[9] RFR(S): 8161085: PreserveFPRegistersTest fails with 'AssertionError: Final value has changed'

[Vladimir Kozlov]

Good.

Thanks,
Vladimir

On 9/21/16 12:01 AM, Tobias Hartmann wrote:
> Hi,
>
> please review the following patch:
> https://bugs.openjdk.java.net/browse/JDK-8161085
> http://cr.openjdk.java.net/~thartmann/8161085/webrev.00/
>
> This problem is very similar to JDK-8148175, the test fails because G1 barriers emitted by C1 do not preserve floating point registers on SPARC. The problem is that the barrier code calls into the runtime without saving/restoring the FP registers. I fixed this by using save_live_registers() instead of manually saving individual registers.
>
> Tested with failing regression test on SPARC and RBT (running).
>
> Thanks,
> Tobias
>