| // 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_set_selection_control.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| TransformationSetSelectionControl::TransformationSetSelectionControl( |
| protobufs::TransformationSetSelectionControl message) |
| : message_(std::move(message)) {} |
| |
| TransformationSetSelectionControl::TransformationSetSelectionControl( |
| uint32_t block_id, uint32_t selection_control) { |
| message_.set_block_id(block_id); |
| message_.set_selection_control(selection_control); |
| } |
| |
| bool TransformationSetSelectionControl::IsApplicable( |
| opt::IRContext* ir_context, const TransformationContext& /*unused*/) const { |
| assert((spv::SelectionControlMask(message_.selection_control()) == |
| spv::SelectionControlMask::MaskNone || |
| spv::SelectionControlMask(message_.selection_control()) == |
| spv::SelectionControlMask::Flatten || |
| spv::SelectionControlMask(message_.selection_control()) == |
| spv::SelectionControlMask::DontFlatten) && |
| "Selection control should never be set to something other than " |
| "'None', 'Flatten' or 'DontFlatten'"); |
| if (auto block = ir_context->get_instr_block(message_.block_id())) { |
| if (auto merge_inst = block->GetMergeInst()) { |
| return merge_inst->opcode() == spv::Op::OpSelectionMerge; |
| } |
| } |
| // Either the block did not exit, or did not end with OpSelectionMerge. |
| return false; |
| } |
| |
| void TransformationSetSelectionControl::Apply( |
| opt::IRContext* ir_context, TransformationContext* /*unused*/) const { |
| ir_context->get_instr_block(message_.block_id()) |
| ->GetMergeInst() |
| ->SetInOperand(1, {message_.selection_control()}); |
| } |
| |
| protobufs::Transformation TransformationSetSelectionControl::ToMessage() const { |
| protobufs::Transformation result; |
| *result.mutable_set_selection_control() = message_; |
| return result; |
| } |
| |
| std::unordered_set<uint32_t> TransformationSetSelectionControl::GetFreshIds() |
| const { |
| return std::unordered_set<uint32_t>(); |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |