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c6bcab02fd
This change implements a new fuzzer. It mutates a WGSL shader by traversing the AST of a program and applying various transformations that might or might not be semantics preserving. Change-Id: I6b144bd1067444c3f0b815ba1a646aaf6e739b52 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52160 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Vasyl Teliman <vasniktel@gmail.com> Reviewed-by: Alastair Donaldson <allydonaldson@googlemail.com> Reviewed-by: Ben Clayton <bclayton@google.com>
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
// Copyright 2021 The Tint Authors.
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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 FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_
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#define FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_
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#include "fuzzers/tint_ast_fuzzer/mutation_finder.h"
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namespace tint {
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namespace fuzzers {
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namespace ast_fuzzer {
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/// Looks for opportunities to apply `MutationReplaceIdentifier`.
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///
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/// Concretely, for each variable in the module, tries to replace its users with
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/// the uses of some other variables.
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class MutationFinderReplaceIdentifiers : public MutationFinder {
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public:
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MutationList FindMutations(
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const tint::Program& program,
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const NodeIdMap& node_id_map,
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ProbabilityContext* probability_context) const override;
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uint32_t GetChanceOfApplyingMutation(
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ProbabilityContext* probability_context) const override;
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};
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} // namespace ast_fuzzer
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} // namespace fuzzers
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} // namespace tint
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#endif // FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_
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