[jdk17u-dev] RFR: 8305690: [X86] Do not emit two REX prefixes in Assembler::prefix

Tue May 9 07:28:22 UTC 2023

On Mon, 8 May 2023 15:09:15 GMT, Guoxiong Li <gli at openjdk.org> wrote:

> Hi all,
> 
> This patch prevents `Assembler::prefix` from emitting two `REX` prefixes.
> 
> Low risk:
> It is a corner case which is not triggered by the current code.
> In order to avoid bugs in the future, it is good to backport it.
> 
> Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

The fix request was approved. Could I get your help to sponsor this patch?

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1334#issuecomment-1539599573