fccbdcb15a
This is a follow-up PR of #169045 and the second part of #179086. In #179086, we added support for defining regions in Python-defined ops, but its usefulness was quite limited because we still couldn’t mark an op as a `Terminator` or `NoTerminator`. In this PR, we port the `DynamicOpTrait` (introduced on the C++ side for `DynamicDialect` in #177735) to Python, so we can dynamically attach traits to Python-defined ops.
88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
//===- ExtensibleDialect - C API for MLIR Extensible Dialect --------------===//
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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 "mlir-c/ExtensibleDialect.h"
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#include "mlir/CAPI/IR.h"
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#include "mlir/CAPI/Support.h"
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#include "mlir/IR/ExtensibleDialect.h"
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#include "mlir/IR/OperationSupport.h"
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using namespace mlir;
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DEFINE_C_API_PTR_METHODS(MlirDynamicOpTrait, DynamicOpTrait)
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bool mlirDynamicOpTraitAttach(MlirDynamicOpTrait dynamicOpTrait,
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MlirStringRef opName, MlirContext context) {
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std::optional<RegisteredOperationName> opNameFound =
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RegisteredOperationName::lookup(unwrap(opName), unwrap(context));
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assert(opNameFound && "operation name must be registered in the context");
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// The original getImpl() is protected, so we create a small helper struct
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// here.
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struct RegisteredOperationNameWithImpl : RegisteredOperationName {
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Impl *getImpl() { return RegisteredOperationName::getImpl(); }
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};
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OperationName::Impl *impl =
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static_cast<RegisteredOperationNameWithImpl &>(*opNameFound).getImpl();
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std::unique_ptr<DynamicOpTrait> trait(unwrap(dynamicOpTrait));
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// TODO: we should check whether the `impl` is a DynamicOpDefinition here
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// via llvm-style RTTI.
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return static_cast<DynamicOpDefinition *>(impl)->addTrait(std::move(trait));
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}
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MlirDynamicOpTrait mlirDynamicOpTraitGetIsTerminator() {
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return wrap(new DynamicOpTraits::IsTerminator());
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}
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MlirDynamicOpTrait mlirDynamicOpTraitGetNoTerminator() {
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return wrap(new DynamicOpTraits::NoTerminator());
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}
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void mlirDynamicOpTraitDestroy(MlirDynamicOpTrait dynamicOpTrait) {
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delete unwrap(dynamicOpTrait);
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}
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namespace mlir {
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class ExternalDynamicOpTrait : public DynamicOpTrait {
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public:
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ExternalDynamicOpTrait(TypeID typeID, MlirDynamicOpTraitCallbacks callbacks,
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void *userData)
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: typeID(typeID), callbacks(callbacks), userData(userData) {
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if (callbacks.construct)
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callbacks.construct(userData);
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}
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~ExternalDynamicOpTrait() {
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if (callbacks.destruct)
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callbacks.destruct(userData);
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}
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LogicalResult verifyTrait(Operation *op) const override {
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return unwrap(callbacks.verifyTrait(wrap(op), userData));
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};
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LogicalResult verifyRegionTrait(Operation *op) const override {
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return unwrap(callbacks.verifyRegionTrait(wrap(op), userData));
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};
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TypeID getTypeID() const override { return typeID; };
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private:
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TypeID typeID;
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MlirDynamicOpTraitCallbacks callbacks;
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void *userData;
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};
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} // namespace mlir
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MlirDynamicOpTrait mlirDynamicOpTraitCreate(
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MlirTypeID typeID, MlirDynamicOpTraitCallbacks callbacks, void *userData) {
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return wrap(
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new mlir::ExternalDynamicOpTrait(unwrap(typeID), callbacks, userData));
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}
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