RFR (S) : 8049348 : [TESTBUG] compiler/intrinsics/bmi/verifycode tests on lzcnt and tzcnt use incorrect assumption about REXB prefix usage

[Vladimir Kozlov]

Looks good.

Vladimir

On 7/16/14 3:55 AM, Anton Ivanov wrote:
> Hi all,
>
> Please review the patch for bug 8049348
>
> Promlem:
> compiler/intrinsics/bmi/verifycode/ tests on lzcnt and tzcnt based on assumption that REXB prefix used only for Long's
> intrinsic.
>
> Solution:
> both (integer and long) lzcnt and tzcnt tests were updated to understand different native instructions (with REX prefix,
> and without)
>
>
> webrev: http://cr.openjdk.java.net/~aaivanov/8049348/webrev.00
>
> jbs: https://bugs.openjdk.java.net/browse/JDK-8049348
>
> testing: compiler/intrinsics/bmi/verifycode. tested not with jprt, because there is very low or zero chance that host
> with CPU supporting tested instruction will be used. tests were run locally on 3 configurations, including the host
> where bug was found
>
> -- Best regards, Anton Ivanov