On Thu, 29 Aug 2024 11:44:50 GMT, Shaojin Wen <s...@openjdk.org> wrote:
> A very small optimization, split the large method inflate, split the
> infrequently used paths into a method inflateCHAR
Java's UTF8 entry cannot use the 4-byte format in regular UTF8. You can check
out how DataInputStream read UTF8 strings instead.
src/java.base/share/classes/jdk/internal/classfile/impl/AbstractPoolEntry.java
line 402:
> 400: return JLA.regionMatches(s, rawBytes, LATIN1, offset,
> charLen);
> 401: } else {
> 402: return JLA.regionMatches(s, chars, UTF16, 0, charLen);
I think instead of making our internal representation complex to speed up this
regionMatches, we should ask the VM side if they can provide a Java API for
ArraysSupport.mismatch that operates on a byte array and a char array.
-------------
Changes requested by liach (Reviewer).
PR Review: https://git.openjdk.org/jdk/pull/20767#pullrequestreview-2268548164
PR Review Comment: https://git.openjdk.org/jdk/pull/20767#discussion_r1736590160
