Request for reviews (S): 6879921: CTW failure jdk6_18/hotspot/src/share/vm/utilities/globalDefinitions.cpp:268
Vladimir.Kozlov at Sun.COM
Tue Sep 15 11:03:31 PDT 2009
Changpeng Fang wrote:
> We do not intend to apply superword to non-primitive types. Current
> implementation filters out non-primitives when it creates the initial
> set of
> packs through "find_adjacent_refs". However, when it extends the packlists
> using the def-use or use-def chains, non-primitives may still be put into
> consideration, and this leads to the assertion failure when we compute the
> data size of a T_ADDRESS type (bug 6879921).
> Filter out non-primitives when we extend the initial packlists (i.e.
> don't consider
> packing non-primitive defs and uses).
> Fixes 6879921: CTW failure
> JPRT and CTW
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