公开(公告)号：US20160328172A1

公开(公告)日：2016-11-10

申请号：US14706936

申请日：2015-05-07

Applicant: INTEL CORPORATION

Inventor： LIHU RAPPOPORT ,  JARED W. STARK ,  KAMIL GARIFULLIN ,  FRANCK SALA ,  PAVEL I. KRYUKOV ,  STANISLAV SHWARTSMAN

IPC: G06F3/06 ,  G06F12/08

CPC classification number: G06F3/0631 ,  G06F3/06 ,  G06F3/0604 ,  G06F3/0671 ,  G06F9/3826 ,  G06F9/3832 ,  G06F9/3834 ,  G06F9/384 ,  G06F12/0802

Abstract: A method and apparatus are described for efficient memory renaming prediction using virtual registers. For example, one embodiment of an apparatus comprises: a memory execution unit (MEU) to perform store and load operations to store data to memory and load data from memory, respectively; a plurality of memory rename (MRN) registers assigned to store and load operations, each MRN register to store data associated with a store operation so that the data is available for a subsequent load operation; and at least one MRN predictor comprising a data structure to allocate virtual memory rename (VMRN) registers to each of the MRN registers, the MRN predictor to query the data structure in response to a load and/or store operation using a value identifying the MRN register assigned to the load and/or store operation, respectively, to determine a current VMRN register associated with the load and/or store operation.

Abstract translation: 描述了使用虚拟寄存器进行有效的存储器重命名预测的方法和装置。 例如，设备的一个实施例包括：存储器执行单元（MEU），用于执行存储和加载操作，以分别将存储数据存储到存储器中并从存储器加载数据; 分配给存储和加载操作的多个存储器重命名（MRN）寄存器，每个MRN寄存器存储与存储操作相关联的数据，使得数据可用于后续加载操作; 以及至少一个MRN预测器，其包括用于向每个MRN寄存器分配虚拟存储器重命名（VMRN）寄存器的数据结构，MRN预测器，使用标识MRN的值来响应于负载和/或存储操作来查询数据结构 分配给负载和/或存储操作的寄存器，以确定与负载和/或存储操作相关联的当前VMRN寄存器。