Withdrawn: 8301869: Regression ~14% in J2dBench-bimg_misc-* in 21-b5 only on linux-aarch64

[duke]

On Mon, 27 Feb 2023 11:49:27 GMT, Jayathirth D V <jdv at openjdk.org> wrote:

> Under https://bugs.openjdk.org/browse/JDK-8264846 we moved to -O3 level of gcc optimizations from -O1 level for libawt build. This improved our J2DBench performance numbers in some options considerably.
> 
> Recent changes done under https://bugs.openjdk.org/browse/JDK-8299337 causes difference in generated code by gcc and this is resulting in performance regression for bimg_misc-* J2DBench options in our performance servers. Under https://bugs.openjdk.org/browse/JDK-8299337 we have just removed unused variables and it is a cleanup task.
> 
> We can force gcc to generate position independent code by using -fpic option.Also i have removed -fgcse-after-reload option for gcc, because this is by default covered under -O3 level of optimization introduced under https://bugs.openjdk.org/browse/JDK-8264846.
> 
> With this change bimg_misc-* J2DBench option performance regression is resolved and there are no regression in other options of J2DBench or SwingMark and it is verified in our performance servers.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/12761