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https://github.com/KhronosGroup/SPIRV-Tools
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1b71e45338
With this pass, the fuzzer can split blocks in the input module. This is mainly useful in order to give other (future) transformations more opportunities to apply.
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Copyright (c) 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/pseudo_random_generator.h"
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#include <cassert>
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namespace spvtools {
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namespace fuzz {
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PseudoRandomGenerator::PseudoRandomGenerator(uint32_t seed) : mt_(seed) {}
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PseudoRandomGenerator::~PseudoRandomGenerator() = default;
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uint32_t PseudoRandomGenerator::RandomUint32(uint32_t bound) {
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assert(bound > 0 && "Bound must be positive");
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return static_cast<uint32_t>(
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std::uniform_int_distribution<>(0, bound - 1)(mt_));
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}
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bool PseudoRandomGenerator::RandomBool() {
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return static_cast<bool>(std::uniform_int_distribution<>(0, 1)(mt_));
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}
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uint32_t PseudoRandomGenerator::RandomPercentage() {
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// We use 101 because we want a result in the closed interval [0, 100], and
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// RandomUint32 is not inclusive of its bound.
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return RandomUint32(101);
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}
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double PseudoRandomGenerator::RandomDouble() {
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return std::uniform_real_distribution<double>(0.0, 1.0)(mt_);
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}
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} // namespace fuzz
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} // namespace spvtools
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