公开(公告)号：US20180121204A1

公开(公告)日：2018-05-03

申请号：US15845641

申请日：2017-12-18

申请人： ADVANCED MICRO DEVICES, INC.

发明人： Jaewoong CHUNG ,  David S. CHRISTIE ,  Michael P. HOHMUTH ,  Stephan DIESTELHORST ,  Martin POHLACK ,  Luke YEN

IPC分类号： G06F9/38 ,  G06F9/46 ,  G06F9/30

CPC分类号： G06F9/3842 ,  G06F9/3004 ,  G06F9/30087 ,  G06F9/3834 ,  G06F9/3857 ,  G06F9/3859 ,  G06F9/467

摘要： A processing core of a plurality of processing cores is configured to execute a speculative region of code a single atomic memory transaction with respect one or more others of the plurality of processing cores. In response to determining an abort condition for issued one of the plurality of program instructions and in response to determining that the issued program instruction is not part of a mispredicted execution path, the processing core is configured to abort an attempt to execute the speculative region of code.