RFR: 8283689: Update the foreign linker VM implementation [v7]

[Jorn Vernee]

On Tue, 10 May 2022 20:38:05 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Jorn Vernee has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 21 commits:
>> 
>>  - Merge branch 'foreign-preview-m' into JEP-19-VM-IMPL2
>>  - Remove unneeded ComputeMoveOrder
>>  - Remove comment about native calls in lcm.cpp
>>  - 8284072: foreign/StdLibTest.java randomly crashes on MacOS/AArch64
>>    
>>    Reviewed-by: jvernee, mcimadamore
>>  - Update riscv and arm stubs
>>  - Remove spurious ProblemList change
>>  - Pass pointer to LogStream
>>  - Polish
>>  - Replace TraceNativeInvokers flag with unified logging
>>  - Fix other platforms, take 2
>>  - ... and 11 more: https://git.openjdk.java.net/jdk/compare/3c88a2ef...43fd1b91
>
> src/hotspot/share/prims/foreign_globals.cpp line 217:
> 
>> 215: 
>> 216:  public:
>> 217:   ForeignCMO(int total_in_args, const VMRegPair* in_regs, int total_out_args, VMRegPair* out_regs,
> 
> I propose to turn it into a trivial ctor and move all the logic into a helper static function which returns the computed moves.

Done. Moved constructor logic into a `compute` method, and added a static helper that constructs a ComputeMoveOrder, calls `compute`, and then returns the moves.

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PR: https://git.openjdk.java.net/jdk/pull/7959