mirror of https://github.com/llvm/torch-mlir
85 lines
3.2 KiB
C++
85 lines
3.2 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 "PassDetail.h"
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#include "mlir/Dialect/Linalg/IR/LinalgOps.h"
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#include "mlir/Dialect/Math/IR/Math.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/IR/OpDefinition.h"
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#include "mlir/Transforms/DialectConversion.h"
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#include "npcomp/Backend/Common/Passes.h"
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#include "mlir/IR/BuiltinOps.h"
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using namespace mlir;
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using namespace mlir::NPCOMP;
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using namespace mlir::NPCOMP::CommonBackend;
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namespace {
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class VerifyBackendContractPass
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: public VerifyBackendContractBase<VerifyBackendContractPass> {
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void runOnOperation() override {
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MLIRContext *context = &getContext();
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auto module = getOperation();
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TypeConverter converter;
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converter.addConversion([](RankedTensorType type) -> Type {
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if (BaseMemRefType::isValidElementType(type.getElementType()))
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return type;
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return nullptr;
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});
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TypeConverter scalarConverter;
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for (TypeConverter *c : {&converter, &scalarConverter}) {
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c->addConversion([](FloatType type) { return type; });
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c->addConversion([](IntegerType type) { return type; });
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c->addConversion([](IndexType type) { return type; });
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}
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auto opHasLegalTypes = [&](Operation *op) { return converter.isLegal(op); };
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auto isLegalScalarOp = [&](Operation *op) {
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// We recognize basic scalar ops by them having the trait "Elementwise",
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// even though we don't expect them to operate on tensors.
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return scalarConverter.isLegal(op) &&
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op->hasTrait<OpTrait::Elementwise>();
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};
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ConversionTarget target(*context);
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// Structural operations.
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target.addDynamicallyLegalOp<ModuleOp, FuncOp, ReturnOp>(opHasLegalTypes);
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// Basic scalar operations.
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target.addDynamicallyLegalDialect<StandardOpsDialect>(isLegalScalarOp);
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target.addDynamicallyLegalDialect<math::MathDialect>(isLegalScalarOp);
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// Tensor operations should go through linalg and the tensor dialect.
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target.addDynamicallyLegalDialect<linalg::LinalgDialect>(opHasLegalTypes);
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target.addDynamicallyLegalDialect<tensor::TensorDialect>(opHasLegalTypes);
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// DimOp is used to query tensor sizes.
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target.addDynamicallyLegalOp<memref::DimOp>(opHasLegalTypes);
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// AssertOp is used to terminate the program for error guards.
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target.addLegalOp<AssertOp>();
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// ConstantOp is used for tensors and for scalars.
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target.addDynamicallyLegalOp<ConstantOp>(opHasLegalTypes);
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RewritePatternSet patterns(context);
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if (failed(applyFullConversion(module, target, std::move(patterns)))) {
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module.emitError()
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<< "Module does not conform to npcomp's backend contract. See "
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"dialect conversion legality information above.";
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return signalPassFailure();
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}
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}
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};
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} // namespace
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std::unique_ptr<OperationPass<ModuleOp>>
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mlir::NPCOMP::CommonBackend::createVerifyBackendContractPass() {
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return std::make_unique<VerifyBackendContractPass>();
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}
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