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//===- Operator.cpp - Operator class --------------------------------------===//
//
// Copyright 2019 The MLIR Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// =============================================================================
//
// Operator wrapper to simplify using TableGen Record defining a MLIR Op.
//
//===----------------------------------------------------------------------===//
#include "mlir/TableGen/Operator.h"
#include "mlir/TableGen/Predicate.h"
#include "mlir/TableGen/Type.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
using namespace mlir;
using llvm::DagInit;
using llvm::DefInit;
using llvm::Record;
tblgen::Operator::Operator(const llvm::Record &def) : def(def) {
SplitString(def.getName(), splittedDefName, "_");
populateOperandsAndAttributes();
}
const SmallVectorImpl<StringRef> &tblgen::Operator::getSplitDefName() const {
return splittedDefName;
}
StringRef tblgen::Operator::getOperationName() const {
return def.getValueAsString("opName");
}
StringRef tblgen::Operator::getCppClassName() const {
return getSplitDefName().back();
}
std::string tblgen::Operator::getQualCppClassName() const {
return llvm::join(getSplitDefName(), "::");
}
int tblgen::Operator::getNumResults() const {
DagInit *results = def.getValueAsDag("results");
return results->getNumArgs();
}
tblgen::Type tblgen::Operator::getResultType(int index) const {
DagInit *results = def.getValueAsDag("results");
return Type(cast<DefInit>(results->getArg(index)));
}
StringRef tblgen::Operator::getResultName(int index) const {
DagInit *results = def.getValueAsDag("results");
return results->getArgNameStr(index);
}
int tblgen::Operator::getNumNativeAttributes() const {
return derivedAttrStart - nativeAttrStart;
}
const tblgen::NamedAttribute &tblgen::Operator::getAttribute(int index) const {
return attributes[index];
}
StringRef tblgen::Operator::getArgName(int index) const {
DagInit *argumentValues = def.getValueAsDag("arguments");
return argumentValues->getArgName(index)->getValue();
}
auto tblgen::Operator::attribute_begin() -> attribute_iterator {
return attributes.begin();
}
auto tblgen::Operator::attribute_end() -> attribute_iterator {
return attributes.end();
}
auto tblgen::Operator::getAttributes()
-> llvm::iterator_range<attribute_iterator> {
return {attribute_begin(), attribute_end()};
}
auto tblgen::Operator::operand_begin() -> operand_iterator {
return operands.begin();
}
auto tblgen::Operator::operand_end() -> operand_iterator {
return operands.end();
}
auto tblgen::Operator::getOperands() -> llvm::iterator_range<operand_iterator> {
return {operand_begin(), operand_end()};
}
auto tblgen::Operator::getArg(int index) -> Argument {
if (index < nativeAttrStart)
return {&operands[index]};
return {&attributes[index - nativeAttrStart]};
}
void tblgen::Operator::populateOperandsAndAttributes() {
auto &recordKeeper = def.getRecords();
auto attrClass = recordKeeper.getClass("Attr");
auto derivedAttrClass = recordKeeper.getClass("DerivedAttr");
derivedAttrStart = -1;
// The argument ordering is operands, native attributes, derived
// attributes.
DagInit *argumentValues = def.getValueAsDag("arguments");
unsigned i = 0;
// Handle operands.
for (unsigned e = argumentValues->getNumArgs(); i != e; ++i) {
auto arg = argumentValues->getArg(i);
auto givenName = argumentValues->getArgNameStr(i);
auto argDefInit = dyn_cast<DefInit>(arg);
if (!argDefInit)
PrintFatalError(def.getLoc(),
Twine("undefined type for argument ") + Twine(i));
Record *argDef = argDefInit->getDef();
if (argDef->isSubClassOf(attrClass))
break;
operands.push_back(Operand{givenName, Type(argDefInit)});
}
// Handle native attributes.
nativeAttrStart = i;
for (unsigned e = argumentValues->getNumArgs(); i != e; ++i) {
auto arg = argumentValues->getArg(i);
auto givenName = argumentValues->getArgNameStr(i);
Record *argDef = cast<DefInit>(arg)->getDef();
if (!argDef->isSubClassOf(attrClass))
PrintFatalError(def.getLoc(),
Twine("expected attribute as argument ") + Twine(i));
if (givenName.empty())
PrintFatalError(argDef->getLoc(), "attributes must be named");
bool isDerived = argDef->isSubClassOf(derivedAttrClass);
if (isDerived)
PrintFatalError(def.getLoc(),
"derived attributes not allowed in argument list");
attributes.push_back({givenName, Attribute(argDef)});
}
// Handle derived attributes.
derivedAttrStart = i;
for (const auto &val : def.getValues()) {
if (auto *record = dyn_cast<llvm::RecordRecTy>(val.getType())) {
if (!record->isSubClassOf(attrClass))
continue;
if (!record->isSubClassOf(derivedAttrClass))
PrintFatalError(def.getLoc(),
"unexpected Attr where only DerivedAttr is allowed");
if (record->getClasses().size() != 1) {
PrintFatalError(
def.getLoc(),
"unsupported attribute modelling, only single class expected");
}
attributes.push_back(
{cast<llvm::StringInit>(val.getNameInit())->getValue(),
Attribute(cast<DefInit>(val.getValue()))});
}
}
}
bool tblgen::Operator::hasDescription() const {
return def.getValue("description") != nullptr;
}
StringRef tblgen::Operator::getDescription() const {
return def.getValueAsString("description");
}
bool tblgen::Operator::hasSummary() const {
return def.getValue("summary") != nullptr;
}
StringRef tblgen::Operator::getSummary() const {
return def.getValueAsString("summary");
}
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