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https://github.com/KhronosGroup/SPIRV-Tools
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91 lines
3.3 KiB
C++
91 lines
3.3 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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#ifndef SOURCE_FUZZ_FACT_MANAGER_CONSTANT_UNIFORM_FACTS_H_
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#define SOURCE_FUZZ_FACT_MANAGER_CONSTANT_UNIFORM_FACTS_H_
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#include <vector>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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namespace fact_manager {
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// The purpose of this class is to group the fields and data used to represent
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// facts about uniform constants.
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class ConstantUniformFacts {
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public:
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explicit ConstantUniformFacts(opt::IRContext* ir_context);
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// See method in FactManager which delegates to this method.
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bool MaybeAddFact(const protobufs::FactConstantUniform& fact);
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// See method in FactManager which delegates to this method.
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std::vector<uint32_t> GetConstantsAvailableFromUniformsForType(
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uint32_t type_id) const;
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// See method in FactManager which delegates to this method.
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std::vector<protobufs::UniformBufferElementDescriptor>
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GetUniformDescriptorsForConstant(uint32_t constant_id) const;
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// See method in FactManager which delegates to this method.
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uint32_t GetConstantFromUniformDescriptor(
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const protobufs::UniformBufferElementDescriptor& uniform_descriptor)
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const;
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// See method in FactManager which delegates to this method.
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std::vector<uint32_t> GetTypesForWhichUniformValuesAreKnown() const;
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// See method in FactManager which delegates to this method.
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const std::vector<std::pair<protobufs::FactConstantUniform, uint32_t>>&
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GetConstantUniformFactsAndTypes() const;
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private:
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// Returns true if and only if the words associated with
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// |constant_instruction| exactly match the words for the constant associated
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// with |constant_uniform_fact|.
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static bool DataMatches(
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const opt::Instruction& constant_instruction,
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const protobufs::FactConstantUniform& constant_uniform_fact);
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// Yields the constant words associated with |constant_uniform_fact|.
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static std::vector<uint32_t> GetConstantWords(
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const protobufs::FactConstantUniform& constant_uniform_fact);
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// Yields the id of a constant of type |type_id| whose data matches the
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// constant data in |constant_uniform_fact|, or 0 if no such constant is
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// declared.
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uint32_t GetConstantId(
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const protobufs::FactConstantUniform& constant_uniform_fact,
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uint32_t type_id) const;
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// Checks that the width of a floating-point constant is supported, and that
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// the constant is finite.
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static bool FloatingPointValueIsSuitable(
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const protobufs::FactConstantUniform& fact, uint32_t width);
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std::vector<std::pair<protobufs::FactConstantUniform, uint32_t>>
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facts_and_type_ids_;
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opt::IRContext* ir_context_;
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};
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} // namespace fact_manager
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_FACT_MANAGER_CONSTANT_UNIFORM_FACTS_H_
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