公开(公告)号：GB2486117B

公开(公告)日：2017-03-22

申请号：GB201204358

申请日：2010-07-19

Applicant: IBM

Inventor： ALEXANDRE EICHENBERGER ,  ALAN GARA ,  MICHAEL GSCHWIND

IPC: G06F9/45

Abstract: Mechanisms are provided for inserting indicated instructions for tracking and indicating exceptions in the execution of vectorized code. A portion of first code is received for compilation. The portion of first code is analyzed to identify non-speculative instructions performing designated non-speculative operations in the first code that are candidates for replacement by replacement operation-and-indicate instructions that perform the designated non-speculative operations and further perform an indication operation for indicating any exception conditions corresponding to special exception values present in vector register inputs to the replacement operation-and-indicate instructions. The replacement is performed and second code is generated based on the replacement of the at least one non-speculative instruction. The data processing system executing the compiled code is configured to store special exception values in vector output registers, in response to a speculative instruction generating an exception condition, without initiating exception handling.

公开(公告)号：GB2485083B

公开(公告)日：2016-12-14

申请号：GB201200165

申请日：2010-07-19

Applicant: IBM

Inventor： ALEXANDRE EICHENBERGER ,  ALAN GARA ,  MICHAEL GSCHWIND ,  MARTIN OHMACHT

IPC: G06F9/38 ,  G06F12/0842