RFR: 8224201: Simplify JVM flag macro expansions

[Stefan Karlsson]

Hi Robbin,

Thanks for taking a look at this. Can I consider this reviewed by you?

StefanK

On 2019-05-20 19:53, Robbin Ehn wrote:
> Hi Stefan,
> 
> Thanks for fixing!
> 
> /Robbin
> 
> On 2019-05-20 12:56, Stefan Karlsson wrote:
>> Hi all,
>>
>> Please review this patch to simplify how we generate the different 
>> parts of the JVM flags code.
>>
>> https://cr.openjdk.java.net/~stefank/8224201/webrev.01/
>> https://bugs.openjdk.java.net/browse/JDK-8224201
>>
>> Notable parts of the patch:
>> - Introduces a ALL_FLAGS macro, used to expand code for all flags.
>> - Uses the ALL_FLAGS where appropriate.
>> - Constraints list didn't expand JVMCI flags. Fixed by using ALL_FLAGS.
>> - Moved <sub-system>_globals.hpp generated declarations to be expanded 
>> in globals.hpp.
>> - Unified FLAG_MEMBER and FLAG_MEMBER_WITH_TYPE into FLAG_MEMBER_ENUM 
>> and change names accordingly.
>>
>> This change makes it easier to do future changes to the JVM flags 
>> handling code. For example: "JDK-8224203Remove need to specify type 
>> when using FLAG_SET macros"
>>
>> Compiled on tier1 platforms.
>>
>> Thanks,
>> StefanK
>>