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https://github.com/KhronosGroup/SPIRV-Tools
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fcb22ecf0f
Adds a virtual method, GetFreshIds(), to Transformation. Every transformation uses this to indicate which ids in its protobuf message are fresh ids. This means that when replaying a sequence of transformations the replayer can obtain a smallest id that is not in use by the module already and that will not be used by any transformation by necessity. Ids greater than or equal to this id can be used as overflow ids. Fixes #3851.
70 lines
2.7 KiB
C++
70 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_GLOBAL_VARIABLE_H_
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#define SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_VARIABLE_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 TransformationAddGlobalVariable : public Transformation {
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public:
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explicit TransformationAddGlobalVariable(
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const protobufs::TransformationAddGlobalVariable& message);
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TransformationAddGlobalVariable(uint32_t fresh_id, uint32_t type_id,
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SpvStorageClass storage_class,
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uint32_t initializer_id,
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bool value_is_irrelevant);
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// - |message_.fresh_id| must be fresh
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// - |message_.type_id| must be the id of a pointer type with the same storage
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// class as |message_.storage_class|
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// - |message_.storage_class| must be Private or Workgroup
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// - |message_.initializer_id| must be 0 if |message_.storage_class| is
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// Workgroup, and otherwise may either be 0 or the id of a constant whose
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// type is the pointee type of |message_.type_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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// Adds a global variable with storage class |message_.storage_class| to the
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// module, with type |message_.type_id| and either no initializer or
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// |message_.initializer_id| as an initializer, depending on whether
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// |message_.initializer_id| is 0. The global variable has result id
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// |message_.fresh_id|.
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//
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// If |message_.value_is_irrelevant| holds, adds a corresponding fact to the
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// fact manager in |transformation_context|.
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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::TransformationAddGlobalVariable 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_GLOBAL_VARIABLE_H_
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