00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 #include <pch.h> 00033 00034 #include "Sim/Predictor/DepPred/RegDepPred/RegDepPredBase.h" 00035 #include "Sim/Op/Op.h" 00036 00037 using namespace Onikiri; 00038 00039 RegDepPredBase::RegDepPredBase() 00040 { 00041 } 00042 00043 RegDepPredBase::~RegDepPredBase() 00044 { 00045 } 00046 00047 00048 // WAopZbg 00049 // ResolveRegタ 00050 void RegDepPredBase::Resolve(OpIterator op) 00051 { 00052 OpInfo* opInfo = op->GetOpInfo(); 00053 int srcNum = opInfo->GetSrcNum(); 00054 for(int i = 0; i < srcNum; ++i) { 00055 int operand = opInfo->GetSrcOperand(i); 00056 00057 if( operand == -1 ) { 00058 continue; 00059 } 00060 00061 int phyRegNo = ResolveReg(operand); 00062 op->SetSrcReg(i, phyRegNo); 00063 } 00064 } 00065 00066 // VWX^CX^XAopZbg 00067 // resolve L AllocateReg タ 00068 void RegDepPredBase::Allocate(OpIterator op) 00069 { 00070 OpInfo* opInfo = op->GetOpInfo(); 00071 int dstNum = opInfo->GetDstNum(); 00072 for(int i = 0; i < dstNum; ++i) { 00073 int operand = opInfo->GetDstOperand(i); 00074 00075 if( operand == -1 ) { 00076 continue; 00077 } 00078 00079 int phyRegNo = AllocateReg(op,operand); 00080 op->SetDstReg(i, phyRegNo); 00081 } 00082 } 00083 00084 // CommitA_WX^OfXeBl[VEWX^ 00085 void RegDepPredBase::Commit(OpIterator op) 00086 { 00087 OpInfo* opInfo = op->GetOpInfo(); 00088 int dstNum = opInfo->GetDstNum(); 00089 for(int i = 0; i < dstNum; ++i) { 00090 int operand = opInfo->GetDstOperand(i); 00091 ReleaseReg(op, operand, op->GetDstReg(i)); 00092 } 00093 } 00094 00095 // OptbVOpゥgfXeBl[VEWX^ 00096 void RegDepPredBase::Flush(OpIterator op) 00097 { 00098 if( op->GetStatus() == OpStatus::OS_FETCH ){ 00099 return; 00100 } 00101 OpInfo* opInfo = op->GetOpInfo(); 00102 int dstNum = opInfo->GetDstNum(); 00103 for(int i = 0; i < dstNum; ++i) { 00104 int operand = opInfo->GetDstOperand(i); 00105 DeallocateReg(op, operand, op->GetDstReg(i)); 00106 } 00107 }