RFR: 8209439(XXS): C2 library_call can potentially ignore Math.pow intrinsic or use null pointer

[Dmitrij Pochepko]

Hi,

please review small fix for  8209439: C2 library_call can potentially 
ignore Math.pow intrinsic or use null pointer

During development of Math.pow intrinsic for AArch64 I noticed, that 
this intrinsic is not used, so I found copy-paste error in library 
calls. dexp existence is checked instead of dpow while trying to inline 
Math.power.

Currently no platform is affected because dexp and dpow either both 
missing or exists.

I've verified this fix by compiling jdk with my intrinsic and checking 
vm behavior (on AArch64).

CR: https://bugs.openjdk.java.net/browse/JDK-8209439

webrev: http://cr.openjdk.java.net/~dpochepk/8209439/webrev.01/


Thanks,

Dmitrij