[7u40] Request for phase 2 approval for CR 8015668 (original) (raw)

[7u40] Request for phase 2 approval for CR 8015668 - overload resolution: performance regression in JDK 7

Vicente-Arturo Romero-Zaldivar vicente.romero at oracle.com
Wed Jun 19 10:37:22 PDT 2013

Hello,

Please approve this CR for 7u40, the bug can be find at [1]. The webrev can be found at [2] and the public review thread at [3].

The reviewers were: Jonathan Gibbons and David Holmes.

This fix solve a very bad regression in JDK 7, compilation time for a corner case has been improved from 5 minutes to less than 5 seconds.

Tests done:

jprt job - OK for langtools tests for all platforms. build JDK 7 + patch - OK rt.jar size regression - NO JCK tests - OK for all

The expected risk is very low as long as this patch is a refactoring.

Thanks,

Vicente

[1] http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8015668 [2] http://cr.openjdk.java.net/~vromero/8015668_JDK7/webrev.00/ [3] http://mail.openjdk.java.net/pipermail/compiler-dev/2013-June/006580.htm

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