SPIRV-Tools/source/fuzz/fuzzer_pass_replace_linear_algebra_instructions.cpp
André Perez 91d921e892
spirv-fuzz: Implement the OpMatrixTimesMatrix linear algebra case (#3527)
This PR implements the OpMatrixTimesMatrix case for the
replace linear algebra instruction transformation.
2020-07-14 17:20:09 +01:00

69 lines
2.7 KiB
C++

// Copyright (c) 2020 André Perez Maselco
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/fuzz/fuzzer_pass_replace_linear_algebra_instructions.h"
#include "source/fuzz/fuzzer_util.h"
#include "source/fuzz/instruction_descriptor.h"
#include "source/fuzz/transformation_replace_linear_algebra_instruction.h"
namespace spvtools {
namespace fuzz {
FuzzerPassReplaceLinearAlgebraInstructions::
FuzzerPassReplaceLinearAlgebraInstructions(
opt::IRContext* ir_context,
TransformationContext* transformation_context,
FuzzerContext* fuzzer_context,
protobufs::TransformationSequence* transformations)
: FuzzerPass(ir_context, transformation_context, fuzzer_context,
transformations) {}
FuzzerPassReplaceLinearAlgebraInstructions::
~FuzzerPassReplaceLinearAlgebraInstructions() = default;
void FuzzerPassReplaceLinearAlgebraInstructions::Apply() {
// For each instruction, checks whether it is a supported linear algebra
// instruction. In this case, the transformation is randomly applied.
GetIRContext()->module()->ForEachInst([this](opt::Instruction* instruction) {
// TODO(https://github.com/KhronosGroup/SPIRV-Tools/issues/3354):
// Right now we only support certain operations. When this issue is
// addressed the following conditional can use the function
// |spvOpcodeIsLinearAlgebra|.
if (instruction->opcode() != SpvOpVectorTimesScalar &&
instruction->opcode() != SpvOpMatrixTimesScalar &&
instruction->opcode() != SpvOpVectorTimesMatrix &&
instruction->opcode() != SpvOpMatrixTimesVector &&
instruction->opcode() != SpvOpMatrixTimesMatrix &&
instruction->opcode() != SpvOpDot) {
return;
}
if (!GetFuzzerContext()->ChoosePercentage(
GetFuzzerContext()
->GetChanceOfReplacingLinearAlgebraInstructions())) {
return;
}
ApplyTransformation(TransformationReplaceLinearAlgebraInstruction(
GetFuzzerContext()->GetFreshIds(
TransformationReplaceLinearAlgebraInstruction::
GetRequiredFreshIdCount(GetIRContext(), instruction)),
MakeInstructionDescriptor(GetIRContext(), instruction)));
});
}
} // namespace fuzz
} // namespace spvtools