RFR: 8171853: Remove Shark compiler

[Roman Kennke]

Hi Erik,

You mean like this?

http://cr.openjdk.java.net/~rkennke/8171853/webrev.04.diff/ 
<http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.04.diff/>

Full webrev here:
http://cr.openjdk.java.net/~rkennke/8171853/webrev.04/ 
<http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.04/>

Thanks,
Roman

> Hello Roman,
>
> In hotspot.m4, I believe the check on line 328 (pre changes) is still 
> relevant for just the zero case.
>
> Otherwise build changes look good to me.
>
> /Erik
>
>
> On 2017-10-16 00:00, Roman Kennke wrote:
>>
>> Ok, I fixed all the comments you mentioned.
>>
>> Differential (against webrev.01):
>> http://cr.openjdk.java.net/~rkennke/8171853/webrev.03.diff/ 
>> <http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.03.diff/>
>> Full webrev:
>> http://cr.openjdk.java.net/~rkennke/8171853/webrev.03/ 
>> <http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.03/>
>>
>> Roman
>>
>>> Just spotted this:
>>>
>>> ./hotspot/jtreg/compiler/whitebox/CompilerWhiteBoxTest.java: /** 
>>> {@code CompLevel::CompLevel_full_optimization} -- C2 or Shark */
>>>
>>> David
>>>
>>> On 16/10/2017 7:25 AM, David Holmes wrote:
>>>> On 16/10/2017 7:01 AM, Roman Kennke wrote:
>>>>> Hi David,
>>>>>
>>>>> thanks!
>>>>>
>>>>> I'm uploading a 2nd revision of the patch that excludes the 
>>>>> generated-configure.sh part, and adds a smallish Zero-related fix.
>>>>>
>>>>> http://cr.openjdk.java.net/~rkennke/8171853/webrev.01/ 
>>>>> <http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.01/>
>>>>
>>>> Can you point me to the exact change please as I don't want to 
>>>> re-examine it all. :)
>>>>
>>>> I'll pull this in and do a test build run internally.
>>>>
>>>> Thanks,
>>>> David
>>>>
>>>>> Thanks, Roman
>>>>>
>>>>>
>>>>>> Hi Roman,
>>>>>>
>>>>>> The build changes must be reviewed on build-dev - now cc'd.
>>>>>>
>>>>>> Thanks,
>>>>>> David
>>>>>>
>>>>>> On 15/10/2017 8:41 AM, Roman Kennke wrote:
>>>>>>> The JEP to remove the Shark compiler has received exclusively 
>>>>>>> positive feedback (JDK-8189173) on zero-dev. So here comes the 
>>>>>>> big patch to remove it.
>>>>>>>
>>>>>>> What I have done:
>>>>>>>
>>>>>>> grep -i -R shark src
>>>>>>> grep -i -R shark make
>>>>>>> grep -i -R shark doc
>>>>>>> grep -i -R shark doc
>>>>>>>
>>>>>>> and purged any reference to shark. Almost everything was 
>>>>>>> straightforward.
>>>>>>>
>>>>>>> The only things I wasn't really sure of:
>>>>>>>
>>>>>>> - in globals.hpp, I re-arranged the KIND_* bits to account for 
>>>>>>> the gap that removing KIND_SHARK left. I hope that's good?
>>>>>>> - in relocInfo_zero.hpp I put a ShouldNotCallThis() in 
>>>>>>> pd_address_in_code(), I am not sure it is the right thing to do. 
>>>>>>> If not, what *would* be the right thing?
>>>>>>>
>>>>>>> Then of course I did:
>>>>>>>
>>>>>>> rm -rf src/hotspot/share/shark
>>>>>>>
>>>>>>> I also went through the build machinery and removed stuff 
>>>>>>> related to Shark and LLVM libs.
>>>>>>>
>>>>>>> Now the only references in the whole JDK tree to shark is a 
>>>>>>> 'Shark Bay' in a timezone file, and 'Wireshark' in some tests ;-)
>>>>>>>
>>>>>>> I tested by building a regular x86 JVM and running JTREG tests. 
>>>>>>> All looks fine.
>>>>>>>
>>>>>>> - I could not build zero because it seems broken because of the 
>>>>>>> recent Atomic::* changes
>>>>>>> - I could not test any of the other arches that seemed to 
>>>>>>> reference Shark (arm and sparc)
>>>>>>>
>>>>>>> Here's the full webrev:
>>>>>>>
>>>>>>> http://cr.openjdk.java.net/~rkennke/8171853/webrev.00/ 
>>>>>>> <http://cr.openjdk.java.net/%7Erkennke/8171853/webrev.00/>
>>>>>>>
>>>>>>> Can I get a review on this?
>>>>>>>
>>>>>>> Thanks, Roman
>>>>>>>
>>>>>
>>
>