49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
//===- BufferViewFlowOpInterfaceImpl.cpp - Buffer View Flow Analysis ------===//
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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/BufferViewFlowOpInterfaceImpl.h"
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#include "mlir/Dialect/Bufferization/IR/BufferViewFlowOpInterface.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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using namespace mlir;
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using namespace mlir::bufferization;
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namespace mlir {
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namespace memref {
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namespace {
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struct ReallocOpInterface
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: public BufferViewFlowOpInterface::ExternalModel<ReallocOpInterface,
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ReallocOp> {
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void populateDependencies(
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Operation *op,
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const RegisterDependenciesFn ®isterDependenciesFn) const {
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auto reallocOp = cast<ReallocOp>(op);
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// memref.realloc may return the source operand.
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registerDependenciesFn(reallocOp.getSource(), reallocOp.getResult());
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}
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bool mayBeTerminalBuffer(Operation *op, Value value) const {
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// The return value of memref.realloc is a terminal buffer because the op
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// may return a newly allocated buffer.
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return true;
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}
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};
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} // namespace
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} // namespace memref
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} // namespace mlir
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void memref::registerBufferViewFlowOpInterfaceExternalModels(
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DialectRegistry ®istry) {
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registry.addExtension(+[](MLIRContext *ctx, memref::MemRefDialect *dialect) {
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ReallocOp::attachInterface<ReallocOpInterface>(*ctx);
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});
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}
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