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//===- AllocationOpInterfaceImpl.cpp - Impl. of AllocationOpInterface -----===//
//
// 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/MemRef/Transforms/AllocationOpInterfaceImpl.h"
#include "mlir/Dialect/Bufferization/IR/AllocationOpInterface.h"
#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/IR/Dialect.h"
#include "mlir/IR/Operation.h"
using namespace mlir;
namespace {
struct DefaultAllocationInterface
: public bufferization::AllocationOpInterface::ExternalModel<
DefaultAllocationInterface, memref::AllocOp> {
static std::optional<Operation *> buildDealloc(OpBuilder &builder,
Value alloc) {
return builder.create<memref::DeallocOp>(alloc.getLoc(), alloc)
.getOperation();
}
static std::optional<Value> buildClone(OpBuilder &builder, Value alloc) {
return builder.create<bufferization::CloneOp>(alloc.getLoc(), alloc)
.getResult();
}
static ::mlir::HoistingKind getHoistingKind() {
return HoistingKind::Loop | HoistingKind::Block;
}
static ::std::optional<::mlir::Operation *>
buildPromotedAlloc(OpBuilder &builder, Value alloc) {
Operation *definingOp = alloc.getDefiningOp();
return builder.create<memref::AllocaOp>(
definingOp->getLoc(), cast<MemRefType>(definingOp->getResultTypes()[0]),
definingOp->getOperands(), definingOp->getAttrs());
}
};
struct DefaultAutomaticAllocationHoistingInterface
: public bufferization::AllocationOpInterface::ExternalModel<
DefaultAutomaticAllocationHoistingInterface, memref::AllocaOp> {
static ::mlir::HoistingKind getHoistingKind() { return HoistingKind::Loop; }
};
struct DefaultReallocationInterface
: public bufferization::AllocationOpInterface::ExternalModel<
DefaultAllocationInterface, memref::ReallocOp> {
static std::optional<Operation *> buildDealloc(OpBuilder &builder,
Value realloc) {
return builder.create<memref::DeallocOp>(realloc.getLoc(), realloc)
.getOperation();
}
};
} // namespace
void mlir::memref::registerAllocationOpInterfaceExternalModels(
DialectRegistry ®istry) {
registry.addExtension(+[](MLIRContext *ctx, memref::MemRefDialect *dialect) {
memref::AllocOp::attachInterface<DefaultAllocationInterface>(*ctx);
memref::AllocaOp::attachInterface<
DefaultAutomaticAllocationHoistingInterface>(*ctx);
memref::ReallocOp::attachInterface<DefaultReallocationInterface>(*ctx);
});
}
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