RFR [XS]: 8248429: Add --enable-preview as VM argument when running microbenchmarks

[Erik Joelsson]

On 2020-06-30 13:15, Claes Redestad wrote:
> On 2020-06-30 22:12, Magnus Ihse Bursie wrote:
>>>
>>> Second to that a solution in the build would be preferable - if we can
>>> come up with something that has infinitesimal impact to build times.
>> Are we talking about many files? Could you consider listing those 
>> files explicitly in the makefile? That would make it cheap to filter 
>> them out from the normal compilation, and instead do a secondary 
>> compilation with them.
>
> Right now there's one micro using --enable-preview, so that'd be a very
> short list.
>
Having to update a list manually is no fun, but at least we can make the 
build fail if you forget. If you only disable the warning "preview" for 
the special compilation set, the build would fail if another 
microbenchmark was added that needed it.

/Erik

> /Claes