llvm-project/mlir/lib/IR/IntegerSet.cpp

//===- IntegerSet.cpp - MLIR Integer Set 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.
// =============================================================================

#include "mlir/IR/IntegerSet.h"
#include "IntegerSetDetail.h"
#include "mlir/IR/AffineExpr.h"

using namespace mlir;
using namespace mlir::detail;

unsigned IntegerSet::getNumDims() const { return set->dimCount; }
unsigned IntegerSet::getNumSymbols() const { return set->symbolCount; }
unsigned IntegerSet::getNumOperands() const {
  return set->dimCount + set->symbolCount;
}
unsigned IntegerSet::getNumConstraints() const { return set->numConstraints; }

ArrayRef<AffineExpr> IntegerSet::getConstraints() const {
  return set->constraints;
}

AffineExpr IntegerSet::getConstraint(unsigned idx) const {
  return getConstraints()[idx];
}

/// Returns the equality bits, which specify whether each of the constraints
/// is an equality or inequality.
ArrayRef<bool> IntegerSet::getEqFlags() const { return set->eqFlags; }

/// Returns true if the idx^th constraint is an equality, false if it is an
/// inequality.
bool IntegerSet::isEq(unsigned idx) const { return getEqFlags()[idx]; }