Integrated: 8357982: Fix several failing BMI tests with -XX:+UseAPX
Jatin Bhateja
jbhateja at openjdk.org
Wed Jun 11 13:51:35 UTC 2025
On Wed, 28 May 2025 16:21:56 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:
> A) Patch extends the following tests with hard-coded encoding checks for various BMI instructions to cover REX2 or extended EVEX encodings supported by APX.
>
>
> compiler/intrinsics/bmi/verifycode/AndnTestI.java
> compiler/intrinsics/bmi/verifycode/AndnTestL.java
> compiler/intrinsics/bmi/verifycode/BzhiTestI2L.java
> compiler/intrinsics/bmi/verifycode/LZcntTestL.java
> compiler/intrinsics/bmi/verifycode/TZcntTestL.java
>
>
> B) After integration of JDK-8349582, which added APX NDD support, AndN instruction selection patterns that expect (Xor SRC, -1) as one of its operands were not getting selected because of a lower-cost generic immediate pattern match; patch fixes this issue through strict predicate checks.
>
> Above tests are now passing, validations were carried out using Intel Software Development emulator.
>
> Kindly review and share your feedback.
>
> Best Regards,
> Jatin
This pull request has now been integrated.
Changeset: c98dffa1
Author: Jatin Bhateja <jbhateja at openjdk.org>
URL: https://git.openjdk.org/jdk/commit/c98dffa186d48c41e76fd3a60e0129a8da60310f
Stats: 122 lines in 9 files changed: 108 ins; 0 del; 14 mod
8357982: Fix several failing BMI tests with -XX:+UseAPX
Reviewed-by: epeter, sviswanathan
-------------
PR: https://git.openjdk.org/jdk/pull/25501
More information about the hotspot-compiler-dev
mailing list