[9] RFR(M): 8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value

Vladimir Kozlov vladimir.kozlov at oracle.com
Thu Jan 7 19:08:54 UTC 2016



On 1/7/16 10:51 AM, Tobias Hartmann wrote:
> Hi,
> please review the following patch.
> https://bugs.openjdk.java.net/browse/JDK-8146629
> http://cr.openjdk.java.net/~thartmann/8146629/webrev.00/
> Currently, there is no way to determine in Node::Identity() and Node::Value() if we were called from GVN or IGVN but sometimes we would like to do optimizations based on this information (for example, see discussion in RFR for JDK-8136469 [1]). I changed the arguments of Node::Identity() and Node::Value() from PhaseTransform* to PhaseGVN*. Like this, we can simply call PhaseValues::is_IterGVN() from both methods.
> Thanks,
> Tobias
> [1] http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-January/020670.html

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