[OpenJDK 2D-Dev] [9] Review Request: 8140266 Performance loss between jdk8 and jdk9 on Maskfill

Laurent Bourgès bourges.laurent at gmail.com
Fri Dec 23 13:57:28 UTC 2016


It is good for me as I tested the patch with OpenJDK9 and the Marlin

I am not an official reviewer !


Le 23 déc. 2016 12:16, "Sergey Bylokhov" <sergey.bylokhov at oracle.com> a
écrit :

> Hello.
> Please review the small fix for jdk9.
> The change add an additional gcc option to the libawt lib to improve some
> graphics operations: 20%.
> This option is a part of -03.
> -fgcse-after-reloadWhen -fgcse-after-reload is enabled, a redundant load
> elimination pass is performed after reload. The purpose of this pass is to
> clean up redundant spilling.
> https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
> Note that if -03 will be enabled directly via OPTIMIZATION flag then the
> performance will not be improved.
> Bug: https://bugs.openjdk.java.net/browse/JDK-8140266
> Webrev can be found at: http://cr.openjdk.java.net/~serb/8140266/webrev.00
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