This patch exposes a couple of intrinsics used by String to speed up ASCII checking and byte[] -> char[] inflation, which can be used by latin1 and ASCII-compatible CharsetDecoders to speed up decoding operations.
- Fast-path implemented for all standard charsets, with up to 10x performance improvements in microbenchmarks reading Strings from ByteArrayInputStream. - Cleanup of StreamDecoder/-Encoder with some minor improvements when interpreting - Reworked creation of JavaLangAccess to be safely published for CharsetDecoders/-Encoders used for setting up System.out/in. As JLA and these encoders are created during System.initPhase1 the current sequence caused the initialization to became unstable and a few tests were consistently getting an NPE. Testing: tier1-3 ------------- Commit messages: - Safer publication of JavaLangAccess - Logic error - Move creation of JavaLangAccess up before creating System.in/out - Fix typo (caught by Test4625418.java) - Merge branch 'master' into streamdecoder - Let decoders use String intrinsics to inflate ASCII-only bytes - Remove trailing spaces - Add microbenchmark - Simplify and improve StreamDecoder/-Encoder Changes: https://git.openjdk.java.net/jdk/pull/2574/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2574&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8261744 Stats: 706 lines in 13 files changed: 300 ins; 107 del; 299 mod Patch: https://git.openjdk.java.net/jdk/pull/2574.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2574/head:pull/2574 PR: https://git.openjdk.java.net/jdk/pull/2574
