Invention Grant
- Patent Title: Compiler optimizations for vector instructions
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Application No.: US14576942Application Date: 2014-12-19
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Publication No.: US09619214B2Publication Date: 2017-04-11
- Inventor: Michael Karl Gschwind , Jin Song Ji , Ronald Ian McIntosh , Steven J. Munroe , William J. Schmidt
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Martin & Associates, LLC
- Agent Derek P. Martin
- Main IPC: G06F9/45
- IPC: G06F9/45 ; G06F9/30 ; G06F7/76 ; G06F13/40

Abstract:
An optimizing compiler includes a vector optimization mechanism that optimizes vector instructions by eliminating one or more vector element reverse operations. The compiler can generate code that includes multiple vector element reverse operations that are inserted by the compiler to account for a mismatch between the endian bias of the instruction and the endian preference indicated by the programmer or programming environment. The compiler then analyzes the code and reduces the number of vector element reverse operations to improve the run-time performance of the code.
Public/Granted literature
- US20160048445A1 COMPILER OPTIMIZATIONS FOR VECTOR INSTRUCTIONS Public/Granted day:2016-02-18
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