mirror of
https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77266 91177308-0d34-0410-b5e6-96231b3b80d8
540 lines
18 KiB
C++
540 lines
18 KiB
C++
//===-- LLVMContext.cpp - Implement LLVMContext -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements LLVMContext, as a wrapper around the opaque
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// class LLVMContextImpl.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/LLVMContext.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Instruction.h"
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#include "llvm/MDNode.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "LLVMContextImpl.h"
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#include <cstdarg>
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using namespace llvm;
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static ManagedStatic<LLVMContext> GlobalContext;
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LLVMContext& llvm::getGlobalContext() {
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return *GlobalContext;
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}
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LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) { }
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LLVMContext::~LLVMContext() { delete pImpl; }
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// Constant accessors
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// Constructor to create a '0' constant of arbitrary type...
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static const uint64_t zero[2] = {0, 0};
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Constant* LLVMContext::getNullValue(const Type* Ty) {
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switch (Ty->getTypeID()) {
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case Type::IntegerTyID:
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return ConstantInt::get(Ty, 0);
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case Type::FloatTyID:
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return ConstantFP::get(Ty->getContext(), APFloat(APInt(32, 0)));
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case Type::DoubleTyID:
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return ConstantFP::get(Ty->getContext(), APFloat(APInt(64, 0)));
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case Type::X86_FP80TyID:
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return ConstantFP::get(Ty->getContext(), APFloat(APInt(80, 2, zero)));
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case Type::FP128TyID:
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return ConstantFP::get(Ty->getContext(),
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APFloat(APInt(128, 2, zero), true));
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case Type::PPC_FP128TyID:
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return ConstantFP::get(Ty->getContext(), APFloat(APInt(128, 2, zero)));
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case Type::PointerTyID:
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return getConstantPointerNull(cast<PointerType>(Ty));
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case Type::StructTyID:
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case Type::ArrayTyID:
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case Type::VectorTyID:
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return getConstantAggregateZero(Ty);
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default:
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// Function, Label, or Opaque type?
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assert(!"Cannot create a null constant of that type!");
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return 0;
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}
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}
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Constant* LLVMContext::getAllOnesValue(const Type* Ty) {
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if (const IntegerType* ITy = dyn_cast<IntegerType>(Ty))
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return ConstantInt::get(*this, APInt::getAllOnesValue(ITy->getBitWidth()));
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std::vector<Constant*> Elts;
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const VectorType* VTy = cast<VectorType>(Ty);
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Elts.resize(VTy->getNumElements(), getAllOnesValue(VTy->getElementType()));
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assert(Elts[0] && "Not a vector integer type!");
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return cast<ConstantVector>(getConstantVector(Elts));
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}
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// UndefValue accessors.
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UndefValue* LLVMContext::getUndef(const Type* Ty) {
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return UndefValue::get(Ty);
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}
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// ConstantInt accessors.
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ConstantInt* LLVMContext::getTrue() {
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assert(this && "Context not initialized!");
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assert(pImpl && "Context not initialized!");
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return pImpl->getTrue();
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}
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ConstantInt* LLVMContext::getFalse() {
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assert(this && "Context not initialized!");
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assert(pImpl && "Context not initialized!");
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return pImpl->getFalse();
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}
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// ConstantPointerNull accessors.
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ConstantPointerNull* LLVMContext::getConstantPointerNull(const PointerType* T) {
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return ConstantPointerNull::get(T);
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}
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// ConstantAggregateZero accessors.
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ConstantAggregateZero* LLVMContext::getConstantAggregateZero(const Type* Ty) {
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return pImpl->getConstantAggregateZero(Ty);
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}
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// ConstantArray accessors.
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Constant* LLVMContext::getConstantArray(const ArrayType* T,
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const std::vector<Constant*>& V) {
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return pImpl->getConstantArray(T, V);
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}
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Constant* LLVMContext::getConstantArray(const ArrayType* T,
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Constant* const* Vals,
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unsigned NumVals) {
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// FIXME: make this the primary ctor method.
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return getConstantArray(T, std::vector<Constant*>(Vals, Vals+NumVals));
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}
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/// ConstantArray::get(const string&) - Return an array that is initialized to
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/// contain the specified string. If length is zero then a null terminator is
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/// added to the specified string so that it may be used in a natural way.
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/// Otherwise, the length parameter specifies how much of the string to use
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/// and it won't be null terminated.
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///
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Constant* LLVMContext::getConstantArray(const StringRef &Str,
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bool AddNull) {
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std::vector<Constant*> ElementVals;
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for (unsigned i = 0; i < Str.size(); ++i)
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ElementVals.push_back(ConstantInt::get(Type::Int8Ty, Str[i]));
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// Add a null terminator to the string...
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if (AddNull) {
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ElementVals.push_back(ConstantInt::get(Type::Int8Ty, 0));
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}
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ArrayType *ATy = getArrayType(Type::Int8Ty, ElementVals.size());
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return getConstantArray(ATy, ElementVals);
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}
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// ConstantExpr accessors.
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Constant* LLVMContext::getConstantExpr(unsigned Opcode, Constant* C1,
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Constant* C2) {
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return ConstantExpr::get(Opcode, C1, C2);
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}
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Constant* LLVMContext::getConstantExprTrunc(Constant* C, const Type* Ty) {
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return ConstantExpr::getTrunc(C, Ty);
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}
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Constant* LLVMContext::getConstantExprSExt(Constant* C, const Type* Ty) {
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return ConstantExpr::getSExt(C, Ty);
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}
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Constant* LLVMContext::getConstantExprZExt(Constant* C, const Type* Ty) {
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return ConstantExpr::getZExt(C, Ty);
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}
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Constant* LLVMContext::getConstantExprFPTrunc(Constant* C, const Type* Ty) {
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return ConstantExpr::getFPTrunc(C, Ty);
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}
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Constant* LLVMContext::getConstantExprFPExtend(Constant* C, const Type* Ty) {
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return ConstantExpr::getFPExtend(C, Ty);
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}
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Constant* LLVMContext::getConstantExprUIToFP(Constant* C, const Type* Ty) {
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return ConstantExpr::getUIToFP(C, Ty);
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}
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Constant* LLVMContext::getConstantExprSIToFP(Constant* C, const Type* Ty) {
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return ConstantExpr::getSIToFP(C, Ty);
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}
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Constant* LLVMContext::getConstantExprFPToUI(Constant* C, const Type* Ty) {
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return ConstantExpr::getFPToUI(C, Ty);
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}
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Constant* LLVMContext::getConstantExprFPToSI(Constant* C, const Type* Ty) {
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return ConstantExpr::getFPToSI(C, Ty);
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}
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Constant* LLVMContext::getConstantExprPtrToInt(Constant* C, const Type* Ty) {
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return ConstantExpr::getPtrToInt(C, Ty);
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}
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Constant* LLVMContext::getConstantExprIntToPtr(Constant* C, const Type* Ty) {
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return ConstantExpr::getIntToPtr(C, Ty);
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}
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Constant* LLVMContext::getConstantExprBitCast(Constant* C, const Type* Ty) {
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return ConstantExpr::getBitCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprCast(unsigned ops, Constant* C,
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const Type* Ty) {
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return ConstantExpr::getCast(ops, C, Ty);
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}
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Constant* LLVMContext::getConstantExprZExtOrBitCast(Constant* C,
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const Type* Ty) {
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return ConstantExpr::getZExtOrBitCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprSExtOrBitCast(Constant* C,
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const Type* Ty) {
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return ConstantExpr::getSExtOrBitCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprTruncOrBitCast(Constant* C,
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const Type* Ty) {
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return ConstantExpr::getTruncOrBitCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprPointerCast(Constant* C, const Type* Ty) {
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return ConstantExpr::getPointerCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprIntegerCast(Constant* C, const Type* Ty,
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bool isSigned) {
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return ConstantExpr::getIntegerCast(C, Ty, isSigned);
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}
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Constant* LLVMContext::getConstantExprFPCast(Constant* C, const Type* Ty) {
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return ConstantExpr::getFPCast(C, Ty);
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}
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Constant* LLVMContext::getConstantExprSelect(Constant* C, Constant* V1,
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Constant* V2) {
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return ConstantExpr::getSelect(C, V1, V2);
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}
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Constant* LLVMContext::getConstantExprAlignOf(const Type* Ty) {
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// alignof is implemented as: (i64) gep ({i8,Ty}*)null, 0, 1
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const Type *AligningTy = getStructType(Type::Int8Ty, Ty, NULL);
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Constant *NullPtr = getNullValue(AligningTy->getPointerTo());
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Constant *Zero = ConstantInt::get(Type::Int32Ty, 0);
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Constant *One = ConstantInt::get(Type::Int32Ty, 1);
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Constant *Indices[2] = { Zero, One };
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Constant *GEP = getConstantExprGetElementPtr(NullPtr, Indices, 2);
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return getConstantExprCast(Instruction::PtrToInt, GEP, Type::Int32Ty);
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}
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Constant* LLVMContext::getConstantExprCompare(unsigned short pred,
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Constant* C1, Constant* C2) {
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return ConstantExpr::getCompare(pred, C1, C2);
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}
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Constant* LLVMContext::getConstantExprNeg(Constant* C) {
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// API compatibility: Adjust integer opcodes to floating-point opcodes.
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if (C->getType()->isFPOrFPVector())
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return getConstantExprFNeg(C);
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assert(C->getType()->isIntOrIntVector() &&
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"Cannot NEG a nonintegral value!");
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return getConstantExpr(Instruction::Sub,
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ConstantFP::getZeroValueForNegation(C->getType()),
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C);
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}
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Constant* LLVMContext::getConstantExprFNeg(Constant* C) {
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assert(C->getType()->isFPOrFPVector() &&
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"Cannot FNEG a non-floating-point value!");
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return getConstantExpr(Instruction::FSub,
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ConstantFP::getZeroValueForNegation(C->getType()),
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C);
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}
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Constant* LLVMContext::getConstantExprNot(Constant* C) {
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assert(C->getType()->isIntOrIntVector() &&
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"Cannot NOT a nonintegral value!");
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return getConstantExpr(Instruction::Xor, C, getAllOnesValue(C->getType()));
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}
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Constant* LLVMContext::getConstantExprAdd(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Add, C1, C2);
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}
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Constant* LLVMContext::getConstantExprFAdd(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::FAdd, C1, C2);
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}
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Constant* LLVMContext::getConstantExprSub(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Sub, C1, C2);
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}
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Constant* LLVMContext::getConstantExprFSub(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::FSub, C1, C2);
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}
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Constant* LLVMContext::getConstantExprMul(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Mul, C1, C2);
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}
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Constant* LLVMContext::getConstantExprFMul(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::FMul, C1, C2);
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}
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Constant* LLVMContext::getConstantExprUDiv(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::UDiv, C1, C2);
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}
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Constant* LLVMContext::getConstantExprSDiv(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::SDiv, C1, C2);
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}
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Constant* LLVMContext::getConstantExprFDiv(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::FDiv, C1, C2);
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}
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Constant* LLVMContext::getConstantExprURem(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::URem, C1, C2);
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}
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Constant* LLVMContext::getConstantExprSRem(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::SRem, C1, C2);
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}
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Constant* LLVMContext::getConstantExprFRem(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::FRem, C1, C2);
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}
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Constant* LLVMContext::getConstantExprAnd(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::And, C1, C2);
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}
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Constant* LLVMContext::getConstantExprOr(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Or, C1, C2);
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}
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Constant* LLVMContext::getConstantExprXor(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Xor, C1, C2);
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}
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Constant* LLVMContext::getConstantExprICmp(unsigned short pred, Constant* LHS,
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Constant* RHS) {
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return ConstantExpr::getICmp(pred, LHS, RHS);
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}
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Constant* LLVMContext::getConstantExprFCmp(unsigned short pred, Constant* LHS,
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Constant* RHS) {
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return ConstantExpr::getFCmp(pred, LHS, RHS);
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}
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Constant* LLVMContext::getConstantExprShl(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::Shl, C1, C2);
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}
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Constant* LLVMContext::getConstantExprLShr(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::LShr, C1, C2);
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}
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Constant* LLVMContext::getConstantExprAShr(Constant* C1, Constant* C2) {
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return getConstantExpr(Instruction::AShr, C1, C2);
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}
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Constant* LLVMContext::getConstantExprGetElementPtr(Constant* C,
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Constant* const* IdxList,
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unsigned NumIdx) {
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return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx);
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}
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Constant* LLVMContext::getConstantExprGetElementPtr(Constant* C,
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Value* const* IdxList,
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unsigned NumIdx) {
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return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx);
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}
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Constant* LLVMContext::getConstantExprExtractElement(Constant* Vec,
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Constant* Idx) {
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return ConstantExpr::getExtractElement(Vec, Idx);
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}
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Constant* LLVMContext::getConstantExprInsertElement(Constant* Vec,
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Constant* Elt,
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Constant* Idx) {
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return ConstantExpr::getInsertElement(Vec, Elt, Idx);
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}
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Constant* LLVMContext::getConstantExprShuffleVector(Constant* V1, Constant* V2,
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Constant* Mask) {
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return ConstantExpr::getShuffleVector(V1, V2, Mask);
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}
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Constant* LLVMContext::getConstantExprExtractValue(Constant* Agg,
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const unsigned* IdxList,
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unsigned NumIdx) {
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return ConstantExpr::getExtractValue(Agg, IdxList, NumIdx);
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}
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Constant* LLVMContext::getConstantExprInsertValue(Constant* Agg, Constant* Val,
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const unsigned* IdxList,
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unsigned NumIdx) {
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return ConstantExpr::getInsertValue(Agg, Val, IdxList, NumIdx);
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}
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Constant* LLVMContext::getConstantExprSizeOf(const Type* Ty) {
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// sizeof is implemented as: (i64) gep (Ty*)null, 1
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// Note that a non-inbounds gep is used, as null isn't within any object.
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Constant *GEPIdx = ConstantInt::get(Type::Int32Ty, 1);
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Constant *GEP = getConstantExprGetElementPtr(
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getNullValue(getPointerTypeUnqual(Ty)), &GEPIdx, 1);
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return getConstantExprCast(Instruction::PtrToInt, GEP, Type::Int64Ty);
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}
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// ConstantVector accessors.
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Constant* LLVMContext::getConstantVector(const VectorType* T,
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const std::vector<Constant*>& V) {
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return pImpl->getConstantVector(T, V);
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}
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Constant* LLVMContext::getConstantVector(const std::vector<Constant*>& V) {
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assert(!V.empty() && "Cannot infer type if V is empty");
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return getConstantVector(getVectorType(V.front()->getType(),V.size()), V);
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}
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Constant* LLVMContext::getConstantVector(Constant* const* Vals,
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unsigned NumVals) {
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// FIXME: make this the primary ctor method.
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return getConstantVector(std::vector<Constant*>(Vals, Vals+NumVals));
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}
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// MDNode accessors
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MDNode* LLVMContext::getMDNode(Value* const* Vals, unsigned NumVals) {
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return pImpl->getMDNode(Vals, NumVals);
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}
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// MDString accessors
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MDString* LLVMContext::getMDString(const StringRef &Str) {
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return pImpl->getMDString(Str.data(), Str.size());
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}
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// FunctionType accessors
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FunctionType* LLVMContext::getFunctionType(const Type* Result, bool isVarArg) {
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return FunctionType::get(Result, isVarArg);
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}
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FunctionType* LLVMContext::getFunctionType(const Type* Result,
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const std::vector<const Type*>& Params,
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bool isVarArg) {
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return FunctionType::get(Result, Params, isVarArg);
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}
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// IntegerType accessors
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const IntegerType* LLVMContext::getIntegerType(unsigned NumBits) {
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return IntegerType::get(NumBits);
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}
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// OpaqueType accessors
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OpaqueType* LLVMContext::getOpaqueType() {
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return OpaqueType::get();
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}
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// StructType accessors
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StructType* LLVMContext::getStructType(bool isPacked) {
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return StructType::get(isPacked);
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}
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StructType* LLVMContext::getStructType(const std::vector<const Type*>& Params,
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bool isPacked) {
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return StructType::get(Params, isPacked);
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}
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StructType *LLVMContext::getStructType(const Type *type, ...) {
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va_list ap;
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std::vector<const llvm::Type*> StructFields;
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va_start(ap, type);
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while (type) {
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StructFields.push_back(type);
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type = va_arg(ap, llvm::Type*);
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}
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return StructType::get(StructFields);
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}
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// ArrayType accessors
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ArrayType* LLVMContext::getArrayType(const Type* ElementType,
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uint64_t NumElements) {
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return ArrayType::get(ElementType, NumElements);
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}
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// PointerType accessors
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PointerType* LLVMContext::getPointerType(const Type* ElementType,
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unsigned AddressSpace) {
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return PointerType::get(ElementType, AddressSpace);
|
|
}
|
|
|
|
PointerType* LLVMContext::getPointerTypeUnqual(const Type* ElementType) {
|
|
return PointerType::getUnqual(ElementType);
|
|
}
|
|
|
|
// VectorType accessors
|
|
VectorType* LLVMContext::getVectorType(const Type* ElementType,
|
|
unsigned NumElements) {
|
|
return VectorType::get(ElementType, NumElements);
|
|
}
|
|
|
|
VectorType* LLVMContext::getVectorTypeInteger(const VectorType* VTy) {
|
|
return VectorType::getInteger(VTy);
|
|
}
|
|
|
|
VectorType* LLVMContext::getVectorTypeExtendedElement(const VectorType* VTy) {
|
|
return VectorType::getExtendedElementVectorType(VTy);
|
|
}
|
|
|
|
VectorType* LLVMContext::getVectorTypeTruncatedElement(const VectorType* VTy) {
|
|
return VectorType::getTruncatedElementVectorType(VTy);
|
|
}
|
|
|
|
const Type* LLVMContext::makeCmpResultType(const Type* opnd_type) {
|
|
if (const VectorType* vt = dyn_cast<const VectorType>(opnd_type)) {
|
|
return getVectorType(Type::Int1Ty, vt->getNumElements());
|
|
}
|
|
return Type::Int1Ty;
|
|
}
|
|
|
|
void LLVMContext::erase(MDString *M) {
|
|
pImpl->erase(M);
|
|
}
|
|
|
|
void LLVMContext::erase(MDNode *M) {
|
|
pImpl->erase(M);
|
|
}
|
|
|
|
void LLVMContext::erase(ConstantAggregateZero *Z) {
|
|
pImpl->erase(Z);
|
|
}
|
|
|
|
void LLVMContext::erase(ConstantArray *C) {
|
|
pImpl->erase(C);
|
|
}
|
|
|
|
void LLVMContext::erase(ConstantVector *V) {
|
|
pImpl->erase(V);
|
|
}
|
|
|
|
Constant *LLVMContext::replaceUsesOfWithOnConstant(ConstantArray *CA,
|
|
Value *From, Value *To, Use *U) {
|
|
return pImpl->replaceUsesOfWithOnConstant(CA, From, To, U);
|
|
}
|