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// Copyright (c) 2019 Google LLC
//
// 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/transformation_add_no_contraction_decoration.h"
#include "source/fuzz/fuzzer_util.h"
namespace spvtools {
namespace fuzz {
TransformationAddNoContractionDecoration::
TransformationAddNoContractionDecoration(
protobufs::TransformationAddNoContractionDecoration message)
: message_(std::move(message)) {}
TransformationAddNoContractionDecoration::
TransformationAddNoContractionDecoration(uint32_t result_id) {
message_.set_result_id(result_id);
}
bool TransformationAddNoContractionDecoration::IsApplicable(
opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
// |message_.result_id| must be the id of an instruction.
auto instr = ir_context->get_def_use_mgr()->GetDef(message_.result_id());
if (!instr) {
return false;
}
// The instruction must be arithmetic.
return IsArithmetic(instr->opcode());
}
void TransformationAddNoContractionDecoration::Apply(
opt::IRContext* ir_context, TransformationContext* /*unused*/) const {
// Add a NoContraction decoration targeting |message_.result_id|.
ir_context->get_decoration_mgr()->AddDecoration(
message_.result_id(), uint32_t(spv::Decoration::NoContraction));
}
protobufs::Transformation TransformationAddNoContractionDecoration::ToMessage()
const {
protobufs::Transformation result;
*result.mutable_add_no_contraction_decoration() = message_;
return result;
}
bool TransformationAddNoContractionDecoration::IsArithmetic(spv::Op opcode) {
switch (opcode) {
case spv::Op::OpSNegate:
case spv::Op::OpFNegate:
case spv::Op::OpIAdd:
case spv::Op::OpFAdd:
case spv::Op::OpISub:
case spv::Op::OpFSub:
case spv::Op::OpIMul:
case spv::Op::OpFMul:
case spv::Op::OpUDiv:
case spv::Op::OpSDiv:
case spv::Op::OpFDiv:
case spv::Op::OpUMod:
case spv::Op::OpSRem:
case spv::Op::OpSMod:
case spv::Op::OpFRem:
case spv::Op::OpFMod:
case spv::Op::OpVectorTimesScalar:
case spv::Op::OpMatrixTimesScalar:
case spv::Op::OpVectorTimesMatrix:
case spv::Op::OpMatrixTimesVector:
case spv::Op::OpMatrixTimesMatrix:
case spv::Op::OpOuterProduct:
case spv::Op::OpDot:
case spv::Op::OpIAddCarry:
case spv::Op::OpISubBorrow:
case spv::Op::OpUMulExtended:
case spv::Op::OpSMulExtended:
case spv::Op::OpAny:
case spv::Op::OpAll:
case spv::Op::OpIsNan:
case spv::Op::OpIsInf:
case spv::Op::OpIsFinite:
case spv::Op::OpIsNormal:
case spv::Op::OpSignBitSet:
case spv::Op::OpLessOrGreater:
case spv::Op::OpOrdered:
case spv::Op::OpUnordered:
case spv::Op::OpLogicalEqual:
case spv::Op::OpLogicalNotEqual:
case spv::Op::OpLogicalOr:
case spv::Op::OpLogicalAnd:
case spv::Op::OpLogicalNot:
return true;
default:
return false;
}
}
std::unordered_set<uint32_t>
TransformationAddNoContractionDecoration::GetFreshIds() const {
return std::unordered_set<uint32_t>();
}
} // namespace fuzz
} // namespace spvtools
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