RFR: 8376113: PPC64: Implement special MachNodes for floating point Min / Max [v6]

[Richard Reingruber]

On Fri, 6 Feb 2026 11:45:01 GMT, David Briemann <dbriemann at openjdk.org> wrote:

>> Add mach nodes MinF, MaxF, MinD, MaxD for PPC.
>
> David Briemann has updated the pull request incrementally with one additional commit since the last revision:
> 
>   more copyright updates..

src/hotspot/cpu/ppc/ppc.ad line 12327:

> 12325:   ins_cost(DEFAULT_COST);
> 12326: 
> 12327:   format %{ "MinF $dst, $src1, $src2" %}

To late now and rather a nit: `PrintOptoAssembly` should print the real instructions (`xsminjdp` in this case) whenever possible. Only in exceptional cases we print pseudo instructions if printing the real instructions is too complicated.
Can be fixed in a future clean-up.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29361#discussion_r2853078161