Linaro GCC

Improve vectoriser narrowing operations

Registered by Michael Hope on 2011-09-13

Investigate how effectively GCC uses the NEON narrowing arithmetic instructions. Implement, upstream, and backport.

Blueprint information

Status:: Complete

Approver:: Michael Hope

Priority:: Low

Drafter:: Ira Rosen

Direction:: Approved

Assignee:: None

Definition:: Approved

Series goal:: Accepted for 4.6

Implementation:: Informational

Milestone target:: backlog

Started by: Matthew Gretton-Dann on 2013-05-28

Completed by: Matthew Gretton-Dann on 2013-05-28

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Ira said on 2011-09-13: "We don't have any benchmark for this, it needs complicated pattern detection (which will not be appreciated by GCC), and we have much more important features to work on..."

[2013-05-28 matthew-gretton-dann] Removing from even the backlog as we still have no benchmark and no issues have been raised by users.

(?)

Work Items

Work items:
Investigate: DONE
Implement, upstream, and backport: TODO

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