> We can fold the call to `Objects.checkIndex` into the code generated in > generateTypeSwitchSkeleton instead of doing so by filtering the MH argument. > This loads 9 less classes (of which 8 generated LFs and Species classes) on a > minimal test, while being neutral on a throughput sanity test: > > > Name Cnt Base Error Test Error Unit Change > SwitchSanity.switchSum 15 8,162 ± 0,117 8,152 ± 0,131 ns/op 1,00x (p = > 0,800 ) > * = significant > ``` > > A few additional optimizations includes moving some seldom used `findStatic` > calls to a holder. All in all this means a reduction by 22M cycles to > bootstrap a trivial switch expression on my M1.
Claes Redestad has updated the pull request incrementally with one additional commit since the last revision: Add type switch to HelloClasslist ------------- Changes: - all: https://git.openjdk.org/jdk/pull/19307/files - new: https://git.openjdk.org/jdk/pull/19307/files/c212a3d5..f04d78ea Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=19307&range=02 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19307&range=01-02 Stats: 11 lines in 1 file changed: 11 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/19307.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19307/head:pull/19307 PR: https://git.openjdk.org/jdk/pull/19307
