| //===-- OpDescriptor.cpp --------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/FuzzMutate/OpDescriptor.h" |
| #include "llvm/IR/Constants.h" |
| |
| using namespace llvm; |
| using namespace fuzzerop; |
| |
| void fuzzerop::makeConstantsWithType(Type *T, std::vector<Constant *> &Cs) { |
| if (auto *IntTy = dyn_cast<IntegerType>(T)) { |
| uint64_t W = IntTy->getBitWidth(); |
| Cs.push_back(ConstantInt::get(IntTy, 0)); |
| Cs.push_back(ConstantInt::get(IntTy, 1)); |
| Cs.push_back(ConstantInt::get(IntTy, 42)); |
| Cs.push_back(ConstantInt::get(IntTy, APInt::getMaxValue(W))); |
| Cs.push_back(ConstantInt::get(IntTy, APInt::getMinValue(W))); |
| Cs.push_back(ConstantInt::get(IntTy, APInt::getSignedMaxValue(W))); |
| Cs.push_back(ConstantInt::get(IntTy, APInt::getSignedMinValue(W))); |
| Cs.push_back(ConstantInt::get(IntTy, APInt::getOneBitSet(W, W / 2))); |
| } else if (T->isFloatingPointTy()) { |
| auto &Ctx = T->getContext(); |
| auto &Sem = T->getFltSemantics(); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat::getZero(Sem))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat(Sem, 1))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat(Sem, 42))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat::getLargest(Sem))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat::getSmallest(Sem))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat::getInf(Sem))); |
| Cs.push_back(ConstantFP::get(Ctx, APFloat::getNaN(Sem))); |
| } else if (VectorType *VecTy = dyn_cast<VectorType>(T)) { |
| std::vector<Constant *> EleCs; |
| Type *EltTy = VecTy->getElementType(); |
| makeConstantsWithType(EltTy, EleCs); |
| ElementCount EC = VecTy->getElementCount(); |
| for (Constant *Elt : EleCs) { |
| Cs.push_back(ConstantVector::getSplat(EC, Elt)); |
| } |
| } else { |
| Cs.push_back(UndefValue::get(T)); |
| Cs.push_back(PoisonValue::get(T)); |
| } |
| } |
| |
| std::vector<Constant *> fuzzerop::makeConstantsWithType(Type *T) { |
| std::vector<Constant *> Result; |
| makeConstantsWithType(T, Result); |
| return Result; |
| } |