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// Copyright (c) 2020 André Perez Maselco
//
// 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.
#ifndef SOURCE_FUZZ_TRANSFORMATION_EXPAND_VECTOR_REDUCTION_H_
#define SOURCE_FUZZ_TRANSFORMATION_EXPAND_VECTOR_REDUCTION_H_
#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 {
// clang-format off
// SPIR-V code to help understand the transformation.
//
// -------------------------------------------------------------------------------
// | Reference shader | Variant shader |
// -------------------------------------------------------------------------------
// | OpCapability Shader | OpCapability Shader |
// | %1 = OpExtInstImport "GLSL.std.450" | %1 = OpExtInstImport "GLSL.std.450" |
// | OpMemoryModel Logical GLSL450 | OpMemoryModel Logical GLSL450 |
// | OpEntryPoint Vertex %9 "main" | OpEntryPoint Vertex %9 "main" |
// | | |
// | ; Types | ; Types |
// | %2 = OpTypeBool | %2 = OpTypeBool |
// | %3 = OpTypeVector %2 2 | %3 = OpTypeVector %2 2 |
// | %4 = OpTypeVoid | %4 = OpTypeVoid |
// | %5 = OpTypeFunction %4 | %5 = OpTypeFunction %4 |
// | | |
// | ; Constants | ; Constants |
// | %6 = OpConstantTrue %2 | %6 = OpConstantTrue %2 |
// | %7 = OpConstantFalse %2 | %7 = OpConstantFalse %2 |
// | %8 = OpConstantComposite %3 %6 %7 | %8 = OpConstantComposite %3 %6 %7 |
// | | |
// | ; main function | ; main function |
// | %9 = OpFunction %4 None %5 | %9 = OpFunction %4 None %5 |
// | %10 = OpLabel | %10 = OpLabel |
// | %11 = OpAny %2 %8 | |
// | %12 = OpAll %2 %8 | ; Add OpAny synonym |
// | OpReturn | %13 = OpCompositeExtract %2 %8 0 |
// | OpFunctionEnd | %14 = OpCompositeExtract %2 %8 1 |
// | | %15 = OpLogicalOr %2 %13 %14 |
// | | %11 = OpAny %2 %8 |
// | | |
// | | ; Add OpAll synonym |
// | | %16 = OpCompositeExtract %2 %8 0 |
// | | %17 = OpCompositeExtract %2 %8 1 |
// | | %18 = OpLogicalAnd %2 %16 %17 |
// | | %12 = OpAll %2 %8 |
// | | OpReturn |
// | | OpFunctionEnd |
// -------------------------------------------------------------------------------
//
// %11 and %15 are synonymous
// %12 and %18 are synonymous
// clang-format on
class TransformationExpandVectorReduction : public Transformation {
public:
explicit TransformationExpandVectorReduction(
protobufs::TransformationExpandVectorReduction message);
TransformationExpandVectorReduction(const uint32_t instruction_result_id,
const std::vector<uint32_t>& fresh_ids);
// - |message_.instruction_result_id| must be OpAny or OpAll.
// - |message_.fresh_ids| must be fresh ids needed to apply the
// transformation.
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Adds synonyms for OpAny and OpAll instructions by evaluating each vector
// component with the corresponding logical operation.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
// Returns the number of fresh ids required to apply the transformation.
static uint32_t GetRequiredFreshIdCount(opt::IRContext* ir_context,
opt::Instruction* instruction);
private:
protobufs::TransformationExpandVectorReduction message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_EXPAND_VECTOR_REDUCTION_H_