RFR: 8296548: Improve MD5 intrinsic for x86_64

Tue Nov 15 19:21:02 UTC 2022

On Tue, 15 Nov 2022 18:48:14 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

> > Do we have other intrinsics which use LEA (not for this fix)?
> 
> There is a VM_Version::supports_fast_2op_lea() and VM_Version::supports_fast_3op_lea() check available which is used to do lea optimizations.

Thanks you @sviswa7

For this fix, based on IceLake data provided by @yftsai, `supports_fast_3op_lea()` potential help is not enough to justify increase complexity of code. May be in other places it would be more useful but not here IMHO.

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PR: https://git.openjdk.org/jdk/pull/11054