RFR(s): 8154210: Zero: Better byte behaviour
sgehwolf at redhat.com
Fri Apr 22 12:42:44 UTC 2016
[new thread for JDK 9].
Could somebody please review this Zero-only fix for jdk9/dev? The April
CPU patches for OpenJDK broke this (bug 8132051). Please see the bug
The fixes are:
- Fix the jump table which is used for Zero release builds, since
JDK-8132051 introduced a new bytecode _fast_zputfield.
- Make sure that results, which are a subword of a stack slot
(possibly narrowed) are always at the lowest address.
The fix was originally written by Andrew Haley.
Once reviewed and pushed, we'd need a similar fix for JDK 8u Zero
which is currently broken too. I think this fix needs to get pushed to
jdk9/dev directly since jdk9/hs does not have the CPU fixes yet.
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