blob: cc44a612a1303a8f24cf98ff28c387640cd780bb [file] [log] [blame]
// 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
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/fuzz/transformation_context.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
class TransformationCompositeConstruct : public Transformation {
explicit TransformationCompositeConstruct(
protobufs::TransformationCompositeConstruct message);
uint32_t composite_type_id, std::vector<uint32_t> component,
const protobufs::InstructionDescriptor& instruction_to_insert_before,
uint32_t fresh_id);
// - |message_.fresh_id| must not be used by the module.
// - |message_.composite_type_id| must be the id of a composite type
// - The elements of |message_.component| must be result ids that are
// suitable for constructing an element of the given composite type, in
// order
// - The elements of |message_.component| must not be the target of any
// decorations.
// - |message_.base_instruction_id| must be the result id of an instruction
// 'base' in some block 'blk'.
// - 'blk' must contain an instruction 'inst' located |message_.offset|
// instructions after 'base' (if |message_.offset| = 0 then 'inst' =
// 'base').
// - It must be legal to insert an OpCompositeConstruct instruction directly
// before 'inst'.
// - Each element of |message_.component| must be available directly before
// 'inst'.
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Inserts a new OpCompositeConstruct instruction, with id
// |message_.fresh_id|, directly before the instruction identified by
// |message_.base_instruction_id| and |message_.offset|. The instruction
// creates a composite of type |message_.composite_type_id| using the ids of
// |message_.component|.
// Synonym facts are added between the elements of the resulting composite
// and the components used to construct it, as long as the associated ids
// support synonym creation.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
// Helper to decide whether the components of the transformation are suitable
// for constructing an array of the given type.
bool ComponentsForArrayConstructionAreOK(
opt::IRContext* ir_context, const opt::analysis::Array& array_type) const;
// Similar, but for matrices.
bool ComponentsForMatrixConstructionAreOK(
opt::IRContext* ir_context,
const opt::analysis::Matrix& matrix_type) const;
// Similar, but for structs.
bool ComponentsForStructConstructionAreOK(
opt::IRContext* ir_context,
const opt::analysis::Struct& struct_type) const;
// Similar, but for vectors.
bool ComponentsForVectorConstructionAreOK(
opt::IRContext* ir_context,
const opt::analysis::Vector& vector_type) const;
// Helper method for adding data synonym facts when applying the
// transformation to |ir_context| and |transformation_context|.
void AddDataSynonymFacts(opt::IRContext* ir_context,
TransformationContext* transformation_context) const;
protobufs::TransformationCompositeConstruct message_;
} // namespace fuzz
} // namespace spvtools