mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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bed84792f9
Adapts all transformation classes so that their protobuf message is passed by value and then moved into the message_ field.
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
// Copyright (c) 2019 Google LLC
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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 SOURCE_FUZZ_TRANSFORMATION_ADD_DEAD_BLOCK_H_
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#define SOURCE_FUZZ_TRANSFORMATION_ADD_DEAD_BLOCK_H_
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/fuzz/transformation.h"
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#include "source/fuzz/transformation_context.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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class TransformationAddDeadBlock : public Transformation {
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public:
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explicit TransformationAddDeadBlock(
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protobufs::TransformationAddDeadBlock message);
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TransformationAddDeadBlock(uint32_t fresh_id, uint32_t existing_block,
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bool condition_value);
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// - |message_.fresh_id| must be a fresh id
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// - A constant with the same value as |message_.condition_value| must be
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// available
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// - |message_.existing_block| must be a block that is not a loop header,
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// and that ends with OpBranch to a block that is not a merge block nor
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// continue target - this is because the successor will become the merge
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// block of a selection construct headed at |message_.existing_block|
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// - |message_.existing_block| must not be a back-edge block, since in this
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// case the newly-added block would lead to another back-edge to the
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// associated loop header
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bool IsApplicable(
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opt::IRContext* ir_context,
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const TransformationContext& transformation_context) const override;
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// Changes the OpBranch from |message_.existing_block| to its successor 's'
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// to an OpBranchConditional to either 's' or a new block,
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// |message_.fresh_id|, which itself unconditionally branches to 's'. The
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// conditional branch uses |message.condition_value| as its condition, and is
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// arranged so that control will pass to 's' at runtime.
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void Apply(opt::IRContext* ir_context,
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TransformationContext* transformation_context) const override;
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std::unordered_set<uint32_t> GetFreshIds() const override;
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protobufs::Transformation ToMessage() const override;
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private:
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protobufs::TransformationAddDeadBlock message_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_TRANSFORMATION_ADD_DEAD_BLOCK_H_
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