March 2021 - core-libs-dev

Re: RFR: 8262096: Vector API fails to work due to VectorShape initialization exception [v5]
by Jie Fu 02 Mar '21

02 Mar '21

> Hi all, > > Vector API fails to work when: > - case 1: MaxVectorSize is set to <=8, or > - case 2: C2 is disabled > > The reason is that {max/preferred} VectorShape initialization fails in both cases. > And the root cause is that VectorSupport_GetMaxLaneCount [1] returns unreasonable values (0 for case 1 and -1 for case 2). > > Vector API should not depend on C2 to run. > It should work even there is no JIT compiler since it's a Java-level api. > So let's fix it. > > Testing: > - jdk/incubator/vector with -XX:MaxVectorSize=default/8 on Linux/x64 > > Thanks. > Best regards, > Jie > > [1] https://github.com/openjdk/jdk/blob/master/src/hotspot/share/prims/vectorSu… Jie Fu has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains seven additional commits since the last revision: - Fix in jdk/incubator/vector/VectorShape.java - Merge branch 'master' into JDK-8262096 - Revert changes - Remove -XX:TieredStopAtLevel=3 - Update the jtreg test - The numerator should be 8 (byte) - 8262096: Vector API fails to work due to VectorShape initialization exception ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/2722/files - new: https://git.openjdk.java.net/jdk/pull/2722/files/bbe6150c..b67b232d Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2722&range=04 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2722&range=03-04 Stats: 7047 lines in 380 files changed: 3707 ins; 1675 del; 1665 mod Patch: https://git.openjdk.java.net/jdk/pull/2722.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2722/head:pull/2722 PR: https://git.openjdk.java.net/jdk/pull/2722

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RFR: JDK-8261839: Error creating runtime package on macos without mac-pack…
by Andy Herrick 01 Mar '21

01 Mar '21

…age-identifier ------------- Commit messages: - JDK-8261839: Error creating runtime package on macos without mac-package-identifier Changes: https://git.openjdk.java.net/jdk/pull/2730/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2730&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8261839 Stats: 24 lines in 4 files changed: 8 ins; 5 del; 11 mod Patch: https://git.openjdk.java.net/jdk/pull/2730.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2730/head:pull/2730 PR: https://git.openjdk.java.net/jdk/pull/2730

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RFR: 8262379: Add regression test for JDK-8257746
by Severin Gehwolf 01 Mar '21

01 Mar '21

Fails prior the patch of JDK-8257746, passes after. As expected. Thoughts? ------------- Commit messages: - 8262379: Add regression test for JDK-8257746 Changes: https://git.openjdk.java.net/jdk/pull/2725/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2725&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8262379 Stats: 56 lines in 1 file changed: 56 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/2725.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2725/head:pull/2725 PR: https://git.openjdk.java.net/jdk/pull/2725

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