RFR: 8290154: [JVMCI] partially implement JVMCI for RISC-V [v7]

[Fei Yang]

On Wed, 24 Aug 2022 07:43:06 GMT, Sacha Coppey <duke at openjdk.org> wrote:

> > I see you added more changes in hotspot file sharedRuntime_riscv.cpp guarded by macro INCLUDE_JVMCI. Searching for INCLUDE_JVMCI or COMPILER2_OR_JVMCI in src/hotspot/cpu/aarch64, I see several more places checking for these macros. Have you checked if we need similar changes for your use case?
> 
> I first added the changes for all places where those macros are used, but since only modifying sharedRuntime_riscv.cpp was enough to make the tests pass, I did not wanted to add code that I was not sure was useful at the moment.

Well, that sounds fragile to me since you are depending on a relatively small set of JTreg tests here. I think an analysis is needed here to be sure about whether those are really needed or not.

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PR: https://git.openjdk.org/jdk/pull/9587