57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
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/* This file is part of the dynarmic project.
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* Copyright (c) 2016 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#pragma once
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#include <memory>
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#include <string>
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#include <boost/optional.hpp>
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#include "common/common_types.h"
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#include "common/intrusive_list.h"
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#include "common/memory_pool.h"
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#include "frontend/arm_types.h"
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#include "frontend/ir/microinstruction.h"
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#include "frontend/ir/terminal.h"
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namespace Dynarmic {
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namespace IR {
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/**
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* A basic block. It consists of zero or more instructions followed by exactly one terminal.
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* Note that this is a linear IR and not a pure tree-based IR: i.e.: there is an ordering to
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* the microinstructions. This only matters before chaining is done in order to correctly
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* order memory accesses.
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*/
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class Block final {
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public:
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explicit Block(const Arm::LocationDescriptor& location) : location(location) {}
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/// Description of the starting location of this block
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Arm::LocationDescriptor location;
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/// Conditional to pass in order to execute this block
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Arm::Cond cond = Arm::Cond::AL;
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/// Block to execute next if `cond` did not pass.
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boost::optional<Arm::LocationDescriptor> cond_failed = {};
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/// List of instructions in this block.
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Common::IntrusiveList<Inst> instructions;
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/// Memory pool for instruction list
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std::unique_ptr<Common::Pool> instruction_alloc_pool = std::make_unique<Common::Pool>(sizeof(Inst), 4096);
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/// Terminal instruction of this block.
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Terminal terminal = Term::Invalid{};
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/// Number of cycles this block takes to execute.
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size_t cycle_count = 0;
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};
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/// Returns a string representation of the contents of block. Intended for debugging.
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std::string DumpBlock(const IR::Block& block);
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} // namespace IR
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} // namespace Dynarmic
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