RFR: 8216385: ZGC: Fix building without C2

[Per Liden]

Ah, good point. It works anyway, but I will add that. I never use PCH.

Thanks!
/Per

On 01/08/2019 09:22 PM, Aleksey Shipilev wrote:
> One nit: util/macro.hpp should be included to gain access to COMPILER2, try without PCH?
> 
> -Aleksey
> 
> On 1/8/19 9:20 PM, Per Liden wrote:
>> Thanks Aleksey!
>>
>> /Per
>>
>> On 01/08/2019 09:17 PM, Aleksey Shipilev wrote:
>>> On 1/8/19 9:14 PM, Per Liden wrote:
>>>> Building without C2 enabled (e.g. a client VM variant) fails after JDK-8215547, which introduced
>>>> unconditional uses of "MaxVectorSize", a symbol only available when C2 is enabled.
>>>>
>>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8216385
>>>> Webrev: http://cr.openjdk.java.net/~pliden/8216385/webrev.0
>>>
>>> Looks fine and trivial.
>>>
>>> -Aleksey
>>>
> 
>