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llvm-6502/include/llvm/IR/IRBuilder.h
Ramkumar Ramachandra e10581ac39 PlaceSafepoints: use IRBuilder helpers 
Use the IRBuilder helpers for gc.statepoint and gc.result, instead of
coding the construction by hand. Note that the gc.statepoint IRBuilder
handles only CallInst, not InvokeInst; retain that part of hand-coding.

Differential Revision: http://reviews.llvm.org/D7518

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230591 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 00:35:56 +00:00

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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/ConstantFolder.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/CBindingWrapping.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;
MDNode *DefaultFPMathTag;
FastMathFlags FMF;
public:
IRBuilderBase(LLVMContext &context, MDNode *FPMathTag = nullptr)
: Context(context), DefaultFPMathTag(FPMathTag), FMF() {
ClearInsertionPoint();
}
//===--------------------------------------------------------------------===//
// Builder configuration methods
//===--------------------------------------------------------------------===//
/// \brief Clear the insertion point: created instructions will not be
/// inserted into a block.
void ClearInsertionPoint() {
BB = nullptr;
InsertPt = nullptr;
}
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;
assert(I != BB->end() && "Can't read debug loc from end()");
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(DebugLoc L) { CurDbgLocation = std::move(L); }
/// \brief Get location information used by debugging information.
const 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(nullptr) {}
/// \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 != nullptr); }
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();
}
/// \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 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; }
//===--------------------------------------------------------------------===//
// RAII helpers.
//===--------------------------------------------------------------------===//
// \brief RAII object that stores the current insertion point and restores it
// when the object is destroyed. This includes the debug location.
class InsertPointGuard {
IRBuilderBase &Builder;
AssertingVH<BasicBlock> Block;
BasicBlock::iterator Point;
DebugLoc DbgLoc;
InsertPointGuard(const InsertPointGuard &) = delete;
InsertPointGuard &operator=(const InsertPointGuard &) = delete;
public:
InsertPointGuard(IRBuilderBase &B)
: Builder(B), Block(B.GetInsertBlock()), Point(B.GetInsertPoint()),
DbgLoc(B.getCurrentDebugLocation()) {}
~InsertPointGuard() {
Builder.restoreIP(InsertPoint(Block, Point));
Builder.SetCurrentDebugLocation(DbgLoc);
}
};
// \brief RAII object that stores the current fast math settings and restores
// them when the object is destroyed.
class FastMathFlagGuard {
IRBuilderBase &Builder;
FastMathFlags FMF;
MDNode *FPMathTag;
FastMathFlagGuard(const FastMathFlagGuard &) = delete;
FastMathFlagGuard &operator=(
const FastMathFlagGuard &) = delete;
public:
FastMathFlagGuard(IRBuilderBase &B)
: Builder(B), FMF(B.FMF), FPMathTag(B.DefaultFPMathTag) {}
~FastMathFlagGuard() {
Builder.FMF = FMF;
Builder.DefaultFPMathTag = FPMathTag;
}
};
//===--------------------------------------------------------------------===//
// 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 N-bit value, zero extended or truncated from
/// a 64-bit value.
ConstantInt *getIntN(unsigned N, uint64_t C) {
return ConstantInt::get(getIntNTy(N), 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 an N-bit integer.
IntegerType *getIntNTy(unsigned N) {
return Type::getIntNTy(Context, N);
}
/// \brief Fetch the type representing a 16-bit floating point value.
Type *getHalfTy() {
return Type::getHalfTy(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(const 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. Likewise with alias.scope
/// and noalias tags.
CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr) {
return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile,
TBAATag, ScopeTag, NoAliasTag);
}
CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr);
/// \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. Likewise with alias.scope
/// and noalias tags.
CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *TBAAStructTag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr) {
return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
TBAAStructTag, ScopeTag, NoAliasTag);
}
CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *TBAAStructTag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr);
/// \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. Likewise with alias.scope
/// and noalias tags.
CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr) {
return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile,
TBAATag, ScopeTag, NoAliasTag);
}
CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = nullptr,
MDNode *ScopeTag = nullptr,
MDNode *NoAliasTag = nullptr);
/// \brief Create a lifetime.start intrinsic.
///
/// If the pointer isn't i8* it will be converted.
CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = nullptr);
/// \brief Create a lifetime.end intrinsic.
///
/// If the pointer isn't i8* it will be converted.
CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
/// \brief Create a call to Masked Load intrinsic
CallInst *CreateMaskedLoad(Value *Ptr, unsigned Align, Value *Mask,
Value *PassThru = 0, const Twine &Name = "");
/// \brief Create a call to Masked Store intrinsic
CallInst *CreateMaskedStore(Value *Val, Value *Ptr, unsigned Align,
Value *Mask);
/// \brief Create an assume intrinsic call that allows the optimizer to
/// assume that the provided condition will be true.
CallInst *CreateAssumption(Value *Cond);
/// \brief Create a call to the experimental.gc.statepoint intrinsic to
/// start a new statepoint sequence.
CallInst *CreateGCStatepoint(Value *ActualCallee,
ArrayRef<Value *> CallArgs,
ArrayRef<Value *> DeoptArgs,
ArrayRef<Value *> GCArgs,
const Twine &Name = "");
// Conveninence function for the common case when CallArgs are filled in using
// makeArrayRef(CS.arg_begin(), .arg_end()); Use needs to be .get()'ed to get
// the Value *.
CallInst *CreateGCStatepoint(Value *ActualCallee, ArrayRef<Use> CallArgs,
ArrayRef<Value *> DeoptArgs,
ArrayRef<Value *> GCArgs,
const Twine &Name = "");
/// \brief Create a call to the experimental.gc.result intrinsic to extract
/// the result from a call wrapped in a statepoint.
CallInst *CreateGCResult(Instruction *Statepoint,
Type *ResultType,
const Twine &Name = "");
/// \brief Create a call to the experimental.gc.relocate intrinsics to
/// project the relocated value of one pointer from the statepoint.
CallInst *CreateGCRelocate(Instruction *Statepoint,
int BaseOffset,
int DerivedOffset,
Type *ResultType,
const Twine &Name = "");
private:
/// \brief Create a call to a masked intrinsic with given Id.
/// Masked intrinsic has only one overloaded type - data type.
CallInst *CreateMaskedIntrinsic(unsigned Id, ArrayRef<Value *> Ops,
Type *DataTy, const Twine &Name = "");
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 third 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;
public:
IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter(),
MDNode *FPMathTag = nullptr)
: IRBuilderBase(C, FPMathTag), Inserter(I), Folder(F) {
}
explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = nullptr)
: IRBuilderBase(C, FPMathTag), Folder() {
}
explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = nullptr)
: IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
SetInsertPoint(TheBB);
}
explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = nullptr)
: IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
SetInsertPoint(TheBB);
}
explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = nullptr)
: IRBuilderBase(IP->getContext(), FPMathTag), Folder() {
SetInsertPoint(IP);
SetCurrentDebugLocation(IP->getDebugLoc());
}
explicit IRBuilder(Use &U, MDNode *FPMathTag = nullptr)
: IRBuilderBase(U->getContext(), FPMathTag), Folder() {
SetInsertPoint(U);
SetCurrentDebugLocation(cast<Instruction>(U.getUser())->getDebugLoc());
}
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F,
MDNode *FPMathTag = nullptr)
: IRBuilderBase(TheBB->getContext(), FPMathTag), Folder(F) {
SetInsertPoint(TheBB, IP);
}
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP,
MDNode *FPMathTag = nullptr)
: IRBuilderBase(TheBB->getContext(), FPMathTag), Folder() {
SetInsertPoint(TheBB, IP);
}
/// \brief Get the constant folder being used.
const T &getFolder() { return Folder; }
/// \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 = nullptr) {
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 = nullptr) {
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, None),
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 = nullptr) {
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, HasNUW, HasNSW), 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 = nullptr) {
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, HasNUW, HasNSW), 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 = nullptr) {
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 = nullptr) {
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 = nullptr) {
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 = "",
MDNode *FPMathTag = nullptr) {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
llvm::Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
if (isa<FPMathOperator>(BinOp))
BinOp = AddFPMathAttributes(BinOp, FPMathTag, FMF);
return Insert(BinOp, 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 = nullptr) {
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 = nullptr,
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, nullptr, 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,
const Twine &Name = "") {
return Insert(new FenceInst(Context, Ordering, SynchScope), Name);
}
AtomicCmpXchgInst *
CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
AtomicOrdering SuccessOrdering,
AtomicOrdering FailureOrdering,
SynchronizationScope SynchScope = CrossThread) {
return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering,
FailureOrdering, 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 *CreateAddrSpaceCast(Value *V, Type *DestTy,
const Twine &Name = "") {
return CreateCast(Instruction::AddrSpaceCast, 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 *CreatePointerBitCastOrAddrSpaceCast(Value *V, Type *DestTy,
const Twine &Name = "") {
if (V->getType() == DestTy)
return V;
if (Constant *VC = dyn_cast<Constant>(V)) {
return Insert(Folder.CreatePointerBitCastOrAddrSpaceCast(VC, DestTy),
Name);
}
return Insert(CastInst::CreatePointerBitCastOrAddrSpaceCast(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);
}
Value *CreateBitOrPointerCast(Value *V, Type *DestTy,
const Twine &Name = "") {
if (V->getType() == DestTy)
return V;
if (V->getType()->isPointerTy() && DestTy->isIntegerTy())
return CreatePtrToInt(V, DestTy, Name);
if (V->getType()->isIntegerTy() && DestTy->isPointerTy())
return CreateIntToPtr(V, DestTy, Name);
return CreateBitCast(V, DestTy, 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 *) = delete;
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");
}
/// \brief Return a value that has been extracted from a larger integer type.
Value *CreateExtractInteger(const DataLayout &DL, Value *From,
IntegerType *ExtractedTy, uint64_t Offset,
const Twine &Name) {
IntegerType *IntTy = cast<IntegerType>(From->getType());
assert(DL.getTypeStoreSize(ExtractedTy) + Offset <=
DL.getTypeStoreSize(IntTy) &&
"Element extends past full value");
uint64_t ShAmt = 8 * Offset;
Value *V = From;
if (DL.isBigEndian())
ShAmt = 8 * (DL.getTypeStoreSize(IntTy) -
DL.getTypeStoreSize(ExtractedTy) - Offset);
if (ShAmt) {
V = CreateLShr(V, ShAmt, Name + ".shift");
}
assert(ExtractedTy->getBitWidth() <= IntTy->getBitWidth() &&
"Cannot extract to a larger integer!");
if (ExtractedTy != IntTy) {
V = CreateTrunc(V, ExtractedTy, Name + ".trunc");
}
return V;
}
/// \brief Create an assume intrinsic call that represents an alignment
/// assumption on the provided pointer.
///
/// An optional offset can be provided, and if it is provided, the offset
/// must be subtracted from the provided pointer to get the pointer with the
/// specified alignment.
CallInst *CreateAlignmentAssumption(const DataLayout &DL, Value *PtrValue,
unsigned Alignment,
Value *OffsetValue = nullptr) {
assert(isa<PointerType>(PtrValue->getType()) &&
"trying to create an alignment assumption on a non-pointer?");
PointerType *PtrTy = cast<PointerType>(PtrValue->getType());
Type *IntPtrTy = getIntPtrTy(&DL, PtrTy->getAddressSpace());
Value *PtrIntValue = CreatePtrToInt(PtrValue, IntPtrTy, "ptrint");
Value *Mask = ConstantInt::get(IntPtrTy,
Alignment > 0 ? Alignment - 1 : 0);
if (OffsetValue) {
bool IsOffsetZero = false;
if (ConstantInt *CI = dyn_cast<ConstantInt>(OffsetValue))
IsOffsetZero = CI->isZero();
if (!IsOffsetZero) {
if (OffsetValue->getType() != IntPtrTy)
OffsetValue = CreateIntCast(OffsetValue, IntPtrTy, /*isSigned*/ true,
"offsetcast");
PtrIntValue = CreateSub(PtrIntValue, OffsetValue, "offsetptr");
}
}
Value *Zero = ConstantInt::get(IntPtrTy, 0);
Value *MaskedPtr = CreateAnd(PtrIntValue, Mask, "maskedptr");
Value *InvCond = CreateICmpEQ(MaskedPtr, Zero, "maskcond");
return CreateAssumption(InvCond);
}
};
// Create wrappers for C Binding types (see CBindingWrapping.h).
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(IRBuilder<>, LLVMBuilderRef)
}
#endif
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