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/None.h"
20 #include "llvm/ADT/SmallVector.h"
21 #include "llvm/ADT/StringRef.h"
22 #include "llvm/ADT/Twine.h"
23 #include "llvm/IR/BasicBlock.h"
24 #include "llvm/IR/Constant.h"
25 #include "llvm/IR/ConstantFolder.h"
26 #include "llvm/IR/Constants.h"
27 #include "llvm/IR/DataLayout.h"
28 #include "llvm/IR/DebugLoc.h"
29 #include "llvm/IR/DerivedTypes.h"
30 #include "llvm/IR/Function.h"
31 #include "llvm/IR/GlobalVariable.h"
32 #include "llvm/IR/InstrTypes.h"
33 #include "llvm/IR/Instruction.h"
34 #include "llvm/IR/Instructions.h"
35 #include "llvm/IR/Intrinsics.h"
36 #include "llvm/IR/LLVMContext.h"
37 #include "llvm/IR/Operator.h"
38 #include "llvm/IR/Type.h"
39 #include "llvm/IR/Value.h"
40 #include "llvm/IR/ValueHandle.h"
41 #include "llvm/Support/AtomicOrdering.h"
42 #include "llvm/Support/CBindingWrapping.h"
43 #include "llvm/Support/Casting.h"
44 #include "llvm-c/Types.h"
56 /// \brief This provides the default implementation of the IRBuilder
57 /// 'InsertHelper' method that is called whenever an instruction is created by
58 /// IRBuilder and needs to be inserted.
60 /// By default, this inserts the instruction at the insertion point.
61 class IRBuilderDefaultInserter {
63 void InsertHelper(Instruction *I, const Twine &Name,
64 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
65 if (BB) BB->getInstList().insert(InsertPt, I);
70 /// \brief Common base class shared among various IRBuilders.
72 DebugLoc CurDbgLocation;
76 BasicBlock::iterator InsertPt;
79 MDNode *DefaultFPMathTag;
82 ArrayRef<OperandBundleDef> DefaultOperandBundles;
85 IRBuilderBase(LLVMContext &context, MDNode *FPMathTag = nullptr,
86 ArrayRef<OperandBundleDef> OpBundles = None)
87 : Context(context), DefaultFPMathTag(FPMathTag), FMF(),
88 DefaultOperandBundles(OpBundles) {
89 ClearInsertionPoint();
92 //===--------------------------------------------------------------------===//
93 // Builder configuration methods
94 //===--------------------------------------------------------------------===//
96 /// \brief Clear the insertion point: created instructions will not be
97 /// inserted into a block.
98 void ClearInsertionPoint() {
100 InsertPt.reset(nullptr);
103 BasicBlock *GetInsertBlock() const { return BB; }
104 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
105 LLVMContext &getContext() const { return Context; }
107 /// \brief This specifies that created instructions should be appended to the
108 /// end of the specified block.
109 void SetInsertPoint(BasicBlock *TheBB) {
111 InsertPt = BB->end();
114 /// \brief This specifies that created instructions should be inserted before
115 /// the specified instruction.
116 void SetInsertPoint(Instruction *I) {
118 InsertPt = I->getIterator();
119 assert(InsertPt != BB->end() && "Can't read debug loc from end()");
120 SetCurrentDebugLocation(I->getDebugLoc());
123 /// \brief This specifies that created instructions should be inserted at the
125 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
128 if (IP != TheBB->end())
129 SetCurrentDebugLocation(IP->getDebugLoc());
132 /// \brief Set location information used by debugging information.
133 void SetCurrentDebugLocation(DebugLoc L) { CurDbgLocation = std::move(L); }
135 /// \brief Get location information used by debugging information.
136 const DebugLoc &getCurrentDebugLocation() const { return CurDbgLocation; }
138 /// \brief If this builder has a current debug location, set it on the
139 /// specified instruction.
140 void SetInstDebugLocation(Instruction *I) const {
142 I->setDebugLoc(CurDbgLocation);
145 /// \brief Get the return type of the current function that we're emitting
147 Type *getCurrentFunctionReturnType() const;
149 /// InsertPoint - A saved insertion point.
152 BasicBlock::iterator Point;
155 /// \brief Creates a new insertion point which doesn't point to anything.
156 InsertPoint() : Block(nullptr) {}
158 /// \brief Creates a new insertion point at the given location.
159 InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
160 : Block(InsertBlock), Point(InsertPoint) {}
162 /// \brief Returns true if this insert point is set.
163 bool isSet() const { return (Block != nullptr); }
165 llvm::BasicBlock *getBlock() const { return Block; }
166 llvm::BasicBlock::iterator getPoint() const { return Point; }
169 /// \brief Returns the current insert point.
170 InsertPoint saveIP() const {
171 return InsertPoint(GetInsertBlock(), GetInsertPoint());
174 /// \brief Returns the current insert point, clearing it in the process.
175 InsertPoint saveAndClearIP() {
176 InsertPoint IP(GetInsertBlock(), GetInsertPoint());
177 ClearInsertionPoint();
181 /// \brief Sets the current insert point to a previously-saved location.
182 void restoreIP(InsertPoint IP) {
184 SetInsertPoint(IP.getBlock(), IP.getPoint());
186 ClearInsertionPoint();
189 /// \brief Get the floating point math metadata being used.
190 MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
192 /// \brief Get the flags to be applied to created floating point ops
193 FastMathFlags getFastMathFlags() const { return FMF; }
195 /// \brief Clear the fast-math flags.
196 void clearFastMathFlags() { FMF.clear(); }
198 /// \brief Set the floating point math metadata to be used.
199 void setDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
201 /// \brief Set the fast-math flags to be used with generated fp-math operators
202 void setFastMathFlags(FastMathFlags NewFMF) { FMF = NewFMF; }
204 //===--------------------------------------------------------------------===//
206 //===--------------------------------------------------------------------===//
208 // \brief RAII object that stores the current insertion point and restores it
209 // when the object is destroyed. This includes the debug location.
210 class InsertPointGuard {
211 IRBuilderBase &Builder;
212 AssertingVH<BasicBlock> Block;
213 BasicBlock::iterator Point;
216 InsertPointGuard(const InsertPointGuard &) = delete;
217 InsertPointGuard &operator=(const InsertPointGuard &) = delete;
220 InsertPointGuard(IRBuilderBase &B)
221 : Builder(B), Block(B.GetInsertBlock()), Point(B.GetInsertPoint()),
222 DbgLoc(B.getCurrentDebugLocation()) {}
224 ~InsertPointGuard() {
225 Builder.restoreIP(InsertPoint(Block, Point));
226 Builder.SetCurrentDebugLocation(DbgLoc);
230 // \brief RAII object that stores the current fast math settings and restores
231 // them when the object is destroyed.
232 class FastMathFlagGuard {
233 IRBuilderBase &Builder;
237 FastMathFlagGuard(const FastMathFlagGuard &) = delete;
238 FastMathFlagGuard &operator=(
239 const FastMathFlagGuard &) = delete;
242 FastMathFlagGuard(IRBuilderBase &B)
243 : Builder(B), FMF(B.FMF), FPMathTag(B.DefaultFPMathTag) {}
245 ~FastMathFlagGuard() {
247 Builder.DefaultFPMathTag = FPMathTag;
251 //===--------------------------------------------------------------------===//
252 // Miscellaneous creation methods.
253 //===--------------------------------------------------------------------===//
255 /// \brief Make a new global variable with initializer type i8*
257 /// Make a new global variable with an initializer that has array of i8 type
258 /// filled in with the null terminated string value specified. The new global
259 /// variable will be marked mergable with any others of the same contents. If
260 /// Name is specified, it is the name of the global variable created.
261 GlobalVariable *CreateGlobalString(StringRef Str, const Twine &Name = "",
262 unsigned AddressSpace = 0);
264 /// \brief Get a constant value representing either true or false.
265 ConstantInt *getInt1(bool V) {
266 return ConstantInt::get(getInt1Ty(), V);
269 /// \brief Get the constant value for i1 true.
270 ConstantInt *getTrue() {
271 return ConstantInt::getTrue(Context);
274 /// \brief Get the constant value for i1 false.
275 ConstantInt *getFalse() {
276 return ConstantInt::getFalse(Context);
279 /// \brief Get a constant 8-bit value.
280 ConstantInt *getInt8(uint8_t C) {
281 return ConstantInt::get(getInt8Ty(), C);
284 /// \brief Get a constant 16-bit value.
285 ConstantInt *getInt16(uint16_t C) {
286 return ConstantInt::get(getInt16Ty(), C);
289 /// \brief Get a constant 32-bit value.
290 ConstantInt *getInt32(uint32_t C) {
291 return ConstantInt::get(getInt32Ty(), C);
294 /// \brief Get a constant 64-bit value.
295 ConstantInt *getInt64(uint64_t C) {
296 return ConstantInt::get(getInt64Ty(), C);
299 /// \brief Get a constant N-bit value, zero extended or truncated from
301 ConstantInt *getIntN(unsigned N, uint64_t C) {
302 return ConstantInt::get(getIntNTy(N), C);
305 /// \brief Get a constant integer value.
306 ConstantInt *getInt(const APInt &AI) {
307 return ConstantInt::get(Context, AI);
310 //===--------------------------------------------------------------------===//
311 // Type creation methods
312 //===--------------------------------------------------------------------===//
314 /// \brief Fetch the type representing a single bit
315 IntegerType *getInt1Ty() {
316 return Type::getInt1Ty(Context);
319 /// \brief Fetch the type representing an 8-bit integer.
320 IntegerType *getInt8Ty() {
321 return Type::getInt8Ty(Context);
324 /// \brief Fetch the type representing a 16-bit integer.
325 IntegerType *getInt16Ty() {
326 return Type::getInt16Ty(Context);
329 /// \brief Fetch the type representing a 32-bit integer.
330 IntegerType *getInt32Ty() {
331 return Type::getInt32Ty(Context);
334 /// \brief Fetch the type representing a 64-bit integer.
335 IntegerType *getInt64Ty() {
336 return Type::getInt64Ty(Context);
339 /// \brief Fetch the type representing a 128-bit integer.
340 IntegerType *getInt128Ty() { return Type::getInt128Ty(Context); }
342 /// \brief Fetch the type representing an N-bit integer.
343 IntegerType *getIntNTy(unsigned N) {
344 return Type::getIntNTy(Context, N);
347 /// \brief Fetch the type representing a 16-bit floating point value.
349 return Type::getHalfTy(Context);
352 /// \brief Fetch the type representing a 32-bit floating point value.
354 return Type::getFloatTy(Context);
357 /// \brief Fetch the type representing a 64-bit floating point value.
358 Type *getDoubleTy() {
359 return Type::getDoubleTy(Context);
362 /// \brief Fetch the type representing void.
364 return Type::getVoidTy(Context);
367 /// \brief Fetch the type representing a pointer to an 8-bit integer value.
368 PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
369 return Type::getInt8PtrTy(Context, AddrSpace);
372 /// \brief Fetch the type representing a pointer to an integer value.
373 IntegerType *getIntPtrTy(const DataLayout &DL, unsigned AddrSpace = 0) {
374 return DL.getIntPtrType(Context, AddrSpace);
377 //===--------------------------------------------------------------------===//
378 // Intrinsic creation methods
379 //===--------------------------------------------------------------------===//
381 /// \brief Create and insert a memset to the specified pointer and the
384 /// If the pointer isn't an i8*, it will be converted. If a TBAA tag is
385 /// specified, it will be added to the instruction. Likewise with alias.scope
386 /// and noalias tags.
387 CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
388 bool isVolatile = false, MDNode *TBAATag = nullptr,
389 MDNode *ScopeTag = nullptr,
390 MDNode *NoAliasTag = nullptr) {
391 return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile,
392 TBAATag, ScopeTag, NoAliasTag);
395 CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
396 bool isVolatile = false, MDNode *TBAATag = nullptr,
397 MDNode *ScopeTag = nullptr,
398 MDNode *NoAliasTag = nullptr);
400 /// \brief Create and insert a memcpy between the specified pointers.
402 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
403 /// specified, it will be added to the instruction. Likewise with alias.scope
404 /// and noalias tags.
405 CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
406 bool isVolatile = false, MDNode *TBAATag = nullptr,
407 MDNode *TBAAStructTag = nullptr,
408 MDNode *ScopeTag = nullptr,
409 MDNode *NoAliasTag = nullptr) {
410 return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
411 TBAAStructTag, ScopeTag, NoAliasTag);
414 CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
415 bool isVolatile = false, MDNode *TBAATag = nullptr,
416 MDNode *TBAAStructTag = nullptr,
417 MDNode *ScopeTag = nullptr,
418 MDNode *NoAliasTag = nullptr);
420 /// \brief Create and insert a memmove between the specified
423 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
424 /// specified, it will be added to the instruction. Likewise with alias.scope
425 /// and noalias tags.
426 CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
427 bool isVolatile = false, MDNode *TBAATag = nullptr,
428 MDNode *ScopeTag = nullptr,
429 MDNode *NoAliasTag = nullptr) {
430 return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile,
431 TBAATag, ScopeTag, NoAliasTag);
434 CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
435 bool isVolatile = false, MDNode *TBAATag = nullptr,
436 MDNode *ScopeTag = nullptr,
437 MDNode *NoAliasTag = nullptr);
439 /// \brief Create a lifetime.start intrinsic.
441 /// If the pointer isn't i8* it will be converted.
442 CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = nullptr);
444 /// \brief Create a lifetime.end intrinsic.
446 /// If the pointer isn't i8* it will be converted.
447 CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
449 /// \brief Create a call to Masked Load intrinsic
450 CallInst *CreateMaskedLoad(Value *Ptr, unsigned Align, Value *Mask,
451 Value *PassThru = nullptr, const Twine &Name = "");
453 /// \brief Create a call to Masked Store intrinsic
454 CallInst *CreateMaskedStore(Value *Val, Value *Ptr, unsigned Align,
457 /// \brief Create a call to Masked Gather intrinsic
458 CallInst *CreateMaskedGather(Value *Ptrs, unsigned Align,
459 Value *Mask = nullptr,
460 Value *PassThru = nullptr,
461 const Twine& Name = "");
463 /// \brief Create a call to Masked Scatter intrinsic
464 CallInst *CreateMaskedScatter(Value *Val, Value *Ptrs, unsigned Align,
465 Value *Mask = nullptr);
467 /// \brief Create an assume intrinsic call that allows the optimizer to
468 /// assume that the provided condition will be true.
469 CallInst *CreateAssumption(Value *Cond);
471 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
472 /// start a new statepoint sequence.
473 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
475 ArrayRef<Value *> CallArgs,
476 ArrayRef<Value *> DeoptArgs,
477 ArrayRef<Value *> GCArgs,
478 const Twine &Name = "");
480 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
481 /// start a new statepoint sequence.
482 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
483 Value *ActualCallee, uint32_t Flags,
484 ArrayRef<Use> CallArgs,
485 ArrayRef<Use> TransitionArgs,
486 ArrayRef<Use> DeoptArgs,
487 ArrayRef<Value *> GCArgs,
488 const Twine &Name = "");
490 // \brief Conveninence function for the common case when CallArgs are filled
491 // in using makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be
492 // .get()'ed to get the Value pointer.
493 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
494 Value *ActualCallee, ArrayRef<Use> CallArgs,
495 ArrayRef<Value *> DeoptArgs,
496 ArrayRef<Value *> GCArgs,
497 const Twine &Name = "");
499 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
500 /// start a new statepoint sequence.
502 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
503 Value *ActualInvokee, BasicBlock *NormalDest,
504 BasicBlock *UnwindDest, ArrayRef<Value *> InvokeArgs,
505 ArrayRef<Value *> DeoptArgs,
506 ArrayRef<Value *> GCArgs, const Twine &Name = "");
508 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
509 /// start a new statepoint sequence.
510 InvokeInst *CreateGCStatepointInvoke(
511 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
512 BasicBlock *NormalDest, BasicBlock *UnwindDest, uint32_t Flags,
513 ArrayRef<Use> InvokeArgs, ArrayRef<Use> TransitionArgs,
514 ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs,
515 const Twine &Name = "");
517 // Conveninence function for the common case when CallArgs are filled in using
518 // makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be .get()'ed to
521 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
522 Value *ActualInvokee, BasicBlock *NormalDest,
523 BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
524 ArrayRef<Value *> DeoptArgs,
525 ArrayRef<Value *> GCArgs, const Twine &Name = "");
527 /// \brief Create a call to the experimental.gc.result intrinsic to extract
528 /// the result from a call wrapped in a statepoint.
529 CallInst *CreateGCResult(Instruction *Statepoint,
531 const Twine &Name = "");
533 /// \brief Create a call to the experimental.gc.relocate intrinsics to
534 /// project the relocated value of one pointer from the statepoint.
535 CallInst *CreateGCRelocate(Instruction *Statepoint,
539 const Twine &Name = "");
542 /// \brief Create a call to a masked intrinsic with given Id.
543 CallInst *CreateMaskedIntrinsic(Intrinsic::ID Id, ArrayRef<Value *> Ops,
544 ArrayRef<Type *> OverloadedTypes,
545 const Twine &Name = "");
547 Value *getCastedInt8PtrValue(Value *Ptr);
550 /// \brief This provides a uniform API for creating instructions and inserting
551 /// them into a basic block: either at the end of a BasicBlock, or at a specific
552 /// iterator location in a block.
554 /// Note that the builder does not expose the full generality of LLVM
555 /// instructions. For access to extra instruction properties, use the mutators
556 /// (e.g. setVolatile) on the instructions after they have been
557 /// created. Convenience state exists to specify fast-math flags and fp-math
560 /// The first template argument specifies a class to use for creating constants.
561 /// This defaults to creating minimally folded constants. The second template
562 /// argument allows clients to specify custom insertion hooks that are called on
563 /// every newly created insertion.
564 template <typename T = ConstantFolder,
565 typename Inserter = IRBuilderDefaultInserter>
566 class IRBuilder : public IRBuilderBase, public Inserter {
570 IRBuilder(LLVMContext &C, const T &F, Inserter I = Inserter(),
571 MDNode *FPMathTag = nullptr,
572 ArrayRef<OperandBundleDef> OpBundles = None)
573 : IRBuilderBase(C, FPMathTag, OpBundles), Inserter(std::move(I)),
576 explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = nullptr,
577 ArrayRef<OperandBundleDef> OpBundles = None)
578 : IRBuilderBase(C, FPMathTag, OpBundles), Folder() {}
580 explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = nullptr,
581 ArrayRef<OperandBundleDef> OpBundles = None)
582 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder(F) {
583 SetInsertPoint(TheBB);
586 explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = nullptr,
587 ArrayRef<OperandBundleDef> OpBundles = None)
588 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder() {
589 SetInsertPoint(TheBB);
592 explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = nullptr,
593 ArrayRef<OperandBundleDef> OpBundles = None)
594 : IRBuilderBase(IP->getContext(), FPMathTag, OpBundles), Folder() {
598 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T &F,
599 MDNode *FPMathTag = nullptr,
600 ArrayRef<OperandBundleDef> OpBundles = None)
601 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder(F) {
602 SetInsertPoint(TheBB, IP);
605 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP,
606 MDNode *FPMathTag = nullptr,
607 ArrayRef<OperandBundleDef> OpBundles = None)
608 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder() {
609 SetInsertPoint(TheBB, IP);
612 /// \brief Get the constant folder being used.
613 const T &getFolder() { return Folder; }
615 /// \brief Insert and return the specified instruction.
616 template<typename InstTy>
617 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
618 this->InsertHelper(I, Name, BB, InsertPt);
619 this->SetInstDebugLocation(I);
623 /// \brief No-op overload to handle constants.
624 Constant *Insert(Constant *C, const Twine& = "") const {
628 //===--------------------------------------------------------------------===//
629 // Instruction creation methods: Terminators
630 //===--------------------------------------------------------------------===//
633 /// \brief Helper to add branch weight and unpredictable metadata onto an
635 /// \returns The annotated instruction.
636 template <typename InstTy>
637 InstTy *addBranchMetadata(InstTy *I, MDNode *Weights, MDNode *Unpredictable) {
639 I->setMetadata(LLVMContext::MD_prof, Weights);
641 I->setMetadata(LLVMContext::MD_unpredictable, Unpredictable);
646 /// \brief Create a 'ret void' instruction.
647 ReturnInst *CreateRetVoid() {
648 return Insert(ReturnInst::Create(Context));
651 /// \brief Create a 'ret <val>' instruction.
652 ReturnInst *CreateRet(Value *V) {
653 return Insert(ReturnInst::Create(Context, V));
656 /// \brief Create a sequence of N insertvalue instructions,
657 /// with one Value from the retVals array each, that build a aggregate
658 /// return value one value at a time, and a ret instruction to return
659 /// the resulting aggregate value.
661 /// This is a convenience function for code that uses aggregate return values
662 /// as a vehicle for having multiple return values.
663 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
664 Value *V = UndefValue::get(getCurrentFunctionReturnType());
665 for (unsigned i = 0; i != N; ++i)
666 V = CreateInsertValue(V, retVals[i], i, "mrv");
667 return Insert(ReturnInst::Create(Context, V));
670 /// \brief Create an unconditional 'br label X' instruction.
671 BranchInst *CreateBr(BasicBlock *Dest) {
672 return Insert(BranchInst::Create(Dest));
675 /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
677 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
678 MDNode *BranchWeights = nullptr,
679 MDNode *Unpredictable = nullptr) {
680 return Insert(addBranchMetadata(BranchInst::Create(True, False, Cond),
681 BranchWeights, Unpredictable));
684 /// \brief Create a switch instruction with the specified value, default dest,
685 /// and with a hint for the number of cases that will be added (for efficient
687 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10,
688 MDNode *BranchWeights = nullptr,
689 MDNode *Unpredictable = nullptr) {
690 return Insert(addBranchMetadata(SwitchInst::Create(V, Dest, NumCases),
691 BranchWeights, Unpredictable));
694 /// \brief Create an indirect branch instruction with the specified address
695 /// operand, with an optional hint for the number of destinations that will be
696 /// added (for efficient allocation).
697 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
698 return Insert(IndirectBrInst::Create(Addr, NumDests));
701 /// \brief Create an invoke instruction.
702 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
703 BasicBlock *UnwindDest,
704 ArrayRef<Value *> Args = None,
705 const Twine &Name = "") {
706 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
709 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
710 BasicBlock *UnwindDest, ArrayRef<Value *> Args,
711 ArrayRef<OperandBundleDef> OpBundles,
712 const Twine &Name = "") {
713 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
717 ResumeInst *CreateResume(Value *Exn) {
718 return Insert(ResumeInst::Create(Exn));
721 CleanupReturnInst *CreateCleanupRet(CleanupPadInst *CleanupPad,
722 BasicBlock *UnwindBB = nullptr) {
723 return Insert(CleanupReturnInst::Create(CleanupPad, UnwindBB));
726 CatchSwitchInst *CreateCatchSwitch(Value *ParentPad, BasicBlock *UnwindBB,
727 unsigned NumHandlers,
728 const Twine &Name = "") {
729 return Insert(CatchSwitchInst::Create(ParentPad, UnwindBB, NumHandlers),
733 CatchPadInst *CreateCatchPad(Value *ParentPad, ArrayRef<Value *> Args,
734 const Twine &Name = "") {
735 return Insert(CatchPadInst::Create(ParentPad, Args), Name);
738 CleanupPadInst *CreateCleanupPad(Value *ParentPad,
739 ArrayRef<Value *> Args = None,
740 const Twine &Name = "") {
741 return Insert(CleanupPadInst::Create(ParentPad, Args), Name);
744 CatchReturnInst *CreateCatchRet(CatchPadInst *CatchPad, BasicBlock *BB) {
745 return Insert(CatchReturnInst::Create(CatchPad, BB));
748 UnreachableInst *CreateUnreachable() {
749 return Insert(new UnreachableInst(Context));
752 //===--------------------------------------------------------------------===//
753 // Instruction creation methods: Binary Operators
754 //===--------------------------------------------------------------------===//
756 BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
757 Value *LHS, Value *RHS,
759 bool HasNUW, bool HasNSW) {
760 BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
761 if (HasNUW) BO->setHasNoUnsignedWrap();
762 if (HasNSW) BO->setHasNoSignedWrap();
766 Instruction *AddFPMathAttributes(Instruction *I,
768 FastMathFlags FMF) const {
770 FPMathTag = DefaultFPMathTag;
772 I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
773 I->setFastMathFlags(FMF);
778 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
779 bool HasNUW = false, bool HasNSW = false) {
780 if (Constant *LC = dyn_cast<Constant>(LHS))
781 if (Constant *RC = dyn_cast<Constant>(RHS))
782 return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
783 return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
786 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
787 return CreateAdd(LHS, RHS, Name, false, true);
789 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
790 return CreateAdd(LHS, RHS, Name, true, false);
792 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
793 MDNode *FPMathTag = nullptr) {
794 if (Constant *LC = dyn_cast<Constant>(LHS))
795 if (Constant *RC = dyn_cast<Constant>(RHS))
796 return Insert(Folder.CreateFAdd(LC, RC), Name);
797 return Insert(AddFPMathAttributes(BinaryOperator::CreateFAdd(LHS, RHS),
798 FPMathTag, FMF), Name);
800 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
801 bool HasNUW = false, bool HasNSW = false) {
802 if (Constant *LC = dyn_cast<Constant>(LHS))
803 if (Constant *RC = dyn_cast<Constant>(RHS))
804 return Insert(Folder.CreateSub(LC, RC, HasNUW, HasNSW), Name);
805 return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
808 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
809 return CreateSub(LHS, RHS, Name, false, true);
811 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
812 return CreateSub(LHS, RHS, Name, true, false);
814 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
815 MDNode *FPMathTag = nullptr) {
816 if (Constant *LC = dyn_cast<Constant>(LHS))
817 if (Constant *RC = dyn_cast<Constant>(RHS))
818 return Insert(Folder.CreateFSub(LC, RC), Name);
819 return Insert(AddFPMathAttributes(BinaryOperator::CreateFSub(LHS, RHS),
820 FPMathTag, FMF), Name);
822 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
823 bool HasNUW = false, bool HasNSW = false) {
824 if (Constant *LC = dyn_cast<Constant>(LHS))
825 if (Constant *RC = dyn_cast<Constant>(RHS))
826 return Insert(Folder.CreateMul(LC, RC, HasNUW, HasNSW), Name);
827 return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
830 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
831 return CreateMul(LHS, RHS, Name, false, true);
833 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
834 return CreateMul(LHS, RHS, Name, true, false);
836 Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "",
837 MDNode *FPMathTag = nullptr) {
838 if (Constant *LC = dyn_cast<Constant>(LHS))
839 if (Constant *RC = dyn_cast<Constant>(RHS))
840 return Insert(Folder.CreateFMul(LC, RC), Name);
841 return Insert(AddFPMathAttributes(BinaryOperator::CreateFMul(LHS, RHS),
842 FPMathTag, FMF), Name);
844 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
845 bool isExact = false) {
846 if (Constant *LC = dyn_cast<Constant>(LHS))
847 if (Constant *RC = dyn_cast<Constant>(RHS))
848 return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
850 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
851 return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
853 Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
854 return CreateUDiv(LHS, RHS, Name, true);
856 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
857 bool isExact = false) {
858 if (Constant *LC = dyn_cast<Constant>(LHS))
859 if (Constant *RC = dyn_cast<Constant>(RHS))
860 return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
862 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
863 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
865 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
866 return CreateSDiv(LHS, RHS, Name, true);
868 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
869 MDNode *FPMathTag = nullptr) {
870 if (Constant *LC = dyn_cast<Constant>(LHS))
871 if (Constant *RC = dyn_cast<Constant>(RHS))
872 return Insert(Folder.CreateFDiv(LC, RC), Name);
873 return Insert(AddFPMathAttributes(BinaryOperator::CreateFDiv(LHS, RHS),
874 FPMathTag, FMF), Name);
876 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
877 if (Constant *LC = dyn_cast<Constant>(LHS))
878 if (Constant *RC = dyn_cast<Constant>(RHS))
879 return Insert(Folder.CreateURem(LC, RC), Name);
880 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
882 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
883 if (Constant *LC = dyn_cast<Constant>(LHS))
884 if (Constant *RC = dyn_cast<Constant>(RHS))
885 return Insert(Folder.CreateSRem(LC, RC), Name);
886 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
888 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
889 MDNode *FPMathTag = nullptr) {
890 if (Constant *LC = dyn_cast<Constant>(LHS))
891 if (Constant *RC = dyn_cast<Constant>(RHS))
892 return Insert(Folder.CreateFRem(LC, RC), Name);
893 return Insert(AddFPMathAttributes(BinaryOperator::CreateFRem(LHS, RHS),
894 FPMathTag, FMF), Name);
897 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
898 bool HasNUW = false, bool HasNSW = false) {
899 if (Constant *LC = dyn_cast<Constant>(LHS))
900 if (Constant *RC = dyn_cast<Constant>(RHS))
901 return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
902 return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
905 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
906 bool HasNUW = false, bool HasNSW = false) {
907 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
910 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
911 bool HasNUW = false, bool HasNSW = false) {
912 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
916 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
917 bool isExact = false) {
918 if (Constant *LC = dyn_cast<Constant>(LHS))
919 if (Constant *RC = dyn_cast<Constant>(RHS))
920 return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
922 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
923 return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
925 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
926 bool isExact = false) {
927 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
929 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
930 bool isExact = false) {
931 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
934 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
935 bool isExact = false) {
936 if (Constant *LC = dyn_cast<Constant>(LHS))
937 if (Constant *RC = dyn_cast<Constant>(RHS))
938 return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
940 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
941 return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
943 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
944 bool isExact = false) {
945 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
947 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
948 bool isExact = false) {
949 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
952 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
953 if (Constant *RC = dyn_cast<Constant>(RHS)) {
954 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
955 return LHS; // LHS & -1 -> LHS
956 if (Constant *LC = dyn_cast<Constant>(LHS))
957 return Insert(Folder.CreateAnd(LC, RC), Name);
959 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
961 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
962 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
964 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
965 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
968 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
969 if (Constant *RC = dyn_cast<Constant>(RHS)) {
970 if (RC->isNullValue())
971 return LHS; // LHS | 0 -> LHS
972 if (Constant *LC = dyn_cast<Constant>(LHS))
973 return Insert(Folder.CreateOr(LC, RC), Name);
975 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
977 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
978 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
980 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
981 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
984 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
985 if (Constant *LC = dyn_cast<Constant>(LHS))
986 if (Constant *RC = dyn_cast<Constant>(RHS))
987 return Insert(Folder.CreateXor(LC, RC), Name);
988 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
990 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
991 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
993 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
994 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
997 Value *CreateBinOp(Instruction::BinaryOps Opc,
998 Value *LHS, Value *RHS, const Twine &Name = "",
999 MDNode *FPMathTag = nullptr) {
1000 if (Constant *LC = dyn_cast<Constant>(LHS))
1001 if (Constant *RC = dyn_cast<Constant>(RHS))
1002 return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
1003 llvm::Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
1004 if (isa<FPMathOperator>(BinOp))
1005 BinOp = AddFPMathAttributes(BinOp, FPMathTag, FMF);
1006 return Insert(BinOp, Name);
1009 Value *CreateNeg(Value *V, const Twine &Name = "",
1010 bool HasNUW = false, bool HasNSW = false) {
1011 if (Constant *VC = dyn_cast<Constant>(V))
1012 return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
1013 BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
1014 if (HasNUW) BO->setHasNoUnsignedWrap();
1015 if (HasNSW) BO->setHasNoSignedWrap();
1018 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
1019 return CreateNeg(V, Name, false, true);
1021 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
1022 return CreateNeg(V, Name, true, false);
1024 Value *CreateFNeg(Value *V, const Twine &Name = "",
1025 MDNode *FPMathTag = nullptr) {
1026 if (Constant *VC = dyn_cast<Constant>(V))
1027 return Insert(Folder.CreateFNeg(VC), Name);
1028 return Insert(AddFPMathAttributes(BinaryOperator::CreateFNeg(V),
1029 FPMathTag, FMF), Name);
1031 Value *CreateNot(Value *V, const Twine &Name = "") {
1032 if (Constant *VC = dyn_cast<Constant>(V))
1033 return Insert(Folder.CreateNot(VC), Name);
1034 return Insert(BinaryOperator::CreateNot(V), Name);
1037 //===--------------------------------------------------------------------===//
1038 // Instruction creation methods: Memory Instructions
1039 //===--------------------------------------------------------------------===//
1041 AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = nullptr,
1042 const Twine &Name = "") {
1043 return Insert(new AllocaInst(Ty, ArraySize), Name);
1045 // \brief Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
1046 // converting the string to 'bool' for the isVolatile parameter.
1047 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
1048 return Insert(new LoadInst(Ptr), Name);
1050 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
1051 return Insert(new LoadInst(Ptr), Name);
1053 LoadInst *CreateLoad(Type *Ty, Value *Ptr, const Twine &Name = "") {
1054 return Insert(new LoadInst(Ty, Ptr), Name);
1056 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
1057 return Insert(new LoadInst(Ptr, nullptr, isVolatile), Name);
1059 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
1060 return Insert(new StoreInst(Val, Ptr, isVolatile));
1062 // \brief Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")'
1063 // correctly, instead of converting the string to 'bool' for the isVolatile
1065 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
1066 LoadInst *LI = CreateLoad(Ptr, Name);
1067 LI->setAlignment(Align);
1070 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
1071 const Twine &Name = "") {
1072 LoadInst *LI = CreateLoad(Ptr, Name);
1073 LI->setAlignment(Align);
1076 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
1077 const Twine &Name = "") {
1078 LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
1079 LI->setAlignment(Align);
1082 StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
1083 bool isVolatile = false) {
1084 StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
1085 SI->setAlignment(Align);
1088 FenceInst *CreateFence(AtomicOrdering Ordering,
1089 SynchronizationScope SynchScope = CrossThread,
1090 const Twine &Name = "") {
1091 return Insert(new FenceInst(Context, Ordering, SynchScope), Name);
1094 CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
1095 AtomicOrdering SuccessOrdering,
1096 AtomicOrdering FailureOrdering,
1097 SynchronizationScope SynchScope = CrossThread) {
1098 return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering,
1099 FailureOrdering, SynchScope));
1101 AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
1102 AtomicOrdering Ordering,
1103 SynchronizationScope SynchScope = CrossThread) {
1104 return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
1106 Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1107 const Twine &Name = "") {
1108 return CreateGEP(nullptr, Ptr, IdxList, Name);
1110 Value *CreateGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1111 const Twine &Name = "") {
1112 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1113 // Every index must be constant.
1115 for (i = 0, e = IdxList.size(); i != e; ++i)
1116 if (!isa<Constant>(IdxList[i]))
1119 return Insert(Folder.CreateGetElementPtr(Ty, PC, IdxList), Name);
1121 return Insert(GetElementPtrInst::Create(Ty, Ptr, IdxList), Name);
1123 Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1124 const Twine &Name = "") {
1125 return CreateInBoundsGEP(nullptr, Ptr, IdxList, Name);
1127 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1128 const Twine &Name = "") {
1129 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1130 // Every index must be constant.
1132 for (i = 0, e = IdxList.size(); i != e; ++i)
1133 if (!isa<Constant>(IdxList[i]))
1136 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IdxList),
1139 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, IdxList), Name);
1141 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
1142 return CreateGEP(nullptr, Ptr, Idx, Name);
1144 Value *CreateGEP(Type *Ty, Value *Ptr, Value *Idx, const Twine &Name = "") {
1145 if (Constant *PC = dyn_cast<Constant>(Ptr))
1146 if (Constant *IC = dyn_cast<Constant>(Idx))
1147 return Insert(Folder.CreateGetElementPtr(Ty, PC, IC), Name);
1148 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1150 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, Value *Idx,
1151 const Twine &Name = "") {
1152 if (Constant *PC = dyn_cast<Constant>(Ptr))
1153 if (Constant *IC = dyn_cast<Constant>(Idx))
1154 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IC), Name);
1155 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1157 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
1158 return CreateConstGEP1_32(nullptr, Ptr, Idx0, Name);
1160 Value *CreateConstGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1161 const Twine &Name = "") {
1162 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1164 if (Constant *PC = dyn_cast<Constant>(Ptr))
1165 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idx), Name);
1167 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1169 Value *CreateConstInBoundsGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1170 const Twine &Name = "") {
1171 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1173 if (Constant *PC = dyn_cast<Constant>(Ptr))
1174 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idx), Name);
1176 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1178 Value *CreateConstGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0, unsigned Idx1,
1179 const Twine &Name = "") {
1181 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1182 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1185 if (Constant *PC = dyn_cast<Constant>(Ptr))
1186 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idxs), Name);
1188 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idxs), Name);
1190 Value *CreateConstInBoundsGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0,
1191 unsigned Idx1, const Twine &Name = "") {
1193 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1194 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1197 if (Constant *PC = dyn_cast<Constant>(Ptr))
1198 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idxs), Name);
1200 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idxs), Name);
1202 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
1203 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1205 if (Constant *PC = dyn_cast<Constant>(Ptr))
1206 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idx), Name);
1208 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idx), Name);
1210 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
1211 const Twine &Name = "") {
1212 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1214 if (Constant *PC = dyn_cast<Constant>(Ptr))
1215 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idx), Name);
1217 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idx), Name);
1219 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1220 const Twine &Name = "") {
1222 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1223 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1226 if (Constant *PC = dyn_cast<Constant>(Ptr))
1227 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idxs), Name);
1229 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idxs), Name);
1231 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1232 const Twine &Name = "") {
1234 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1235 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1238 if (Constant *PC = dyn_cast<Constant>(Ptr))
1239 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idxs),
1242 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idxs), Name);
1244 Value *CreateStructGEP(Type *Ty, Value *Ptr, unsigned Idx,
1245 const Twine &Name = "") {
1246 return CreateConstInBoundsGEP2_32(Ty, Ptr, 0, Idx, Name);
1249 /// \brief Same as CreateGlobalString, but return a pointer with "i8*" type
1250 /// instead of a pointer to array of i8.
1251 Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "",
1252 unsigned AddressSpace = 0) {
1253 GlobalVariable *gv = CreateGlobalString(Str, Name, AddressSpace);
1254 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
1255 Value *Args[] = { zero, zero };
1256 return CreateInBoundsGEP(gv->getValueType(), gv, Args, Name);
1259 //===--------------------------------------------------------------------===//
1260 // Instruction creation methods: Cast/Conversion Operators
1261 //===--------------------------------------------------------------------===//
1263 Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
1264 return CreateCast(Instruction::Trunc, V, DestTy, Name);
1266 Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
1267 return CreateCast(Instruction::ZExt, V, DestTy, Name);
1269 Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
1270 return CreateCast(Instruction::SExt, V, DestTy, Name);
1272 /// \brief Create a ZExt or Trunc from the integer value V to DestTy. Return
1273 /// the value untouched if the type of V is already DestTy.
1274 Value *CreateZExtOrTrunc(Value *V, Type *DestTy,
1275 const Twine &Name = "") {
1276 assert(V->getType()->isIntOrIntVectorTy() &&
1277 DestTy->isIntOrIntVectorTy() &&
1278 "Can only zero extend/truncate integers!");
1279 Type *VTy = V->getType();
1280 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1281 return CreateZExt(V, DestTy, Name);
1282 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1283 return CreateTrunc(V, DestTy, Name);
1286 /// \brief Create a SExt or Trunc from the integer value V to DestTy. Return
1287 /// the value untouched if the type of V is already DestTy.
1288 Value *CreateSExtOrTrunc(Value *V, Type *DestTy,
1289 const Twine &Name = "") {
1290 assert(V->getType()->isIntOrIntVectorTy() &&
1291 DestTy->isIntOrIntVectorTy() &&
1292 "Can only sign extend/truncate integers!");
1293 Type *VTy = V->getType();
1294 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1295 return CreateSExt(V, DestTy, Name);
1296 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1297 return CreateTrunc(V, DestTy, Name);
1300 Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
1301 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
1303 Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
1304 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
1306 Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1307 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
1309 Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1310 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
1312 Value *CreateFPTrunc(Value *V, Type *DestTy,
1313 const Twine &Name = "") {
1314 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
1316 Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
1317 return CreateCast(Instruction::FPExt, V, DestTy, Name);
1319 Value *CreatePtrToInt(Value *V, Type *DestTy,
1320 const Twine &Name = "") {
1321 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
1323 Value *CreateIntToPtr(Value *V, Type *DestTy,
1324 const Twine &Name = "") {
1325 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
1327 Value *CreateBitCast(Value *V, Type *DestTy,
1328 const Twine &Name = "") {
1329 return CreateCast(Instruction::BitCast, V, DestTy, Name);
1331 Value *CreateAddrSpaceCast(Value *V, Type *DestTy,
1332 const Twine &Name = "") {
1333 return CreateCast(Instruction::AddrSpaceCast, V, DestTy, Name);
1335 Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
1336 const Twine &Name = "") {
1337 if (V->getType() == DestTy)
1339 if (Constant *VC = dyn_cast<Constant>(V))
1340 return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
1341 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
1343 Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
1344 const Twine &Name = "") {
1345 if (V->getType() == DestTy)
1347 if (Constant *VC = dyn_cast<Constant>(V))
1348 return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
1349 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
1351 Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
1352 const Twine &Name = "") {
1353 if (V->getType() == DestTy)
1355 if (Constant *VC = dyn_cast<Constant>(V))
1356 return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
1357 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
1359 Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
1360 const Twine &Name = "") {
1361 if (V->getType() == DestTy)
1363 if (Constant *VC = dyn_cast<Constant>(V))
1364 return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
1365 return Insert(CastInst::Create(Op, V, DestTy), Name);
1367 Value *CreatePointerCast(Value *V, Type *DestTy,
1368 const Twine &Name = "") {
1369 if (V->getType() == DestTy)
1371 if (Constant *VC = dyn_cast<Constant>(V))
1372 return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
1373 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
1376 Value *CreatePointerBitCastOrAddrSpaceCast(Value *V, Type *DestTy,
1377 const Twine &Name = "") {
1378 if (V->getType() == DestTy)
1381 if (Constant *VC = dyn_cast<Constant>(V)) {
1382 return Insert(Folder.CreatePointerBitCastOrAddrSpaceCast(VC, DestTy),
1386 return Insert(CastInst::CreatePointerBitCastOrAddrSpaceCast(V, DestTy),
1390 Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
1391 const Twine &Name = "") {
1392 if (V->getType() == DestTy)
1394 if (Constant *VC = dyn_cast<Constant>(V))
1395 return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
1396 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
1399 Value *CreateBitOrPointerCast(Value *V, Type *DestTy,
1400 const Twine &Name = "") {
1401 if (V->getType() == DestTy)
1403 if (V->getType()->getScalarType()->isPointerTy() &&
1404 DestTy->getScalarType()->isIntegerTy())
1405 return CreatePtrToInt(V, DestTy, Name);
1406 if (V->getType()->getScalarType()->isIntegerTy() &&
1407 DestTy->getScalarType()->isPointerTy())
1408 return CreateIntToPtr(V, DestTy, Name);
1410 return CreateBitCast(V, DestTy, Name);
1414 // \brief Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a
1415 // compile time error, instead of converting the string to bool for the
1416 // isSigned parameter.
1417 Value *CreateIntCast(Value *, Type *, const char *) = delete;
1420 Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
1421 if (V->getType() == DestTy)
1423 if (Constant *VC = dyn_cast<Constant>(V))
1424 return Insert(Folder.CreateFPCast(VC, DestTy), Name);
1425 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
1428 //===--------------------------------------------------------------------===//
1429 // Instruction creation methods: Compare Instructions
1430 //===--------------------------------------------------------------------===//
1432 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1433 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
1435 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1436 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
1438 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1439 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
1441 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1442 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
1444 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1445 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
1447 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1448 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
1450 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1451 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
1453 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1454 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
1456 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1457 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
1459 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1460 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
1463 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1464 MDNode *FPMathTag = nullptr) {
1465 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name, FPMathTag);
1467 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "",
1468 MDNode *FPMathTag = nullptr) {
1469 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name, FPMathTag);
1471 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "",
1472 MDNode *FPMathTag = nullptr) {
1473 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name, FPMathTag);
1475 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "",
1476 MDNode *FPMathTag = nullptr) {
1477 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name, FPMathTag);
1479 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "",
1480 MDNode *FPMathTag = nullptr) {
1481 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name, FPMathTag);
1483 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "",
1484 MDNode *FPMathTag = nullptr) {
1485 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name, FPMathTag);
1487 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "",
1488 MDNode *FPMathTag = nullptr) {
1489 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name, FPMathTag);
1491 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "",
1492 MDNode *FPMathTag = nullptr) {
1493 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name, FPMathTag);
1495 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1496 MDNode *FPMathTag = nullptr) {
1497 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name, FPMathTag);
1499 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "",
1500 MDNode *FPMathTag = nullptr) {
1501 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name, FPMathTag);
1503 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "",
1504 MDNode *FPMathTag = nullptr) {
1505 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name, FPMathTag);
1507 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "",
1508 MDNode *FPMathTag = nullptr) {
1509 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name, FPMathTag);
1511 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "",
1512 MDNode *FPMathTag = nullptr) {
1513 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name, FPMathTag);
1515 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "",
1516 MDNode *FPMathTag = nullptr) {
1517 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name, FPMathTag);
1520 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1521 const Twine &Name = "") {
1522 if (Constant *LC = dyn_cast<Constant>(LHS))
1523 if (Constant *RC = dyn_cast<Constant>(RHS))
1524 return Insert(Folder.CreateICmp(P, LC, RC), Name);
1525 return Insert(new ICmpInst(P, LHS, RHS), Name);
1527 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1528 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1529 if (Constant *LC = dyn_cast<Constant>(LHS))
1530 if (Constant *RC = dyn_cast<Constant>(RHS))
1531 return Insert(Folder.CreateFCmp(P, LC, RC), Name);
1532 return Insert(AddFPMathAttributes(new FCmpInst(P, LHS, RHS),
1533 FPMathTag, FMF), Name);
1536 //===--------------------------------------------------------------------===//
1537 // Instruction creation methods: Other Instructions
1538 //===--------------------------------------------------------------------===//
1540 PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
1541 const Twine &Name = "") {
1542 return Insert(PHINode::Create(Ty, NumReservedValues), Name);
1545 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args = None,
1546 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1547 PointerType *PTy = cast<PointerType>(Callee->getType());
1548 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1549 return CreateCall(FTy, Callee, Args, Name, FPMathTag);
1552 CallInst *CreateCall(llvm::FunctionType *FTy, Value *Callee,
1553 ArrayRef<Value *> Args, const Twine &Name = "",
1554 MDNode *FPMathTag = nullptr) {
1555 CallInst *CI = CallInst::Create(FTy, Callee, Args, DefaultOperandBundles);
1556 if (isa<FPMathOperator>(CI))
1557 CI = cast<CallInst>(AddFPMathAttributes(CI, FPMathTag, FMF));
1558 return Insert(CI, Name);
1561 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
1562 ArrayRef<OperandBundleDef> OpBundles,
1563 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1564 CallInst *CI = CallInst::Create(Callee, Args, OpBundles);
1565 if (isa<FPMathOperator>(CI))
1566 CI = cast<CallInst>(AddFPMathAttributes(CI, FPMathTag, FMF));
1567 return Insert(CI, Name);
1570 CallInst *CreateCall(Function *Callee, ArrayRef<Value *> Args,
1571 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1572 return CreateCall(Callee->getFunctionType(), Callee, Args, Name, FPMathTag);
1575 Value *CreateSelect(Value *C, Value *True, Value *False,
1576 const Twine &Name = "", Instruction *MDFrom = nullptr) {
1577 if (Constant *CC = dyn_cast<Constant>(C))
1578 if (Constant *TC = dyn_cast<Constant>(True))
1579 if (Constant *FC = dyn_cast<Constant>(False))
1580 return Insert(Folder.CreateSelect(CC, TC, FC), Name);
1582 SelectInst *Sel = SelectInst::Create(C, True, False);
1584 MDNode *Prof = MDFrom->getMetadata(LLVMContext::MD_prof);
1585 MDNode *Unpred = MDFrom->getMetadata(LLVMContext::MD_unpredictable);
1586 Sel = addBranchMetadata(Sel, Prof, Unpred);
1588 return Insert(Sel, Name);
1591 VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
1592 return Insert(new VAArgInst(List, Ty), Name);
1595 Value *CreateExtractElement(Value *Vec, Value *Idx,
1596 const Twine &Name = "") {
1597 if (Constant *VC = dyn_cast<Constant>(Vec))
1598 if (Constant *IC = dyn_cast<Constant>(Idx))
1599 return Insert(Folder.CreateExtractElement(VC, IC), Name);
1600 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1603 Value *CreateExtractElement(Value *Vec, uint64_t Idx,
1604 const Twine &Name = "") {
1605 return CreateExtractElement(Vec, getInt64(Idx), Name);
1608 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1609 const Twine &Name = "") {
1610 if (Constant *VC = dyn_cast<Constant>(Vec))
1611 if (Constant *NC = dyn_cast<Constant>(NewElt))
1612 if (Constant *IC = dyn_cast<Constant>(Idx))
1613 return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
1614 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1617 Value *CreateInsertElement(Value *Vec, Value *NewElt, uint64_t Idx,
1618 const Twine &Name = "") {
1619 return CreateInsertElement(Vec, NewElt, getInt64(Idx), Name);
1622 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1623 const Twine &Name = "") {
1624 if (Constant *V1C = dyn_cast<Constant>(V1))
1625 if (Constant *V2C = dyn_cast<Constant>(V2))
1626 if (Constant *MC = dyn_cast<Constant>(Mask))
1627 return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
1628 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1631 Value *CreateShuffleVector(Value *V1, Value *V2, ArrayRef<uint32_t> IntMask,
1632 const Twine &Name = "") {
1633 Value *Mask = ConstantDataVector::get(Context, IntMask);
1634 return CreateShuffleVector(V1, V2, Mask, Name);
1637 Value *CreateExtractValue(Value *Agg,
1638 ArrayRef<unsigned> Idxs,
1639 const Twine &Name = "") {
1640 if (Constant *AggC = dyn_cast<Constant>(Agg))
1641 return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
1642 return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
1645 Value *CreateInsertValue(Value *Agg, Value *Val,
1646 ArrayRef<unsigned> Idxs,
1647 const Twine &Name = "") {
1648 if (Constant *AggC = dyn_cast<Constant>(Agg))
1649 if (Constant *ValC = dyn_cast<Constant>(Val))
1650 return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
1651 return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
1654 LandingPadInst *CreateLandingPad(Type *Ty, unsigned NumClauses,
1655 const Twine &Name = "") {
1656 return Insert(LandingPadInst::Create(Ty, NumClauses), Name);
1659 //===--------------------------------------------------------------------===//
1660 // Utility creation methods
1661 //===--------------------------------------------------------------------===//
1663 /// \brief Return an i1 value testing if \p Arg is null.
1664 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1665 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1669 /// \brief Return an i1 value testing if \p Arg is not null.
1670 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1671 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1675 /// \brief Return the i64 difference between two pointer values, dividing out
1676 /// the size of the pointed-to objects.
1678 /// This is intended to implement C-style pointer subtraction. As such, the
1679 /// pointers must be appropriately aligned for their element types and
1680 /// pointing into the same object.
1681 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1682 assert(LHS->getType() == RHS->getType() &&
1683 "Pointer subtraction operand types must match!");
1684 PointerType *ArgType = cast<PointerType>(LHS->getType());
1685 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1686 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1687 Value *Difference = CreateSub(LHS_int, RHS_int);
1688 return CreateExactSDiv(Difference,
1689 ConstantExpr::getSizeOf(ArgType->getElementType()),
1693 /// \brief Create an invariant.group.barrier intrinsic call, that stops
1694 /// optimizer to propagate equality using invariant.group metadata.
1695 /// If Ptr type is different from i8*, it's casted to i8* before call
1696 /// and casted back to Ptr type after call.
1697 Value *CreateInvariantGroupBarrier(Value *Ptr) {
1698 Module *M = BB->getParent()->getParent();
1699 Function *FnInvariantGroupBarrier = Intrinsic::getDeclaration(M,
1700 Intrinsic::invariant_group_barrier);
1702 Type *ArgumentAndReturnType = FnInvariantGroupBarrier->getReturnType();
1703 assert(ArgumentAndReturnType ==
1704 FnInvariantGroupBarrier->getFunctionType()->getParamType(0) &&
1705 "InvariantGroupBarrier should take and return the same type");
1706 Type *PtrType = Ptr->getType();
1708 bool PtrTypeConversionNeeded = PtrType != ArgumentAndReturnType;
1709 if (PtrTypeConversionNeeded)
1710 Ptr = CreateBitCast(Ptr, ArgumentAndReturnType);
1712 CallInst *Fn = CreateCall(FnInvariantGroupBarrier, {Ptr});
1714 if (PtrTypeConversionNeeded)
1715 return CreateBitCast(Fn, PtrType);
1719 /// \brief Return a vector value that contains \arg V broadcasted to \p
1720 /// NumElts elements.
1721 Value *CreateVectorSplat(unsigned NumElts, Value *V, const Twine &Name = "") {
1722 assert(NumElts > 0 && "Cannot splat to an empty vector!");
1724 // First insert it into an undef vector so we can shuffle it.
1725 Type *I32Ty = getInt32Ty();
1726 Value *Undef = UndefValue::get(VectorType::get(V->getType(), NumElts));
1727 V = CreateInsertElement(Undef, V, ConstantInt::get(I32Ty, 0),
1728 Name + ".splatinsert");
1730 // Shuffle the value across the desired number of elements.
1731 Value *Zeros = ConstantAggregateZero::get(VectorType::get(I32Ty, NumElts));
1732 return CreateShuffleVector(V, Undef, Zeros, Name + ".splat");
1735 /// \brief Return a value that has been extracted from a larger integer type.
1736 Value *CreateExtractInteger(const DataLayout &DL, Value *From,
1737 IntegerType *ExtractedTy, uint64_t Offset,
1738 const Twine &Name) {
1739 IntegerType *IntTy = cast<IntegerType>(From->getType());
1740 assert(DL.getTypeStoreSize(ExtractedTy) + Offset <=
1741 DL.getTypeStoreSize(IntTy) &&
1742 "Element extends past full value");
1743 uint64_t ShAmt = 8 * Offset;
1745 if (DL.isBigEndian())
1746 ShAmt = 8 * (DL.getTypeStoreSize(IntTy) -
1747 DL.getTypeStoreSize(ExtractedTy) - Offset);
1749 V = CreateLShr(V, ShAmt, Name + ".shift");
1751 assert(ExtractedTy->getBitWidth() <= IntTy->getBitWidth() &&
1752 "Cannot extract to a larger integer!");
1753 if (ExtractedTy != IntTy) {
1754 V = CreateTrunc(V, ExtractedTy, Name + ".trunc");
1759 /// \brief Create an assume intrinsic call that represents an alignment
1760 /// assumption on the provided pointer.
1762 /// An optional offset can be provided, and if it is provided, the offset
1763 /// must be subtracted from the provided pointer to get the pointer with the
1764 /// specified alignment.
1765 CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
1767 Value *OffsetValue = nullptr) {
1768 assert(isa<PointerType>(PtrValue->getType()) &&
1769 "trying to create an alignment assumption on a non-pointer?");
1771 PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
1772 Type *IntPtrTy = getIntPtrTy(DL, PtrTy->getAddressSpace());
1773 Value *PtrIntValue = CreatePtrToInt(PtrValue, IntPtrTy, "ptrint");
1775 Value *Mask = ConstantInt::get(IntPtrTy,
1776 Alignment > 0 ? Alignment - 1 : 0);
1778 bool IsOffsetZero = false;
1779 if (ConstantInt *CI = dyn_cast<ConstantInt>(OffsetValue))
1780 IsOffsetZero = CI->isZero();
1782 if (!IsOffsetZero) {
1783 if (OffsetValue->getType() != IntPtrTy)
1784 OffsetValue = CreateIntCast(OffsetValue, IntPtrTy, /*isSigned*/ true,
1786 PtrIntValue = CreateSub(PtrIntValue, OffsetValue, "offsetptr");
1790 Value *Zero = ConstantInt::get(IntPtrTy, 0);
1791 Value *MaskedPtr = CreateAnd(PtrIntValue, Mask, "maskedptr");
1792 Value *InvCond = CreateICmpEQ(MaskedPtr, Zero, "maskcond");
1794 return CreateAssumption(InvCond);
1798 // Create wrappers for C Binding types (see CBindingWrapping.h).
1799 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(IRBuilder<>, LLVMBuilderRef)
1801 } // end namespace llvm
1803 #endif // LLVM_IR_IRBUILDER_H