RFR(XS) 8068909: SIGSEGV in c2 compiled code with OptimizeStringConcat

[Volker Simonis]

Hi Vladimir,

please find Axels webrev here:

http://cr.openjdk.java.net/~simonis/webrevs/2015/8068909/

Regards,
Volker

PS: unfortunately Axel can't access his OpenJDK webrev-space any more
since it was moved sometimes last summer but we will try once again to
reactivate it now.

On Wed, Jan 14, 2015 at 7:46 PM, Vladimir Kozlov
<vladimir.kozlov at oracle.com> wrote:
> Hi Axel,
>
> Thank you for looking on this issue.
> Before we start reviewing it, please, publish webrev on cr.openjdk.java.net.
> It is requirement for accepting changes. Your colleagues can help you.
>
> Regards,
> Vladimir
>
>
> On 1/14/15 2:53 AM, Siebenborn, Axel wrote:
>>
>> Hi,
>>
>> I investigated a crash with jdk8_u25 and opened the following bug:
>>
>> https://bugs.openjdk.java.net/browse/JDK-8068909
>>
>> I would suggest the following fix:
>>
>> http://www.sapjvm.com/as/webrevs/8068909/
>>
>> If the control of the inserted load, to NULL. In this case, its
>> corresponding nullcheck will be found as required edge
>> to the CastPP during MemNode::Ideal_common_DU_postCCP.
>>
>> Thanks,
>>
>> Axel
>>
>