Bug ID: JDK-8229866 [vector] Reduce code size generated from AD files

Type: Enhancement
Component: hotspot
Sub-Component: compiler
Affected Version: repo-panama

Priority: P4
Status: Open
Resolution: Unresolved
OS: generic
CPU: generic

Submitted: 2019-08-19
Updated: 2019-08-23

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.

Other
repo-panamaUnresolved

When the patch of 8222074: Enhance auto vectorization for x86 is reviewed, there are some discussions how to reduce code size generated from AD file.
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-April/033339.html

The following is one of suggestions.
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-April/033362.html

Hi Yang, I have posted a patch for reducing the number vector patterns using generic operands. Kindly share your views on the same. https://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-August/034822.html

23-08-2019

Relates :	JDK-8222074 - Enhance auto vectorization for x86
Relates :	JDK-8230015 - [instruction selector] generic vector operands support.