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/Function.h"
25 #include "llvm/IR/GlobalVariable.h"
26 #include "llvm/IR/Instructions.h"
27 #include "llvm/IR/Intrinsics.h"
28 #include "llvm/IR/Statepoint.h"
29 #include "llvm/IR/LLVMContext.h"
30 #include "llvm/IR/Operator.h"
31 #include "llvm/IR/ValueHandle.h"
32 #include "llvm/Support/CBindingWrapping.h"
37 /// \brief This provides the default implementation of the IRBuilder
38 /// 'InsertHelper' method that is called whenever an instruction is created by
39 /// IRBuilder and needs to be inserted.
41 /// By default, this inserts the instruction at the insertion point.
42 template <bool preserveNames = true>
43 class IRBuilderDefaultInserter {
45 void InsertHelper(Instruction *I, const Twine &Name,
46 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
47 if (BB) BB->getInstList().insert(InsertPt, I);
53 /// \brief Common base class shared among various IRBuilders.
55 DebugLoc CurDbgLocation;
59 BasicBlock::iterator InsertPt;
62 MDNode *DefaultFPMathTag;
66 IRBuilderBase(LLVMContext &context, MDNode *FPMathTag = nullptr)
67 : Context(context), DefaultFPMathTag(FPMathTag), FMF() {
68 ClearInsertionPoint();
71 //===--------------------------------------------------------------------===//
72 // Builder configuration methods
73 //===--------------------------------------------------------------------===//
75 /// \brief Clear the insertion point: created instructions will not be
76 /// inserted into a block.
77 void ClearInsertionPoint() {
82 BasicBlock *GetInsertBlock() const { return BB; }
83 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
84 LLVMContext &getContext() const { return Context; }
86 /// \brief This specifies that created instructions should be appended to the
87 /// end of the specified block.
88 void SetInsertPoint(BasicBlock *TheBB) {
93 /// \brief This specifies that created instructions should be inserted before
94 /// the specified instruction.
95 void SetInsertPoint(Instruction *I) {
98 assert(I != BB->end() && "Can't read debug loc from end()");
99 SetCurrentDebugLocation(I->getDebugLoc());
102 /// \brief This specifies that created instructions should be inserted at the
104 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
107 if (IP != TheBB->end())
108 SetCurrentDebugLocation(IP->getDebugLoc());
111 /// \brief Set location information used by debugging information.
112 void SetCurrentDebugLocation(DebugLoc L) { CurDbgLocation = std::move(L); }
114 /// \brief Get location information used by debugging information.
115 const DebugLoc &getCurrentDebugLocation() const { return CurDbgLocation; }
117 /// \brief If this builder has a current debug location, set it on the
118 /// specified instruction.
119 void SetInstDebugLocation(Instruction *I) const {
121 I->setDebugLoc(CurDbgLocation);
124 /// \brief Get the return type of the current function that we're emitting
126 Type *getCurrentFunctionReturnType() const;
128 /// InsertPoint - A saved insertion point.
131 BasicBlock::iterator Point;
134 /// \brief Creates a new insertion point which doesn't point to anything.
135 InsertPoint() : Block(nullptr) {}
137 /// \brief Creates a new insertion point at the given location.
138 InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
139 : Block(InsertBlock), Point(InsertPoint) {}
141 /// \brief Returns true if this insert point is set.
142 bool isSet() const { return (Block != nullptr); }
144 llvm::BasicBlock *getBlock() const { return Block; }
145 llvm::BasicBlock::iterator getPoint() const { return Point; }
148 /// \brief Returns the current insert point.
149 InsertPoint saveIP() const {
150 return InsertPoint(GetInsertBlock(), GetInsertPoint());
153 /// \brief Returns the current insert point, clearing it in the process.
154 InsertPoint saveAndClearIP() {
155 InsertPoint IP(GetInsertBlock(), GetInsertPoint());
156 ClearInsertionPoint();
160 /// \brief Sets the current insert point to a previously-saved location.
161 void restoreIP(InsertPoint IP) {
163 SetInsertPoint(IP.getBlock(), IP.getPoint());
165 ClearInsertionPoint();
168 /// \brief Get the floating point math metadata being used.
169 MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
171 /// \brief Get the flags to be applied to created floating point ops
172 FastMathFlags getFastMathFlags() const { return FMF; }
174 /// \brief Clear the fast-math flags.
175 void clearFastMathFlags() { FMF.clear(); }
177 /// \brief Set the floating point math metadata to be used.
178 void SetDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
180 /// \brief Set the fast-math flags to be used with generated fp-math operators
181 void SetFastMathFlags(FastMathFlags NewFMF) { FMF = NewFMF; }
183 //===--------------------------------------------------------------------===//
185 //===--------------------------------------------------------------------===//
187 // \brief RAII object that stores the current insertion point and restores it
188 // when the object is destroyed. This includes the debug location.
189 class InsertPointGuard {
190 IRBuilderBase &Builder;
191 AssertingVH<BasicBlock> Block;
192 BasicBlock::iterator Point;
195 InsertPointGuard(const InsertPointGuard &) = delete;
196 InsertPointGuard &operator=(const InsertPointGuard &) = delete;
199 InsertPointGuard(IRBuilderBase &B)
200 : Builder(B), Block(B.GetInsertBlock()), Point(B.GetInsertPoint()),
201 DbgLoc(B.getCurrentDebugLocation()) {}
203 ~InsertPointGuard() {
204 Builder.restoreIP(InsertPoint(Block, Point));
205 Builder.SetCurrentDebugLocation(DbgLoc);
209 // \brief RAII object that stores the current fast math settings and restores
210 // them when the object is destroyed.
211 class FastMathFlagGuard {
212 IRBuilderBase &Builder;
216 FastMathFlagGuard(const FastMathFlagGuard &) = delete;
217 FastMathFlagGuard &operator=(
218 const FastMathFlagGuard &) = delete;
221 FastMathFlagGuard(IRBuilderBase &B)
222 : Builder(B), FMF(B.FMF), FPMathTag(B.DefaultFPMathTag) {}
224 ~FastMathFlagGuard() {
226 Builder.DefaultFPMathTag = FPMathTag;
230 //===--------------------------------------------------------------------===//
231 // Miscellaneous creation methods.
232 //===--------------------------------------------------------------------===//
234 /// \brief Make a new global variable with initializer type i8*
236 /// Make a new global variable with an initializer that has array of i8 type
237 /// filled in with the null terminated string value specified. The new global
238 /// variable will be marked mergable with any others of the same contents. If
239 /// Name is specified, it is the name of the global variable created.
240 GlobalVariable *CreateGlobalString(StringRef Str, const Twine &Name = "",
241 unsigned AddressSpace = 0);
243 /// \brief Get a constant value representing either true or false.
244 ConstantInt *getInt1(bool V) {
245 return ConstantInt::get(getInt1Ty(), V);
248 /// \brief Get the constant value for i1 true.
249 ConstantInt *getTrue() {
250 return ConstantInt::getTrue(Context);
253 /// \brief Get the constant value for i1 false.
254 ConstantInt *getFalse() {
255 return ConstantInt::getFalse(Context);
258 /// \brief Get a constant 8-bit value.
259 ConstantInt *getInt8(uint8_t C) {
260 return ConstantInt::get(getInt8Ty(), C);
263 /// \brief Get a constant 16-bit value.
264 ConstantInt *getInt16(uint16_t C) {
265 return ConstantInt::get(getInt16Ty(), C);
268 /// \brief Get a constant 32-bit value.
269 ConstantInt *getInt32(uint32_t C) {
270 return ConstantInt::get(getInt32Ty(), C);
273 /// \brief Get a constant 64-bit value.
274 ConstantInt *getInt64(uint64_t C) {
275 return ConstantInt::get(getInt64Ty(), C);
278 /// \brief Get a constant N-bit value, zero extended or truncated from
280 ConstantInt *getIntN(unsigned N, uint64_t C) {
281 return ConstantInt::get(getIntNTy(N), C);
284 /// \brief Get a constant integer value.
285 ConstantInt *getInt(const APInt &AI) {
286 return ConstantInt::get(Context, AI);
289 //===--------------------------------------------------------------------===//
290 // Type creation methods
291 //===--------------------------------------------------------------------===//
293 /// \brief Fetch the type representing a single bit
294 IntegerType *getInt1Ty() {
295 return Type::getInt1Ty(Context);
298 /// \brief Fetch the type representing an 8-bit integer.
299 IntegerType *getInt8Ty() {
300 return Type::getInt8Ty(Context);
303 /// \brief Fetch the type representing a 16-bit integer.
304 IntegerType *getInt16Ty() {
305 return Type::getInt16Ty(Context);
308 /// \brief Fetch the type representing a 32-bit integer.
309 IntegerType *getInt32Ty() {
310 return Type::getInt32Ty(Context);
313 /// \brief Fetch the type representing a 64-bit integer.
314 IntegerType *getInt64Ty() {
315 return Type::getInt64Ty(Context);
318 /// \brief Fetch the type representing a 128-bit integer.
319 IntegerType *getInt128Ty() { return Type::getInt128Ty(Context); }
321 /// \brief Fetch the type representing an N-bit integer.
322 IntegerType *getIntNTy(unsigned N) {
323 return Type::getIntNTy(Context, N);
326 /// \brief Fetch the type representing a 16-bit floating point value.
328 return Type::getHalfTy(Context);
331 /// \brief Fetch the type representing a 32-bit floating point value.
333 return Type::getFloatTy(Context);
336 /// \brief Fetch the type representing a 64-bit floating point value.
337 Type *getDoubleTy() {
338 return Type::getDoubleTy(Context);
341 /// \brief Fetch the type representing void.
343 return Type::getVoidTy(Context);
346 /// \brief Fetch the type representing a pointer to an 8-bit integer value.
347 PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
348 return Type::getInt8PtrTy(Context, AddrSpace);
351 /// \brief Fetch the type representing a pointer to an integer value.
352 IntegerType *getIntPtrTy(const DataLayout &DL, unsigned AddrSpace = 0) {
353 return DL.getIntPtrType(Context, AddrSpace);
356 //===--------------------------------------------------------------------===//
357 // Intrinsic creation methods
358 //===--------------------------------------------------------------------===//
360 /// \brief Create and insert a memset to the specified pointer and the
363 /// If the pointer isn't an i8*, it will be converted. If a TBAA tag is
364 /// specified, it will be added to the instruction. Likewise with alias.scope
365 /// and noalias tags.
366 CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
367 bool isVolatile = false, MDNode *TBAATag = nullptr,
368 MDNode *ScopeTag = nullptr,
369 MDNode *NoAliasTag = nullptr) {
370 return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile,
371 TBAATag, ScopeTag, NoAliasTag);
374 CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
375 bool isVolatile = false, MDNode *TBAATag = nullptr,
376 MDNode *ScopeTag = nullptr,
377 MDNode *NoAliasTag = nullptr);
379 /// \brief Create and insert a memcpy between the specified pointers.
381 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
382 /// specified, it will be added to the instruction. Likewise with alias.scope
383 /// and noalias tags.
384 CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
385 bool isVolatile = false, MDNode *TBAATag = nullptr,
386 MDNode *TBAAStructTag = nullptr,
387 MDNode *ScopeTag = nullptr,
388 MDNode *NoAliasTag = nullptr) {
389 return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
390 TBAAStructTag, ScopeTag, NoAliasTag);
393 CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
394 bool isVolatile = false, MDNode *TBAATag = nullptr,
395 MDNode *TBAAStructTag = nullptr,
396 MDNode *ScopeTag = nullptr,
397 MDNode *NoAliasTag = nullptr);
399 /// \brief Create and insert a memmove between the specified
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 *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
406 bool isVolatile = false, MDNode *TBAATag = nullptr,
407 MDNode *ScopeTag = nullptr,
408 MDNode *NoAliasTag = nullptr) {
409 return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile,
410 TBAATag, ScopeTag, NoAliasTag);
413 CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
414 bool isVolatile = false, MDNode *TBAATag = nullptr,
415 MDNode *ScopeTag = nullptr,
416 MDNode *NoAliasTag = nullptr);
418 /// \brief Create a lifetime.start intrinsic.
420 /// If the pointer isn't i8* it will be converted.
421 CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = nullptr);
423 /// \brief Create a lifetime.end intrinsic.
425 /// If the pointer isn't i8* it will be converted.
426 CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
428 /// \brief Create a call to Masked Load intrinsic
429 CallInst *CreateMaskedLoad(Value *Ptr, unsigned Align, Value *Mask,
430 Value *PassThru = nullptr, const Twine &Name = "");
432 /// \brief Create a call to Masked Store intrinsic
433 CallInst *CreateMaskedStore(Value *Val, Value *Ptr, unsigned Align,
436 /// \brief Create an assume intrinsic call that allows the optimizer to
437 /// assume that the provided condition will be true.
438 CallInst *CreateAssumption(Value *Cond);
440 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
441 /// start a new statepoint sequence.
442 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
444 ArrayRef<Value *> CallArgs,
445 ArrayRef<Value *> DeoptArgs,
446 ArrayRef<Value *> GCArgs,
447 const Twine &Name = "");
449 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
450 /// start a new statepoint sequence.
451 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
452 Value *ActualCallee, StatepointFlags Flags,
453 ArrayRef<Use> CallArgs,
454 ArrayRef<Use> TransitionArgs,
455 ArrayRef<Use> DeoptArgs,
456 ArrayRef<Value *> GCArgs,
457 const Twine &Name = "");
459 // \brief Conveninence function for the common case when CallArgs are filled
460 // in using makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be
461 // .get()'ed to get the Value pointer.
462 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
463 Value *ActualCallee, ArrayRef<Use> CallArgs,
464 ArrayRef<Value *> DeoptArgs,
465 ArrayRef<Value *> GCArgs,
466 const Twine &Name = "");
468 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
469 /// start a new statepoint sequence.
471 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
472 Value *ActualInvokee, BasicBlock *NormalDest,
473 BasicBlock *UnwindDest, ArrayRef<Value *> InvokeArgs,
474 ArrayRef<Value *> DeoptArgs,
475 ArrayRef<Value *> GCArgs, const Twine &Name = "");
477 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
478 /// start a new statepoint sequence.
479 InvokeInst *CreateGCStatepointInvoke(
480 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
481 BasicBlock *NormalDest, BasicBlock *UnwindDest, StatepointFlags Flags,
482 ArrayRef<Use> InvokeArgs, ArrayRef<Use> TransitionArgs,
483 ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs,
484 const Twine &Name = "");
486 // Conveninence function for the common case when CallArgs are filled in using
487 // makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be .get()'ed to
490 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
491 Value *ActualInvokee, BasicBlock *NormalDest,
492 BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
493 ArrayRef<Value *> DeoptArgs,
494 ArrayRef<Value *> GCArgs, const Twine &Name = "");
496 /// \brief Create a call to the experimental.gc.result intrinsic to extract
497 /// the result from a call wrapped in a statepoint.
498 CallInst *CreateGCResult(Instruction *Statepoint,
500 const Twine &Name = "");
502 /// \brief Create a call to the experimental.gc.relocate intrinsics to
503 /// project the relocated value of one pointer from the statepoint.
504 CallInst *CreateGCRelocate(Instruction *Statepoint,
508 const Twine &Name = "");
511 /// \brief Create a call to a masked intrinsic with given Id.
512 /// Masked intrinsic has only one overloaded type - data type.
513 CallInst *CreateMaskedIntrinsic(Intrinsic::ID Id, ArrayRef<Value *> Ops,
514 Type *DataTy, const Twine &Name = "");
516 Value *getCastedInt8PtrValue(Value *Ptr);
519 /// \brief This provides a uniform API for creating instructions and inserting
520 /// them into a basic block: either at the end of a BasicBlock, or at a specific
521 /// iterator location in a block.
523 /// Note that the builder does not expose the full generality of LLVM
524 /// instructions. For access to extra instruction properties, use the mutators
525 /// (e.g. setVolatile) on the instructions after they have been
526 /// created. Convenience state exists to specify fast-math flags and fp-math
529 /// The first template argument handles whether or not to preserve names in the
530 /// final instruction output. This defaults to on. The second template argument
531 /// specifies a class to use for creating constants. This defaults to creating
532 /// minimally folded constants. The third template argument allows clients to
533 /// specify custom insertion hooks that are called on every newly created
535 template<bool preserveNames = true, typename T = ConstantFolder,
536 typename Inserter = IRBuilderDefaultInserter<preserveNames> >
537 class IRBuilder : public IRBuilderBase, public Inserter {
541 IRBuilder(LLVMContext &C, const T &F, Inserter I = Inserter(),
542 MDNode *FPMathTag = nullptr)
543 : IRBuilderBase(C, FPMathTag), Inserter(std::move(I)), Folder(F) {}
545 explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = nullptr)
546 : IRBuilderBase(C, FPMathTag), Folder() {
549 explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = nullptr)
550 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
551 SetInsertPoint(TheBB);
554 explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = nullptr)
555 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
556 SetInsertPoint(TheBB);
559 explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = nullptr)
560 : IRBuilderBase(IP->getContext(), FPMathTag), Folder() {
564 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F,
565 MDNode *FPMathTag = nullptr)
566 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
567 SetInsertPoint(TheBB, IP);
570 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP,
571 MDNode *FPMathTag = nullptr)
572 : IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
573 SetInsertPoint(TheBB, IP);
576 /// \brief Get the constant folder being used.
577 const T &getFolder() { return Folder; }
579 /// \brief Return true if this builder is configured to actually add the
580 /// requested names to IR created through it.
581 bool isNamePreserving() const { return preserveNames; }
583 /// \brief Insert and return the specified instruction.
584 template<typename InstTy>
585 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
586 this->InsertHelper(I, Name, BB, InsertPt);
587 this->SetInstDebugLocation(I);
591 /// \brief No-op overload to handle constants.
592 Constant *Insert(Constant *C, const Twine& = "") const {
596 //===--------------------------------------------------------------------===//
597 // Instruction creation methods: Terminators
598 //===--------------------------------------------------------------------===//
601 /// \brief Helper to add branch weight and unpredictable metadata onto an
603 /// \returns The annotated instruction.
604 template <typename InstTy>
605 InstTy *addBranchMetadata(InstTy *I, MDNode *Weights, MDNode *Unpredictable) {
607 I->setMetadata(LLVMContext::MD_prof, Weights);
609 I->setMetadata(LLVMContext::MD_unpredictable, Unpredictable);
614 /// \brief Create a 'ret void' instruction.
615 ReturnInst *CreateRetVoid() {
616 return Insert(ReturnInst::Create(Context));
619 /// \brief Create a 'ret <val>' instruction.
620 ReturnInst *CreateRet(Value *V) {
621 return Insert(ReturnInst::Create(Context, V));
624 /// \brief Create a sequence of N insertvalue instructions,
625 /// with one Value from the retVals array each, that build a aggregate
626 /// return value one value at a time, and a ret instruction to return
627 /// the resulting aggregate value.
629 /// This is a convenience function for code that uses aggregate return values
630 /// as a vehicle for having multiple return values.
631 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
632 Value *V = UndefValue::get(getCurrentFunctionReturnType());
633 for (unsigned i = 0; i != N; ++i)
634 V = CreateInsertValue(V, retVals[i], i, "mrv");
635 return Insert(ReturnInst::Create(Context, V));
638 /// \brief Create an unconditional 'br label X' instruction.
639 BranchInst *CreateBr(BasicBlock *Dest) {
640 return Insert(BranchInst::Create(Dest));
643 /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
645 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
646 MDNode *BranchWeights = nullptr,
647 MDNode *Unpredictable = nullptr) {
648 return Insert(addBranchMetadata(BranchInst::Create(True, False, Cond),
649 BranchWeights, Unpredictable));
652 /// \brief Create a switch instruction with the specified value, default dest,
653 /// and with a hint for the number of cases that will be added (for efficient
655 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10,
656 MDNode *BranchWeights = nullptr,
657 MDNode *Unpredictable = nullptr) {
658 return Insert(addBranchMetadata(SwitchInst::Create(V, Dest, NumCases),
659 BranchWeights, Unpredictable));
662 /// \brief Create an indirect branch instruction with the specified address
663 /// operand, with an optional hint for the number of destinations that will be
664 /// added (for efficient allocation).
665 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
666 return Insert(IndirectBrInst::Create(Addr, NumDests));
669 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
670 BasicBlock *UnwindDest, const Twine &Name = "") {
671 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, None),
674 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
675 BasicBlock *UnwindDest, Value *Arg1,
676 const Twine &Name = "") {
677 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Arg1),
680 InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
681 BasicBlock *UnwindDest, Value *Arg1,
682 Value *Arg2, Value *Arg3,
683 const Twine &Name = "") {
684 Value *Args[] = { Arg1, Arg2, Arg3 };
685 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
688 /// \brief Create an invoke instruction.
689 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
690 BasicBlock *UnwindDest, ArrayRef<Value *> Args,
691 const Twine &Name = "") {
692 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
696 ResumeInst *CreateResume(Value *Exn) {
697 return Insert(ResumeInst::Create(Exn));
700 CleanupReturnInst *CreateCleanupRet(CleanupPadInst *CleanupPad,
701 BasicBlock *UnwindBB = nullptr) {
702 return Insert(CleanupReturnInst::Create(CleanupPad, UnwindBB));
705 CleanupEndPadInst *CreateCleanupEndPad(CleanupPadInst *CleanupPad,
706 BasicBlock *UnwindBB = nullptr) {
707 return Insert(CleanupEndPadInst::Create(CleanupPad, UnwindBB));
710 CatchPadInst *CreateCatchPad(BasicBlock *NormalDest, BasicBlock *UnwindDest,
711 ArrayRef<Value *> Args, const Twine &Name = "") {
712 return Insert(CatchPadInst::Create(NormalDest, UnwindDest, Args), Name);
715 CatchEndPadInst *CreateCatchEndPad(BasicBlock *UnwindBB = nullptr) {
716 return Insert(CatchEndPadInst::Create(Context, UnwindBB));
719 TerminatePadInst *CreateTerminatePad(BasicBlock *UnwindBB = nullptr,
720 ArrayRef<Value *> Args = {},
721 const Twine &Name = "") {
722 return Insert(TerminatePadInst::Create(Context, UnwindBB, Args), Name);
725 CleanupPadInst *CreateCleanupPad(ArrayRef<Value *> Args,
726 const Twine &Name = "") {
727 return Insert(CleanupPadInst::Create(Context, Args), Name);
730 CatchReturnInst *CreateCatchRet(CatchPadInst *CatchPad, BasicBlock *BB) {
731 return Insert(CatchReturnInst::Create(CatchPad, BB));
734 UnreachableInst *CreateUnreachable() {
735 return Insert(new UnreachableInst(Context));
738 //===--------------------------------------------------------------------===//
739 // Instruction creation methods: Binary Operators
740 //===--------------------------------------------------------------------===//
742 BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
743 Value *LHS, Value *RHS,
745 bool HasNUW, bool HasNSW) {
746 BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
747 if (HasNUW) BO->setHasNoUnsignedWrap();
748 if (HasNSW) BO->setHasNoSignedWrap();
752 Instruction *AddFPMathAttributes(Instruction *I,
754 FastMathFlags FMF) const {
756 FPMathTag = DefaultFPMathTag;
758 I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
759 I->setFastMathFlags(FMF);
764 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
765 bool HasNUW = false, bool HasNSW = false) {
766 if (Constant *LC = dyn_cast<Constant>(LHS))
767 if (Constant *RC = dyn_cast<Constant>(RHS))
768 return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
769 return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
772 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
773 return CreateAdd(LHS, RHS, Name, false, true);
775 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
776 return CreateAdd(LHS, RHS, Name, true, false);
778 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
779 MDNode *FPMathTag = nullptr) {
780 if (Constant *LC = dyn_cast<Constant>(LHS))
781 if (Constant *RC = dyn_cast<Constant>(RHS))
782 return Insert(Folder.CreateFAdd(LC, RC), Name);
783 return Insert(AddFPMathAttributes(BinaryOperator::CreateFAdd(LHS, RHS),
784 FPMathTag, FMF), Name);
786 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
787 bool HasNUW = false, bool HasNSW = false) {
788 if (Constant *LC = dyn_cast<Constant>(LHS))
789 if (Constant *RC = dyn_cast<Constant>(RHS))
790 return Insert(Folder.CreateSub(LC, RC, HasNUW, HasNSW), Name);
791 return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
794 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
795 return CreateSub(LHS, RHS, Name, false, true);
797 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
798 return CreateSub(LHS, RHS, Name, true, false);
800 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
801 MDNode *FPMathTag = nullptr) {
802 if (Constant *LC = dyn_cast<Constant>(LHS))
803 if (Constant *RC = dyn_cast<Constant>(RHS))
804 return Insert(Folder.CreateFSub(LC, RC), Name);
805 return Insert(AddFPMathAttributes(BinaryOperator::CreateFSub(LHS, RHS),
806 FPMathTag, FMF), Name);
808 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
809 bool HasNUW = false, bool HasNSW = false) {
810 if (Constant *LC = dyn_cast<Constant>(LHS))
811 if (Constant *RC = dyn_cast<Constant>(RHS))
812 return Insert(Folder.CreateMul(LC, RC, HasNUW, HasNSW), Name);
813 return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
816 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
817 return CreateMul(LHS, RHS, Name, false, true);
819 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
820 return CreateMul(LHS, RHS, Name, true, false);
822 Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "",
823 MDNode *FPMathTag = nullptr) {
824 if (Constant *LC = dyn_cast<Constant>(LHS))
825 if (Constant *RC = dyn_cast<Constant>(RHS))
826 return Insert(Folder.CreateFMul(LC, RC), Name);
827 return Insert(AddFPMathAttributes(BinaryOperator::CreateFMul(LHS, RHS),
828 FPMathTag, FMF), Name);
830 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
831 bool isExact = false) {
832 if (Constant *LC = dyn_cast<Constant>(LHS))
833 if (Constant *RC = dyn_cast<Constant>(RHS))
834 return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
836 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
837 return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
839 Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
840 return CreateUDiv(LHS, RHS, Name, true);
842 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
843 bool isExact = false) {
844 if (Constant *LC = dyn_cast<Constant>(LHS))
845 if (Constant *RC = dyn_cast<Constant>(RHS))
846 return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
848 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
849 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
851 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
852 return CreateSDiv(LHS, RHS, Name, true);
854 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
855 MDNode *FPMathTag = nullptr) {
856 if (Constant *LC = dyn_cast<Constant>(LHS))
857 if (Constant *RC = dyn_cast<Constant>(RHS))
858 return Insert(Folder.CreateFDiv(LC, RC), Name);
859 return Insert(AddFPMathAttributes(BinaryOperator::CreateFDiv(LHS, RHS),
860 FPMathTag, FMF), Name);
862 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
863 if (Constant *LC = dyn_cast<Constant>(LHS))
864 if (Constant *RC = dyn_cast<Constant>(RHS))
865 return Insert(Folder.CreateURem(LC, RC), Name);
866 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
868 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
869 if (Constant *LC = dyn_cast<Constant>(LHS))
870 if (Constant *RC = dyn_cast<Constant>(RHS))
871 return Insert(Folder.CreateSRem(LC, RC), Name);
872 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
874 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
875 MDNode *FPMathTag = nullptr) {
876 if (Constant *LC = dyn_cast<Constant>(LHS))
877 if (Constant *RC = dyn_cast<Constant>(RHS))
878 return Insert(Folder.CreateFRem(LC, RC), Name);
879 return Insert(AddFPMathAttributes(BinaryOperator::CreateFRem(LHS, RHS),
880 FPMathTag, FMF), Name);
883 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
884 bool HasNUW = false, bool HasNSW = false) {
885 if (Constant *LC = dyn_cast<Constant>(LHS))
886 if (Constant *RC = dyn_cast<Constant>(RHS))
887 return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
888 return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
891 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
892 bool HasNUW = false, bool HasNSW = false) {
893 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
896 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
897 bool HasNUW = false, bool HasNSW = false) {
898 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
902 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
903 bool isExact = false) {
904 if (Constant *LC = dyn_cast<Constant>(LHS))
905 if (Constant *RC = dyn_cast<Constant>(RHS))
906 return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
908 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
909 return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
911 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
912 bool isExact = false) {
913 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
915 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
916 bool isExact = false) {
917 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
920 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
921 bool isExact = false) {
922 if (Constant *LC = dyn_cast<Constant>(LHS))
923 if (Constant *RC = dyn_cast<Constant>(RHS))
924 return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
926 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
927 return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
929 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
930 bool isExact = false) {
931 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
933 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
934 bool isExact = false) {
935 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
938 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
939 if (Constant *RC = dyn_cast<Constant>(RHS)) {
940 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
941 return LHS; // LHS & -1 -> LHS
942 if (Constant *LC = dyn_cast<Constant>(LHS))
943 return Insert(Folder.CreateAnd(LC, RC), Name);
945 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
947 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
948 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
950 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
951 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
954 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
955 if (Constant *RC = dyn_cast<Constant>(RHS)) {
956 if (RC->isNullValue())
957 return LHS; // LHS | 0 -> LHS
958 if (Constant *LC = dyn_cast<Constant>(LHS))
959 return Insert(Folder.CreateOr(LC, RC), Name);
961 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
963 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
964 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
966 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
967 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
970 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
971 if (Constant *LC = dyn_cast<Constant>(LHS))
972 if (Constant *RC = dyn_cast<Constant>(RHS))
973 return Insert(Folder.CreateXor(LC, RC), Name);
974 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
976 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
977 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
979 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
980 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
983 Value *CreateBinOp(Instruction::BinaryOps Opc,
984 Value *LHS, Value *RHS, const Twine &Name = "",
985 MDNode *FPMathTag = nullptr) {
986 if (Constant *LC = dyn_cast<Constant>(LHS))
987 if (Constant *RC = dyn_cast<Constant>(RHS))
988 return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
989 llvm::Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
990 if (isa<FPMathOperator>(BinOp))
991 BinOp = AddFPMathAttributes(BinOp, FPMathTag, FMF);
992 return Insert(BinOp, Name);
995 Value *CreateNeg(Value *V, const Twine &Name = "",
996 bool HasNUW = false, bool HasNSW = false) {
997 if (Constant *VC = dyn_cast<Constant>(V))
998 return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
999 BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
1000 if (HasNUW) BO->setHasNoUnsignedWrap();
1001 if (HasNSW) BO->setHasNoSignedWrap();
1004 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
1005 return CreateNeg(V, Name, false, true);
1007 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
1008 return CreateNeg(V, Name, true, false);
1010 Value *CreateFNeg(Value *V, const Twine &Name = "",
1011 MDNode *FPMathTag = nullptr) {
1012 if (Constant *VC = dyn_cast<Constant>(V))
1013 return Insert(Folder.CreateFNeg(VC), Name);
1014 return Insert(AddFPMathAttributes(BinaryOperator::CreateFNeg(V),
1015 FPMathTag, FMF), Name);
1017 Value *CreateNot(Value *V, const Twine &Name = "") {
1018 if (Constant *VC = dyn_cast<Constant>(V))
1019 return Insert(Folder.CreateNot(VC), Name);
1020 return Insert(BinaryOperator::CreateNot(V), Name);
1023 //===--------------------------------------------------------------------===//
1024 // Instruction creation methods: Memory Instructions
1025 //===--------------------------------------------------------------------===//
1027 AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = nullptr,
1028 const Twine &Name = "") {
1029 return Insert(new AllocaInst(Ty, ArraySize), Name);
1031 // \brief Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
1032 // converting the string to 'bool' for the isVolatile parameter.
1033 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
1034 return Insert(new LoadInst(Ptr), Name);
1036 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
1037 return Insert(new LoadInst(Ptr), Name);
1039 LoadInst *CreateLoad(Type *Ty, Value *Ptr, const Twine &Name = "") {
1040 return Insert(new LoadInst(Ty, Ptr), Name);
1042 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
1043 return Insert(new LoadInst(Ptr, nullptr, isVolatile), Name);
1045 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
1046 return Insert(new StoreInst(Val, Ptr, isVolatile));
1048 // \brief Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")'
1049 // correctly, instead of converting the string to 'bool' for the isVolatile
1051 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
1052 LoadInst *LI = CreateLoad(Ptr, Name);
1053 LI->setAlignment(Align);
1056 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
1057 const Twine &Name = "") {
1058 LoadInst *LI = CreateLoad(Ptr, Name);
1059 LI->setAlignment(Align);
1062 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
1063 const Twine &Name = "") {
1064 LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
1065 LI->setAlignment(Align);
1068 StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
1069 bool isVolatile = false) {
1070 StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
1071 SI->setAlignment(Align);
1074 FenceInst *CreateFence(AtomicOrdering Ordering,
1075 SynchronizationScope SynchScope = CrossThread,
1076 const Twine &Name = "") {
1077 return Insert(new FenceInst(Context, Ordering, SynchScope), Name);
1080 CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
1081 AtomicOrdering SuccessOrdering,
1082 AtomicOrdering FailureOrdering,
1083 SynchronizationScope SynchScope = CrossThread) {
1084 return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering,
1085 FailureOrdering, SynchScope));
1087 AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
1088 AtomicOrdering Ordering,
1089 SynchronizationScope SynchScope = CrossThread) {
1090 return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
1092 Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1093 const Twine &Name = "") {
1094 return CreateGEP(nullptr, Ptr, IdxList, Name);
1096 Value *CreateGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1097 const Twine &Name = "") {
1098 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1099 // Every index must be constant.
1101 for (i = 0, e = IdxList.size(); i != e; ++i)
1102 if (!isa<Constant>(IdxList[i]))
1105 return Insert(Folder.CreateGetElementPtr(Ty, PC, IdxList), Name);
1107 return Insert(GetElementPtrInst::Create(Ty, Ptr, IdxList), Name);
1109 Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1110 const Twine &Name = "") {
1111 return CreateInBoundsGEP(nullptr, Ptr, IdxList, Name);
1113 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1114 const Twine &Name = "") {
1115 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1116 // Every index must be constant.
1118 for (i = 0, e = IdxList.size(); i != e; ++i)
1119 if (!isa<Constant>(IdxList[i]))
1122 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IdxList),
1125 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, IdxList), Name);
1127 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
1128 return CreateGEP(nullptr, Ptr, Idx, Name);
1130 Value *CreateGEP(Type *Ty, Value *Ptr, Value *Idx, const Twine &Name = "") {
1131 if (Constant *PC = dyn_cast<Constant>(Ptr))
1132 if (Constant *IC = dyn_cast<Constant>(Idx))
1133 return Insert(Folder.CreateGetElementPtr(Ty, PC, IC), Name);
1134 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1136 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, Value *Idx,
1137 const Twine &Name = "") {
1138 if (Constant *PC = dyn_cast<Constant>(Ptr))
1139 if (Constant *IC = dyn_cast<Constant>(Idx))
1140 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IC), Name);
1141 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1143 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
1144 return CreateConstGEP1_32(nullptr, Ptr, Idx0, Name);
1146 Value *CreateConstGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1147 const Twine &Name = "") {
1148 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1150 if (Constant *PC = dyn_cast<Constant>(Ptr))
1151 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idx), Name);
1153 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1155 Value *CreateConstInBoundsGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1156 const Twine &Name = "") {
1157 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1159 if (Constant *PC = dyn_cast<Constant>(Ptr))
1160 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idx), Name);
1162 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1164 Value *CreateConstGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0, unsigned Idx1,
1165 const Twine &Name = "") {
1167 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1168 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1171 if (Constant *PC = dyn_cast<Constant>(Ptr))
1172 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idxs), Name);
1174 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idxs), Name);
1176 Value *CreateConstInBoundsGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0,
1177 unsigned Idx1, const Twine &Name = "") {
1179 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1180 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1183 if (Constant *PC = dyn_cast<Constant>(Ptr))
1184 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idxs), Name);
1186 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idxs), Name);
1188 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
1189 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1191 if (Constant *PC = dyn_cast<Constant>(Ptr))
1192 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idx), Name);
1194 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idx), Name);
1196 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
1197 const Twine &Name = "") {
1198 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1200 if (Constant *PC = dyn_cast<Constant>(Ptr))
1201 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idx), Name);
1203 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idx), Name);
1205 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1206 const Twine &Name = "") {
1208 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1209 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1212 if (Constant *PC = dyn_cast<Constant>(Ptr))
1213 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idxs), Name);
1215 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idxs), Name);
1217 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1218 const Twine &Name = "") {
1220 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1221 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1224 if (Constant *PC = dyn_cast<Constant>(Ptr))
1225 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idxs),
1228 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idxs), Name);
1230 Value *CreateStructGEP(Type *Ty, Value *Ptr, unsigned Idx,
1231 const Twine &Name = "") {
1232 return CreateConstInBoundsGEP2_32(Ty, Ptr, 0, Idx, Name);
1235 /// \brief Same as CreateGlobalString, but return a pointer with "i8*" type
1236 /// instead of a pointer to array of i8.
1237 Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "",
1238 unsigned AddressSpace = 0) {
1239 GlobalVariable *gv = CreateGlobalString(Str, Name, AddressSpace);
1240 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
1241 Value *Args[] = { zero, zero };
1242 return CreateInBoundsGEP(gv->getValueType(), gv, Args, Name);
1245 //===--------------------------------------------------------------------===//
1246 // Instruction creation methods: Cast/Conversion Operators
1247 //===--------------------------------------------------------------------===//
1249 Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
1250 return CreateCast(Instruction::Trunc, V, DestTy, Name);
1252 Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
1253 return CreateCast(Instruction::ZExt, V, DestTy, Name);
1255 Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
1256 return CreateCast(Instruction::SExt, V, DestTy, Name);
1258 /// \brief Create a ZExt or Trunc from the integer value V to DestTy. Return
1259 /// the value untouched if the type of V is already DestTy.
1260 Value *CreateZExtOrTrunc(Value *V, Type *DestTy,
1261 const Twine &Name = "") {
1262 assert(V->getType()->isIntOrIntVectorTy() &&
1263 DestTy->isIntOrIntVectorTy() &&
1264 "Can only zero extend/truncate integers!");
1265 Type *VTy = V->getType();
1266 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1267 return CreateZExt(V, DestTy, Name);
1268 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1269 return CreateTrunc(V, DestTy, Name);
1272 /// \brief Create a SExt or Trunc from the integer value V to DestTy. Return
1273 /// the value untouched if the type of V is already DestTy.
1274 Value *CreateSExtOrTrunc(Value *V, Type *DestTy,
1275 const Twine &Name = "") {
1276 assert(V->getType()->isIntOrIntVectorTy() &&
1277 DestTy->isIntOrIntVectorTy() &&
1278 "Can only sign extend/truncate integers!");
1279 Type *VTy = V->getType();
1280 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1281 return CreateSExt(V, DestTy, Name);
1282 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1283 return CreateTrunc(V, DestTy, Name);
1286 Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
1287 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
1289 Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
1290 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
1292 Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1293 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
1295 Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1296 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
1298 Value *CreateFPTrunc(Value *V, Type *DestTy,
1299 const Twine &Name = "") {
1300 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
1302 Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
1303 return CreateCast(Instruction::FPExt, V, DestTy, Name);
1305 Value *CreatePtrToInt(Value *V, Type *DestTy,
1306 const Twine &Name = "") {
1307 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
1309 Value *CreateIntToPtr(Value *V, Type *DestTy,
1310 const Twine &Name = "") {
1311 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
1313 Value *CreateBitCast(Value *V, Type *DestTy,
1314 const Twine &Name = "") {
1315 return CreateCast(Instruction::BitCast, V, DestTy, Name);
1317 Value *CreateAddrSpaceCast(Value *V, Type *DestTy,
1318 const Twine &Name = "") {
1319 return CreateCast(Instruction::AddrSpaceCast, V, DestTy, Name);
1321 Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
1322 const Twine &Name = "") {
1323 if (V->getType() == DestTy)
1325 if (Constant *VC = dyn_cast<Constant>(V))
1326 return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
1327 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
1329 Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
1330 const Twine &Name = "") {
1331 if (V->getType() == DestTy)
1333 if (Constant *VC = dyn_cast<Constant>(V))
1334 return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
1335 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
1337 Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
1338 const Twine &Name = "") {
1339 if (V->getType() == DestTy)
1341 if (Constant *VC = dyn_cast<Constant>(V))
1342 return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
1343 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
1345 Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
1346 const Twine &Name = "") {
1347 if (V->getType() == DestTy)
1349 if (Constant *VC = dyn_cast<Constant>(V))
1350 return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
1351 return Insert(CastInst::Create(Op, V, DestTy), Name);
1353 Value *CreatePointerCast(Value *V, Type *DestTy,
1354 const Twine &Name = "") {
1355 if (V->getType() == DestTy)
1357 if (Constant *VC = dyn_cast<Constant>(V))
1358 return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
1359 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
1362 Value *CreatePointerBitCastOrAddrSpaceCast(Value *V, Type *DestTy,
1363 const Twine &Name = "") {
1364 if (V->getType() == DestTy)
1367 if (Constant *VC = dyn_cast<Constant>(V)) {
1368 return Insert(Folder.CreatePointerBitCastOrAddrSpaceCast(VC, DestTy),
1372 return Insert(CastInst::CreatePointerBitCastOrAddrSpaceCast(V, DestTy),
1376 Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
1377 const Twine &Name = "") {
1378 if (V->getType() == DestTy)
1380 if (Constant *VC = dyn_cast<Constant>(V))
1381 return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
1382 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
1385 Value *CreateBitOrPointerCast(Value *V, Type *DestTy,
1386 const Twine &Name = "") {
1387 if (V->getType() == DestTy)
1389 if (V->getType()->getScalarType()->isPointerTy() &&
1390 DestTy->getScalarType()->isIntegerTy())
1391 return CreatePtrToInt(V, DestTy, Name);
1392 if (V->getType()->getScalarType()->isIntegerTy() &&
1393 DestTy->getScalarType()->isPointerTy())
1394 return CreateIntToPtr(V, DestTy, Name);
1396 return CreateBitCast(V, DestTy, Name);
1400 // \brief Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a
1401 // compile time error, instead of converting the string to bool for the
1402 // isSigned parameter.
1403 Value *CreateIntCast(Value *, Type *, const char *) = delete;
1406 Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
1407 if (V->getType() == DestTy)
1409 if (Constant *VC = dyn_cast<Constant>(V))
1410 return Insert(Folder.CreateFPCast(VC, DestTy), Name);
1411 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
1414 //===--------------------------------------------------------------------===//
1415 // Instruction creation methods: Compare Instructions
1416 //===--------------------------------------------------------------------===//
1418 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1419 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
1421 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1422 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
1424 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1425 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
1427 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1428 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
1430 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1431 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
1433 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1434 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
1436 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1437 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
1439 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1440 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
1442 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1443 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
1445 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1446 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
1449 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1450 MDNode *FPMathTag = nullptr) {
1451 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name, FPMathTag);
1453 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "",
1454 MDNode *FPMathTag = nullptr) {
1455 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name, FPMathTag);
1457 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "",
1458 MDNode *FPMathTag = nullptr) {
1459 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name, FPMathTag);
1461 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "",
1462 MDNode *FPMathTag = nullptr) {
1463 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name, FPMathTag);
1465 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "",
1466 MDNode *FPMathTag = nullptr) {
1467 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name, FPMathTag);
1469 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "",
1470 MDNode *FPMathTag = nullptr) {
1471 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name, FPMathTag);
1473 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "",
1474 MDNode *FPMathTag = nullptr) {
1475 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name, FPMathTag);
1477 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "",
1478 MDNode *FPMathTag = nullptr) {
1479 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name, FPMathTag);
1481 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1482 MDNode *FPMathTag = nullptr) {
1483 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name, FPMathTag);
1485 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "",
1486 MDNode *FPMathTag = nullptr) {
1487 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name, FPMathTag);
1489 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "",
1490 MDNode *FPMathTag = nullptr) {
1491 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name, FPMathTag);
1493 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "",
1494 MDNode *FPMathTag = nullptr) {
1495 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name, FPMathTag);
1497 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "",
1498 MDNode *FPMathTag = nullptr) {
1499 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name, FPMathTag);
1501 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "",
1502 MDNode *FPMathTag = nullptr) {
1503 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name, FPMathTag);
1506 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1507 const Twine &Name = "") {
1508 if (Constant *LC = dyn_cast<Constant>(LHS))
1509 if (Constant *RC = dyn_cast<Constant>(RHS))
1510 return Insert(Folder.CreateICmp(P, LC, RC), Name);
1511 return Insert(new ICmpInst(P, LHS, RHS), Name);
1513 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1514 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1515 if (Constant *LC = dyn_cast<Constant>(LHS))
1516 if (Constant *RC = dyn_cast<Constant>(RHS))
1517 return Insert(Folder.CreateFCmp(P, LC, RC), Name);
1518 return Insert(AddFPMathAttributes(new FCmpInst(P, LHS, RHS),
1519 FPMathTag, FMF), Name);
1522 //===--------------------------------------------------------------------===//
1523 // Instruction creation methods: Other Instructions
1524 //===--------------------------------------------------------------------===//
1526 PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
1527 const Twine &Name = "") {
1528 return Insert(PHINode::Create(Ty, NumReservedValues), Name);
1531 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args = None,
1532 const Twine &Name = "") {
1533 return Insert(CallInst::Create(Callee, Args), Name);
1536 CallInst *CreateCall(llvm::FunctionType *FTy, Value *Callee,
1537 ArrayRef<Value *> Args, const Twine &Name = "") {
1538 return Insert(CallInst::Create(FTy, Callee, Args), Name);
1541 CallInst *CreateCall(Function *Callee, ArrayRef<Value *> Args,
1542 const Twine &Name = "") {
1543 return CreateCall(Callee->getFunctionType(), Callee, Args, Name);
1546 Value *CreateSelect(Value *C, Value *True, Value *False,
1547 const Twine &Name = "") {
1548 if (Constant *CC = dyn_cast<Constant>(C))
1549 if (Constant *TC = dyn_cast<Constant>(True))
1550 if (Constant *FC = dyn_cast<Constant>(False))
1551 return Insert(Folder.CreateSelect(CC, TC, FC), Name);
1552 return Insert(SelectInst::Create(C, True, False), Name);
1555 VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
1556 return Insert(new VAArgInst(List, Ty), Name);
1559 Value *CreateExtractElement(Value *Vec, Value *Idx,
1560 const Twine &Name = "") {
1561 if (Constant *VC = dyn_cast<Constant>(Vec))
1562 if (Constant *IC = dyn_cast<Constant>(Idx))
1563 return Insert(Folder.CreateExtractElement(VC, IC), Name);
1564 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1567 Value *CreateExtractElement(Value *Vec, uint64_t Idx,
1568 const Twine &Name = "") {
1569 return CreateExtractElement(Vec, getInt64(Idx), Name);
1572 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1573 const Twine &Name = "") {
1574 if (Constant *VC = dyn_cast<Constant>(Vec))
1575 if (Constant *NC = dyn_cast<Constant>(NewElt))
1576 if (Constant *IC = dyn_cast<Constant>(Idx))
1577 return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
1578 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1581 Value *CreateInsertElement(Value *Vec, Value *NewElt, uint64_t Idx,
1582 const Twine &Name = "") {
1583 return CreateInsertElement(Vec, NewElt, getInt64(Idx), Name);
1586 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1587 const Twine &Name = "") {
1588 if (Constant *V1C = dyn_cast<Constant>(V1))
1589 if (Constant *V2C = dyn_cast<Constant>(V2))
1590 if (Constant *MC = dyn_cast<Constant>(Mask))
1591 return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
1592 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1595 Value *CreateShuffleVector(Value *V1, Value *V2, ArrayRef<int> IntMask,
1596 const Twine &Name = "") {
1597 size_t MaskSize = IntMask.size();
1598 SmallVector<Constant*, 8> MaskVec(MaskSize);
1599 for (size_t i = 0; i != MaskSize; ++i)
1600 MaskVec[i] = getInt32(IntMask[i]);
1601 Value *Mask = ConstantVector::get(MaskVec);
1602 return CreateShuffleVector(V1, V2, Mask, Name);
1605 Value *CreateExtractValue(Value *Agg,
1606 ArrayRef<unsigned> Idxs,
1607 const Twine &Name = "") {
1608 if (Constant *AggC = dyn_cast<Constant>(Agg))
1609 return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
1610 return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
1613 Value *CreateInsertValue(Value *Agg, Value *Val,
1614 ArrayRef<unsigned> Idxs,
1615 const Twine &Name = "") {
1616 if (Constant *AggC = dyn_cast<Constant>(Agg))
1617 if (Constant *ValC = dyn_cast<Constant>(Val))
1618 return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
1619 return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
1622 LandingPadInst *CreateLandingPad(Type *Ty, unsigned NumClauses,
1623 const Twine &Name = "") {
1624 return Insert(LandingPadInst::Create(Ty, NumClauses), Name);
1627 //===--------------------------------------------------------------------===//
1628 // Utility creation methods
1629 //===--------------------------------------------------------------------===//
1631 /// \brief Return an i1 value testing if \p Arg is null.
1632 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1633 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1637 /// \brief Return an i1 value testing if \p Arg is not null.
1638 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1639 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1643 /// \brief Return the i64 difference between two pointer values, dividing out
1644 /// the size of the pointed-to objects.
1646 /// This is intended to implement C-style pointer subtraction. As such, the
1647 /// pointers must be appropriately aligned for their element types and
1648 /// pointing into the same object.
1649 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1650 assert(LHS->getType() == RHS->getType() &&
1651 "Pointer subtraction operand types must match!");
1652 PointerType *ArgType = cast<PointerType>(LHS->getType());
1653 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1654 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1655 Value *Difference = CreateSub(LHS_int, RHS_int);
1656 return CreateExactSDiv(Difference,
1657 ConstantExpr::getSizeOf(ArgType->getElementType()),
1661 /// \brief Create an invariant.group.barrier intrinsic call, that stops
1662 /// optimizer to propagate equality using invariant.group metadata.
1663 /// If Ptr type is different from i8*, it's casted to i8* before call
1664 /// and casted back to Ptr type after call.
1665 Value *CreateInvariantGroupBarrier(Value *Ptr) {
1666 Module *M = BB->getParent()->getParent();
1667 Function *FnInvariantGroupBarrier = Intrinsic::getDeclaration(M,
1668 Intrinsic::invariant_group_barrier);
1670 Type *ArgumentAndReturnType = FnInvariantGroupBarrier->getReturnType();
1671 assert(ArgumentAndReturnType ==
1672 FnInvariantGroupBarrier->getFunctionType()->getParamType(0) &&
1673 "InvariantGroupBarrier should take and return the same type");
1674 Type *PtrType = Ptr->getType();
1676 bool PtrTypeConversionNeeded = PtrType != ArgumentAndReturnType;
1677 if (PtrTypeConversionNeeded)
1678 Ptr = CreateBitCast(Ptr, ArgumentAndReturnType);
1680 CallInst *Fn = CreateCall(FnInvariantGroupBarrier, {Ptr});
1682 if (PtrTypeConversionNeeded)
1683 return CreateBitCast(Fn, PtrType);
1687 /// \brief Return a vector value that contains \arg V broadcasted to \p
1688 /// NumElts elements.
1689 Value *CreateVectorSplat(unsigned NumElts, Value *V, const Twine &Name = "") {
1690 assert(NumElts > 0 && "Cannot splat to an empty vector!");
1692 // First insert it into an undef vector so we can shuffle it.
1693 Type *I32Ty = getInt32Ty();
1694 Value *Undef = UndefValue::get(VectorType::get(V->getType(), NumElts));
1695 V = CreateInsertElement(Undef, V, ConstantInt::get(I32Ty, 0),
1696 Name + ".splatinsert");
1698 // Shuffle the value across the desired number of elements.
1699 Value *Zeros = ConstantAggregateZero::get(VectorType::get(I32Ty, NumElts));
1700 return CreateShuffleVector(V, Undef, Zeros, Name + ".splat");
1703 /// \brief Return a value that has been extracted from a larger integer type.
1704 Value *CreateExtractInteger(const DataLayout &DL, Value *From,
1705 IntegerType *ExtractedTy, uint64_t Offset,
1706 const Twine &Name) {
1707 IntegerType *IntTy = cast<IntegerType>(From->getType());
1708 assert(DL.getTypeStoreSize(ExtractedTy) + Offset <=
1709 DL.getTypeStoreSize(IntTy) &&
1710 "Element extends past full value");
1711 uint64_t ShAmt = 8 * Offset;
1713 if (DL.isBigEndian())
1714 ShAmt = 8 * (DL.getTypeStoreSize(IntTy) -
1715 DL.getTypeStoreSize(ExtractedTy) - Offset);
1717 V = CreateLShr(V, ShAmt, Name + ".shift");
1719 assert(ExtractedTy->getBitWidth() <= IntTy->getBitWidth() &&
1720 "Cannot extract to a larger integer!");
1721 if (ExtractedTy != IntTy) {
1722 V = CreateTrunc(V, ExtractedTy, Name + ".trunc");
1727 /// \brief Create an assume intrinsic call that represents an alignment
1728 /// assumption on the provided pointer.
1730 /// An optional offset can be provided, and if it is provided, the offset
1731 /// must be subtracted from the provided pointer to get the pointer with the
1732 /// specified alignment.
1733 CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
1735 Value *OffsetValue = nullptr) {
1736 assert(isa<PointerType>(PtrValue->getType()) &&
1737 "trying to create an alignment assumption on a non-pointer?");
1739 PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
1740 Type *IntPtrTy = getIntPtrTy(DL, PtrTy->getAddressSpace());
1741 Value *PtrIntValue = CreatePtrToInt(PtrValue, IntPtrTy, "ptrint");
1743 Value *Mask = ConstantInt::get(IntPtrTy,
1744 Alignment > 0 ? Alignment - 1 : 0);
1746 bool IsOffsetZero = false;
1747 if (ConstantInt *CI = dyn_cast<ConstantInt>(OffsetValue))
1748 IsOffsetZero = CI->isZero();
1750 if (!IsOffsetZero) {
1751 if (OffsetValue->getType() != IntPtrTy)
1752 OffsetValue = CreateIntCast(OffsetValue, IntPtrTy, /*isSigned*/ true,
1754 PtrIntValue = CreateSub(PtrIntValue, OffsetValue, "offsetptr");
1758 Value *Zero = ConstantInt::get(IntPtrTy, 0);
1759 Value *MaskedPtr = CreateAnd(PtrIntValue, Mask, "maskedptr");
1760 Value *InvCond = CreateICmpEQ(MaskedPtr, Zero, "maskcond");
1762 return CreateAssumption(InvCond);
1766 // Create wrappers for C Binding types (see CBindingWrapping.h).
1767 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(IRBuilder<>, LLVMBuilderRef)
1769 } // end namespace llvm
1771 #endif // LLVM_IR_IRBUILDER_H