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.
92 lines
4.0 KiB
C++
92 lines
4.0 KiB
C++
// Copyright (c) 2020 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_DUPLICATE_REGION_WITH_SELECTION_H_
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#define SOURCE_FUZZ_TRANSFORMATION_DUPLICATE_REGION_WITH_SELECTION_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 TransformationDuplicateRegionWithSelection : public Transformation {
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public:
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explicit TransformationDuplicateRegionWithSelection(
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protobufs::TransformationDuplicateRegionWithSelection message);
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explicit TransformationDuplicateRegionWithSelection(
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uint32_t new_entry_fresh_id, uint32_t condition_id,
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uint32_t merge_label_fresh_id, uint32_t entry_block_id,
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uint32_t exit_block_id,
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const std::map<uint32_t, uint32_t>& original_label_to_duplicate_label,
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const std::map<uint32_t, uint32_t>& original_id_to_duplicate_id,
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const std::map<uint32_t, uint32_t>& original_id_to_phi_id);
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// - |new_entry_fresh_id|, |merge_label_fresh_id| must be fresh and distinct.
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// - |condition_id| must refer to a valid instruction of boolean type.
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// - |entry_block_id| and |exit_block_id| must refer to valid blocks and they
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// must form a single-entry, single-exit region. Its constructs and their
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// merge blocks must be either wholly within or wholly outside of the
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// region.
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// - |original_label_to_duplicate_label| must contain at least a key for every
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// block in the original region.
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// - |original_id_to_duplicate_id| must contain at least a key for every
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// result id in the original region.
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// - |original_id_to_phi_id| must contain at least a key for every result id
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// available at the end of the original region.
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// - In each of these three maps, each value must be a distinct, fresh id.
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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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// A transformation that inserts a conditional statement with a boolean
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// expression of arbitrary value and duplicates a given single-entry,
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// single-exit region, so that it is present in each conditional branch and
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// will be executed regardless of which branch will be taken.
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void Apply(opt::IRContext* ir_context,
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TransformationContext* transformation_context) const override;
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// Returns the set of blocks dominated by |entry_block| and post-dominated
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// by |exit_block|.
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static std::set<opt::BasicBlock*> GetRegionBlocks(
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opt::IRContext* ir_context, opt::BasicBlock* entry_block,
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opt::BasicBlock* exit_block);
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// Returns true if and only if |instr| is available at the end of the region
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// for which |exit_block| is the final block.
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static bool AvailableAfterRegion(const opt::Instruction& instr,
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opt::BasicBlock* exit_block,
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opt::IRContext* ir_context);
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// Returns true if and only if |instr| is valid as an argument to an OpPhi
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// instruction.
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static bool ValidOpPhiArgument(const opt::Instruction& instr,
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opt::IRContext* ir_context);
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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::TransformationDuplicateRegionWithSelection 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_DUPLICATE_REGION_WITH_SELECTION_H_
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