> This PR improves the performance of vector operations that accept masks on > architectures that support masking in hardware, specifically Intel AVX512 and > ARM SVE. > > On architectures that do not support masking in hardware the same technique > as before is applied to most operations, specifically composition using blend. > > Masked loads/stores are a special form of masked operation that require > additional care to ensure out-of-bounds access throw exceptions. The range > checking has not been fully optimized and will require further work. > > No API enhancements were required and only a few additional tests were needed.
Paul Sandoz has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 16 commits: - Merge branch 'master' into JDK-8271515-vector-api - Add missing null check post mask unboxing. - Merge pull request #2 from nsjian/vector-conversion-fix AArch64: Incorrect SVE double to int and float to long vector conversion - Incorrect double to int and float to long vector conversion Like JDK-8276151, SVE vector double to int and float to long conversions have similar issue. According to Java language specification [1], we should convert double/float to integer/long directly, instead of converting to long/int and then narrowing/extending to target types. Test cases will be updated in JDK-8276151. [1] https://docs.oracle.com/javase/specs/jls/se17/html/jls-5.html#jls-5.1.3 - Merge branch 'master' into JDK-8271515-vector-api - Merge pull request #1 from nsjian/JDK-8271515 Address AArch64 review comments from Nick. - Address review comments from Nick. - Merge branch 'master' into JDK-8271515-vector-api - Resolve review comments. - Merge branch 'master' into JDK-8271515-vector-api - ... and 6 more: https://git.openjdk.java.net/jdk/compare/6f35eede...44697f8b ------------- Changes: https://git.openjdk.java.net/jdk/pull/5873/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5873&range=09 Stats: 21982 lines in 104 files changed: 16217 ins; 2087 del; 3678 mod Patch: https://git.openjdk.java.net/jdk/pull/5873.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5873/head:pull/5873 PR: https://git.openjdk.java.net/jdk/pull/5873
