[foreign-memaccess+abi] RFR: 8299730: Add trivial call linker option [v3]

[Maurizio Cimadamore]

On Fri, 27 Jan 2023 15:33:52 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> Forgot to add the benchmarks before. Added them now.
> 
> Some numbers on my machine:
> 
> ```
> Benchmark                                  Mode  Cnt  Score   Error  Units
> CallOverheadConstant.jni_blank             avgt   30  4.271 � 0.012  ns/op
> CallOverheadConstant.panama_blank          avgt   30  3.300 � 0.022  ns/op
> CallOverheadConstant.panama_blank_trivial  avgt   30  2.853 � 0.010  ns/op
> CallOverheadVirtual.jni_blank              avgt   30  4.278 � 0.017  ns/op
> CallOverheadVirtual.panama_blank           avgt   30  3.665 � 0.014  ns/op
> CallOverheadVirtual.panama_blank_trivial   avgt   30  3.254 � 0.011  ns/op
> ```
> 
> The difference seems to be very minimal on my machine, but others have reported more significant improvements. This could still be improved by intrinsifying in C2 maybe, but not sure by how much, and if that's worth the complexity.

Nice!

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PR: https://git.openjdk.org/panama-foreign/pull/771