llvm/mlir/lib/Dialect/Bufferization/Transforms/Bufferize.cpp

//===- Bufferize.cpp - Bufferization utilities ----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Bufferization/Transforms/Passes.h"

#include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h"
#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
#include "mlir/Dialect/Bufferization/Transforms/Bufferize.h"
#include "mlir/Dialect/Bufferization/Transforms/OneShotAnalysis.h"
#include "mlir/Dialect/Bufferization/Transforms/OneShotModuleBufferize.h"
#include "mlir/Dialect/Bufferization/Transforms/Transforms.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/IR/Diagnostics.h"
#include "mlir/IR/Operation.h"
#include "mlir/Interfaces/ControlFlowInterfaces.h"
#include "mlir/Interfaces/SideEffectInterfaces.h"
#include "mlir/Pass/PassManager.h"
#include "mlir/Transforms/Passes.h"
#include <optional>

namespace mlir {
namespace bufferization {
#define GEN_PASS_DEF_FINALIZINGBUFFERIZE
#define GEN_PASS_DEF_BUFFERIZATIONBUFFERIZE
#define GEN_PASS_DEF_ONESHOTBUFFERIZE
#include "mlir/Dialect/Bufferization/Transforms/Passes.h.inc"
} // namespace bufferization
} // namespace mlir

#define DEBUG_TYPE …

usingnamespacemlir;
usingnamespacemlir::bufferization;

//===----------------------------------------------------------------------===//
// BufferizeTypeConverter
//===----------------------------------------------------------------------===//

static Value materializeToTensor(OpBuilder &builder, TensorType type,
                                 ValueRange inputs, Location loc) { … }

/// Registers conversions into BufferizeTypeConverter
BufferizeTypeConverter::BufferizeTypeConverter() { … }

void mlir::bufferization::populateBufferizeMaterializationLegality(
    ConversionTarget &target) { … }

namespace {
// In a finalizing bufferize conversion, we know that all tensors have been
// converted to memrefs, thus, this op becomes an identity.
class BufferizeToTensorOp
    : public OpConversionPattern<bufferization::ToTensorOp> { … };
} // namespace

namespace {
// In a finalizing bufferize conversion, we know that all tensors have been
// converted to memrefs, thus, this op becomes an identity.
class BufferizeToMemrefOp
    : public OpConversionPattern<bufferization::ToMemrefOp> { … };
} // namespace

void mlir::bufferization::populateEliminateBufferizeMaterializationsPatterns(
    const BufferizeTypeConverter &typeConverter, RewritePatternSet &patterns) { … }

namespace {
struct FinalizingBufferizePass
    : public bufferization::impl::FinalizingBufferizeBase<
          FinalizingBufferizePass> { … };

static LayoutMapOption parseLayoutMapOption(const std::string &s) { … }

static OneShotBufferizationOptions::AnalysisHeuristic
parseHeuristicOption(const std::string &s) { … }

struct OneShotBufferizePass
    : public bufferization::impl::OneShotBufferizeBase<OneShotBufferizePass> { … };
} // namespace

std::unique_ptr<Pass> mlir::bufferization::createOneShotBufferizePass() { … }

std::unique_ptr<Pass> mlir::bufferization::createOneShotBufferizePass(
    const OneShotBufferizationOptions &options) { … }

std::unique_ptr<OperationPass<func::FuncOp>>
mlir::bufferization::createFinalizingBufferizePass() { … }

//===----------------------------------------------------------------------===//
// BufferizableOpInterface-based Bufferization
//===----------------------------------------------------------------------===//

namespace {
/// A rewriter that keeps track of extra information during bufferization.
class BufferizationRewriter : public IRRewriter, public RewriterBase::Listener { … };
} // namespace

LogicalResult bufferization::bufferizeOp(Operation *op,
                                         const BufferizationOptions &options,
                                         BufferizationStatistics *statistics) { … }

LogicalResult
bufferization::bufferizeBlockSignature(Block *block, RewriterBase &rewriter,
                                       const BufferizationOptions &options) { … }

BufferizationOptions bufferization::getPartialBufferizationOptions() { … }