| //===- RegionUtils.h - Region-related transformation utilities --*- C++ -*-===// |
| // |
| // 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. |
| // ============================================================================= |
| |
| #ifndef MLIR_TRANSFORMS_REGIONUTILS_H_ |
| #define MLIR_TRANSFORMS_REGIONUTILS_H_ |
| |
| #include "mlir/IR/Region.h" |
| #include "mlir/IR/Value.h" |
| |
| #include "llvm/ADT/SetVector.h" |
| |
| namespace mlir { |
| |
| /// Check if all values in the provided range are defined above the `limit` |
| /// region. That is, if they are defined in a region that is a proper ancestor |
| /// of `limit`. |
| template <typename Range> |
| bool areValuesDefinedAbove(Range values, Region &limit) { |
| for (Value *v : values) |
| if (!v->getParentRegion()->isProperAncestor(&limit)) |
| return false; |
| return true; |
| } |
| |
| /// Replace all uses of `orig` within the given region with `replacement`. |
| void replaceAllUsesInRegionWith(Value *orig, Value *replacement, |
| Region ®ion); |
| |
| /// Fill `values` with a list of values defined at the ancestors of the `limit` |
| /// region and used within `region` or its descendants. |
| void getUsedValuesDefinedAbove(Region ®ion, Region &limit, |
| llvm::SetVector<Value *> &values); |
| |
| } // namespace mlir |
| |
| #endif // MLIR_TRANSFORMS_REGIONUTILS_H_ |