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//===- IRDLVerifiers.cpp - IRDL verifiers ------------------------- C++ -*-===//
//
// This file is licensed 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
//
//===----------------------------------------------------------------------===//
//
// Verifiers for objects declared by IRDL.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/IRDL/IRDLVerifiers.h"
#include "mlir/IR/Attributes.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/Diagnostics.h"
#include "mlir/IR/ExtensibleDialect.h"
#include "mlir/IR/Location.h"
#include "mlir/IR/Region.h"
#include "mlir/IR/Value.h"
using namespace mlir;
using namespace mlir::irdl;
ConstraintVerifier::ConstraintVerifier(
ArrayRef<std::unique_ptr<Constraint>> constraints)
: constraints(constraints), assigned() {
assigned.resize(this->constraints.size());
}
LogicalResult
ConstraintVerifier::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr, unsigned variable) {
assert(variable < constraints.size() && "invalid constraint variable");
// If the variable is already assigned, check that the attribute is the same.
if (assigned[variable].has_value()) {
if (attr == assigned[variable].value()) {
return success();
}
if (emitError)
return emitError() << "expected '" << assigned[variable].value()
<< "' but got '" << attr << "'";
return failure();
}
// Otherwise, check the constraint and assign the attribute to the variable.
LogicalResult result = constraints[variable]->verify(emitError, attr, *this);
if (succeeded(result))
assigned[variable] = attr;
return result;
}
LogicalResult IsConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr,
ConstraintVerifier &context) const {
if (attr == expectedAttribute)
return success();
if (emitError)
return emitError() << "expected '" << expectedAttribute << "' but got '"
<< attr << "'";
return failure();
}
LogicalResult
BaseAttrConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr, ConstraintVerifier &context) const {
if (attr.getTypeID() == baseTypeID)
return success();
if (emitError)
return emitError() << "expected base attribute '" << baseName
<< "' but got '" << attr.getAbstractAttribute().getName()
<< "'";
return failure();
}
LogicalResult
BaseTypeConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr, ConstraintVerifier &context) const {
auto typeAttr = dyn_cast<TypeAttr>(attr);
if (!typeAttr) {
if (emitError)
return emitError() << "expected type, got attribute '" << attr;
return failure();
}
Type type = typeAttr.getValue();
if (type.getTypeID() == baseTypeID)
return success();
if (emitError)
return emitError() << "expected base type '" << baseName << "' but got '"
<< type.getAbstractType().getName() << "'";
return failure();
}
LogicalResult DynParametricAttrConstraint::verify(
function_ref<InFlightDiagnostic()> emitError, Attribute attr,
ConstraintVerifier &context) const {
// Check that the base is the expected one.
auto dynAttr = dyn_cast<DynamicAttr>(attr);
if (!dynAttr || dynAttr.getAttrDef() != attrDef) {
if (emitError) {
StringRef dialectName = attrDef->getDialect()->getNamespace();
StringRef attrName = attrDef->getName();
return emitError() << "expected base attribute '" << attrName << '.'
<< dialectName << "' but got '" << attr << "'";
}
return failure();
}
// Check that the parameters satisfy the constraints.
ArrayRef<Attribute> params = dynAttr.getParams();
if (params.size() != constraints.size()) {
if (emitError) {
StringRef dialectName = attrDef->getDialect()->getNamespace();
StringRef attrName = attrDef->getName();
emitError() << "attribute '" << dialectName << "." << attrName
<< "' expects " << params.size() << " parameters but got "
<< constraints.size();
}
return failure();
}
for (size_t i = 0, s = params.size(); i < s; i++)
if (failed(context.verify(emitError, params[i], constraints[i])))
return failure();
return success();
}
LogicalResult DynParametricTypeConstraint::verify(
function_ref<InFlightDiagnostic()> emitError, Attribute attr,
ConstraintVerifier &context) const {
// Check that the base is a TypeAttr.
auto typeAttr = dyn_cast<TypeAttr>(attr);
if (!typeAttr) {
if (emitError)
return emitError() << "expected type, got attribute '" << attr;
return failure();
}
// Check that the type base is the expected one.
auto dynType = dyn_cast<DynamicType>(typeAttr.getValue());
if (!dynType || dynType.getTypeDef() != typeDef) {
if (emitError) {
StringRef dialectName = typeDef->getDialect()->getNamespace();
StringRef attrName = typeDef->getName();
return emitError() << "expected base type '" << dialectName << '.'
<< attrName << "' but got '" << attr << "'";
}
return failure();
}
// Check that the parameters satisfy the constraints.
ArrayRef<Attribute> params = dynType.getParams();
if (params.size() != constraints.size()) {
if (emitError) {
StringRef dialectName = typeDef->getDialect()->getNamespace();
StringRef attrName = typeDef->getName();
emitError() << "attribute '" << dialectName << "." << attrName
<< "' expects " << params.size() << " parameters but got "
<< constraints.size();
}
return failure();
}
for (size_t i = 0, s = params.size(); i < s; i++)
if (failed(context.verify(emitError, params[i], constraints[i])))
return failure();
return success();
}
LogicalResult
AnyOfConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr, ConstraintVerifier &context) const {
for (unsigned constr : constraints) {
// We do not pass the `emitError` here, since we want to emit an error
// only if none of the constraints are satisfied.
if (succeeded(context.verify({}, attr, constr))) {
return success();
}
}
if (emitError)
return emitError() << "'" << attr << "' does not satisfy the constraint";
return failure();
}
LogicalResult
AllOfConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr, ConstraintVerifier &context) const {
for (unsigned constr : constraints) {
if (failed(context.verify(emitError, attr, constr))) {
return failure();
}
}
return success();
}
LogicalResult
AnyAttributeConstraint::verify(function_ref<InFlightDiagnostic()> emitError,
Attribute attr,
ConstraintVerifier &context) const {
return success();
}
LogicalResult RegionConstraint::verify(mlir::Region ®ion,
ConstraintVerifier &constraintContext) {
const auto emitError = [parentOp = region.getParentOp()](mlir::Location loc) {
return [loc, parentOp] {
InFlightDiagnostic diag = mlir::emitError(loc);
// If we already have been given location of the parent operation, which
// might happen when the region location is passed, we do not want to
// produce the note on the same location
if (loc != parentOp->getLoc())
diag.attachNote(parentOp->getLoc()).append("see the operation");
return diag;
};
};
if (blockCount.has_value() && *blockCount != region.getBlocks().size()) {
return emitError(region.getLoc())()
<< "expected region " << region.getRegionNumber() << " to have "
<< *blockCount << " block(s) but got " << region.getBlocks().size();
}
if (argumentConstraints.has_value()) {
auto actualArgs = region.getArguments();
if (actualArgs.size() != argumentConstraints->size()) {
const mlir::Location firstArgLoc =
actualArgs.empty() ? region.getLoc() : actualArgs.front().getLoc();
return emitError(firstArgLoc)()
<< "expected region " << region.getRegionNumber() << " to have "
<< argumentConstraints->size() << " arguments but got "
<< actualArgs.size();
}
for (auto [arg, constraint] : llvm::zip(actualArgs, *argumentConstraints)) {
mlir::Attribute type = TypeAttr::get(arg.getType());
if (failed(constraintContext.verify(emitError(arg.getLoc()), type,
constraint))) {
return failure();
}
}
}
return success();
}
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