RFR (S) 8046275: Fastdebug build failing on jdk9/hs/ control jobs after pulling some hs-comp changes

[Vladimir Kozlov]

Thank you, Vladimir

Vladimir K

On 6/10/14 2:49 AM, Vladimir Ivanov wrote:
> Looks good.
>
> Best regards,
> Vladimir Ivanov
>
> On 6/9/14 9:14 PM, Vladimir Kozlov wrote:
>> http://cr.openjdk.java.net/~kvn/8046275/webrev
>> https://bugs.openjdk.java.net/browse/JDK-8046275
>>
>> Loop optimization method clone_loop() collects all outside IF nodes
>> which use a Bool node inside a cloned loop and then constructs new Bool
>> node of Phi to replace the Phi of cloned Bool nodes after loop body is
>> cloned. This code is not triggered because in bug case IF node
>> references Bool through Opaque node - it is loop limit check predicate.
>> We keep Opaque in loop predicates until the end of loop opts.
>>
>> Tested with hotspot regression tests, JPRT control build (including
>> 'deploy').
>>
>> I was not able to write simple test. The problem is always reproduced
>> with control JDK build with 'deploy'.
>>
>> Thanks,
>> Vladimir