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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
// Copyright (c) 2016- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#pragma once
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#include "Core/MIPS/IR/IRInst.h"
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bool IRReadsFromFPR(const IRInst &inst, int reg, bool *directly = nullptr);
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bool IRReadsFromGPR(const IRInst &inst, int reg, bool *directly = nullptr);
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bool IRWritesToGPR(const IRInst &inst, int reg);
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bool IRWritesToFPR(const IRInst &inst, int reg);
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int IRDestGPR(const IRInst &inst);
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int IRDestFPRs(const IRInst &inst, IRReg regs[4]);
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int IRReadsFromGPRs(const IRInst &inst, IRReg regs[4]);
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int IRReadsFromFPRs(const IRInst &inst, IRReg regs[16]);
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struct IRSituation {
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int lookaheadCount;
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int currentIndex;
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const IRInst *instructions;
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int numInstructions;
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};
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enum class IRUsage {
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UNKNOWN,
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UNUSED,
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READ,
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WRITE,
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CLOBBERED,
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};
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IRUsage IRNextGPRUsage(int gpr, const IRSituation &info);
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IRUsage IRNextFPRUsage(int fpr, const IRSituation &info);
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