[11u backport] RFR(S): 8215317: [GRAAL] unit test CheckGraalIntrinsics failed after 8213754

[Gustavo Romero]

Hi,

Could the following backport to 11u be reviewed, please?

Bug     : https://bugs.openjdk.java.net/browse/JDK-8215317
Change  : http://hg.openjdk.java.net/jdk/jdk/rev/108a161aed93
Backport: http://cr.openjdk.java.net/~gromero/8215317_jdk11u/v1/

It adds 4 intrinsics to the Graal test CheckGraalIntrinsics.java list so
JDK 11u becomes aware of them. Otherwise that test will break once change
8213754 [0] lands 11u (which will effectively add the 4 intrinsics to
PPC64/Hotspot and adapt the correlated methods to be intrinsified).

The backport changed the inclusion of the intrinsics for JDK 11 or higher,
instead for JDK 12 or higher (original patch).

This backport was tested on x86_64 with
./test/hotspot/jtreg/compiler/{c1,c2,intrinsics} plus
./test/hotspot/jtreg/compiler/graalunit (with Graal compiler enabled)
and no regressions were observed too.

Thank you.

Best regards,
Gustavo

[0] https://bugs.openjdk.java.net/browse/JDK-8213754