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1. 发明授权

US07478379B2 Method for minimizing spill in code scheduled by a list scheduler 失效
标题翻译：用于最小化由列表调度程序调度的代码中的溢出的方法
公开(公告)号：US07478379B2
公开(公告)日：2009-01-13
申请号：US10840088
申请日：2004-05-06
申请人： Damien Bonaventure , James Lawrence McInnes
发明人： Damien Bonaventure , James Lawrence McInnes
IPC分类号： G06F9/44 , G06F9/48 , G06F9/40
CPC分类号： G06F8/445
摘要： A technique of ordering machine instructions to reduce spill code. For each machine instruction that is ready for scheduling, an amount is determined by which the size of a committed set of machine instructions would increase upon the scheduling of the machine instruction. The machine instruction for which the determined amount is smallest is then scheduled. The currently committed instructions may be determined to be the machine instructions that are already scheduled as well as the machine instructions that are descendent from already scheduled machine instructions. The result is that new computations upon which a target processor will embark tend to be deferred. Bit vectors may be employed for efficiency during the assessment of candidate instructions that are ready for scheduling. The technique may be triggered when the risk of registers becoming overcommitted becomes high, as may occur when the number of available processor registers drops below a certain threshold.
摘要翻译：订购机器指令以减少溢出代码的技术。对于准备进行调度的每个机器指令，根据机器指令的调度，确定机器指令的一定程度的大小将被确定。然后调度确定量最小的机器指令。可以将当前承诺的指令确定为已经被调度的机器指令以及从已经调度的机器指令后代的机器指令。结果是，目标处理器将趋于延迟的新计算。可以在准备好进行调度的候选指令的评估期间采用位向量的效率。当寄存器过度承担的风险变高时，可能会触发该技术，如可用处理器寄存器的数量低于某个阈值时可能会发生的。

2. 发明申请

US20050022191A1 Method for minimizing spill in code scheduled by a list scheduler 失效
标题翻译：用于最小化由列表调度程序调度的代码中的溢出的方法
公开(公告)号：US20050022191A1
公开(公告)日：2005-01-27
申请号：US10840088
申请日：2004-05-06
申请人： Damien Bonaventure , James McInnes
发明人： Damien Bonaventure , James McInnes
IPC分类号： G06F9/30 , G06F9/45 , G06F9/46
CPC分类号： G06F8/445
摘要： A technique of ordering machine instructions to reduce spill code. For each machine instruction that is ready for scheduling, an amount is determined by which the size of a committed set of machine instructions would increase upon the scheduling of the machine instruction. The machine instruction for which the determined amount is smallest is then scheduled. The currently committed instructions may be determined to be the machine instructions that are already scheduled as well as the machine instructions that are descendent from already scheduled machine instructions. The result is that new computations upon which a target processor will embark tend to be deferred. Bit vectors may be employed for efficiency during the assessment of candidate instructions that are ready for scheduling. The technique may be triggered when the risk of registers becoming overcommitted becomes high, as may occur when the number of available processor registers drops below a certain threshold.
摘要翻译：订购机器指令以减少溢出代码的技术。对于准备进行调度的每个机器指令，根据机器指令的调度，确定机器指令的一定程度的大小将被确定。然后调度确定量最小的机器指令。可以将当前承诺的指令确定为已经被调度的机器指令以及从已经调度的机器指令后代的机器指令。结果是，目标处理器将趋于延迟的新计算。可以在准备好进行调度的候选指令的评估期间采用位向量的效率。当寄存器过度承担的风险变高时，可能会触发该技术，如可用处理器寄存器的数量低于某个阈值时可能会发生的。

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