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/StringRef.h"
21 #include "llvm/ADT/Twine.h"
22 #include "llvm/IR/BasicBlock.h"
23 #include "llvm/IR/Constant.h"
24 #include "llvm/IR/ConstantFolder.h"
25 #include "llvm/IR/Constants.h"
26 #include "llvm/IR/DataLayout.h"
27 #include "llvm/IR/DebugLoc.h"
28 #include "llvm/IR/DerivedTypes.h"
29 #include "llvm/IR/Function.h"
30 #include "llvm/IR/GlobalVariable.h"
31 #include "llvm/IR/InstrTypes.h"
32 #include "llvm/IR/Instruction.h"
33 #include "llvm/IR/Instructions.h"
34 #include "llvm/IR/Intrinsics.h"
35 #include "llvm/IR/LLVMContext.h"
36 #include "llvm/IR/Module.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"
58 /// \brief This provides the default implementation of the IRBuilder
59 /// 'InsertHelper' method that is called whenever an instruction is created by
60 /// IRBuilder and needs to be inserted.
62 /// By default, this inserts the instruction at the insertion point.
63 class IRBuilderDefaultInserter {
65 void InsertHelper(Instruction *I, const Twine &Name,
66 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
67 if (BB) BB->getInstList().insert(InsertPt, I);
72 /// Provides an 'InsertHelper' that calls a user-provided callback after
73 /// performing the default insertion.
74 class IRBuilderCallbackInserter : IRBuilderDefaultInserter {
75 std::function<void(Instruction *)> Callback;
78 IRBuilderCallbackInserter(std::function<void(Instruction *)> Callback)
79 : Callback(std::move(Callback)) {}
82 void InsertHelper(Instruction *I, const Twine &Name,
83 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
84 IRBuilderDefaultInserter::InsertHelper(I, Name, BB, InsertPt);
89 /// \brief Common base class shared among various IRBuilders.
91 DebugLoc CurDbgLocation;
95 BasicBlock::iterator InsertPt;
98 MDNode *DefaultFPMathTag;
101 ArrayRef<OperandBundleDef> DefaultOperandBundles;
104 IRBuilderBase(LLVMContext &context, MDNode *FPMathTag = nullptr,
105 ArrayRef<OperandBundleDef> OpBundles = None)
106 : Context(context), DefaultFPMathTag(FPMathTag),
107 DefaultOperandBundles(OpBundles) {
108 ClearInsertionPoint();
111 //===--------------------------------------------------------------------===//
112 // Builder configuration methods
113 //===--------------------------------------------------------------------===//
115 /// \brief Clear the insertion point: created instructions will not be
116 /// inserted into a block.
117 void ClearInsertionPoint() {
119 InsertPt = BasicBlock::iterator();
122 BasicBlock *GetInsertBlock() const { return BB; }
123 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
124 LLVMContext &getContext() const { return Context; }
126 /// \brief This specifies that created instructions should be appended to the
127 /// end of the specified block.
128 void SetInsertPoint(BasicBlock *TheBB) {
130 InsertPt = BB->end();
133 /// \brief This specifies that created instructions should be inserted before
134 /// the specified instruction.
135 void SetInsertPoint(Instruction *I) {
137 InsertPt = I->getIterator();
138 assert(InsertPt != BB->end() && "Can't read debug loc from end()");
139 SetCurrentDebugLocation(I->getDebugLoc());
142 /// \brief This specifies that created instructions should be inserted at the
144 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
147 if (IP != TheBB->end())
148 SetCurrentDebugLocation(IP->getDebugLoc());
151 /// \brief Set location information used by debugging information.
152 void SetCurrentDebugLocation(DebugLoc L) { CurDbgLocation = std::move(L); }
154 /// \brief Get location information used by debugging information.
155 const DebugLoc &getCurrentDebugLocation() const { return CurDbgLocation; }
157 /// \brief If this builder has a current debug location, set it on the
158 /// specified instruction.
159 void SetInstDebugLocation(Instruction *I) const {
161 I->setDebugLoc(CurDbgLocation);
164 /// \brief Get the return type of the current function that we're emitting
166 Type *getCurrentFunctionReturnType() const;
168 /// InsertPoint - A saved insertion point.
170 BasicBlock *Block = nullptr;
171 BasicBlock::iterator Point;
174 /// \brief Creates a new insertion point which doesn't point to anything.
175 InsertPoint() = default;
177 /// \brief Creates a new insertion point at the given location.
178 InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
179 : Block(InsertBlock), Point(InsertPoint) {}
181 /// \brief Returns true if this insert point is set.
182 bool isSet() const { return (Block != nullptr); }
184 BasicBlock *getBlock() const { return Block; }
185 BasicBlock::iterator getPoint() const { return Point; }
188 /// \brief Returns the current insert point.
189 InsertPoint saveIP() const {
190 return InsertPoint(GetInsertBlock(), GetInsertPoint());
193 /// \brief Returns the current insert point, clearing it in the process.
194 InsertPoint saveAndClearIP() {
195 InsertPoint IP(GetInsertBlock(), GetInsertPoint());
196 ClearInsertionPoint();
200 /// \brief Sets the current insert point to a previously-saved location.
201 void restoreIP(InsertPoint IP) {
203 SetInsertPoint(IP.getBlock(), IP.getPoint());
205 ClearInsertionPoint();
208 /// \brief Get the floating point math metadata being used.
209 MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
211 /// \brief Get the flags to be applied to created floating point ops
212 FastMathFlags getFastMathFlags() const { return FMF; }
214 /// \brief Clear the fast-math flags.
215 void clearFastMathFlags() { FMF.clear(); }
217 /// \brief Set the floating point math metadata to be used.
218 void setDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
220 /// \brief Set the fast-math flags to be used with generated fp-math operators
221 void setFastMathFlags(FastMathFlags NewFMF) { FMF = NewFMF; }
223 //===--------------------------------------------------------------------===//
225 //===--------------------------------------------------------------------===//
227 // \brief RAII object that stores the current insertion point and restores it
228 // when the object is destroyed. This includes the debug location.
229 class InsertPointGuard {
230 IRBuilderBase &Builder;
231 AssertingVH<BasicBlock> Block;
232 BasicBlock::iterator Point;
236 InsertPointGuard(IRBuilderBase &B)
237 : Builder(B), Block(B.GetInsertBlock()), Point(B.GetInsertPoint()),
238 DbgLoc(B.getCurrentDebugLocation()) {}
240 InsertPointGuard(const InsertPointGuard &) = delete;
241 InsertPointGuard &operator=(const InsertPointGuard &) = delete;
243 ~InsertPointGuard() {
244 Builder.restoreIP(InsertPoint(Block, Point));
245 Builder.SetCurrentDebugLocation(DbgLoc);
249 // \brief RAII object that stores the current fast math settings and restores
250 // them when the object is destroyed.
251 class FastMathFlagGuard {
252 IRBuilderBase &Builder;
257 FastMathFlagGuard(IRBuilderBase &B)
258 : Builder(B), FMF(B.FMF), FPMathTag(B.DefaultFPMathTag) {}
260 FastMathFlagGuard(const FastMathFlagGuard &) = delete;
261 FastMathFlagGuard &operator=(const FastMathFlagGuard &) = delete;
263 ~FastMathFlagGuard() {
265 Builder.DefaultFPMathTag = FPMathTag;
269 //===--------------------------------------------------------------------===//
270 // Miscellaneous creation methods.
271 //===--------------------------------------------------------------------===//
273 /// \brief Make a new global variable with initializer type i8*
275 /// Make a new global variable with an initializer that has array of i8 type
276 /// filled in with the null terminated string value specified. The new global
277 /// variable will be marked mergable with any others of the same contents. If
278 /// Name is specified, it is the name of the global variable created.
279 GlobalVariable *CreateGlobalString(StringRef Str, const Twine &Name = "",
280 unsigned AddressSpace = 0);
282 /// \brief Get a constant value representing either true or false.
283 ConstantInt *getInt1(bool V) {
284 return ConstantInt::get(getInt1Ty(), V);
287 /// \brief Get the constant value for i1 true.
288 ConstantInt *getTrue() {
289 return ConstantInt::getTrue(Context);
292 /// \brief Get the constant value for i1 false.
293 ConstantInt *getFalse() {
294 return ConstantInt::getFalse(Context);
297 /// \brief Get a constant 8-bit value.
298 ConstantInt *getInt8(uint8_t C) {
299 return ConstantInt::get(getInt8Ty(), C);
302 /// \brief Get a constant 16-bit value.
303 ConstantInt *getInt16(uint16_t C) {
304 return ConstantInt::get(getInt16Ty(), C);
307 /// \brief Get a constant 32-bit value.
308 ConstantInt *getInt32(uint32_t C) {
309 return ConstantInt::get(getInt32Ty(), C);
312 /// \brief Get a constant 64-bit value.
313 ConstantInt *getInt64(uint64_t C) {
314 return ConstantInt::get(getInt64Ty(), C);
317 /// \brief Get a constant N-bit value, zero extended or truncated from
319 ConstantInt *getIntN(unsigned N, uint64_t C) {
320 return ConstantInt::get(getIntNTy(N), C);
323 /// \brief Get a constant integer value.
324 ConstantInt *getInt(const APInt &AI) {
325 return ConstantInt::get(Context, AI);
328 //===--------------------------------------------------------------------===//
329 // Type creation methods
330 //===--------------------------------------------------------------------===//
332 /// \brief Fetch the type representing a single bit
333 IntegerType *getInt1Ty() {
334 return Type::getInt1Ty(Context);
337 /// \brief Fetch the type representing an 8-bit integer.
338 IntegerType *getInt8Ty() {
339 return Type::getInt8Ty(Context);
342 /// \brief Fetch the type representing a 16-bit integer.
343 IntegerType *getInt16Ty() {
344 return Type::getInt16Ty(Context);
347 /// \brief Fetch the type representing a 32-bit integer.
348 IntegerType *getInt32Ty() {
349 return Type::getInt32Ty(Context);
352 /// \brief Fetch the type representing a 64-bit integer.
353 IntegerType *getInt64Ty() {
354 return Type::getInt64Ty(Context);
357 /// \brief Fetch the type representing a 128-bit integer.
358 IntegerType *getInt128Ty() { return Type::getInt128Ty(Context); }
360 /// \brief Fetch the type representing an N-bit integer.
361 IntegerType *getIntNTy(unsigned N) {
362 return Type::getIntNTy(Context, N);
365 /// \brief Fetch the type representing a 16-bit floating point value.
367 return Type::getHalfTy(Context);
370 /// \brief Fetch the type representing a 32-bit floating point value.
372 return Type::getFloatTy(Context);
375 /// \brief Fetch the type representing a 64-bit floating point value.
376 Type *getDoubleTy() {
377 return Type::getDoubleTy(Context);
380 /// \brief Fetch the type representing void.
382 return Type::getVoidTy(Context);
385 /// \brief Fetch the type representing a pointer to an 8-bit integer value.
386 PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
387 return Type::getInt8PtrTy(Context, AddrSpace);
390 /// \brief Fetch the type representing a pointer to an integer value.
391 IntegerType *getIntPtrTy(const DataLayout &DL, unsigned AddrSpace = 0) {
392 return DL.getIntPtrType(Context, AddrSpace);
395 //===--------------------------------------------------------------------===//
396 // Intrinsic creation methods
397 //===--------------------------------------------------------------------===//
399 /// \brief Create and insert a memset to the specified pointer and the
402 /// If the pointer isn't an i8*, it 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 *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
406 bool isVolatile = false, MDNode *TBAATag = nullptr,
407 MDNode *ScopeTag = nullptr,
408 MDNode *NoAliasTag = nullptr) {
409 return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile,
410 TBAATag, ScopeTag, NoAliasTag);
413 CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
414 bool isVolatile = false, MDNode *TBAATag = nullptr,
415 MDNode *ScopeTag = nullptr,
416 MDNode *NoAliasTag = nullptr);
418 /// \brief Create and insert a memcpy between the specified pointers.
420 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
421 /// specified, it will be added to the instruction. Likewise with alias.scope
422 /// and noalias tags.
423 CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
424 bool isVolatile = false, MDNode *TBAATag = nullptr,
425 MDNode *TBAAStructTag = nullptr,
426 MDNode *ScopeTag = nullptr,
427 MDNode *NoAliasTag = nullptr) {
428 return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
429 TBAAStructTag, ScopeTag, NoAliasTag);
432 CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
433 bool isVolatile = false, MDNode *TBAATag = nullptr,
434 MDNode *TBAAStructTag = nullptr,
435 MDNode *ScopeTag = nullptr,
436 MDNode *NoAliasTag = nullptr);
438 /// \brief Create and insert a memmove between the specified
441 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
442 /// specified, it will be added to the instruction. Likewise with alias.scope
443 /// and noalias tags.
444 CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
445 bool isVolatile = false, MDNode *TBAATag = nullptr,
446 MDNode *ScopeTag = nullptr,
447 MDNode *NoAliasTag = nullptr) {
448 return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile,
449 TBAATag, ScopeTag, NoAliasTag);
452 CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
453 bool isVolatile = false, MDNode *TBAATag = nullptr,
454 MDNode *ScopeTag = nullptr,
455 MDNode *NoAliasTag = nullptr);
457 /// \brief Create a lifetime.start intrinsic.
459 /// If the pointer isn't i8* it will be converted.
460 CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = nullptr);
462 /// \brief Create a lifetime.end intrinsic.
464 /// If the pointer isn't i8* it will be converted.
465 CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
467 /// Create a call to invariant.start intrinsic.
469 /// If the pointer isn't i8* it will be converted.
470 CallInst *CreateInvariantStart(Value *Ptr, ConstantInt *Size = nullptr);
472 /// \brief Create a call to Masked Load intrinsic
473 CallInst *CreateMaskedLoad(Value *Ptr, unsigned Align, Value *Mask,
474 Value *PassThru = nullptr, const Twine &Name = "");
476 /// \brief Create a call to Masked Store intrinsic
477 CallInst *CreateMaskedStore(Value *Val, Value *Ptr, unsigned Align,
480 /// \brief Create a call to Masked Gather intrinsic
481 CallInst *CreateMaskedGather(Value *Ptrs, unsigned Align,
482 Value *Mask = nullptr,
483 Value *PassThru = nullptr,
484 const Twine& Name = "");
486 /// \brief Create a call to Masked Scatter intrinsic
487 CallInst *CreateMaskedScatter(Value *Val, Value *Ptrs, unsigned Align,
488 Value *Mask = nullptr);
490 /// \brief Create an assume intrinsic call that allows the optimizer to
491 /// assume that the provided condition will be true.
492 CallInst *CreateAssumption(Value *Cond);
494 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
495 /// start a new statepoint sequence.
496 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
498 ArrayRef<Value *> CallArgs,
499 ArrayRef<Value *> DeoptArgs,
500 ArrayRef<Value *> GCArgs,
501 const Twine &Name = "");
503 /// \brief Create a call to the experimental.gc.statepoint intrinsic to
504 /// start a new statepoint sequence.
505 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
506 Value *ActualCallee, uint32_t Flags,
507 ArrayRef<Use> CallArgs,
508 ArrayRef<Use> TransitionArgs,
509 ArrayRef<Use> DeoptArgs,
510 ArrayRef<Value *> GCArgs,
511 const Twine &Name = "");
513 // \brief Conveninence function for the common case when CallArgs are filled
514 // in using makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be
515 // .get()'ed to get the Value pointer.
516 CallInst *CreateGCStatepointCall(uint64_t ID, uint32_t NumPatchBytes,
517 Value *ActualCallee, ArrayRef<Use> CallArgs,
518 ArrayRef<Value *> DeoptArgs,
519 ArrayRef<Value *> GCArgs,
520 const Twine &Name = "");
522 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
523 /// start a new statepoint sequence.
525 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
526 Value *ActualInvokee, BasicBlock *NormalDest,
527 BasicBlock *UnwindDest, ArrayRef<Value *> InvokeArgs,
528 ArrayRef<Value *> DeoptArgs,
529 ArrayRef<Value *> GCArgs, const Twine &Name = "");
531 /// brief Create an invoke to the experimental.gc.statepoint intrinsic to
532 /// start a new statepoint sequence.
533 InvokeInst *CreateGCStatepointInvoke(
534 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
535 BasicBlock *NormalDest, BasicBlock *UnwindDest, uint32_t Flags,
536 ArrayRef<Use> InvokeArgs, ArrayRef<Use> TransitionArgs,
537 ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs,
538 const Twine &Name = "");
540 // Conveninence function for the common case when CallArgs are filled in using
541 // makeArrayRef(CS.arg_begin(), CS.arg_end()); Use needs to be .get()'ed to
544 CreateGCStatepointInvoke(uint64_t ID, uint32_t NumPatchBytes,
545 Value *ActualInvokee, BasicBlock *NormalDest,
546 BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
547 ArrayRef<Value *> DeoptArgs,
548 ArrayRef<Value *> GCArgs, const Twine &Name = "");
550 /// \brief Create a call to the experimental.gc.result intrinsic to extract
551 /// the result from a call wrapped in a statepoint.
552 CallInst *CreateGCResult(Instruction *Statepoint,
554 const Twine &Name = "");
556 /// \brief Create a call to the experimental.gc.relocate intrinsics to
557 /// project the relocated value of one pointer from the statepoint.
558 CallInst *CreateGCRelocate(Instruction *Statepoint,
562 const Twine &Name = "");
564 /// Create a call to intrinsic \p ID with 2 operands which is mangled on the
566 CallInst *CreateBinaryIntrinsic(Intrinsic::ID ID,
567 Value *LHS, Value *RHS,
568 const Twine &Name = "");
570 /// Create call to the minnum intrinsic.
571 CallInst *CreateMinNum(Value *LHS, Value *RHS, const Twine &Name = "") {
572 return CreateBinaryIntrinsic(Intrinsic::minnum, LHS, RHS, Name);
575 /// Create call to the maxnum intrinsic.
576 CallInst *CreateMaxNum(Value *LHS, Value *RHS, const Twine &Name = "") {
577 return CreateBinaryIntrinsic(Intrinsic::minnum, LHS, RHS, Name);
581 /// \brief Create a call to a masked intrinsic with given Id.
582 CallInst *CreateMaskedIntrinsic(Intrinsic::ID Id, ArrayRef<Value *> Ops,
583 ArrayRef<Type *> OverloadedTypes,
584 const Twine &Name = "");
586 Value *getCastedInt8PtrValue(Value *Ptr);
589 /// \brief This provides a uniform API for creating instructions and inserting
590 /// them into a basic block: either at the end of a BasicBlock, or at a specific
591 /// iterator location in a block.
593 /// Note that the builder does not expose the full generality of LLVM
594 /// instructions. For access to extra instruction properties, use the mutators
595 /// (e.g. setVolatile) on the instructions after they have been
596 /// created. Convenience state exists to specify fast-math flags and fp-math
599 /// The first template argument specifies a class to use for creating constants.
600 /// This defaults to creating minimally folded constants. The second template
601 /// argument allows clients to specify custom insertion hooks that are called on
602 /// every newly created insertion.
603 template <typename T = ConstantFolder,
604 typename Inserter = IRBuilderDefaultInserter>
605 class IRBuilder : public IRBuilderBase, public Inserter {
609 IRBuilder(LLVMContext &C, const T &F, Inserter I = Inserter(),
610 MDNode *FPMathTag = nullptr,
611 ArrayRef<OperandBundleDef> OpBundles = None)
612 : IRBuilderBase(C, FPMathTag, OpBundles), Inserter(std::move(I)),
615 explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = nullptr,
616 ArrayRef<OperandBundleDef> OpBundles = None)
617 : IRBuilderBase(C, FPMathTag, OpBundles), Folder() {}
619 explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = nullptr,
620 ArrayRef<OperandBundleDef> OpBundles = None)
621 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder(F) {
622 SetInsertPoint(TheBB);
625 explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = nullptr,
626 ArrayRef<OperandBundleDef> OpBundles = None)
627 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder() {
628 SetInsertPoint(TheBB);
631 explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = nullptr,
632 ArrayRef<OperandBundleDef> OpBundles = None)
633 : IRBuilderBase(IP->getContext(), FPMathTag, OpBundles), Folder() {
637 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T &F,
638 MDNode *FPMathTag = nullptr,
639 ArrayRef<OperandBundleDef> OpBundles = None)
640 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder(F) {
641 SetInsertPoint(TheBB, IP);
644 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP,
645 MDNode *FPMathTag = nullptr,
646 ArrayRef<OperandBundleDef> OpBundles = None)
647 : IRBuilderBase(TheBB->getContext(), FPMathTag, OpBundles), Folder() {
648 SetInsertPoint(TheBB, IP);
651 /// \brief Get the constant folder being used.
652 const T &getFolder() { return Folder; }
654 /// \brief Insert and return the specified instruction.
655 template<typename InstTy>
656 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
657 this->InsertHelper(I, Name, BB, InsertPt);
658 this->SetInstDebugLocation(I);
662 /// \brief No-op overload to handle constants.
663 Constant *Insert(Constant *C, const Twine& = "") const {
667 //===--------------------------------------------------------------------===//
668 // Instruction creation methods: Terminators
669 //===--------------------------------------------------------------------===//
672 /// \brief Helper to add branch weight and unpredictable metadata onto an
674 /// \returns The annotated instruction.
675 template <typename InstTy>
676 InstTy *addBranchMetadata(InstTy *I, MDNode *Weights, MDNode *Unpredictable) {
678 I->setMetadata(LLVMContext::MD_prof, Weights);
680 I->setMetadata(LLVMContext::MD_unpredictable, Unpredictable);
685 /// \brief Create a 'ret void' instruction.
686 ReturnInst *CreateRetVoid() {
687 return Insert(ReturnInst::Create(Context));
690 /// \brief Create a 'ret <val>' instruction.
691 ReturnInst *CreateRet(Value *V) {
692 return Insert(ReturnInst::Create(Context, V));
695 /// \brief Create a sequence of N insertvalue instructions,
696 /// with one Value from the retVals array each, that build a aggregate
697 /// return value one value at a time, and a ret instruction to return
698 /// the resulting aggregate value.
700 /// This is a convenience function for code that uses aggregate return values
701 /// as a vehicle for having multiple return values.
702 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
703 Value *V = UndefValue::get(getCurrentFunctionReturnType());
704 for (unsigned i = 0; i != N; ++i)
705 V = CreateInsertValue(V, retVals[i], i, "mrv");
706 return Insert(ReturnInst::Create(Context, V));
709 /// \brief Create an unconditional 'br label X' instruction.
710 BranchInst *CreateBr(BasicBlock *Dest) {
711 return Insert(BranchInst::Create(Dest));
714 /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
716 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
717 MDNode *BranchWeights = nullptr,
718 MDNode *Unpredictable = nullptr) {
719 return Insert(addBranchMetadata(BranchInst::Create(True, False, Cond),
720 BranchWeights, Unpredictable));
723 /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
724 /// instruction. Copy branch meta data if available.
725 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
726 Instruction *MDSrc) {
727 BranchInst *Br = BranchInst::Create(True, False, Cond);
729 unsigned WL[4] = {LLVMContext::MD_prof, LLVMContext::MD_unpredictable,
730 LLVMContext::MD_make_implicit, LLVMContext::MD_dbg};
731 Br->copyMetadata(*MDSrc, makeArrayRef(&WL[0], 4));
736 /// \brief Create a switch instruction with the specified value, default dest,
737 /// and with a hint for the number of cases that will be added (for efficient
739 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10,
740 MDNode *BranchWeights = nullptr,
741 MDNode *Unpredictable = nullptr) {
742 return Insert(addBranchMetadata(SwitchInst::Create(V, Dest, NumCases),
743 BranchWeights, Unpredictable));
746 /// \brief Create an indirect branch instruction with the specified address
747 /// operand, with an optional hint for the number of destinations that will be
748 /// added (for efficient allocation).
749 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
750 return Insert(IndirectBrInst::Create(Addr, NumDests));
753 /// \brief Create an invoke instruction.
754 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
755 BasicBlock *UnwindDest,
756 ArrayRef<Value *> Args = None,
757 const Twine &Name = "") {
758 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
761 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
762 BasicBlock *UnwindDest, ArrayRef<Value *> Args,
763 ArrayRef<OperandBundleDef> OpBundles,
764 const Twine &Name = "") {
765 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
769 ResumeInst *CreateResume(Value *Exn) {
770 return Insert(ResumeInst::Create(Exn));
773 CleanupReturnInst *CreateCleanupRet(CleanupPadInst *CleanupPad,
774 BasicBlock *UnwindBB = nullptr) {
775 return Insert(CleanupReturnInst::Create(CleanupPad, UnwindBB));
778 CatchSwitchInst *CreateCatchSwitch(Value *ParentPad, BasicBlock *UnwindBB,
779 unsigned NumHandlers,
780 const Twine &Name = "") {
781 return Insert(CatchSwitchInst::Create(ParentPad, UnwindBB, NumHandlers),
785 CatchPadInst *CreateCatchPad(Value *ParentPad, ArrayRef<Value *> Args,
786 const Twine &Name = "") {
787 return Insert(CatchPadInst::Create(ParentPad, Args), Name);
790 CleanupPadInst *CreateCleanupPad(Value *ParentPad,
791 ArrayRef<Value *> Args = None,
792 const Twine &Name = "") {
793 return Insert(CleanupPadInst::Create(ParentPad, Args), Name);
796 CatchReturnInst *CreateCatchRet(CatchPadInst *CatchPad, BasicBlock *BB) {
797 return Insert(CatchReturnInst::Create(CatchPad, BB));
800 UnreachableInst *CreateUnreachable() {
801 return Insert(new UnreachableInst(Context));
804 //===--------------------------------------------------------------------===//
805 // Instruction creation methods: Binary Operators
806 //===--------------------------------------------------------------------===//
808 BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
809 Value *LHS, Value *RHS,
811 bool HasNUW, bool HasNSW) {
812 BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
813 if (HasNUW) BO->setHasNoUnsignedWrap();
814 if (HasNSW) BO->setHasNoSignedWrap();
818 Instruction *AddFPMathAttributes(Instruction *I,
820 FastMathFlags FMF) const {
822 FPMathTag = DefaultFPMathTag;
824 I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
825 I->setFastMathFlags(FMF);
830 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
831 bool HasNUW = false, bool HasNSW = false) {
832 if (Constant *LC = dyn_cast<Constant>(LHS))
833 if (Constant *RC = dyn_cast<Constant>(RHS))
834 return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
835 return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
838 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
839 return CreateAdd(LHS, RHS, Name, false, true);
841 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
842 return CreateAdd(LHS, RHS, Name, true, false);
844 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
845 MDNode *FPMathTag = nullptr) {
846 if (Constant *LC = dyn_cast<Constant>(LHS))
847 if (Constant *RC = dyn_cast<Constant>(RHS))
848 return Insert(Folder.CreateFAdd(LC, RC), Name);
849 return Insert(AddFPMathAttributes(BinaryOperator::CreateFAdd(LHS, RHS),
850 FPMathTag, FMF), Name);
852 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
853 bool HasNUW = false, bool HasNSW = false) {
854 if (Constant *LC = dyn_cast<Constant>(LHS))
855 if (Constant *RC = dyn_cast<Constant>(RHS))
856 return Insert(Folder.CreateSub(LC, RC, HasNUW, HasNSW), Name);
857 return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
860 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
861 return CreateSub(LHS, RHS, Name, false, true);
863 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
864 return CreateSub(LHS, RHS, Name, true, false);
866 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
867 MDNode *FPMathTag = nullptr) {
868 if (Constant *LC = dyn_cast<Constant>(LHS))
869 if (Constant *RC = dyn_cast<Constant>(RHS))
870 return Insert(Folder.CreateFSub(LC, RC), Name);
871 return Insert(AddFPMathAttributes(BinaryOperator::CreateFSub(LHS, RHS),
872 FPMathTag, FMF), Name);
874 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
875 bool HasNUW = false, bool HasNSW = false) {
876 if (Constant *LC = dyn_cast<Constant>(LHS))
877 if (Constant *RC = dyn_cast<Constant>(RHS))
878 return Insert(Folder.CreateMul(LC, RC, HasNUW, HasNSW), Name);
879 return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
882 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
883 return CreateMul(LHS, RHS, Name, false, true);
885 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
886 return CreateMul(LHS, RHS, Name, true, false);
888 Value *CreateFMul(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.CreateFMul(LC, RC), Name);
893 return Insert(AddFPMathAttributes(BinaryOperator::CreateFMul(LHS, RHS),
894 FPMathTag, FMF), Name);
896 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
897 bool isExact = false) {
898 if (Constant *LC = dyn_cast<Constant>(LHS))
899 if (Constant *RC = dyn_cast<Constant>(RHS))
900 return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
902 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
903 return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
905 Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
906 return CreateUDiv(LHS, RHS, Name, true);
908 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
909 bool isExact = false) {
910 if (Constant *LC = dyn_cast<Constant>(LHS))
911 if (Constant *RC = dyn_cast<Constant>(RHS))
912 return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
914 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
915 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
917 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
918 return CreateSDiv(LHS, RHS, Name, true);
920 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
921 MDNode *FPMathTag = nullptr) {
922 if (Constant *LC = dyn_cast<Constant>(LHS))
923 if (Constant *RC = dyn_cast<Constant>(RHS))
924 return Insert(Folder.CreateFDiv(LC, RC), Name);
925 return Insert(AddFPMathAttributes(BinaryOperator::CreateFDiv(LHS, RHS),
926 FPMathTag, FMF), Name);
928 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
929 if (Constant *LC = dyn_cast<Constant>(LHS))
930 if (Constant *RC = dyn_cast<Constant>(RHS))
931 return Insert(Folder.CreateURem(LC, RC), Name);
932 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
934 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
935 if (Constant *LC = dyn_cast<Constant>(LHS))
936 if (Constant *RC = dyn_cast<Constant>(RHS))
937 return Insert(Folder.CreateSRem(LC, RC), Name);
938 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
940 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
941 MDNode *FPMathTag = nullptr) {
942 if (Constant *LC = dyn_cast<Constant>(LHS))
943 if (Constant *RC = dyn_cast<Constant>(RHS))
944 return Insert(Folder.CreateFRem(LC, RC), Name);
945 return Insert(AddFPMathAttributes(BinaryOperator::CreateFRem(LHS, RHS),
946 FPMathTag, FMF), Name);
949 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
950 bool HasNUW = false, bool HasNSW = false) {
951 if (Constant *LC = dyn_cast<Constant>(LHS))
952 if (Constant *RC = dyn_cast<Constant>(RHS))
953 return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
954 return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
957 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
958 bool HasNUW = false, bool HasNSW = false) {
959 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
962 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
963 bool HasNUW = false, bool HasNSW = false) {
964 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
968 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
969 bool isExact = false) {
970 if (Constant *LC = dyn_cast<Constant>(LHS))
971 if (Constant *RC = dyn_cast<Constant>(RHS))
972 return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
974 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
975 return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
977 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
978 bool isExact = false) {
979 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
981 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
982 bool isExact = false) {
983 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
986 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
987 bool isExact = false) {
988 if (Constant *LC = dyn_cast<Constant>(LHS))
989 if (Constant *RC = dyn_cast<Constant>(RHS))
990 return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
992 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
993 return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
995 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
996 bool isExact = false) {
997 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
999 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
1000 bool isExact = false) {
1001 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
1004 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
1005 if (Constant *RC = dyn_cast<Constant>(RHS)) {
1006 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
1007 return LHS; // LHS & -1 -> LHS
1008 if (Constant *LC = dyn_cast<Constant>(LHS))
1009 return Insert(Folder.CreateAnd(LC, RC), Name);
1011 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
1013 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
1014 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1016 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
1017 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1020 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
1021 if (Constant *RC = dyn_cast<Constant>(RHS)) {
1022 if (RC->isNullValue())
1023 return LHS; // LHS | 0 -> LHS
1024 if (Constant *LC = dyn_cast<Constant>(LHS))
1025 return Insert(Folder.CreateOr(LC, RC), Name);
1027 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
1029 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
1030 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1032 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
1033 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1036 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
1037 if (Constant *LC = dyn_cast<Constant>(LHS))
1038 if (Constant *RC = dyn_cast<Constant>(RHS))
1039 return Insert(Folder.CreateXor(LC, RC), Name);
1040 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
1042 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
1043 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1045 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
1046 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
1049 Value *CreateBinOp(Instruction::BinaryOps Opc,
1050 Value *LHS, Value *RHS, const Twine &Name = "",
1051 MDNode *FPMathTag = nullptr) {
1052 if (Constant *LC = dyn_cast<Constant>(LHS))
1053 if (Constant *RC = dyn_cast<Constant>(RHS))
1054 return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
1055 Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
1056 if (isa<FPMathOperator>(BinOp))
1057 BinOp = AddFPMathAttributes(BinOp, FPMathTag, FMF);
1058 return Insert(BinOp, Name);
1061 Value *CreateNeg(Value *V, const Twine &Name = "",
1062 bool HasNUW = false, bool HasNSW = false) {
1063 if (Constant *VC = dyn_cast<Constant>(V))
1064 return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
1065 BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
1066 if (HasNUW) BO->setHasNoUnsignedWrap();
1067 if (HasNSW) BO->setHasNoSignedWrap();
1070 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
1071 return CreateNeg(V, Name, false, true);
1073 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
1074 return CreateNeg(V, Name, true, false);
1076 Value *CreateFNeg(Value *V, const Twine &Name = "",
1077 MDNode *FPMathTag = nullptr) {
1078 if (Constant *VC = dyn_cast<Constant>(V))
1079 return Insert(Folder.CreateFNeg(VC), Name);
1080 return Insert(AddFPMathAttributes(BinaryOperator::CreateFNeg(V),
1081 FPMathTag, FMF), Name);
1083 Value *CreateNot(Value *V, const Twine &Name = "") {
1084 if (Constant *VC = dyn_cast<Constant>(V))
1085 return Insert(Folder.CreateNot(VC), Name);
1086 return Insert(BinaryOperator::CreateNot(V), Name);
1089 //===--------------------------------------------------------------------===//
1090 // Instruction creation methods: Memory Instructions
1091 //===--------------------------------------------------------------------===//
1093 AllocaInst *CreateAlloca(Type *Ty, unsigned AddrSpace,
1094 Value *ArraySize = nullptr, const Twine &Name = "") {
1095 return Insert(new AllocaInst(Ty, AddrSpace, ArraySize), Name);
1098 AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = nullptr,
1099 const Twine &Name = "") {
1100 const DataLayout &DL = BB->getParent()->getParent()->getDataLayout();
1101 return Insert(new AllocaInst(Ty, DL.getAllocaAddrSpace(), ArraySize), Name);
1103 // \brief Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
1104 // converting the string to 'bool' for the isVolatile parameter.
1105 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
1106 return Insert(new LoadInst(Ptr), Name);
1108 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
1109 return Insert(new LoadInst(Ptr), Name);
1111 LoadInst *CreateLoad(Type *Ty, Value *Ptr, const Twine &Name = "") {
1112 return Insert(new LoadInst(Ty, Ptr), Name);
1114 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
1115 return Insert(new LoadInst(Ptr, nullptr, isVolatile), Name);
1117 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
1118 return Insert(new StoreInst(Val, Ptr, isVolatile));
1120 // \brief Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")'
1121 // correctly, instead of converting the string to 'bool' for the isVolatile
1123 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
1124 LoadInst *LI = CreateLoad(Ptr, Name);
1125 LI->setAlignment(Align);
1128 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
1129 const Twine &Name = "") {
1130 LoadInst *LI = CreateLoad(Ptr, Name);
1131 LI->setAlignment(Align);
1134 LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
1135 const Twine &Name = "") {
1136 LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
1137 LI->setAlignment(Align);
1140 StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
1141 bool isVolatile = false) {
1142 StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
1143 SI->setAlignment(Align);
1146 FenceInst *CreateFence(AtomicOrdering Ordering,
1147 SynchronizationScope SynchScope = CrossThread,
1148 const Twine &Name = "") {
1149 return Insert(new FenceInst(Context, Ordering, SynchScope), Name);
1152 CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
1153 AtomicOrdering SuccessOrdering,
1154 AtomicOrdering FailureOrdering,
1155 SynchronizationScope SynchScope = CrossThread) {
1156 return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering,
1157 FailureOrdering, SynchScope));
1159 AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
1160 AtomicOrdering Ordering,
1161 SynchronizationScope SynchScope = CrossThread) {
1162 return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
1164 Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1165 const Twine &Name = "") {
1166 return CreateGEP(nullptr, Ptr, IdxList, Name);
1168 Value *CreateGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1169 const Twine &Name = "") {
1170 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1171 // Every index must be constant.
1173 for (i = 0, e = IdxList.size(); i != e; ++i)
1174 if (!isa<Constant>(IdxList[i]))
1177 return Insert(Folder.CreateGetElementPtr(Ty, PC, IdxList), Name);
1179 return Insert(GetElementPtrInst::Create(Ty, Ptr, IdxList), Name);
1181 Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
1182 const Twine &Name = "") {
1183 return CreateInBoundsGEP(nullptr, Ptr, IdxList, Name);
1185 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
1186 const Twine &Name = "") {
1187 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
1188 // Every index must be constant.
1190 for (i = 0, e = IdxList.size(); i != e; ++i)
1191 if (!isa<Constant>(IdxList[i]))
1194 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IdxList),
1197 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, IdxList), Name);
1199 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
1200 return CreateGEP(nullptr, Ptr, Idx, Name);
1202 Value *CreateGEP(Type *Ty, Value *Ptr, Value *Idx, const Twine &Name = "") {
1203 if (Constant *PC = dyn_cast<Constant>(Ptr))
1204 if (Constant *IC = dyn_cast<Constant>(Idx))
1205 return Insert(Folder.CreateGetElementPtr(Ty, PC, IC), Name);
1206 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1208 Value *CreateInBoundsGEP(Type *Ty, Value *Ptr, Value *Idx,
1209 const Twine &Name = "") {
1210 if (Constant *PC = dyn_cast<Constant>(Ptr))
1211 if (Constant *IC = dyn_cast<Constant>(Idx))
1212 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, IC), Name);
1213 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1215 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
1216 return CreateConstGEP1_32(nullptr, Ptr, Idx0, Name);
1218 Value *CreateConstGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1219 const Twine &Name = "") {
1220 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1222 if (Constant *PC = dyn_cast<Constant>(Ptr))
1223 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idx), Name);
1225 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idx), Name);
1227 Value *CreateConstInBoundsGEP1_32(Type *Ty, Value *Ptr, unsigned Idx0,
1228 const Twine &Name = "") {
1229 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
1231 if (Constant *PC = dyn_cast<Constant>(Ptr))
1232 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idx), Name);
1234 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idx), Name);
1236 Value *CreateConstGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0, unsigned Idx1,
1237 const Twine &Name = "") {
1239 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1240 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1243 if (Constant *PC = dyn_cast<Constant>(Ptr))
1244 return Insert(Folder.CreateGetElementPtr(Ty, PC, Idxs), Name);
1246 return Insert(GetElementPtrInst::Create(Ty, Ptr, Idxs), Name);
1248 Value *CreateConstInBoundsGEP2_32(Type *Ty, Value *Ptr, unsigned Idx0,
1249 unsigned Idx1, const Twine &Name = "") {
1251 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
1252 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
1255 if (Constant *PC = dyn_cast<Constant>(Ptr))
1256 return Insert(Folder.CreateInBoundsGetElementPtr(Ty, PC, Idxs), Name);
1258 return Insert(GetElementPtrInst::CreateInBounds(Ty, Ptr, Idxs), Name);
1260 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
1261 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1263 if (Constant *PC = dyn_cast<Constant>(Ptr))
1264 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idx), Name);
1266 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idx), Name);
1268 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
1269 const Twine &Name = "") {
1270 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
1272 if (Constant *PC = dyn_cast<Constant>(Ptr))
1273 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idx), Name);
1275 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idx), Name);
1277 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1278 const Twine &Name = "") {
1280 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1281 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1284 if (Constant *PC = dyn_cast<Constant>(Ptr))
1285 return Insert(Folder.CreateGetElementPtr(nullptr, PC, Idxs), Name);
1287 return Insert(GetElementPtrInst::Create(nullptr, Ptr, Idxs), Name);
1289 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
1290 const Twine &Name = "") {
1292 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
1293 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
1296 if (Constant *PC = dyn_cast<Constant>(Ptr))
1297 return Insert(Folder.CreateInBoundsGetElementPtr(nullptr, PC, Idxs),
1300 return Insert(GetElementPtrInst::CreateInBounds(nullptr, Ptr, Idxs), Name);
1302 Value *CreateStructGEP(Type *Ty, Value *Ptr, unsigned Idx,
1303 const Twine &Name = "") {
1304 return CreateConstInBoundsGEP2_32(Ty, Ptr, 0, Idx, Name);
1307 /// \brief Same as CreateGlobalString, but return a pointer with "i8*" type
1308 /// instead of a pointer to array of i8.
1309 Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "",
1310 unsigned AddressSpace = 0) {
1311 GlobalVariable *gv = CreateGlobalString(Str, Name, AddressSpace);
1312 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
1313 Value *Args[] = { zero, zero };
1314 return CreateInBoundsGEP(gv->getValueType(), gv, Args, Name);
1317 //===--------------------------------------------------------------------===//
1318 // Instruction creation methods: Cast/Conversion Operators
1319 //===--------------------------------------------------------------------===//
1321 Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
1322 return CreateCast(Instruction::Trunc, V, DestTy, Name);
1324 Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
1325 return CreateCast(Instruction::ZExt, V, DestTy, Name);
1327 Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
1328 return CreateCast(Instruction::SExt, V, DestTy, Name);
1330 /// \brief Create a ZExt or Trunc from the integer value V to DestTy. Return
1331 /// the value untouched if the type of V is already DestTy.
1332 Value *CreateZExtOrTrunc(Value *V, Type *DestTy,
1333 const Twine &Name = "") {
1334 assert(V->getType()->isIntOrIntVectorTy() &&
1335 DestTy->isIntOrIntVectorTy() &&
1336 "Can only zero extend/truncate integers!");
1337 Type *VTy = V->getType();
1338 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1339 return CreateZExt(V, DestTy, Name);
1340 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1341 return CreateTrunc(V, DestTy, Name);
1344 /// \brief Create a SExt or Trunc from the integer value V to DestTy. Return
1345 /// the value untouched if the type of V is already DestTy.
1346 Value *CreateSExtOrTrunc(Value *V, Type *DestTy,
1347 const Twine &Name = "") {
1348 assert(V->getType()->isIntOrIntVectorTy() &&
1349 DestTy->isIntOrIntVectorTy() &&
1350 "Can only sign extend/truncate integers!");
1351 Type *VTy = V->getType();
1352 if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
1353 return CreateSExt(V, DestTy, Name);
1354 if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
1355 return CreateTrunc(V, DestTy, Name);
1358 Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
1359 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
1361 Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
1362 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
1364 Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1365 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
1367 Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
1368 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
1370 Value *CreateFPTrunc(Value *V, Type *DestTy,
1371 const Twine &Name = "") {
1372 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
1374 Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
1375 return CreateCast(Instruction::FPExt, V, DestTy, Name);
1377 Value *CreatePtrToInt(Value *V, Type *DestTy,
1378 const Twine &Name = "") {
1379 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
1381 Value *CreateIntToPtr(Value *V, Type *DestTy,
1382 const Twine &Name = "") {
1383 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
1385 Value *CreateBitCast(Value *V, Type *DestTy,
1386 const Twine &Name = "") {
1387 return CreateCast(Instruction::BitCast, V, DestTy, Name);
1389 Value *CreateAddrSpaceCast(Value *V, Type *DestTy,
1390 const Twine &Name = "") {
1391 return CreateCast(Instruction::AddrSpaceCast, V, DestTy, Name);
1393 Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
1394 const Twine &Name = "") {
1395 if (V->getType() == DestTy)
1397 if (Constant *VC = dyn_cast<Constant>(V))
1398 return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
1399 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
1401 Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
1402 const Twine &Name = "") {
1403 if (V->getType() == DestTy)
1405 if (Constant *VC = dyn_cast<Constant>(V))
1406 return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
1407 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
1409 Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
1410 const Twine &Name = "") {
1411 if (V->getType() == DestTy)
1413 if (Constant *VC = dyn_cast<Constant>(V))
1414 return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
1415 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
1417 Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
1418 const Twine &Name = "") {
1419 if (V->getType() == DestTy)
1421 if (Constant *VC = dyn_cast<Constant>(V))
1422 return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
1423 return Insert(CastInst::Create(Op, V, DestTy), Name);
1425 Value *CreatePointerCast(Value *V, Type *DestTy,
1426 const Twine &Name = "") {
1427 if (V->getType() == DestTy)
1429 if (Constant *VC = dyn_cast<Constant>(V))
1430 return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
1431 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
1434 Value *CreatePointerBitCastOrAddrSpaceCast(Value *V, Type *DestTy,
1435 const Twine &Name = "") {
1436 if (V->getType() == DestTy)
1439 if (Constant *VC = dyn_cast<Constant>(V)) {
1440 return Insert(Folder.CreatePointerBitCastOrAddrSpaceCast(VC, DestTy),
1444 return Insert(CastInst::CreatePointerBitCastOrAddrSpaceCast(V, DestTy),
1448 Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
1449 const Twine &Name = "") {
1450 if (V->getType() == DestTy)
1452 if (Constant *VC = dyn_cast<Constant>(V))
1453 return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
1454 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
1457 Value *CreateBitOrPointerCast(Value *V, Type *DestTy,
1458 const Twine &Name = "") {
1459 if (V->getType() == DestTy)
1461 if (V->getType()->getScalarType()->isPointerTy() &&
1462 DestTy->getScalarType()->isIntegerTy())
1463 return CreatePtrToInt(V, DestTy, Name);
1464 if (V->getType()->getScalarType()->isIntegerTy() &&
1465 DestTy->getScalarType()->isPointerTy())
1466 return CreateIntToPtr(V, DestTy, Name);
1468 return CreateBitCast(V, DestTy, Name);
1472 Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
1473 if (V->getType() == DestTy)
1475 if (Constant *VC = dyn_cast<Constant>(V))
1476 return Insert(Folder.CreateFPCast(VC, DestTy), Name);
1477 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
1480 // \brief Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a
1481 // compile time error, instead of converting the string to bool for the
1482 // isSigned parameter.
1483 Value *CreateIntCast(Value *, Type *, const char *) = delete;
1485 //===--------------------------------------------------------------------===//
1486 // Instruction creation methods: Compare Instructions
1487 //===--------------------------------------------------------------------===//
1489 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1490 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
1492 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1493 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
1495 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1496 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
1498 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1499 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
1501 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1502 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
1504 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1505 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
1507 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1508 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
1510 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1511 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
1513 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1514 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
1516 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1517 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
1520 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1521 MDNode *FPMathTag = nullptr) {
1522 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name, FPMathTag);
1524 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "",
1525 MDNode *FPMathTag = nullptr) {
1526 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name, FPMathTag);
1528 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "",
1529 MDNode *FPMathTag = nullptr) {
1530 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name, FPMathTag);
1532 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "",
1533 MDNode *FPMathTag = nullptr) {
1534 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name, FPMathTag);
1536 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "",
1537 MDNode *FPMathTag = nullptr) {
1538 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name, FPMathTag);
1540 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "",
1541 MDNode *FPMathTag = nullptr) {
1542 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name, FPMathTag);
1544 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "",
1545 MDNode *FPMathTag = nullptr) {
1546 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name, FPMathTag);
1548 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "",
1549 MDNode *FPMathTag = nullptr) {
1550 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name, FPMathTag);
1552 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "",
1553 MDNode *FPMathTag = nullptr) {
1554 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name, FPMathTag);
1556 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "",
1557 MDNode *FPMathTag = nullptr) {
1558 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name, FPMathTag);
1560 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "",
1561 MDNode *FPMathTag = nullptr) {
1562 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name, FPMathTag);
1564 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "",
1565 MDNode *FPMathTag = nullptr) {
1566 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name, FPMathTag);
1568 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "",
1569 MDNode *FPMathTag = nullptr) {
1570 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name, FPMathTag);
1572 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "",
1573 MDNode *FPMathTag = nullptr) {
1574 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name, FPMathTag);
1577 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1578 const Twine &Name = "") {
1579 if (Constant *LC = dyn_cast<Constant>(LHS))
1580 if (Constant *RC = dyn_cast<Constant>(RHS))
1581 return Insert(Folder.CreateICmp(P, LC, RC), Name);
1582 return Insert(new ICmpInst(P, LHS, RHS), Name);
1584 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1585 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1586 if (Constant *LC = dyn_cast<Constant>(LHS))
1587 if (Constant *RC = dyn_cast<Constant>(RHS))
1588 return Insert(Folder.CreateFCmp(P, LC, RC), Name);
1589 return Insert(AddFPMathAttributes(new FCmpInst(P, LHS, RHS),
1590 FPMathTag, FMF), Name);
1593 //===--------------------------------------------------------------------===//
1594 // Instruction creation methods: Other Instructions
1595 //===--------------------------------------------------------------------===//
1597 PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
1598 const Twine &Name = "") {
1599 return Insert(PHINode::Create(Ty, NumReservedValues), Name);
1602 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args = None,
1603 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1604 PointerType *PTy = cast<PointerType>(Callee->getType());
1605 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1606 return CreateCall(FTy, Callee, Args, Name, FPMathTag);
1609 CallInst *CreateCall(FunctionType *FTy, Value *Callee,
1610 ArrayRef<Value *> Args, const Twine &Name = "",
1611 MDNode *FPMathTag = nullptr) {
1612 CallInst *CI = CallInst::Create(FTy, Callee, Args, DefaultOperandBundles);
1613 if (isa<FPMathOperator>(CI))
1614 CI = cast<CallInst>(AddFPMathAttributes(CI, FPMathTag, FMF));
1615 return Insert(CI, Name);
1618 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
1619 ArrayRef<OperandBundleDef> OpBundles,
1620 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1621 CallInst *CI = CallInst::Create(Callee, Args, OpBundles);
1622 if (isa<FPMathOperator>(CI))
1623 CI = cast<CallInst>(AddFPMathAttributes(CI, FPMathTag, FMF));
1624 return Insert(CI, Name);
1627 CallInst *CreateCall(Function *Callee, ArrayRef<Value *> Args,
1628 const Twine &Name = "", MDNode *FPMathTag = nullptr) {
1629 return CreateCall(Callee->getFunctionType(), Callee, Args, Name, FPMathTag);
1632 Value *CreateSelect(Value *C, Value *True, Value *False,
1633 const Twine &Name = "", Instruction *MDFrom = nullptr) {
1634 if (Constant *CC = dyn_cast<Constant>(C))
1635 if (Constant *TC = dyn_cast<Constant>(True))
1636 if (Constant *FC = dyn_cast<Constant>(False))
1637 return Insert(Folder.CreateSelect(CC, TC, FC), Name);
1639 SelectInst *Sel = SelectInst::Create(C, True, False);
1641 MDNode *Prof = MDFrom->getMetadata(LLVMContext::MD_prof);
1642 MDNode *Unpred = MDFrom->getMetadata(LLVMContext::MD_unpredictable);
1643 Sel = addBranchMetadata(Sel, Prof, Unpred);
1645 return Insert(Sel, Name);
1648 VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
1649 return Insert(new VAArgInst(List, Ty), Name);
1652 Value *CreateExtractElement(Value *Vec, Value *Idx,
1653 const Twine &Name = "") {
1654 if (Constant *VC = dyn_cast<Constant>(Vec))
1655 if (Constant *IC = dyn_cast<Constant>(Idx))
1656 return Insert(Folder.CreateExtractElement(VC, IC), Name);
1657 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1660 Value *CreateExtractElement(Value *Vec, uint64_t Idx,
1661 const Twine &Name = "") {
1662 return CreateExtractElement(Vec, getInt64(Idx), Name);
1665 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1666 const Twine &Name = "") {
1667 if (Constant *VC = dyn_cast<Constant>(Vec))
1668 if (Constant *NC = dyn_cast<Constant>(NewElt))
1669 if (Constant *IC = dyn_cast<Constant>(Idx))
1670 return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
1671 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1674 Value *CreateInsertElement(Value *Vec, Value *NewElt, uint64_t Idx,
1675 const Twine &Name = "") {
1676 return CreateInsertElement(Vec, NewElt, getInt64(Idx), Name);
1679 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1680 const Twine &Name = "") {
1681 if (Constant *V1C = dyn_cast<Constant>(V1))
1682 if (Constant *V2C = dyn_cast<Constant>(V2))
1683 if (Constant *MC = dyn_cast<Constant>(Mask))
1684 return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
1685 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1688 Value *CreateShuffleVector(Value *V1, Value *V2, ArrayRef<uint32_t> IntMask,
1689 const Twine &Name = "") {
1690 Value *Mask = ConstantDataVector::get(Context, IntMask);
1691 return CreateShuffleVector(V1, V2, Mask, Name);
1694 Value *CreateExtractValue(Value *Agg,
1695 ArrayRef<unsigned> Idxs,
1696 const Twine &Name = "") {
1697 if (Constant *AggC = dyn_cast<Constant>(Agg))
1698 return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
1699 return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
1702 Value *CreateInsertValue(Value *Agg, Value *Val,
1703 ArrayRef<unsigned> Idxs,
1704 const Twine &Name = "") {
1705 if (Constant *AggC = dyn_cast<Constant>(Agg))
1706 if (Constant *ValC = dyn_cast<Constant>(Val))
1707 return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
1708 return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
1711 LandingPadInst *CreateLandingPad(Type *Ty, unsigned NumClauses,
1712 const Twine &Name = "") {
1713 return Insert(LandingPadInst::Create(Ty, NumClauses), Name);
1716 //===--------------------------------------------------------------------===//
1717 // Utility creation methods
1718 //===--------------------------------------------------------------------===//
1720 /// \brief Return an i1 value testing if \p Arg is null.
1721 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1722 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1726 /// \brief Return an i1 value testing if \p Arg is not null.
1727 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1728 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1732 /// \brief Return the i64 difference between two pointer values, dividing out
1733 /// the size of the pointed-to objects.
1735 /// This is intended to implement C-style pointer subtraction. As such, the
1736 /// pointers must be appropriately aligned for their element types and
1737 /// pointing into the same object.
1738 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1739 assert(LHS->getType() == RHS->getType() &&
1740 "Pointer subtraction operand types must match!");
1741 PointerType *ArgType = cast<PointerType>(LHS->getType());
1742 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1743 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1744 Value *Difference = CreateSub(LHS_int, RHS_int);
1745 return CreateExactSDiv(Difference,
1746 ConstantExpr::getSizeOf(ArgType->getElementType()),
1750 /// \brief Create an invariant.group.barrier intrinsic call, that stops
1751 /// optimizer to propagate equality using invariant.group metadata.
1752 /// If Ptr type is different from i8*, it's casted to i8* before call
1753 /// and casted back to Ptr type after call.
1754 Value *CreateInvariantGroupBarrier(Value *Ptr) {
1755 Module *M = BB->getParent()->getParent();
1756 Function *FnInvariantGroupBarrier = Intrinsic::getDeclaration(M,
1757 Intrinsic::invariant_group_barrier);
1759 Type *ArgumentAndReturnType = FnInvariantGroupBarrier->getReturnType();
1760 assert(ArgumentAndReturnType ==
1761 FnInvariantGroupBarrier->getFunctionType()->getParamType(0) &&
1762 "InvariantGroupBarrier should take and return the same type");
1763 Type *PtrType = Ptr->getType();
1765 bool PtrTypeConversionNeeded = PtrType != ArgumentAndReturnType;
1766 if (PtrTypeConversionNeeded)
1767 Ptr = CreateBitCast(Ptr, ArgumentAndReturnType);
1769 CallInst *Fn = CreateCall(FnInvariantGroupBarrier, {Ptr});
1771 if (PtrTypeConversionNeeded)
1772 return CreateBitCast(Fn, PtrType);
1776 /// \brief Return a vector value that contains \arg V broadcasted to \p
1777 /// NumElts elements.
1778 Value *CreateVectorSplat(unsigned NumElts, Value *V, const Twine &Name = "") {
1779 assert(NumElts > 0 && "Cannot splat to an empty vector!");
1781 // First insert it into an undef vector so we can shuffle it.
1782 Type *I32Ty = getInt32Ty();
1783 Value *Undef = UndefValue::get(VectorType::get(V->getType(), NumElts));
1784 V = CreateInsertElement(Undef, V, ConstantInt::get(I32Ty, 0),
1785 Name + ".splatinsert");
1787 // Shuffle the value across the desired number of elements.
1788 Value *Zeros = ConstantAggregateZero::get(VectorType::get(I32Ty, NumElts));
1789 return CreateShuffleVector(V, Undef, Zeros, Name + ".splat");
1792 /// \brief Return a value that has been extracted from a larger integer type.
1793 Value *CreateExtractInteger(const DataLayout &DL, Value *From,
1794 IntegerType *ExtractedTy, uint64_t Offset,
1795 const Twine &Name) {
1796 IntegerType *IntTy = cast<IntegerType>(From->getType());
1797 assert(DL.getTypeStoreSize(ExtractedTy) + Offset <=
1798 DL.getTypeStoreSize(IntTy) &&
1799 "Element extends past full value");
1800 uint64_t ShAmt = 8 * Offset;
1802 if (DL.isBigEndian())
1803 ShAmt = 8 * (DL.getTypeStoreSize(IntTy) -
1804 DL.getTypeStoreSize(ExtractedTy) - Offset);
1806 V = CreateLShr(V, ShAmt, Name + ".shift");
1808 assert(ExtractedTy->getBitWidth() <= IntTy->getBitWidth() &&
1809 "Cannot extract to a larger integer!");
1810 if (ExtractedTy != IntTy) {
1811 V = CreateTrunc(V, ExtractedTy, Name + ".trunc");
1817 /// \brief Helper function that creates an assume intrinsic call that
1818 /// represents an alignment assumption on the provided Ptr, Mask, Type
1820 CallInst *CreateAlignmentAssumptionHelper(const DataLayout &DL,
1821 Value *PtrValue, Value *Mask,
1823 Value *OffsetValue) {
1824 Value *PtrIntValue = CreatePtrToInt(PtrValue, IntPtrTy, "ptrint");
1827 bool IsOffsetZero = false;
1828 if (ConstantInt *CI = dyn_cast<ConstantInt>(OffsetValue))
1829 IsOffsetZero = CI->isZero();
1831 if (!IsOffsetZero) {
1832 if (OffsetValue->getType() != IntPtrTy)
1833 OffsetValue = CreateIntCast(OffsetValue, IntPtrTy, /*isSigned*/ true,
1835 PtrIntValue = CreateSub(PtrIntValue, OffsetValue, "offsetptr");
1839 Value *Zero = ConstantInt::get(IntPtrTy, 0);
1840 Value *MaskedPtr = CreateAnd(PtrIntValue, Mask, "maskedptr");
1841 Value *InvCond = CreateICmpEQ(MaskedPtr, Zero, "maskcond");
1842 return CreateAssumption(InvCond);
1846 /// \brief Create an assume intrinsic call that represents an alignment
1847 /// assumption on the provided pointer.
1849 /// An optional offset can be provided, and if it is provided, the offset
1850 /// must be subtracted from the provided pointer to get the pointer with the
1851 /// specified alignment.
1852 CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
1854 Value *OffsetValue = nullptr) {
1855 assert(isa<PointerType>(PtrValue->getType()) &&
1856 "trying to create an alignment assumption on a non-pointer?");
1857 PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
1858 Type *IntPtrTy = getIntPtrTy(DL, PtrTy->getAddressSpace());
1860 Value *Mask = ConstantInt::get(IntPtrTy, Alignment > 0 ? Alignment - 1 : 0);
1861 return CreateAlignmentAssumptionHelper(DL, PtrValue, Mask, IntPtrTy,
1865 /// \brief Create an assume intrinsic call that represents an alignment
1866 /// assumption on the provided pointer.
1868 /// An optional offset can be provided, and if it is provided, the offset
1869 /// must be subtracted from the provided pointer to get the pointer with the
1870 /// specified alignment.
1872 /// This overload handles the condition where the Alignment is dependent
1873 /// on an existing value rather than a static value.
1874 CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
1876 Value *OffsetValue = nullptr) {
1877 assert(isa<PointerType>(PtrValue->getType()) &&
1878 "trying to create an alignment assumption on a non-pointer?");
1879 PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
1880 Type *IntPtrTy = getIntPtrTy(DL, PtrTy->getAddressSpace());
1882 if (Alignment->getType() != IntPtrTy)
1883 Alignment = CreateIntCast(Alignment, IntPtrTy, /*isSigned*/ true,
1886 CreateICmp(CmpInst::ICMP_SGT, Alignment,
1887 ConstantInt::get(Alignment->getType(), 0), "ispositive");
1888 Value *PositiveMask =
1889 CreateSub(Alignment, ConstantInt::get(IntPtrTy, 1), "positivemask");
1890 Value *Mask = CreateSelect(IsPositive, PositiveMask,
1891 ConstantInt::get(IntPtrTy, 0), "mask");
1893 return CreateAlignmentAssumptionHelper(DL, PtrValue, Mask, IntPtrTy,
1898 // Create wrappers for C Binding types (see CBindingWrapping.h).
1899 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(IRBuilder<>, LLVMBuilderRef)
1901 } // end namespace llvm
1903 #endif // LLVM_IR_IRBUILDER_H