[jdk21u-dev] Integrated: 8318509: x86 count_positives intrinsic broken for -XX:AVX3Threshold=0

Sat May 10 02:43:59 UTC 2025

On Wed, 30 Apr 2025 23:06:51 GMT, Satyen Subramaniam <ssubramaniam at openjdk.org> wrote:

> Backporting JDK-8318509: x86 count_positives intrinsic broken for -XX:AVX3Threshold=0. Fix pulls the value from tmp1, which contains the correct value. Adds test. Ran GHA Sanity Checks, local Tier 1 and 2, and new `test/hotspot/jtreg/compiler/intrinsics/string/TestCountPositives.java` tests. Patch is clean.

This pull request has now been integrated.

Changeset: ecd9166c
Author:    Satyen Subramaniam <ssubramaniam at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/ecd9166c9330d888fd4b8d8b05510a2ec746db3a
Stats:     193 lines in 3 files changed: 100 ins; 40 del; 53 mod

8318509: x86 count_positives intrinsic broken for -XX:AVX3Threshold=0

Backport-of: e67550cfec4dbd1c8c2c9869dda34fa09a5c274b

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PR: https://git.openjdk.org/jdk21u-dev/pull/1726