return Insert(addBranchWeights(SwitchInst::Create(V, Dest, NumCases),
596 /// \brief Create an indirect branch instruction with the specified address
597 /// operand, with an optional hint for the number of destinations that will be
598 /// added (for efficient allocation).
599 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
600 return Insert(IndirectBrInst::Create(Addr, NumDests));
603 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
604 BasicBlock *UnwindDest, const Twine &Name = "") {
605 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, None),
608 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
609 BasicBlock *UnwindDest, Value *Arg1,
610 const Twine &Name = "") {
611 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Arg1),
614 InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
615 BasicBlock *UnwindDest, Value *Arg1,
616 Value *Arg2, Value *Arg3,
617 const Twine &Name = "") {
618 Value *Args[] = { Arg1, Arg2, Arg3 };
619 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
622 /// \brief Create an invoke instruction.
623 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
624 BasicBlock *UnwindDest, ArrayRef<Value *> Args,
625 const Twine &Name = "") {
626 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
630 ResumeInst *CreateResume(Value *Exn) {
631 return Insert(ResumeInst::Create(Exn));
634 UnreachableInst *CreateUnreachable() {
635 return Insert(new UnreachableInst(Context));
638 //===--------------------------------------------------------------------===//
639 // Instruction creation methods: Binary Operators
640 //===--------------------------------------------------------------------===//
642 BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
643 Value *LHS, Value *RHS,
645 bool HasNUW, bool HasNSW) {
646 BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
647 if (HasNUW) BO->setHasNoUnsignedWrap();
648 if (HasNSW) BO->setHasNoSignedWrap();
652 Instruction *AddFPMathAttributes(Instruction *I,
654 FastMathFlags FMF) const {
656 FPMathTag = DefaultFPMathTag;
658 I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
659 I->setFastMathFlags(FMF);
663 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
664 bool HasNUW = false, bool HasNSW = false) {
665 if (Constant *LC = dyn_cast<Constant>(LHS))
666 if (Constant *RC = dyn_cast<Constant>(RHS))
667 return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
668 return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
671 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
672 return CreateAdd(LHS, RHS, Name, false, true);
674 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
675 return CreateAdd(LHS, RHS, Name, true, false);
677 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
678 MDNode *FPMathTag = nullptr) {
679 if (Constant *LC = dyn_cast<Constant>(LHS))
680 if (Constant *RC = dyn_cast<Constant>(RHS))
681 return Insert(Folder.CreateFAdd(LC, RC), Name);
682 return Insert(AddFPMathAttributes(BinaryOperator::CreateFAdd(LHS, RHS),
683 FPMathTag, FMF), Name);
685 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
686 bool HasNUW = false, bool HasNSW = false) {
687 if (Constant *LC = dyn_cast<Constant>(LHS))
688 if (Constant *RC = dyn_cast<Constant>(RHS))
689 return Insert(Folder.CreateSub(LC, RC, HasNUW, HasNSW), Name);
690 return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
693 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
694 return CreateSub(LHS, RHS, Name, false, true);
696 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
697 return CreateSub(LHS, RHS, Name, true, false);
699 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
700 MDNode *FPMathTag = nullptr) {
701 if (Constant *LC = dyn_cast<Constant>(LHS))
702 if (Constant *RC = dyn_cast<Constant>(RHS))
703 return Insert(Folder.CreateFSub(LC, RC), Name);
704 return Insert(AddFPMathAttributes(BinaryOperator::CreateFSub(LHS, RHS),
705 FPMathTag, FMF), Name);
707 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
708 bool HasNUW = false, bool HasNSW = false) {
709 if (Constant *LC = dyn_cast<Constant>(LHS))
710 if (Constant *RC = dyn_cast<Constant>(RHS))
711 return Insert(Folder.CreateMul(LC, RC, HasNUW, HasNSW), Name);
712 return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
715 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
716 return CreateMul(LHS, RHS, Name, false, true);
718 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
719 return CreateMul(LHS, RHS, Name, true, false);
721 Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "",
722 MDNode *FPMathTag = nullptr) {
723 if (Constant *LC = dyn_cast<Constant>(LHS))
724 if (Constant *RC = dyn_cast<Constant>(RHS))
725 return Insert(Folder.CreateFMul(LC, RC), Name);
726 return Insert(AddFPMathAttributes(BinaryOperator::CreateFMul(LHS, RHS),
727 FPMathTag, FMF), Name);
729 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
730 bool isExact = false) {
731 if (Constant *LC = dyn_cast<Constant>(LHS))
732 if (Constant *RC = dyn_cast<Constant>(RHS))
733 return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
735 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
736 return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
738 Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
739 return CreateUDiv(LHS, RHS, Name, true);
741 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
742 bool isExact = false) {
743 if (Constant *LC = dyn_cast<Constant>(LHS))
744 if (Constant *RC = dyn_cast<Constant>(RHS))
745 return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
747 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
748 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
750 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
751 return CreateSDiv(LHS, RHS, Name, true);
753 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
754 MDNode *FPMathTag = nullptr) {
755 if (Constant *LC = dyn_cast<Constant>(LHS))
756 if (Constant *RC = dyn_cast<Constant>(RHS))
757 return Insert(Folder.CreateFDiv(LC, RC), Name);
758 return Insert(AddFPMathAttributes(BinaryOperator::CreateFDiv(LHS, RHS),
759 FPMathTag, FMF), Name);
761 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
762 if (Constant *LC = dyn_cast<Constant>(LHS))
763 if (Constant *RC = dyn_cast<Constant>(RHS))
764 return Insert(Folder.CreateURem(LC, RC), Name);
765 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
767 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
768 if (Constant *LC = dyn_cast<Constant>(LHS))
769 if (Constant *RC = dyn_cast<Constant>(RHS))
770 return Insert(Folder.CreateSRem(LC, RC), Name);
771 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
773 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
774 MDNode *FPMathTag = nullptr) {
775 if (Constant *LC = dyn_cast<Constant>(LHS))
776 if (Constant *RC = dyn_cast<Constant>(RHS))
777 return Insert(Folder.CreateFRem(LC, RC), Name);
778 return Insert(AddFPMathAttributes(BinaryOperator::CreateFRem(LHS, RHS),
779 FPMathTag, FMF), Name);
782 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
783 bool HasNUW = false, bool HasNSW = false) {
784 if (Constant *LC = dyn_cast<Constant>(LHS))
785 if (Constant *RC = dyn_cast<Constant>(RHS))
786 return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
787 return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
790 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
791 bool HasNUW = false, bool HasNSW = false) {
792 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
795 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
796 bool HasNUW = false, bool HasNSW = false) {
797 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
801 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
802 bool isExact = false) {
803 if (Constant *LC = dyn_cast<Constant>(LHS))
804 if (Constant *RC = dyn_cast<Constant>(RHS))
805 return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
807 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
808 return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
810 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
811 bool isExact = false) {
812 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
814 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
815 bool isExact = false) {
816 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
819 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
820 bool isExact = false) {
821 if (Constant *LC = dyn_cast<Constant>(LHS))
822 if (Constant *RC = dyn_cast<Constant>(RHS))
823 return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
825 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
826 return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
828 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
829 bool isExact = false) {
830 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
832 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
833 bool isExact = false) {
834 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
837 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
838 if (Constant *RC = dyn_cast<Constant>(RHS)) {
839 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
840 return LHS; // LHS & -1 -> LHS
841 if (Constant *LC = dyn_cast<Constant>(LHS))
842 return Insert(Folder.CreateAnd(LC, RC), Name);
844 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
846 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
847 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
849 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
850 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
853 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
854 if (Constant *RC = dyn_cast<Constant>(RHS)) {
855 if (RC->isNullValue())
856 return LHS; // LHS | 0 -> LHS
857 if (Constant *LC = dyn_cast<Constant>(LHS))
858 return Insert(Folder.CreateOr(LC, RC), Name);
860 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
862 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
863 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
865 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
866 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
869 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
870 if (Constant *LC = dyn_cast<Constant>(LHS))
871 if (Constant *RC = dyn_cast<Constant>(RHS))
872 return Insert(Folder.CreateXor(LC, RC), Name);
873 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
875 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
876 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
878 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
879 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
882 Value *CreateBinOp(Instruction::BinaryOps Opc,
883 Value *LHS, Value *RHS, const Twine &Name = "",
884 MDNode *FPMathTag = nullptr) {
885 if (Constant *LC = dyn_cast<Constant>(LHS))
886 if (Constant *RC = dyn_cast<Constant>(RHS))
887 return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
888 llvm::Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
889 if (isa<FPMathOperator>(BinOp))
890 BinOp = AddFPMathAttributes(BinOp, FPMathTag, FMF);
891 return Insert(BinOp, Name);
894 Value *CreateNeg(Value *V, const Twine &Name = "",
895 bool HasNUW = false, bool HasNSW = false) {
896 if (Constant *VC = dyn_cast<Constant>(V))
897 return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
898 BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
899 if (HasNUW) BO->setHasNoUnsignedWrap();
900 if (HasNSW) BO->setHasNoSignedWrap();
903 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
904 return CreateNeg(V, Name, false, true);
906 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
907 return CreateNeg(V, Name, true, false);
909 Value *CreateFNeg(Value *V, const Twine &Name = "",
910 MDNode *FPMathTag = nullptr) {
911 if (Constant *VC = dyn_cast<Constant>(V))
912 return Insert(Folder.CreateFNeg(VC), Name);
913 return Insert(AddFPMathAttributes(BinaryOperator::CreateFNeg(V),
914 FPMathTag, FMF), Name);
916 Value *CreateNot(Value *V, const Twine &Name = "") {
917 if (Constant *VC = dyn_cast<Constant>(V))
918 return Insert(Folder.CreateNot(VC), Name);
919 return Insert(BinaryOperator::CreateNot(V), Name);
922 //===--------------------------------------------------------------------===//
923 // Instruction creation methods: Memory Instructions
924 //===--------------------------------------------------------------------===//
926 AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = nullptr,
927 const Twine &Name = "") {
928 return Insert(new AllocaInst(Ty, ArraySize), Name);
930 // \brief Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
931 // converting the string to 'bool' for the isVolatile parameter.
932 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
933 return Insert(new LoadInst(Ptr), Name);
935 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
936 return Insert(new LoadInst(Ptr), Name);
938 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
939 return Insert(new LoadInst(Ptr, nullptr, isVolatile), Name);
941 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
942 return Insert(new StoreInst(Val, Ptr, isVolatile));
944 // \brief Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")'
945 // correctly, instead of converting the string to 'bool' for the isVolatile
947 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
948 LoadInst *LI = CreateLoad(Ptr, Name);
949 LI->setAlignment(Align);
952 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
953 const Twine &Name = "") {
954 LoadInst *LI = CreateLoad(Ptr, Name);
955 LI->setAlignment(Align);
958 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
959 const Twine &Name = "") {
960 LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
961 LI->setAlignment(Align);
964 StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
965 bool isVolatile = false) {
966 StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
967 SI->setAlignment(Align);
970 FenceInst *CreateFence(AtomicOrdering Ordering,
971 SynchronizationScope SynchScope = CrossThread,
972 const Twine &Name = "") {
973 return Insert(new FenceInst(Context, Ordering, SynchScope), Name);
976 CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
977 AtomicOrdering SuccessOrdering,
978 AtomicOrdering FailureOrdering,
979 SynchronizationScope SynchScope = CrossThread) {
980 return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering,
981 FailureOrdering, SynchScope));
983 AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
984 AtomicOrdering Ordering,
985 SynchronizationScope SynchScope = CrossThread) {
986 return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
988 Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
989 const Twine &Name = "") {
990 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
991 // Every index must be constant.
993 for (i = 0, e = IdxList.size(); i != e; ++i)
994 if (!isa<Constant>(IdxList[i]))
997 return Insert(Folder.CreateGetElementPtr(PC, IdxList), Name);
999 return Insert(GetElementPtrInst::Create(Ptr, IdxList), Name);
1001 Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1002 const Twine &Name = "") {
1003 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1004 // Every index must be constant.
1006 for (i = 0, e = IdxList.size(); i != e; ++i)
1007 if (!isa<Constant>(IdxList[i]))
1010 return Insert(Folder.CreateInBoundsGetElementPtr(PC, IdxList), Name);
1012 return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxList), Name);
1014 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
1015 if (Constant *PC = dyn_cast<Constant>(Ptr))
1016 if (Constant *IC = dyn_cast<Constant>(Idx))
1017 return Insert(Folder.CreateGetElementPtr(PC, IC), Name);
1018 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
1020 Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
1021 if (Constant *PC = dyn_cast<Constant>(Ptr))
1022 if (Constant *IC = dyn_cast<Constant>(Idx))
1023 return Insert(Folder.CreateInBoundsGetElementPtr(PC, IC), Name);
1024 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
1026 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
1027 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1029 if (Constant *PC = dyn_cast<Constant>(Ptr))
1030 return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
1032 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
1034 Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
1035 const Twine &Name = "") {
1036 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1038 if (Constant *PC = dyn_cast<Constant>(Ptr))
1039 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
1041 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
1043 Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
1044 const Twine &Name = "") {
1046 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1047 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1050 if (Constant *PC = dyn_cast<Constant>(Ptr))
1051 return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
1053 return Insert(GetElementPtrInst::Create(Ptr, Idxs), Name);
1055 Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
1056 const Twine &Name = "") {
1058 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1059 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1062 if (Constant *PC = dyn_cast<Constant>(Ptr))
1063 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
1065 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), Name);
1067 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
1068 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1070 if (Constant *PC = dyn_cast<Constant>(Ptr))
1071 return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
1073 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
1075 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
1076 const Twine &Name = "") {
1077 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1079 if (Constant *PC = dyn_cast<Constant>(Ptr))
1080 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
1082 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
1084 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1085 const Twine &Name = "") {
1087 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1088 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1091 if (Constant *PC = dyn_cast<Constant>(Ptr))
1092 return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
1094 return Insert(GetElementPtrInst::Create(Ptr, Idxs), Name);
1096 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1097 const Twine &Name = "") {
1099 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1100 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1103 if (Constant *PC = dyn_cast<Constant>(Ptr))
1104 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
1106 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), Name);
1108 Value *CreateStructGEP(Value *Ptr, unsigned Idx, const Twine &Name = "") {
1109 return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
1112 /// \brief Same as CreateGlobalString, but return a pointer with "i8*" type
1113 /// instead of a pointer to array of i8.
1114 Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "") {
1115 Value *gv = CreateGlobalString(Str, Name);
1116 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
1117 Value *Args[] = { zero, zero };
1118 return CreateInBoundsGEP(gv, Args, Name);
1121 //===--------------------------------------------------------------------===//
1122 // Instruction creation methods: Cast/Conversion Operators
1123 //===--------------------------------------------------------------------===//
1125 Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
1126 return CreateCast(Instruction::Trunc, V, DestTy, Name);
1128 Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
1129 return CreateCast(Instruction::ZExt, V, DestTy, Name);
1131 Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
1132 return CreateCast(Instruction::SExt, V, DestTy, Name);
1134 /// \brief Create a ZExt or Trunc from the integer value V to DestTy. Return
1135 /// the value untouched if the type of V is already DestTy.
1136 Value *CreateZExtOrTrunc(Value *V, Type *DestTy,
1137 const Twine &Name = "") {
1138 assert(V->getType()->isIntOrIntVectorTy() &&
1139 DestTy->isIntOrIntVectorTy() &&
1140 "Can only zero extend/truncate integers!");
1141 Type *VTy = V->getType();
1142 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1143 return CreateZExt(V, DestTy, Name);
1144 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1145 return CreateTrunc(V, DestTy, Name);
1148 /// \brief Create a SExt or Trunc from the integer value V to DestTy. Return
1149 /// the value untouched if the type of V is already DestTy.
1150 Value *CreateSExtOrTrunc(Value *V, Type *DestTy,
1151 const Twine &Name = "") {
1152 assert(V->getType()->isIntOrIntVectorTy() &&
1153 DestTy->isIntOrIntVectorTy() &&
1154 "Can only sign extend/truncate integers!");
1155 Type *VTy = V->getType();
1156 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1157 return CreateSExt(V, DestTy, Name);
1158 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1159 return CreateTrunc(V, DestTy, Name);
1162 Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
1163 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
1165 Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
1166 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
1168 Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1169 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
1171 Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1172 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
1174 Value *CreateFPTrunc(Value *V, Type *DestTy,
1175 const Twine &Name = "") {
1176 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
1178 Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
1179 return CreateCast(Instruction::FPExt, V, DestTy, Name);
1181 Value *CreatePtrToInt(Value *V, Type *DestTy,
1182 const Twine &Name = "") {
1183 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
1185 Value *CreateIntToPtr(Value *V, Type *DestTy,
1186 const Twine &Name = "") {
1187 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
1189 Value *CreateBitCast(Value *V, Type *DestTy,
1190 const Twine &Name = "") {
1191 return CreateCast(Instruction::BitCast, V, DestTy, Name);
1193 Value *CreateAddrSpaceCast(Value *V, Type *DestTy,
1194 const Twine &Name = "") {
1195 return CreateCast(Instruction::AddrSpaceCast, V, DestTy, Name);
1197 Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
1198 const Twine &Name = "") {
1199 if (V->getType() == DestTy)
1201 if (Constant *VC = dyn_cast<Constant>(V))
1202 return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
1203 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
1205 Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
1206 const Twine &Name = "") {
1207 if (V->getType() == DestTy)
1209 if (Constant *VC = dyn_cast<Constant>(V))
1210 return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
1211 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
1213 Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
1214 const Twine &Name = "") {
1215 if (V->getType() == DestTy)
1217 if (Constant *VC = dyn_cast<Constant>(V))
1218 return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
1219 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
1221 Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
1222 const Twine &Name = "") {
1223 if (V->getType() == DestTy)
1225 if (Constant *VC = dyn_cast<Constant>(V))
1226 return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
1227 return Insert(CastInst::Create(Op, V, DestTy), Name);
1229 Value *CreatePointerCast(Value *V, Type *DestTy,
1230 const Twine &Name = "") {
1231 if (V->getType() == DestTy)
1233 if (Constant *VC = dyn_cast<Constant>(V))
1234 return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
1235 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
1238 Value *CreatePointerBitCastOrAddrSpaceCast(Value *V, Type *DestTy,
1239 const Twine &Name = "") {
1240 if (V->getType() == DestTy)
1243 if (Constant *VC = dyn_cast<Constant>(V)) {
1244 return Insert(Folder.CreatePointerBitCastOrAddrSpaceCast(VC, DestTy),
1248 return Insert(CastInst::CreatePointerBitCastOrAddrSpaceCast(V, DestTy),
1252 Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
1253 const Twine &Name = "") {
1254 if (V->getType() == DestTy)
1256 if (Constant *VC = dyn_cast<Constant>(V))
1257 return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
1258 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
1261 // \brief Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a
1262 // compile time error, instead of converting the string to bool for the
1263 // isSigned parameter.
1264 Value *CreateIntCast(Value *, Type *, const char *) LLVM_DELETED_FUNCTION;
1266 Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
1267 if (V->getType() == DestTy)
1269 if (Constant *VC = dyn_cast<Constant>(V))
1270 return Insert(Folder.CreateFPCast(VC, DestTy), Name);
1271 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
1274 //===--------------------------------------------------------------------===//
1275 // Instruction creation methods: Compare Instructions
1276 //===--------------------------------------------------------------------===//
1278 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1279 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
1281 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1282 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
1284 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1285 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
1287 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1288 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
1290 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1291 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
1293 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1294 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
1296 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1297 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
1299 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1300 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
1302 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1303 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
1305 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1306 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
1309 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1310 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
1312 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1313 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
1315 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1316 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
1318 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1319 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
1321 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1322 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
1324 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "") {
1325 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
1327 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "") {
1328 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
1330 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "") {
1331 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
1333 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1334 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
1336 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1337 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
1339 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1340 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
1342 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1343 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
1345 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1346 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
1348 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1349 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
1352 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1353 const Twine &Name = "") {
1354 if (Constant *LC = dyn_cast<Constant>(LHS))
1355 if (Constant *RC = dyn_cast<Constant>(RHS))
1356 return Insert(Folder.CreateICmp(P, LC, RC), Name);
1357 return Insert(new ICmpInst(P, LHS, RHS), Name);
1359 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1360 const Twine &Name = "") {
1361 if (Constant *LC = dyn_cast<Constant>(LHS))
1362 if (Constant *RC = dyn_cast<Constant>(RHS))
1363 return Insert(Folder.CreateFCmp(P, LC, RC), Name);
1364 return Insert(new FCmpInst(P, LHS, RHS), Name);
1367 //===--------------------------------------------------------------------===//
1368 // Instruction creation methods: Other Instructions
1369 //===--------------------------------------------------------------------===//
1371 PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
1372 const Twine &Name = "") {
1373 return Insert(PHINode::Create(Ty, NumReservedValues), Name);
1376 CallInst *CreateCall(Value *Callee, const Twine &Name = "") {
1377 return Insert(CallInst::Create(Callee), Name);
1379 CallInst *CreateCall(Value *Callee, Value *Arg, const Twine &Name = "") {
1380 return Insert(CallInst::Create(Callee, Arg), Name);
1382 CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
1383 const Twine &Name = "") {
1384 Value *Args[] = { Arg1, Arg2 };
1385 return Insert(CallInst::Create(Callee, Args), Name);
1387 CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1388 const Twine &Name = "") {
1389 Value *Args[] = { Arg1, Arg2, Arg3 };
1390 return Insert(CallInst::Create(Callee, Args), Name);
1392 CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1393 Value *Arg4, const Twine &Name = "") {
1394 Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
1395 return Insert(CallInst::Create(Callee, Args), Name);
1397 CallInst *CreateCall5(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1398 Value *Arg4, Value *Arg5, const Twine &Name = "") {
1399 Value *Args[] = { Arg1, Arg2, Arg3, Arg4, Arg5 };
1400 return Insert(CallInst::Create(Callee, Args), Name);
1403 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
1404 const Twine &Name = "") {
1405 return Insert(CallInst::Create(Callee, Args), Name);
1408 Value *CreateSelect(Value *C, Value *True, Value *False,
1409 const Twine &Name = "") {
1410 if (Constant *CC = dyn_cast<Constant>(C))
1411 if (Constant *TC = dyn_cast<Constant>(True))
1412 if (Constant *FC = dyn_cast<Constant>(False))
1413 return Insert(Folder.CreateSelect(CC, TC, FC), Name);
1414 return Insert(SelectInst::Create(C, True, False), Name);
1417 VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
1418 return Insert(new VAArgInst(List, Ty), Name);
1421 Value *CreateExtractElement(Value *Vec, Value *Idx,
1422 const Twine &Name = "") {
1423 if (Constant *VC = dyn_cast<Constant>(Vec))
1424 if (Constant *IC = dyn_cast<Constant>(Idx))
1425 return Insert(Folder.CreateExtractElement(VC, IC), Name);
1426 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1429 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1430 const Twine &Name = "") {
1431 if (Constant *VC = dyn_cast<Constant>(Vec))
1432 if (Constant *NC = dyn_cast<Constant>(NewElt))
1433 if (Constant *IC = dyn_cast<Constant>(Idx))
1434 return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
1435 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1438 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1439 const Twine &Name = "") {
1440 if (Constant *V1C = dyn_cast<Constant>(V1))
1441 if (Constant *V2C = dyn_cast<Constant>(V2))
1442 if (Constant *MC = dyn_cast<Constant>(Mask))
1443 return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
1444 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1447 Value *CreateExtractValue(Value *Agg,
1448 ArrayRef<unsigned> Idxs,
1449 const Twine &Name = "") {
1450 if (Constant *AggC = dyn_cast<Constant>(Agg))
1451 return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
1452 return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
1455 Value *CreateInsertValue(Value *Agg, Value *Val,
1456 ArrayRef<unsigned> Idxs,
1457 const Twine &Name = "") {
1458 if (Constant *AggC = dyn_cast<Constant>(Agg))
1459 if (Constant *ValC = dyn_cast<Constant>(Val))
1460 return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
1461 return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
1464 LandingPadInst *CreateLandingPad(Type *Ty, Value *PersFn, unsigned NumClauses,
1465 const Twine &Name = "") {
1466 return Insert(LandingPadInst::Create(Ty, PersFn, NumClauses), Name);
1469 //===--------------------------------------------------------------------===//
1470 // Utility creation methods
1471 //===--------------------------------------------------------------------===//
1473 /// \brief Return an i1 value testing if \p Arg is null.
1474 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1475 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1479 /// \brief Return an i1 value testing if \p Arg is not null.
1480 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1481 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1485 /// \brief Return the i64 difference between two pointer values, dividing out
1486 /// the size of the pointed-to objects.
1488 /// This is intended to implement C-style pointer subtraction. As such, the
1489 /// pointers must be appropriately aligned for their element types and
1490 /// pointing into the same object.
1491 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1492 assert(LHS->getType() == RHS->getType() &&
1493 "Pointer subtraction operand types must match!");
1494 PointerType *ArgType = cast<PointerType>(LHS->getType());
1495 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1496 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1497 Value *Difference = CreateSub(LHS_int, RHS_int);
1498 return CreateExactSDiv(Difference,
1499 ConstantExpr::getSizeOf(ArgType->getElementType()),
1503 /// \brief Return a vector value that contains \arg V broadcasted to \p
1504 /// NumElts elements.
1505 Value *CreateVectorSplat(unsigned NumElts, Value *V, const Twine &Name = "") {
1506 assert(NumElts > 0 && "Cannot splat to an empty vector!");
1508 // First insert it into an undef vector so we can shuffle it.
1509 Type *I32Ty = getInt32Ty();
1510 Value *Undef = UndefValue::get(VectorType::get(V->getType(), NumElts));
1511 V = CreateInsertElement(Undef, V, ConstantInt::get(I32Ty, 0),
1512 Name + ".splatinsert");
1514 // Shuffle the value across the desired number of elements.
1515 Value *Zeros = ConstantAggregateZero::get(VectorType::get(I32Ty, NumElts));
1516 return CreateShuffleVector(V, Undef, Zeros, Name + ".splat");
1519 /// \brief Return a value that has been extracted from a larger integer type.
1520 Value *CreateExtractInteger(const DataLayout &DL, Value *From,
1521 IntegerType *ExtractedTy, uint64_t Offset,
1522 const Twine &Name) {
1523 IntegerType *IntTy = cast<IntegerType>(From->getType());
1524 assert(DL.getTypeStoreSize(ExtractedTy) + Offset <=
1525 DL.getTypeStoreSize(IntTy) &&
1526 "Element extends past full value");
1527 uint64_t ShAmt = 8 * Offset;
1529 if (DL.isBigEndian())
1530 ShAmt = 8 * (DL.getTypeStoreSize(IntTy) -
1531 DL.getTypeStoreSize(ExtractedTy) - Offset);
1533 V = CreateLShr(V, ShAmt, Name + ".shift");
1535 assert(ExtractedTy->getBitWidth() <= IntTy->getBitWidth() &&
1536 "Cannot extract to a larger integer!");
1537 if (ExtractedTy != IntTy) {
1538 V = CreateTrunc(V, ExtractedTy, Name + ".trunc");
1543 /// \brief Create an assume intrinsic call that represents an alignment
1544 /// assumption on the provided pointer.
1546 /// An optional offset can be provided, and if it is provided, the offset
1547 /// must be subtracted from the provided pointer to get the pointer with the
1548 /// specified alignment.
1549 CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
1551 Value *OffsetValue = nullptr) {
1552 assert(isa<PointerType>(PtrValue->getType()) &&
1553 "trying to create an alignment assumption on a non-pointer?");
1555 PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
1556 Type *IntPtrTy = getIntPtrTy(&DL, PtrTy->getAddressSpace());
1557 Value *PtrIntValue = CreatePtrToInt(PtrValue, IntPtrTy, "ptrint");
1559 Value *Mask = ConstantInt::get(IntPtrTy,
1560 Alignment > 0 ? Alignment - 1 : 0);
1562 bool IsOffsetZero = false;
1563 if (ConstantInt *CI = dyn_cast<ConstantInt>(OffsetValue))
1564 IsOffsetZero = CI->isZero();
1566 if (!IsOffsetZero) {
1567 if (OffsetValue->getType() != IntPtrTy)
1568 OffsetValue = CreateIntCast(OffsetValue, IntPtrTy, /*isSigned*/ true,
1570 PtrIntValue = CreateSub(PtrIntValue, OffsetValue, "offsetptr");
1574 Value *Zero = ConstantInt::get(IntPtrTy, 0);
1575 Value *MaskedPtr = CreateAnd(PtrIntValue, Mask, "maskedptr");
1576 Value *InvCond = CreateICmpEQ(MaskedPtr, Zero, "maskcond");
1578 return CreateAssumption(InvCond);
1582 // Create wrappers for C Binding types (see CBindingWrapping.h).
1583 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(IRBuilder<>, LLVMBuilderRef)