[9] RFR(S): 8080156: Integer.toString(int value) sometimes throws NPE

[Andreas Eriksson]

Hi Tobias,

You have a comma that shouldn't be there in the bugid line:
--------------------------------------------------
TEST: compiler/types/TestTypePropagationToCmpU.java
TEST RESULT: Error. Parse Exception: Invalid or unrecognized bugid: 8080156,
--------------------------------------------------

Otherwise it looks good to me.
Thanks for pushing this test.

- Andreas

On 2015-05-21 20:51, Tobias Hartmann wrote:
> Hi,
>
> this is a follow up RFR on JDK-8060036 [1] that adds a regression test I used while investigating JDK-8080156 which turned out to be a duplicate.
>
> https://bugs.openjdk.java.net/browse/JDK-8080156
> http://cr.openjdk.java.net/~thartmann/8080156/webrev.00/
>
> The test triggers a range check that is implemented with a CmpUNode. If type information is not propagated correctly to the CmpUNode, the range check trap is always taken. Because C2 also removes the unnecessary buffer allocation, a NullPointerException is thrown and the test fails.
>
> Thanks,
> Tobias
>
> [1] http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2015-May/017983.html