39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
//===-- OpDescriptor.cpp --------------------------------------------------===//
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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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#include "llvm/FuzzMutate/OpDescriptor.h"
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#include "llvm/IR/Constants.h"
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using namespace llvm;
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using namespace fuzzerop;
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void fuzzerop::makeConstantsWithType(Type *T, std::vector<Constant *> &Cs) {
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if (auto *IntTy = dyn_cast<IntegerType>(T)) {
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uint64_t W = IntTy->getBitWidth();
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Cs.push_back(ConstantInt::get(IntTy, APInt::getMaxValue(W)));
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Cs.push_back(ConstantInt::get(IntTy, APInt::getMinValue(W)));
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Cs.push_back(ConstantInt::get(IntTy, APInt::getSignedMaxValue(W)));
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Cs.push_back(ConstantInt::get(IntTy, APInt::getSignedMinValue(W)));
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Cs.push_back(ConstantInt::get(IntTy, APInt::getOneBitSet(W, W / 2)));
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} else if (T->isFloatingPointTy()) {
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auto &Ctx = T->getContext();
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auto &Sem = T->getFltSemantics();
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Cs.push_back(ConstantFP::get(Ctx, APFloat::getZero(Sem)));
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Cs.push_back(ConstantFP::get(Ctx, APFloat::getLargest(Sem)));
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Cs.push_back(ConstantFP::get(Ctx, APFloat::getSmallest(Sem)));
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} else
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Cs.push_back(UndefValue::get(T));
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}
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std::vector<Constant *> fuzzerop::makeConstantsWithType(Type *T) {
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std::vector<Constant *> Result;
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makeConstantsWithType(T, Result);
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return Result;
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}
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