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+//===---- llvm/IRBuilder.h - Builder for LLVM Instructions ------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the IRBuilder class, which is used as a convenient way
+// to create LLVM instructions with a consistent and simplified interface.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_IRBUILDER_H
+#define LLVM_IR_IRBUILDER_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Operator.h"
+#include "llvm/Support/ConstantFolder.h"
+
+namespace llvm {
+ class MDNode;
+
+/// \brief This provides the default implementation of the IRBuilder
+/// 'InsertHelper' method that is called whenever an instruction is created by
+/// IRBuilder and needs to be inserted.
+///
+/// By default, this inserts the instruction at the insertion point.
+template <bool preserveNames = true>
+class IRBuilderDefaultInserter {
+protected:
+ void InsertHelper(Instruction *I, const Twine &Name,
+ BasicBlock *BB, BasicBlock::iterator InsertPt) const {
+ if (BB) BB->getInstList().insert(InsertPt, I);
+ if (preserveNames)
+ I->setName(Name);
+ }
+};
+
+/// \brief Common base class shared among various IRBuilders.
+class IRBuilderBase {
+ DebugLoc CurDbgLocation;
+protected:
+ BasicBlock *BB;
+ BasicBlock::iterator InsertPt;
+ LLVMContext &Context;
+public:
+
+ IRBuilderBase(LLVMContext &context)
+ : Context(context) {
+ ClearInsertionPoint();
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Builder configuration methods
+ //===--------------------------------------------------------------------===//
+
+ /// \brief Clear the insertion point: created instructions will not be
+ /// inserted into a block.
+ void ClearInsertionPoint() {
+ BB = 0;
+ }
+
+ BasicBlock *GetInsertBlock() const { return BB; }
+ BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
+ LLVMContext &getContext() const { return Context; }
+
+ /// \brief This specifies that created instructions should be appended to the
+ /// end of the specified block.
+ void SetInsertPoint(BasicBlock *TheBB) {
+ BB = TheBB;
+ InsertPt = BB->end();
+ }
+
+ /// \brief This specifies that created instructions should be inserted before
+ /// the specified instruction.
+ void SetInsertPoint(Instruction *I) {
+ BB = I->getParent();
+ InsertPt = I;
+ SetCurrentDebugLocation(I->getDebugLoc());
+ }
+
+ /// \brief This specifies that created instructions should be inserted at the
+ /// specified point.
+ void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
+ BB = TheBB;
+ InsertPt = IP;
+ }
+
+ /// \brief Find the nearest point that dominates this use, and specify that
+ /// created instructions should be inserted at this point.
+ void SetInsertPoint(Use &U) {
+ Instruction *UseInst = cast<Instruction>(U.getUser());
+ if (PHINode *Phi = dyn_cast<PHINode>(UseInst)) {
+ BasicBlock *PredBB = Phi->getIncomingBlock(U);
+ assert(U != PredBB->getTerminator() && "critical edge not split");
+ SetInsertPoint(PredBB, PredBB->getTerminator());
+ return;
+ }
+ SetInsertPoint(UseInst);
+ }
+
+ /// \brief Set location information used by debugging information.
+ void SetCurrentDebugLocation(const DebugLoc &L) {
+ CurDbgLocation = L;
+ }
+
+ /// \brief Get location information used by debugging information.
+ DebugLoc getCurrentDebugLocation() const { return CurDbgLocation; }
+
+ /// \brief If this builder has a current debug location, set it on the
+ /// specified instruction.
+ void SetInstDebugLocation(Instruction *I) const {
+ if (!CurDbgLocation.isUnknown())
+ I->setDebugLoc(CurDbgLocation);
+ }
+
+ /// \brief Get the return type of the current function that we're emitting
+ /// into.
+ Type *getCurrentFunctionReturnType() const;
+
+ /// InsertPoint - A saved insertion point.
+ class InsertPoint {
+ BasicBlock *Block;
+ BasicBlock::iterator Point;
+
+ public:
+ /// \brief Creates a new insertion point which doesn't point to anything.
+ InsertPoint() : Block(0) {}
+
+ /// \brief Creates a new insertion point at the given location.
+ InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
+ : Block(InsertBlock), Point(InsertPoint) {}
+
+ /// \brief Returns true if this insert point is set.
+ bool isSet() const { return (Block != 0); }
+
+ llvm::BasicBlock *getBlock() const { return Block; }
+ llvm::BasicBlock::iterator getPoint() const { return Point; }
+ };
+
+ /// \brief Returns the current insert point.
+ InsertPoint saveIP() const {
+ return InsertPoint(GetInsertBlock(), GetInsertPoint());
+ }
+
+ /// \brief Returns the current insert point, clearing it in the process.
+ InsertPoint saveAndClearIP() {
+ InsertPoint IP(GetInsertBlock(), GetInsertPoint());
+ ClearInsertionPoint();
+ return IP;
+ }
+
+ /// \brief Sets the current insert point to a previously-saved location.
+ void restoreIP(InsertPoint IP) {
+ if (IP.isSet())
+ SetInsertPoint(IP.getBlock(), IP.getPoint());
+ else
+ ClearInsertionPoint();
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Miscellaneous creation methods.
+ //===--------------------------------------------------------------------===//
+
+ /// \brief Make a new global variable with initializer type i8*
+ ///
+ /// Make a new global variable with an initializer that has array of i8 type
+ /// filled in with the null terminated string value specified. The new global
+ /// variable will be marked mergable with any others of the same contents. If
+ /// Name is specified, it is the name of the global variable created.
+ Value *CreateGlobalString(StringRef Str, const Twine &Name = "");
+
+ /// \brief Get a constant value representing either true or false.
+ ConstantInt *getInt1(bool V) {
+ return ConstantInt::get(getInt1Ty(), V);
+ }
+
+ /// \brief Get the constant value for i1 true.
+ ConstantInt *getTrue() {
+ return ConstantInt::getTrue(Context);
+ }
+
+ /// \brief Get the constant value for i1 false.
+ ConstantInt *getFalse() {
+ return ConstantInt::getFalse(Context);
+ }
+
+ /// \brief Get a constant 8-bit value.
+ ConstantInt *getInt8(uint8_t C) {
+ return ConstantInt::get(getInt8Ty(), C);
+ }
+
+ /// \brief Get a constant 16-bit value.
+ ConstantInt *getInt16(uint16_t C) {
+ return ConstantInt::get(getInt16Ty(), C);
+ }
+
+ /// \brief Get a constant 32-bit value.
+ ConstantInt *getInt32(uint32_t C) {
+ return ConstantInt::get(getInt32Ty(), C);
+ }
+
+ /// \brief Get a constant 64-bit value.
+ ConstantInt *getInt64(uint64_t C) {
+ return ConstantInt::get(getInt64Ty(), C);
+ }
+
+ /// \brief Get a constant integer value.
+ ConstantInt *getInt(const APInt &AI) {
+ return ConstantInt::get(Context, AI);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Type creation methods
+ //===--------------------------------------------------------------------===//
+
+ /// \brief Fetch the type representing a single bit
+ IntegerType *getInt1Ty() {
+ return Type::getInt1Ty(Context);
+ }
+
+ /// \brief Fetch the type representing an 8-bit integer.
+ IntegerType *getInt8Ty() {
+ return Type::getInt8Ty(Context);
+ }
+
+ /// \brief Fetch the type representing a 16-bit integer.
+ IntegerType *getInt16Ty() {
+ return Type::getInt16Ty(Context);
+ }
+
+ /// \brief Fetch the type representing a 32-bit integer.
+ IntegerType *getInt32Ty() {
+ return Type::getInt32Ty(Context);
+ }
+
+ /// \brief Fetch the type representing a 64-bit integer.
+ IntegerType *getInt64Ty() {
+ return Type::getInt64Ty(Context);
+ }
+
+ /// \brief Fetch the type representing a 32-bit floating point value.
+ Type *getFloatTy() {
+ return Type::getFloatTy(Context);
+ }
+
+ /// \brief Fetch the type representing a 64-bit floating point value.
+ Type *getDoubleTy() {
+ return Type::getDoubleTy(Context);
+ }
+
+ /// \brief Fetch the type representing void.
+ Type *getVoidTy() {
+ return Type::getVoidTy(Context);
+ }
+
+ /// \brief Fetch the type representing a pointer to an 8-bit integer value.
+ PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
+ return Type::getInt8PtrTy(Context, AddrSpace);
+ }
+
+ /// \brief Fetch the type representing a pointer to an integer value.
+ IntegerType* getIntPtrTy(DataLayout *DL, unsigned AddrSpace = 0) {
+ return DL->getIntPtrType(Context, AddrSpace);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Intrinsic creation methods
+ //===--------------------------------------------------------------------===//
+
+ /// \brief Create and insert a memset to the specified pointer and the
+ /// specified value.
+ ///
+ /// If the pointer isn't an i8*, it will be converted. If a TBAA tag is
+ /// specified, it will be added to the instruction.
+ CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0) {
+ return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile, TBAATag);
+ }
+
+ CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0);
+
+ /// \brief Create and insert a memcpy between the specified pointers.
+ ///
+ /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
+ /// specified, it will be added to the instruction.
+ CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0,
+ MDNode *TBAAStructTag = 0) {
+ return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
+ TBAAStructTag);
+ }
+
+ CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0,
+ MDNode *TBAAStructTag = 0);
+
+ /// \brief Create and insert a memmove between the specified
+ /// pointers.
+ ///
+ /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
+ /// specified, it will be added to the instruction.
+ CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0) {
+ return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
+ }
+
+ CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
+ bool isVolatile = false, MDNode *TBAATag = 0);
+
+ /// \brief Create a lifetime.start intrinsic.
+ ///
+ /// If the pointer isn't i8* it will be converted.
+ CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = 0);
+
+ /// \brief Create a lifetime.end intrinsic.
+ ///
+ /// If the pointer isn't i8* it will be converted.
+ CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = 0);
+
+private:
+ Value *getCastedInt8PtrValue(Value *Ptr);
+};
+
+/// \brief This provides a uniform API for creating instructions and inserting
+/// them into a basic block: either at the end of a BasicBlock, or at a specific
+/// iterator location in a block.
+///
+/// Note that the builder does not expose the full generality of LLVM
+/// instructions. For access to extra instruction properties, use the mutators
+/// (e.g. setVolatile) on the instructions after they have been
+/// created. Convenience state exists to specify fast-math flags and fp-math
+/// tags.
+///
+/// The first template argument handles whether or not to preserve names in the
+/// final instruction output. This defaults to on. The second template argument
+/// specifies a class to use for creating constants. This defaults to creating
+/// minimally folded constants. The fourth template argument allows clients to
+/// specify custom insertion hooks that are called on every newly created
+/// insertion.
+template<bool preserveNames = true, typename T = ConstantFolder,
+ typename Inserter = IRBuilderDefaultInserter<preserveNames> >
+class IRBuilder : public IRBuilderBase, public Inserter {
+ T Folder;
+ MDNode *DefaultFPMathTag;
+ FastMathFlags FMF;
+public:
+ IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter(),
+ MDNode *FPMathTag = 0)
+ : IRBuilderBase(C), Inserter(I), Folder(F), DefaultFPMathTag(FPMathTag),
+ FMF() {
+ }
+
+ explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = 0)
+ : IRBuilderBase(C), Folder(), DefaultFPMathTag(FPMathTag), FMF() {
+ }
+
+ explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = 0)
+ : IRBuilderBase(TheBB->getContext()), Folder(F),
+ DefaultFPMathTag(FPMathTag), FMF() {
+ SetInsertPoint(TheBB);
+ }
+
+ explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = 0)
+ : IRBuilderBase(TheBB->getContext()), Folder(),
+ DefaultFPMathTag(FPMathTag), FMF() {
+ SetInsertPoint(TheBB);
+ }
+
+ explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = 0)
+ : IRBuilderBase(IP->getContext()), Folder(), DefaultFPMathTag(FPMathTag),
+ FMF() {
+ SetInsertPoint(IP);
+ SetCurrentDebugLocation(IP->getDebugLoc());
+ }
+
+ explicit IRBuilder(Use &U, MDNode *FPMathTag = 0)
+ : IRBuilderBase(U->getContext()), Folder(), DefaultFPMathTag(FPMathTag),
+ FMF() {
+ SetInsertPoint(U);
+ SetCurrentDebugLocation(cast<Instruction>(U.getUser())->getDebugLoc());
+ }
+
+ IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F,
+ MDNode *FPMathTag = 0)
+ : IRBuilderBase(TheBB->getContext()), Folder(F),
+ DefaultFPMathTag(FPMathTag), FMF() {
+ SetInsertPoint(TheBB, IP);
+ }
+
+ IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, MDNode *FPMathTag = 0)
+ : IRBuilderBase(TheBB->getContext()), Folder(),
+ DefaultFPMathTag(FPMathTag), FMF() {
+ SetInsertPoint(TheBB, IP);
+ }
+
+ /// \brief Get the constant folder being used.
+ const T &getFolder() { return Folder; }
+
+ /// \brief Get the floating point math metadata being used.
+ MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
+
+ /// \brief Get the flags to be applied to created floating point ops
+ FastMathFlags getFastMathFlags() const { return FMF; }
+
+ /// \brief Clear the fast-math flags.
+ void clearFastMathFlags() { FMF.clear(); }
+
+ /// \brief SetDefaultFPMathTag - Set the floating point math metadata to be used.
+ void SetDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
+
+ /// \brief Set the fast-math flags to be used with generated fp-math operators
+ void SetFastMathFlags(FastMathFlags NewFMF) { FMF = NewFMF; }
+
+ /// \brief Return true if this builder is configured to actually add the
+ /// requested names to IR created through it.
+ bool isNamePreserving() const { return preserveNames; }
+
+ /// \brief Insert and return the specified instruction.
+ template<typename InstTy>
+ InstTy *Insert(InstTy *I, const Twine &Name = "") const {
+ this->InsertHelper(I, Name, BB, InsertPt);
+ this->SetInstDebugLocation(I);
+ return I;
+ }
+
+ /// \brief No-op overload to handle constants.
+ Constant *Insert(Constant *C, const Twine& = "") const {
+ return C;
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Terminators
+ //===--------------------------------------------------------------------===//
+
+private:
+ /// \brief Helper to add branch weight metadata onto an instruction.
+ /// \returns The annotated instruction.
+ template <typename InstTy>
+ InstTy *addBranchWeights(InstTy *I, MDNode *Weights) {
+ if (Weights)
+ I->setMetadata(LLVMContext::MD_prof, Weights);
+ return I;
+ }
+
+public:
+ /// \brief Create a 'ret void' instruction.
+ ReturnInst *CreateRetVoid() {
+ return Insert(ReturnInst::Create(Context));
+ }
+
+ /// \brief Create a 'ret <val>' instruction.
+ ReturnInst *CreateRet(Value *V) {
+ return Insert(ReturnInst::Create(Context, V));
+ }
+
+ /// \brief Create a sequence of N insertvalue instructions,
+ /// with one Value from the retVals array each, that build a aggregate
+ /// return value one value at a time, and a ret instruction to return
+ /// the resulting aggregate value.
+ ///
+ /// This is a convenience function for code that uses aggregate return values
+ /// as a vehicle for having multiple return values.
+ ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
+ Value *V = UndefValue::get(getCurrentFunctionReturnType());
+ for (unsigned i = 0; i != N; ++i)
+ V = CreateInsertValue(V, retVals[i], i, "mrv");
+ return Insert(ReturnInst::Create(Context, V));
+ }
+
+ /// \brief Create an unconditional 'br label X' instruction.
+ BranchInst *CreateBr(BasicBlock *Dest) {
+ return Insert(BranchInst::Create(Dest));
+ }
+
+ /// \brief Create a conditional 'br Cond, TrueDest, FalseDest'
+ /// instruction.
+ BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
+ MDNode *BranchWeights = 0) {
+ return Insert(addBranchWeights(BranchInst::Create(True, False, Cond),
+ BranchWeights));
+ }
+
+ /// \brief Create a switch instruction with the specified value, default dest,
+ /// and with a hint for the number of cases that will be added (for efficient
+ /// allocation).
+ SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10,
+ MDNode *BranchWeights = 0) {
+ return Insert(addBranchWeights(SwitchInst::Create(V, Dest, NumCases),
+ BranchWeights));
+ }
+
+ /// \brief Create an indirect branch instruction with the specified address
+ /// operand, with an optional hint for the number of destinations that will be
+ /// added (for efficient allocation).
+ IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
+ return Insert(IndirectBrInst::Create(Addr, NumDests));
+ }
+
+ InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
+ BasicBlock *UnwindDest, const Twine &Name = "") {
+ return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
+ ArrayRef<Value *>()),
+ Name);
+ }
+ InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
+ BasicBlock *UnwindDest, Value *Arg1,
+ const Twine &Name = "") {
+ return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Arg1),
+ Name);
+ }
+ InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
+ BasicBlock *UnwindDest, Value *Arg1,
+ Value *Arg2, Value *Arg3,
+ const Twine &Name = "") {
+ Value *Args[] = { Arg1, Arg2, Arg3 };
+ return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
+ Name);
+ }
+ /// \brief Create an invoke instruction.
+ InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
+ BasicBlock *UnwindDest, ArrayRef<Value *> Args,
+ const Twine &Name = "") {
+ return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
+ Name);
+ }
+
+ ResumeInst *CreateResume(Value *Exn) {
+ return Insert(ResumeInst::Create(Exn));
+ }
+
+ UnreachableInst *CreateUnreachable() {
+ return Insert(new UnreachableInst(Context));
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Binary Operators
+ //===--------------------------------------------------------------------===//
+private:
+ BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
+ Value *LHS, Value *RHS,
+ const Twine &Name,
+ bool HasNUW, bool HasNSW) {
+ BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
+ if (HasNUW) BO->setHasNoUnsignedWrap();
+ if (HasNSW) BO->setHasNoSignedWrap();
+ return BO;
+ }
+
+ Instruction *AddFPMathAttributes(Instruction *I,
+ MDNode *FPMathTag,
+ FastMathFlags FMF) const {
+ if (!FPMathTag)
+ FPMathTag = DefaultFPMathTag;
+ if (FPMathTag)
+ I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
+ I->setFastMathFlags(FMF);
+ return I;
+ }
+public:
+ Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
+ return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
+ HasNUW, HasNSW);
+ }
+ Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateAdd(LHS, RHS, Name, false, true);
+ }
+ Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateAdd(LHS, RHS, Name, true, false);
+ }
+ Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
+ MDNode *FPMathTag = 0) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFAdd(LC, RC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFAdd(LHS, RHS),
+ FPMathTag, FMF), Name);
+ }
+ Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateSub(LC, RC), Name);
+ return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
+ HasNUW, HasNSW);
+ }
+ Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateSub(LHS, RHS, Name, false, true);
+ }
+ Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateSub(LHS, RHS, Name, true, false);
+ }
+ Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
+ MDNode *FPMathTag = 0) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFSub(LC, RC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFSub(LHS, RHS),
+ FPMathTag, FMF), Name);
+ }
+ Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateMul(LC, RC), Name);
+ return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
+ HasNUW, HasNSW);
+ }
+ Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateMul(LHS, RHS, Name, false, true);
+ }
+ Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateMul(LHS, RHS, Name, true, false);
+ }
+ Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "",
+ MDNode *FPMathTag = 0) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFMul(LC, RC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFMul(LHS, RHS),
+ FPMathTag, FMF), Name);
+ }
+ Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool isExact = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
+ if (!isExact)
+ return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
+ return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
+ }
+ Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateUDiv(LHS, RHS, Name, true);
+ }
+ Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool isExact = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
+ if (!isExact)
+ return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
+ return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
+ }
+ Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateSDiv(LHS, RHS, Name, true);
+ }
+ Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
+ MDNode *FPMathTag = 0) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFDiv(LC, RC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFDiv(LHS, RHS),
+ FPMathTag, FMF), Name);
+ }
+ Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateURem(LC, RC), Name);
+ return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
+ }
+ Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateSRem(LC, RC), Name);
+ return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
+ }
+ Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
+ MDNode *FPMathTag = 0) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFRem(LC, RC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFRem(LHS, RHS),
+ FPMathTag, FMF), Name);
+ }
+
+ Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
+ return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
+ HasNUW, HasNSW);
+ }
+ Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
+ HasNUW, HasNSW);
+ }
+ Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
+ HasNUW, HasNSW);
+ }
+
+ Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool isExact = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
+ if (!isExact)
+ return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
+ return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
+ }
+ Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
+ bool isExact = false) {
+ return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
+ }
+ Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
+ bool isExact = false) {
+ return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
+ }
+
+ Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
+ bool isExact = false) {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
+ if (!isExact)
+ return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
+ return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
+ }
+ Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
+ bool isExact = false) {
+ return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
+ }
+ Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
+ bool isExact = false) {
+ return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
+ }
+
+ Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *RC = dyn_cast<Constant>(RHS)) {
+ if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
+ return LHS; // LHS & -1 -> LHS
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ return Insert(Folder.CreateAnd(LC, RC), Name);
+ }
+ return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
+ }
+ Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
+ return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+ Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+ return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+
+ Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *RC = dyn_cast<Constant>(RHS)) {
+ if (RC->isNullValue())
+ return LHS; // LHS | 0 -> LHS
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ return Insert(Folder.CreateOr(LC, RC), Name);
+ }
+ return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
+ }
+ Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
+ return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+ Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+ return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+
+ Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateXor(LC, RC), Name);
+ return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
+ }
+ Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
+ return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+ Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+ return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
+ }
+
+ Value *CreateBinOp(Instruction::BinaryOps Opc,
+ Value *LHS, Value *RHS, const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
+ return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
+ }
+
+ Value *CreateNeg(Value *V, const Twine &Name = "",
+ bool HasNUW = false, bool HasNSW = false) {
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
+ BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
+ if (HasNUW) BO->setHasNoUnsignedWrap();
+ if (HasNSW) BO->setHasNoSignedWrap();
+ return BO;
+ }
+ Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
+ return CreateNeg(V, Name, false, true);
+ }
+ Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
+ return CreateNeg(V, Name, true, false);
+ }
+ Value *CreateFNeg(Value *V, const Twine &Name = "", MDNode *FPMathTag = 0) {
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateFNeg(VC), Name);
+ return Insert(AddFPMathAttributes(BinaryOperator::CreateFNeg(V),
+ FPMathTag, FMF), Name);
+ }
+ Value *CreateNot(Value *V, const Twine &Name = "") {
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateNot(VC), Name);
+ return Insert(BinaryOperator::CreateNot(V), Name);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Memory Instructions
+ //===--------------------------------------------------------------------===//
+
+ AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = 0,
+ const Twine &Name = "") {
+ return Insert(new AllocaInst(Ty, ArraySize), Name);
+ }
+ // \brief Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
+ // converting the string to 'bool' for the isVolatile parameter.
+ LoadInst *CreateLoad(Value *Ptr, const char *Name) {
+ return Insert(new LoadInst(Ptr), Name);
+ }
+ LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
+ return Insert(new LoadInst(Ptr), Name);
+ }
+ LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
+ return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
+ }
+ StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
+ return Insert(new StoreInst(Val, Ptr, isVolatile));
+ }
+ // \brief Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")'
+ // correctly, instead of converting the string to 'bool' for the isVolatile
+ // parameter.
+ LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
+ LoadInst *LI = CreateLoad(Ptr, Name);
+ LI->setAlignment(Align);
+ return LI;
+ }
+ LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
+ const Twine &Name = "") {
+ LoadInst *LI = CreateLoad(Ptr, Name);
+ LI->setAlignment(Align);
+ return LI;
+ }
+ LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
+ const Twine &Name = "") {
+ LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
+ LI->setAlignment(Align);
+ return LI;
+ }
+ StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
+ bool isVolatile = false) {
+ StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
+ SI->setAlignment(Align);
+ return SI;
+ }
+ FenceInst *CreateFence(AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread) {
+ return Insert(new FenceInst(Context, Ordering, SynchScope));
+ }
+ AtomicCmpXchgInst *CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
+ AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread) {
+ return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, SynchScope));
+ }
+ AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
+ AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread) {
+ return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
+ }
+ Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
+ const Twine &Name = "") {
+ if (Constant *PC = dyn_cast<Constant>(Ptr)) {
+ // Every index must be constant.
+ size_t i, e;
+ for (i = 0, e = IdxList.size(); i != e; ++i)
+ if (!isa<Constant>(IdxList[i]))
+ break;
+ if (i == e)
+ return Insert(Folder.CreateGetElementPtr(PC, IdxList), Name);
+ }
+ return Insert(GetElementPtrInst::Create(Ptr, IdxList), Name);
+ }
+ Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
+ const Twine &Name = "") {
+ if (Constant *PC = dyn_cast<Constant>(Ptr)) {
+ // Every index must be constant.
+ size_t i, e;
+ for (i = 0, e = IdxList.size(); i != e; ++i)
+ if (!isa<Constant>(IdxList[i]))
+ break;
+ if (i == e)
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, IdxList), Name);
+ }
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxList), Name);
+ }
+ Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ if (Constant *IC = dyn_cast<Constant>(Idx))
+ return Insert(Folder.CreateGetElementPtr(PC, IC), Name);
+ return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
+ }
+ Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ if (Constant *IC = dyn_cast<Constant>(Idx))
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, IC), Name);
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
+ }
+ Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
+ Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
+
+ return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
+ }
+ Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
+ const Twine &Name = "") {
+ Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
+
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
+ }
+ Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
+ const Twine &Name = "") {
+ Value *Idxs[] = {
+ ConstantInt::get(Type::getInt32Ty(Context), Idx0),
+ ConstantInt::get(Type::getInt32Ty(Context), Idx1)
+ };
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
+
+ return Insert(GetElementPtrInst::Create(Ptr, Idxs), Name);
+ }
+ Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
+ const Twine &Name = "") {
+ Value *Idxs[] = {
+ ConstantInt::get(Type::getInt32Ty(Context), Idx0),
+ ConstantInt::get(Type::getInt32Ty(Context), Idx1)
+ };
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
+
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), Name);
+ }
+ Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
+ Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
+
+ return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
+ }
+ Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
+ const Twine &Name = "") {
+ Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
+
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
+ }
+ Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
+ const Twine &Name = "") {
+ Value *Idxs[] = {
+ ConstantInt::get(Type::getInt64Ty(Context), Idx0),
+ ConstantInt::get(Type::getInt64Ty(Context), Idx1)
+ };
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
+
+ return Insert(GetElementPtrInst::Create(Ptr, Idxs), Name);
+ }
+ Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
+ const Twine &Name = "") {
+ Value *Idxs[] = {
+ ConstantInt::get(Type::getInt64Ty(Context), Idx0),
+ ConstantInt::get(Type::getInt64Ty(Context), Idx1)
+ };
+
+ if (Constant *PC = dyn_cast<Constant>(Ptr))
+ return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
+
+ return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), Name);
+ }
+ Value *CreateStructGEP(Value *Ptr, unsigned Idx, const Twine &Name = "") {
+ return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
+ }
+
+ /// \brief Same as CreateGlobalString, but return a pointer with "i8*" type
+ /// instead of a pointer to array of i8.
+ Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "") {
+ Value *gv = CreateGlobalString(Str, Name);
+ Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
+ Value *Args[] = { zero, zero };
+ return CreateInBoundsGEP(gv, Args, Name);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Cast/Conversion Operators
+ //===--------------------------------------------------------------------===//
+
+ Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
+ return CreateCast(Instruction::Trunc, V, DestTy, Name);
+ }
+ Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
+ return CreateCast(Instruction::ZExt, V, DestTy, Name);
+ }
+ Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
+ return CreateCast(Instruction::SExt, V, DestTy, Name);
+ }
+ /// \brief Create a ZExt or Trunc from the integer value V to DestTy. Return
+ /// the value untouched if the type of V is already DestTy.
+ Value *CreateZExtOrTrunc(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ assert(V->getType()->isIntOrIntVectorTy() &&
+ DestTy->isIntOrIntVectorTy() &&
+ "Can only zero extend/truncate integers!");
+ Type *VTy = V->getType();
+ if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
+ return CreateZExt(V, DestTy, Name);
+ if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
+ return CreateTrunc(V, DestTy, Name);
+ return V;
+ }
+ /// \brief Create a SExt or Trunc from the integer value V to DestTy. Return
+ /// the value untouched if the type of V is already DestTy.
+ Value *CreateSExtOrTrunc(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ assert(V->getType()->isIntOrIntVectorTy() &&
+ DestTy->isIntOrIntVectorTy() &&
+ "Can only sign extend/truncate integers!");
+ Type *VTy = V->getType();
+ if (VTy->getScalarSizeInBits() < DestTy->getScalarSizeInBits())
+ return CreateSExt(V, DestTy, Name);
+ if (VTy->getScalarSizeInBits() > DestTy->getScalarSizeInBits())
+ return CreateTrunc(V, DestTy, Name);
+ return V;
+ }
+ Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
+ return CreateCast(Instruction::FPToUI, V, DestTy, Name);
+ }
+ Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
+ return CreateCast(Instruction::FPToSI, V, DestTy, Name);
+ }
+ Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
+ return CreateCast(Instruction::UIToFP, V, DestTy, Name);
+ }
+ Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
+ return CreateCast(Instruction::SIToFP, V, DestTy, Name);
+ }
+ Value *CreateFPTrunc(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
+ }
+ Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
+ return CreateCast(Instruction::FPExt, V, DestTy, Name);
+ }
+ Value *CreatePtrToInt(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
+ }
+ Value *CreateIntToPtr(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
+ }
+ Value *CreateBitCast(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ return CreateCast(Instruction::BitCast, V, DestTy, Name);
+ }
+ Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
+ return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
+ }
+ Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
+ return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
+ }
+ Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
+ return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
+ }
+ Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
+ return Insert(CastInst::Create(Op, V, DestTy), Name);
+ }
+ Value *CreatePointerCast(Value *V, Type *DestTy,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
+ return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
+ }
+ Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
+ const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
+ return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
+ }
+private:
+ // \brief Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a
+ // compile time error, instead of converting the string to bool for the
+ // isSigned parameter.
+ Value *CreateIntCast(Value *, Type *, const char *) LLVM_DELETED_FUNCTION;
+public:
+ Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
+ if (V->getType() == DestTy)
+ return V;
+ if (Constant *VC = dyn_cast<Constant>(V))
+ return Insert(Folder.CreateFPCast(VC, DestTy), Name);
+ return Insert(CastInst::CreateFPCast(V, DestTy), Name);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Compare Instructions
+ //===--------------------------------------------------------------------===//
+
+ Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
+ }
+ Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
+ }
+ Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
+ }
+ Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
+ }
+ Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
+ }
+ Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
+ }
+ Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
+ }
+ Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
+ }
+ Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
+ }
+ Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
+ }
+
+ Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
+ }
+ Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
+ }
+ Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
+ }
+ Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
+ }
+ Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
+ }
+ Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
+ }
+ Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
+ }
+ Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
+ }
+ Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
+ }
+ Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
+ }
+ Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
+ }
+ Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
+ }
+ Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
+ }
+ Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "") {
+ return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
+ }
+
+ Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
+ const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateICmp(P, LC, RC), Name);
+ return Insert(new ICmpInst(P, LHS, RHS), Name);
+ }
+ Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
+ const Twine &Name = "") {
+ if (Constant *LC = dyn_cast<Constant>(LHS))
+ if (Constant *RC = dyn_cast<Constant>(RHS))
+ return Insert(Folder.CreateFCmp(P, LC, RC), Name);
+ return Insert(new FCmpInst(P, LHS, RHS), Name);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Instruction creation methods: Other Instructions
+ //===--------------------------------------------------------------------===//
+
+ PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
+ const Twine &Name = "") {
+ return Insert(PHINode::Create(Ty, NumReservedValues), Name);
+ }
+
+ CallInst *CreateCall(Value *Callee, const Twine &Name = "") {
+ return Insert(CallInst::Create(Callee), Name);
+ }
+ CallInst *CreateCall(Value *Callee, Value *Arg, const Twine &Name = "") {
+ return Insert(CallInst::Create(Callee, Arg), Name);
+ }
+ CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
+ const Twine &Name = "") {
+ Value *Args[] = { Arg1, Arg2 };
+ return Insert(CallInst::Create(Callee, Args), Name);
+ }
+ CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
+ const Twine &Name = "") {
+ Value *Args[] = { Arg1, Arg2, Arg3 };
+ return Insert(CallInst::Create(Callee, Args), Name);
+ }
+ CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
+ Value *Arg4, const Twine &Name = "") {
+ Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
+ return Insert(CallInst::Create(Callee, Args), Name);
+ }
+ CallInst *CreateCall5(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
+ Value *Arg4, Value *Arg5, const Twine &Name = "") {
+ Value *Args[] = { Arg1, Arg2, Arg3, Arg4, Arg5 };
+ return Insert(CallInst::Create(Callee, Args), Name);
+ }
+
+ CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
+ const Twine &Name = "") {
+ return Insert(CallInst::Create(Callee, Args), Name);
+ }
+
+ Value *CreateSelect(Value *C, Value *True, Value *False,
+ const Twine &Name = "") {
+ if (Constant *CC = dyn_cast<Constant>(C))
+ if (Constant *TC = dyn_cast<Constant>(True))
+ if (Constant *FC = dyn_cast<Constant>(False))
+ return Insert(Folder.CreateSelect(CC, TC, FC), Name);
+ return Insert(SelectInst::Create(C, True, False), Name);
+ }
+
+ VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
+ return Insert(new VAArgInst(List, Ty), Name);
+ }
+
+ Value *CreateExtractElement(Value *Vec, Value *Idx,
+ const Twine &Name = "") {
+ if (Constant *VC = dyn_cast<Constant>(Vec))
+ if (Constant *IC = dyn_cast<Constant>(Idx))
+ return Insert(Folder.CreateExtractElement(VC, IC), Name);
+ return Insert(ExtractElementInst::Create(Vec, Idx), Name);
+ }
+
+ Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
+ const Twine &Name = "") {
+ if (Constant *VC = dyn_cast<Constant>(Vec))
+ if (Constant *NC = dyn_cast<Constant>(NewElt))
+ if (Constant *IC = dyn_cast<Constant>(Idx))
+ return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
+ return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
+ }
+
+ Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
+ const Twine &Name = "") {
+ if (Constant *V1C = dyn_cast<Constant>(V1))
+ if (Constant *V2C = dyn_cast<Constant>(V2))
+ if (Constant *MC = dyn_cast<Constant>(Mask))
+ return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
+ return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
+ }
+
+ Value *CreateExtractValue(Value *Agg,
+ ArrayRef<unsigned> Idxs,
+ const Twine &Name = "") {
+ if (Constant *AggC = dyn_cast<Constant>(Agg))
+ return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
+ return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
+ }
+
+ Value *CreateInsertValue(Value *Agg, Value *Val,
+ ArrayRef<unsigned> Idxs,
+ const Twine &Name = "") {
+ if (Constant *AggC = dyn_cast<Constant>(Agg))
+ if (Constant *ValC = dyn_cast<Constant>(Val))
+ return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
+ return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
+ }
+
+ LandingPadInst *CreateLandingPad(Type *Ty, Value *PersFn, unsigned NumClauses,
+ const Twine &Name = "") {
+ return Insert(LandingPadInst::Create(Ty, PersFn, NumClauses), Name);
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Utility creation methods
+ //===--------------------------------------------------------------------===//
+
+ /// \brief Return an i1 value testing if \p Arg is null.
+ Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
+ return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
+ Name);
+ }
+
+ /// \brief Return an i1 value testing if \p Arg is not null.
+ Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
+ return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
+ Name);
+ }
+
+ /// \brief Return the i64 difference between two pointer values, dividing out
+ /// the size of the pointed-to objects.
+ ///
+ /// This is intended to implement C-style pointer subtraction. As such, the
+ /// pointers must be appropriately aligned for their element types and
+ /// pointing into the same object.
+ Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
+ assert(LHS->getType() == RHS->getType() &&
+ "Pointer subtraction operand types must match!");
+ PointerType *ArgType = cast<PointerType>(LHS->getType());
+ Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
+ Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
+ Value *Difference = CreateSub(LHS_int, RHS_int);
+ return CreateExactSDiv(Difference,
+ ConstantExpr::getSizeOf(ArgType->getElementType()),
+ Name);
+ }
+
+ /// \brief Return a vector value that contains \arg V broadcasted to \p
+ /// NumElts elements.
+ Value *CreateVectorSplat(unsigned NumElts, Value *V, const Twine &Name = "") {
+ assert(NumElts > 0 && "Cannot splat to an empty vector!");
+
+ // First insert it into an undef vector so we can shuffle it.
+ Type *I32Ty = getInt32Ty();
+ Value *Undef = UndefValue::get(VectorType::get(V->getType(), NumElts));
+ V = CreateInsertElement(Undef, V, ConstantInt::get(I32Ty, 0),
+ Name + ".splatinsert");
+
+ // Shuffle the value across the desired number of elements.
+ Value *Zeros = ConstantAggregateZero::get(VectorType::get(I32Ty, NumElts));
+ return CreateShuffleVector(V, Undef, Zeros, Name + ".splat");
+ }
+};
+
+}
+
+#endif
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