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bbfa7ef16d
This is part of the RFC for a better fold API: https://discourse.llvm.org/t/rfc-a-better-fold-api-using-more-generic-adaptors/67374 This patch implements the required foldHook changes and the TableGen machinery for generating `fold` method signatures using `FoldAdaptor` for ops, based on the value of `useFoldAPI` of the dialect. It may be one of 2 values, with convenient named constants to create a quasi enum. The new `fold` method will then be generated if `kEmitFoldAdaptorFolder` is used. Since the new `FoldAdaptor` approach is strictly better than the old signature, part of this patch updates the documentation and all example to encourage use of the new `fold` signature. Included are also tests exercising the new API, ensuring proper construction of the `FoldAdaptor` and proper generation by TableGen. Differential Revision: https://reviews.llvm.org/D140886
122 lines
3.6 KiB
C++
122 lines
3.6 KiB
C++
//===- Dialect.cpp - Dialect wrapper class --------------------------------===//
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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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//
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// Dialect wrapper to simplify using TableGen Record defining a MLIR dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/TableGen/Dialect.h"
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#include "llvm/TableGen/Error.h"
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#include "llvm/TableGen/Record.h"
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using namespace mlir;
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using namespace mlir::tblgen;
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Dialect::Dialect(const llvm::Record *def) : def(def) {
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if (def == nullptr)
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return;
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for (StringRef dialect : def->getValueAsListOfStrings("dependentDialects"))
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dependentDialects.push_back(dialect);
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}
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StringRef Dialect::getName() const { return def->getValueAsString("name"); }
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StringRef Dialect::getCppNamespace() const {
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return def->getValueAsString("cppNamespace");
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}
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std::string Dialect::getCppClassName() const {
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// Simply use the name and remove any '_' tokens.
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std::string cppName = def->getName().str();
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llvm::erase_value(cppName, '_');
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return cppName;
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}
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static StringRef getAsStringOrEmpty(const llvm::Record &record,
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StringRef fieldName) {
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if (auto *valueInit = record.getValueInit(fieldName)) {
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if (llvm::isa<llvm::StringInit>(valueInit))
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return record.getValueAsString(fieldName);
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}
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return "";
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}
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StringRef Dialect::getSummary() const {
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return getAsStringOrEmpty(*def, "summary");
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}
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StringRef Dialect::getDescription() const {
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return getAsStringOrEmpty(*def, "description");
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}
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ArrayRef<StringRef> Dialect::getDependentDialects() const {
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return dependentDialects;
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}
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std::optional<StringRef> Dialect::getExtraClassDeclaration() const {
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auto value = def->getValueAsString("extraClassDeclaration");
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return value.empty() ? std::optional<StringRef>() : value;
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}
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bool Dialect::hasCanonicalizer() const {
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return def->getValueAsBit("hasCanonicalizer");
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}
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bool Dialect::hasConstantMaterializer() const {
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return def->getValueAsBit("hasConstantMaterializer");
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}
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bool Dialect::hasNonDefaultDestructor() const {
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return def->getValueAsBit("hasNonDefaultDestructor");
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}
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bool Dialect::hasOperationAttrVerify() const {
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return def->getValueAsBit("hasOperationAttrVerify");
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}
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bool Dialect::hasRegionArgAttrVerify() const {
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return def->getValueAsBit("hasRegionArgAttrVerify");
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}
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bool Dialect::hasRegionResultAttrVerify() const {
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return def->getValueAsBit("hasRegionResultAttrVerify");
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}
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bool Dialect::hasOperationInterfaceFallback() const {
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return def->getValueAsBit("hasOperationInterfaceFallback");
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}
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bool Dialect::useDefaultAttributePrinterParser() const {
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return def->getValueAsBit("useDefaultAttributePrinterParser");
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}
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bool Dialect::useDefaultTypePrinterParser() const {
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return def->getValueAsBit("useDefaultTypePrinterParser");
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}
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bool Dialect::isExtensible() const {
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return def->getValueAsBit("isExtensible");
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}
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Dialect::FolderAPI Dialect::getFolderAPI() const {
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int64_t value = def->getValueAsInt("useFoldAPI");
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if (value < static_cast<int64_t>(FolderAPI::RawAttributes) ||
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value > static_cast<int64_t>(FolderAPI::FolderAdaptor))
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llvm::PrintFatalError(def->getLoc(),
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"Invalid value for dialect field `useFoldAPI`");
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return static_cast<FolderAPI>(value);
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}
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bool Dialect::operator==(const Dialect &other) const {
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return def == other.def;
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}
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bool Dialect::operator<(const Dialect &other) const {
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return getName() < other.getName();
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}
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