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

Vladimir Kozlov vladimir.kozlov at oracle.com
Wed Jan 14 18:46:34 UTC 2015

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.


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

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