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1725b485eb
* Introduce a OpTrait class in C++ to wrap the TableGen definition; * Introduce PredOpTrait and rename previous usage of OpTrait to NativeOpTrait; * PredOpTrait allows specifying a trait of the operation by way of predicate on the operation. This will be used in future to create reusable set of trait building blocks in the definition of operations. E.g., indicating whether to operands have the same type and allowing locally documenting op requirements by trait composition. - Some of these building blocks could later evolve into known fixed set as LLVMs backends do, but that can be considered with more data. * Use the modelling to address one verify TODO in a very local manner. This subsumes the current custom verify specification which will be removed in a separate mechanical CL. PiperOrigin-RevId: 234827169
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
//===- OpTrait.cpp - OpTrait class ----------------------------------------===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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//
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// OpTrait wrapper to simplify using TableGen Record defining a MLIR OpTrait.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/TableGen/OpTrait.h"
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#include "mlir/TableGen/Predicate.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/FormatVariadic.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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mlir::tblgen::OpTrait mlir::tblgen::OpTrait::create(const llvm::Init *init) {
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auto def = cast<llvm::DefInit>(init)->getDef();
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if (def->isSubClassOf("PredOpTrait"))
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return OpTrait(Kind::Pred, def);
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assert(def->isSubClassOf("NativeOpTrait"));
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return OpTrait(Kind::Native, def);
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}
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mlir::tblgen::OpTrait::OpTrait(Kind kind, const llvm::Record *def)
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: def(def), kind(kind){};
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llvm::StringRef mlir::tblgen::NativeOpTrait::getTrait() const {
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return def->getValueAsString("trait");
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}
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std::string mlir::tblgen::PredOpTrait::getPredTemplate() const {
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auto pred = tblgen::Pred(def->getValueInit("pred"));
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return pred.getCondition();
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}
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llvm::StringRef mlir::tblgen::PredOpTrait::getDescription() const {
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return def->getValueAsString("desc");
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}
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