1 // Copyright (c) 2020 Vasyl Teliman
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "source/fuzz/fuzzer_pass_invert_comparison_operators.h"
16
17 #include "source/fuzz/fuzzer_context.h"
18 #include "source/fuzz/fuzzer_util.h"
19 #include "source/fuzz/transformation_invert_comparison_operator.h"
20
21 namespace spvtools {
22 namespace fuzz {
23
FuzzerPassInvertComparisonOperators(opt::IRContext * ir_context,TransformationContext * transformation_context,FuzzerContext * fuzzer_context,protobufs::TransformationSequence * transformations)24 FuzzerPassInvertComparisonOperators::FuzzerPassInvertComparisonOperators(
25 opt::IRContext* ir_context, TransformationContext* transformation_context,
26 FuzzerContext* fuzzer_context,
27 protobufs::TransformationSequence* transformations)
28 : FuzzerPass(ir_context, transformation_context, fuzzer_context,
29 transformations) {}
30
Apply()31 void FuzzerPassInvertComparisonOperators::Apply() {
32 GetIRContext()->module()->ForEachInst([this](const opt::Instruction* inst) {
33 if (!TransformationInvertComparisonOperator::IsInversionSupported(
34 inst->opcode())) {
35 return;
36 }
37
38 if (!GetFuzzerContext()->ChoosePercentage(
39 GetFuzzerContext()->GetChanceOfInvertingComparisonOperators())) {
40 return;
41 }
42
43 ApplyTransformation(TransformationInvertComparisonOperator(
44 inst->result_id(), GetFuzzerContext()->GetFreshId()));
45 });
46 }
47
48 } // namespace fuzz
49 } // namespace spvtools
50