131 lines
5.6 KiB
C++
131 lines
5.6 KiB
C++
//===----------------------------------------------------------------------===//
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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/Affine/IR/AffineOps.h"
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#include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.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/Dialect/Tensor/IR/Tensor.h"
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#include "mlir/Interfaces/FunctionInterfaces.h"
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#include "mlir/Transforms/InliningUtils.h"
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using namespace mlir;
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using namespace mlir::bufferization;
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#include "mlir/Dialect/Bufferization/IR/BufferizationOpsDialect.cpp.inc"
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/// Attribute name used to mark function arguments who's buffers can be written
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/// to during One-Shot Module Bufferize.
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constexpr const ::llvm::StringLiteral BufferizationDialect::kWritableAttrName;
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/// Attribute name used to mark the bufferization layout for region arguments
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/// during One-Shot Module Bufferize.
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constexpr const ::llvm::StringLiteral
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BufferizationDialect::kBufferLayoutAttrName;
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/// An attribute that can be attached to ops with an allocation and/or
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/// deallocation side effect. It indicates that the op is under a "manual
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/// deallocation" scheme. In the case of an allocation op, the returned
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/// value is *not* an automatically managed allocation and assigned an
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/// ownership of "false". Furthermore, only deallocation ops that are
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/// guaranteed to deallocate a buffer under "manual deallocation" are
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/// allowed to have this attribute. (Deallocation ops without this
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/// attribute are rejected by the ownership-based buffer deallocation pass.)
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constexpr const ::llvm::StringLiteral BufferizationDialect::kManualDeallocation;
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//===----------------------------------------------------------------------===//
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// Bufferization Dialect Interfaces
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//===----------------------------------------------------------------------===//
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namespace {
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struct BufferizationInlinerInterface : public DialectInlinerInterface {
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using DialectInlinerInterface::DialectInlinerInterface;
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/// Operations in Bufferization dialect are always legal to inline.
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bool isLegalToInline(Operation *, Region *, bool, IRMapping &) const final {
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return true;
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}
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};
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} // namespace
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//===----------------------------------------------------------------------===//
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// Bufferization Dialect
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//===----------------------------------------------------------------------===//
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void mlir::bufferization::BufferizationDialect::initialize() {
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addOperations<
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#define GET_OP_LIST
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#include "mlir/Dialect/Bufferization/IR/BufferizationOps.cpp.inc"
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>();
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addInterfaces<BufferizationInlinerInterface>();
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}
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LogicalResult BufferizationDialect::verifyRegionArgAttribute(
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Operation *op, unsigned /*regionIndex*/, unsigned argIndex,
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NamedAttribute attr) {
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if (attr.getName() == kWritableAttrName) {
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if (!llvm::isa<BoolAttr>(attr.getValue())) {
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return op->emitError() << "'" << kWritableAttrName
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<< "' is expected to be a boolean attribute";
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}
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if (!isa<FunctionOpInterface>(op))
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return op->emitError() << "expected '" << kWritableAttrName
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<< "' to be used on function-like operations";
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if (cast<FunctionOpInterface>(op).isExternal())
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return op->emitError() << "'" << kWritableAttrName
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<< "' is invalid on external functions";
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return success();
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}
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if (attr.getName() == kBufferAccessAttrName) {
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if (!llvm::isa<StringAttr>(attr.getValue())) {
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return op->emitError() << "'" << kBufferAccessAttrName
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<< "' is expected to be a string attribute";
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}
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StringRef str = llvm::cast<StringAttr>(attr.getValue()).getValue();
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if (str != "none" && str != "read" && str != "write" && str != "read-write")
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return op->emitError()
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<< "invalid value for '" << kBufferAccessAttrName << "'";
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if (!isa<FunctionOpInterface>(op))
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return op->emitError() << "expected '" << kBufferAccessAttrName
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<< "' to be used on function-like operations";
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return success();
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}
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if (attr.getName() == kBufferLayoutAttrName) {
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if (!llvm::isa<AffineMapAttr>(attr.getValue())) {
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return op->emitError() << "'" << kBufferLayoutAttrName
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<< "' is expected to be a affine map attribute";
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}
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if (!isa<FunctionOpInterface>(op))
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return op->emitError() << "expected '" << kBufferLayoutAttrName
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<< "' to be used on function-like operations";
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return success();
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}
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return op->emitError() << "attribute '" << kBufferLayoutAttrName
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<< "' not supported as a region arg attribute by the "
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"bufferization dialect";
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}
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LogicalResult
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BufferizationDialect::verifyOperationAttribute(Operation *op,
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NamedAttribute attr) {
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using bufferization::BufferizableOpInterface;
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if (attr.getName() == kManualDeallocation) {
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if (!mlir::hasEffect<MemoryEffects::Allocate>(op) &&
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!mlir::hasEffect<MemoryEffects::Free>(op))
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return op->emitOpError("attribute '")
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<< kManualDeallocation
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<< "' can be used only on ops that have an allocation and/or free "
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"side effect";
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return success();
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}
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return op->emitError()
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<< "attribute '" << attr.getName()
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<< "' not supported as an op attribute by the bufferization dialect";
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}
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