RFR(XS) 8145579: SimpleThresholdPolicy assumes non-trivial methods to be trivial

[Vladimir Kozlov]

Good.

Thanks,
Vladimir

On 12/4/17 9:44 AM, dean.long at oracle.com wrote:
> https://bugs.openjdk.java.net/browse/JDK-8145579
> http://cr.openjdk.java.net/~dlong/8145579/webrev/
> 
> This change fixes certain non-trivial methods being marked as trivial.  
> A method should only be marked as trivial if C2 cannot generate better 
> code.  The two cases fixed here are calling intrinsics, and 
> Object.<init>, which has a hidden call to register finalizers.  When run 
> with http://cr.openjdk.java.net/~shade/8145579/benchmarks.jar 
> <http://cr.openjdk.java.net/%7Eshade/8145579/benchmarks.jar>, the test 
> methods now end up compiled at level 4 instead of level 1.
> 
> dl