2025-07-02 09:32:39 -07:00

149 lines
4.5 KiB
C++

//===- Attribute.cpp - Attribute wrapper class ----------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Attribute wrapper to simplify using TableGen Record defining a MLIR
// Attribute.
//
//===----------------------------------------------------------------------===//
#include "mlir/TableGen/Operator.h"
#include "llvm/TableGen/Record.h"
using namespace mlir;
using namespace mlir::tblgen;
using llvm::DefInit;
using llvm::Init;
using llvm::Record;
using llvm::StringInit;
// Returns the initializer's value as string if the given TableGen initializer
// is a code or string initializer. Returns the empty StringRef otherwise.
static StringRef getValueAsString(const Init *init) {
if (const auto *str = dyn_cast<StringInit>(init))
return str->getValue().trim();
return {};
}
bool AttrConstraint::isSubClassOf(StringRef className) const {
return def->isSubClassOf(className);
}
Attribute::Attribute(const Record *record) : AttrConstraint(record) {
assert(record->isSubClassOf("Attr") &&
"must be subclass of TableGen 'Attr' class");
}
Attribute::Attribute(const DefInit *init) : Attribute(init->getDef()) {}
bool Attribute::isDerivedAttr() const { return isSubClassOf("DerivedAttr"); }
bool Attribute::isTypeAttr() const { return isSubClassOf("TypeAttrBase"); }
bool Attribute::isSymbolRefAttr() const {
StringRef defName = def->getName();
if (defName == "SymbolRefAttr" || defName == "FlatSymbolRefAttr")
return true;
return isSubClassOf("SymbolRefAttr") || isSubClassOf("FlatSymbolRefAttr");
}
bool Attribute::isEnumAttr() const { return isSubClassOf("EnumAttrInfo"); }
StringRef Attribute::getStorageType() const {
const auto *init = def->getValueInit("storageType");
auto type = getValueAsString(init);
if (type.empty())
return "::mlir::Attribute";
return type;
}
StringRef Attribute::getReturnType() const {
const auto *init = def->getValueInit("returnType");
return getValueAsString(init);
}
// Return the type constraint corresponding to the type of this attribute, or
// std::nullopt if this is not a TypedAttr.
std::optional<Type> Attribute::getValueType() const {
if (const auto *defInit = dyn_cast<DefInit>(def->getValueInit("valueType")))
return Type(defInit->getDef());
return std::nullopt;
}
StringRef Attribute::getConvertFromStorageCall() const {
const auto *init = def->getValueInit("convertFromStorage");
return getValueAsString(init);
}
bool Attribute::isConstBuildable() const {
const auto *init = def->getValueInit("constBuilderCall");
return !getValueAsString(init).empty();
}
StringRef Attribute::getConstBuilderTemplate() const {
const auto *init = def->getValueInit("constBuilderCall");
return getValueAsString(init);
}
Attribute Attribute::getBaseAttr() const {
if (const auto *defInit = dyn_cast<DefInit>(def->getValueInit("baseAttr"))) {
return Attribute(defInit).getBaseAttr();
}
return *this;
}
bool Attribute::hasDefaultValue() const {
const auto *init = def->getValueInit("defaultValue");
return !getValueAsString(init).empty();
}
StringRef Attribute::getDefaultValue() const {
const auto *init = def->getValueInit("defaultValue");
return getValueAsString(init);
}
bool Attribute::isOptional() const { return def->getValueAsBit("isOptional"); }
StringRef Attribute::getAttrDefName() const {
if (def->isAnonymous()) {
return getBaseAttr().def->getName();
}
return def->getName();
}
StringRef Attribute::getDerivedCodeBody() const {
assert(isDerivedAttr() && "only derived attribute has 'body' field");
return def->getValueAsString("body");
}
Dialect Attribute::getDialect() const {
const llvm::RecordVal *record = def->getValue("dialect");
if (record && record->getValue()) {
if (const DefInit *init = dyn_cast<DefInit>(record->getValue()))
return Dialect(init->getDef());
}
return Dialect(nullptr);
}
const Record &Attribute::getDef() const { return *def; }
ConstantAttr::ConstantAttr(const DefInit *init) : def(init->getDef()) {
assert(def->isSubClassOf("ConstantAttr") &&
"must be subclass of TableGen 'ConstantAttr' class");
}
Attribute ConstantAttr::getAttribute() const {
return Attribute(def->getValueAsDef("attr"));
}
StringRef ConstantAttr::getConstantValue() const {
return def->getValueAsString("value");
}
const char * ::mlir::tblgen::inferTypeOpInterface = "InferTypeOpInterface";