POWER9: Is there a way to improve the random number generation on PPC64?

Gustavo Romero gromero at linux.vnet.ibm.com
Thu Feb 1 02:47:19 UTC 2018


Hi Martin,

On 01/31/2018 12:00 PM, Doerr, Martin wrote:
> I think lir_random needs to be modelled as LIR_Op0 (i.e. 0 input operands) like e.g. lir_get_thread.

Modeling as a LIR_Op0 fixed the error [1]. I'll prepare a final version, do a few
more tests, and start a discussion about using 'darn' for SecureRandom on POWER9
on the security ML as Volker suggested.

Thanks a lot, Martin.


Best regards,
Gustavo

[1] http://cr.openjdk.java.net/~gromero/misc/darn_C1_v2.patch



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