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77 lines
2.3 KiB
77 lines
2.3 KiB
#ifndef _SYSYF_BASICBLOCK_H_
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#define _SYSYF_BASICBLOCK_H_
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#include "Value.h"
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#include "Instruction.h"
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#include "Module.h"
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#include "Function.h"
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#include <list>
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#include <set>
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#include <string>
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class Function;
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class Instruction;
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class Module;
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class BasicBlock : public Value
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{
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public:
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static BasicBlock *create(Module *m, const std::string &name ,
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Function *parent ) {
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auto prefix = name.empty() ? "" : "label_";
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return new BasicBlock(m, prefix + name, parent);
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}
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// return parent, or null if none.
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Function *get_parent() { return parent_; }
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Module *get_module();
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/****************api about cfg****************/
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std::list<BasicBlock *> &get_pre_basic_blocks() { return pre_bbs_; }
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std::list<BasicBlock *> &get_succ_basic_blocks() { return succ_bbs_; }
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void add_pre_basic_block(BasicBlock *bb) { pre_bbs_.push_back(bb); }
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void add_succ_basic_block(BasicBlock *bb) { succ_bbs_.push_back(bb); }
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void remove_pre_basic_block(BasicBlock *bb) { pre_bbs_.remove(bb); }
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void remove_succ_basic_block(BasicBlock *bb) { succ_bbs_.remove(bb); }
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/****************api about cfg****************/
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/// Returns the terminator instruction if the block is well formed or null
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/// if the block is not well formed.
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const Instruction *get_terminator() const;
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Instruction *get_terminator() {
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return const_cast<Instruction *>(
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static_cast<const BasicBlock *>(this)->get_terminator());
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}
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void add_instruction(Instruction *instr);
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void add_instruction(std::list<Instruction *>::iterator instr_pos, Instruction *instr);
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void add_instr_begin(Instruction *instr);
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std::list<Instruction *>::iterator find_instruction(Instruction *instr);
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void delete_instr(Instruction *instr);
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bool empty() { return instr_list_.empty(); }
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int get_num_of_instr() { return instr_list_.size(); }
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std::list<Instruction *> &get_instructions() { return instr_list_; }
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void erase_from_parent();
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virtual std::string print() override;
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private:
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explicit BasicBlock(Module *m, const std::string &name ,
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Function *parent );
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std::list<BasicBlock *> pre_bbs_;
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std::list<BasicBlock *> succ_bbs_;
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std::list<Instruction *> instr_list_;
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Function *parent_;
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};
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#endif // _SYSYF_BASICBLOCK_H_
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