327fa06a6b
Original-commit: flang-compiler/f18@c5561646ea Reviewed-on: https://github.com/flang-compiler/f18/pull/334 Tree-same-pre-rewrite: false
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
// Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef FORTRAN_FIR_BASICBLOCK_H_
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#define FORTRAN_FIR_BASICBLOCK_H_
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#include "region.h"
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#include <iostream>
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namespace Fortran::FIR {
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class Region;
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class Statement;
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class BasicBlock final : public llvm::ilist_node<BasicBlock>,
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public ChildMixin<BasicBlock, Region>,
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public Value_impl {
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public:
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using StatementListType = llvm::iplist<Statement>;
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using iterator = StatementListType::iterator;
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using const_iterator = StatementListType::const_iterator;
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using reverse_iterator = StatementListType::reverse_iterator;
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using const_reverse_iterator = StatementListType::const_reverse_iterator;
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BasicBlock(const BasicBlock &) = delete;
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BasicBlock &operator=(const BasicBlock &) = delete;
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~BasicBlock();
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// callback to allow general access to contained sublist(s)
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StatementListType &getSublist(Statement *) { return Statements(); }
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void insertBefore(Statement *stmt, Statement *before = nullptr);
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static BasicBlock *Create(
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Region *parentRegion, BasicBlock *insertBefore = nullptr) {
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return new BasicBlock(parentRegion, insertBefore);
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}
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const Statement *terminator() const;
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Statement *terminator() {
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return const_cast<Statement *>(
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const_cast<const BasicBlock *>(this)->terminator());
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}
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void SetRegion(Region *region) { parent = region; }
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Region *GetRegion() const { return parent; }
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void addPred(BasicBlock *bb);
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std::vector<BasicBlock *> &preds() { return preds_; }
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StatementListType &Statements() { return statementList_; }
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BasicBlock *SplitEdge(BasicBlock *toBlock) { return nullptr; }
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private:
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StatementListType statementList_;
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std::vector<BasicBlock *> preds_;
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explicit BasicBlock(Region *parentRegion, BasicBlock *insertBefore);
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};
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inline std::list<BasicBlock *> pred_list(BasicBlock &block) {
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return std::list<BasicBlock *>{block.preds().begin(), block.preds().end()};
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}
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}
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#endif
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