Show simple item record

dc.contributor.authorHarvey, Timothy J.
dc.date.accessioned 2017-08-02T22:03:42Z
dc.date.available 2017-08-02T22:03:42Z
dc.date.issued 1998-07-24
dc.identifier.urihttps://hdl.handle.net/1911/96495
dc.descriptionThis work was also published as a Rice University thesis/dissertation: http://hdl.handle.net/1911/17173
dc.description.abstract All graph-coloring register allocators rely on heuristics to arrive at a "good" answer to the NP-complete problem of register allocation, resulting in suboptimal code due to spill code. We look at a post-pass to the allocator that removes unnecessary spill code by finding places where the availability of an unused register allows us to "promote a spill to a register. We explain and correct an error in Briggs' spill-code insertion algorithm that sometimes inserts an unnecessary number of spill instructions. This fix has an insignificant impact on the runtime of the compiler and never causes a degradation in runtime of the code produced. We suggest minimizing the impact of the spill code with a small separate memory dedicated to spills and under the exclusive control of the compiler. We show an algorithm and experimental results which suggest that this hardware construct would significantly decrease the runtime of the code.
dc.format.extent 59 pp
dc.language.iso eng
dc.rights You are granted permission for the noncommercial reproduction, distribution, display, and performance of this technical report in any format, but this permission is only for a period of forty-five (45) days from the most recent time that you verified that this technical report is still available from the Computer Science Department of Rice University under terms that include this permission. All other rights are reserved by the author(s).
dc.title Reducing the Impact of Spill Code
dc.type Technical report
dc.date.note July 24, 1998
dc.identifier.digital TR98-319
dc.type.dcmi Text
dc.identifier.citation Harvey, Timothy J.. "Reducing the Impact of Spill Code." (1998) https://hdl.handle.net/1911/96495.


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record