Porting Loom to additional architectures

[Aleksey Shipilev]

On 9/24/21 1:08 PM, Alan Bateman wrote:
> On 24/09/2021 10:50, Aleksey Shipilev wrote:
>> I can take a look at x86_32.
>>
>> What is the usual criteria for "passing" Loom implementation? In other
>> words, what tests should pass to say that the port is good?
>>
> Eventually all tests should pass. A more targetted subset to run is
> 
> test/jdk/:jdk_lang
> test/hotspot/jtreg/runtime/vthread
> test/hotspot/jtreg/serviceability/jvmti/vthread
> 
> and maybe test/jdk/jdk/internal/vm/Continuation for the initial runs
> once you have something running.

All right, thanks. I doing x86_32 here:
   https://github.com/openjdk/loom/pull/65

x86_32 is basically a gateway for 32/64 bit cleanliness, as you can see from the multiple format 
string changes. If we do ARM32 port, most of this should be fixed anyway.

I also see there is plenty of commented code in the Loom files, long lines, especially around 
logging and asserts, etc. Since porting work would probably copy-paste some of that, I think 
cleaning up x86_64 code would be beneficial for everyone.

-- 
Thanks,
-Aleksey