RFR(S): jdk11u-dev backport 8216556: Unnecessary liveness computation with JVMTI
Doerr, Martin
martin.doerr at sap.com
Mon May 6 12:54:01 UTC 2019
Hi,
I'd like to backport this change to jdk11u because it's very simply and avoids some unnecessary overhead.
Applies almost cleanly (only needs manual resolution because neighboring hunk has changed: CompileTheWorld removal).
bug:
https://bugs.openjdk.java.net/browse/JDK-8216556
original change:
http://hg.openjdk.java.net/jdk/jdk/rev/91ab128a65a3
jdk11u webrev:
http://cr.openjdk.java.net/~mdoerr/8216556_JVMTI_liveness/jdk11u/webrev.00/
I only had to reapply the change around
"if (CURRENT_ENV->should_retain_local_variables() || DeoptimizeALot || CompileTheWorld) {"
(ciMethod.cpp) because CompileTheWorld was removed.
Please review.
Best regards,
Martin
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