By Topic

Spill code minimization by spill code motion

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Koseki, A. ; IBM Tokyo Res. Lab., Kanagawa, Japan ; Komatsu, H. ; Nakatani, T.

We aim at minimizing the spill costs. Spill cost minimization heuristics that have been researched sometimes work in unexpected ways due to the lack of precise knowledge of registers availability, which can be obtained only after register allocation is all finished. Different from previous techniques, our approach, called spill code motion, tries to eliminate redundancy among spill code. This works as a variation of commonly used code motion techniques. After Chaitin-style graph coloring with naive live range splitting, spill-in instructions are first hoisted as long as registers are available and until they reach spill-out instructions. Unnecessarily hoisted spill-in instructions are then sunk. The experimental results show our approach yields up to a 10% performance increase compared to the latest spill code minimization technique in the case of using small number of registers.

Published in:

Parallel Architectures and Compilation Techniques, 2003. PACT 2003. Proceedings. 12th International Conference on

Date of Conference:

27 Sept.-1 Oct. 2003