70 lines
2.8 KiB
C++
70 lines
2.8 KiB
C++
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//===- AllocationOpInterfaceImpl.cpp - Impl. of AllocationOpInterface -----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/MemRef/Transforms/AllocationOpInterfaceImpl.h"
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#include "mlir/Dialect/Bufferization/IR/AllocationOpInterface.h"
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#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/IR/Dialect.h"
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#include "mlir/IR/Operation.h"
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using namespace mlir;
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namespace {
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struct DefaultAllocationInterface
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: public bufferization::AllocationOpInterface::ExternalModel<
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DefaultAllocationInterface, memref::AllocOp> {
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static std::optional<Operation *> buildDealloc(OpBuilder &builder,
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Value alloc) {
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return builder.create<memref::DeallocOp>(alloc.getLoc(), alloc)
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.getOperation();
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}
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static std::optional<Value> buildClone(OpBuilder &builder, Value alloc) {
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return builder.create<bufferization::CloneOp>(alloc.getLoc(), alloc)
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.getResult();
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}
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static ::mlir::HoistingKind getHoistingKind() {
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return HoistingKind::Loop | HoistingKind::Block;
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}
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static ::std::optional<::mlir::Operation *>
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buildPromotedAlloc(OpBuilder &builder, Value alloc) {
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Operation *definingOp = alloc.getDefiningOp();
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return builder.create<memref::AllocaOp>(
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definingOp->getLoc(), cast<MemRefType>(definingOp->getResultTypes()[0]),
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definingOp->getOperands(), definingOp->getAttrs());
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}
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};
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struct DefaultAutomaticAllocationHoistingInterface
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: public bufferization::AllocationOpInterface::ExternalModel<
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DefaultAutomaticAllocationHoistingInterface, memref::AllocaOp> {
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static ::mlir::HoistingKind getHoistingKind() { return HoistingKind::Loop; }
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};
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struct DefaultReallocationInterface
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: public bufferization::AllocationOpInterface::ExternalModel<
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DefaultAllocationInterface, memref::ReallocOp> {
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static std::optional<Operation *> buildDealloc(OpBuilder &builder,
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Value realloc) {
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return builder.create<memref::DeallocOp>(realloc.getLoc(), realloc)
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.getOperation();
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}
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};
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} // namespace
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void mlir::memref::registerAllocationOpInterfaceExternalModels(
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DialectRegistry ®istry) {
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registry.addExtension(+[](MLIRContext *ctx, memref::MemRefDialect *dialect) {
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memref::AllocOp::attachInterface<DefaultAllocationInterface>(*ctx);
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memref::AllocaOp::attachInterface<
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DefaultAutomaticAllocationHoistingInterface>(*ctx);
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memref::ReallocOp::attachInterface<DefaultReallocationInterface>(*ctx);
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});
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}
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