[lworld] RFR: 8255995: templateTable_x86.cpp (TemplateTable::if_acmp) not always do correct null check.

Tobias Hartmann thartmann at openjdk.java.net
Wed Nov 18 06:23:08 UTC 2020


On Tue, 17 Nov 2020 17:54:36 GMT, David Simms <dsimms at openjdk.org> wrote:

> Testing both pointers at the same time, doesn't account for the case where bits
> completely miss each other, resulting in zero as result e.g.
> 
>   test(0x10, 0x01) == 0x10 & 0x01 == 0, yet neither are null

Marked as reviewed by thartmann (Committer).

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PR: https://git.openjdk.java.net/valhalla/pull/266


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