[aarch64-port-dev ] RFR(XS): 8211320: Aarch64: unsafe.compareAndSetByte() and unsafe.compareAndSetShort() c2 intrinsics broken with negative expected value

[Andrew Haley]

On 10/11/2018 09:05 AM, Roland Westrelin wrote:
> 
>> I'm getting many test failures in my debug build because of nag messages
>> for things like CMS deprecation and
>>
>> TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: stderr was not empty
>>
>> There must be some way to make jtreg ignore the noise, surely. I don't know
>> how you managed to run the tests.
> 
> Are you trying to run this bug's test (which has nothing to do with
> CMS)? Or are you talking about 8209835 "Aarch64: elide barriers on all
> volatile operations" (which runs some subtest with CMS)?
> 
> Anyway, I updated to current jdk/jdk, rebased, rebuilt and I can run the
> tests of both bugs fine with:
> 
> jtreg -ignore:quiet -conc:8 -dir:<path to jdk>/test/hotspot/jtreg -compilejdk:<path to jdk>/build/linux-aarch64-normal-server-fastdebug/images/jdk -testjdk:<path to jdk>/build/linux-aarch64-normal-server-fastdebug/images/jdk -va -javaoptions:'-server' compiler/c2/aarch64/
> 
> and
> 
> jtreg -ignore:quiet -conc:8 -dir:<path to jdk>/test/hotspot/jtreg -compilejdk:<path to jdk>/build/linux-aarch64-normal-server-fastdebug/images/jdk -testjdk:<path to jdk>/build/linux-aarch64-normal-server-fastdebug/images/jdk -va -javaoptions:'-server' compiler/unsafe/CASandCAEwithNegExpected.java

Exactly the same:

 $ jtreg -ignore:quiet -conc:8 -dir:$JDK/test/hotspot/jtreg \
 -compilejdk:$JDK/build/linux-aarch64-server-fastdebug/images/jdk \
 -testjdk:$JDK/build/linux-aarch64-server-fastdebug/images/jdk -va \
 -javaoptions:'-server' compiler/c2/aarch64/

...
        --add-modules java.base \
        --add-exports java.base/jdk.internal.misc=ALL-UNNAMED \
        -server \
        com.sun.javatest.regtest.agent.MainWrapper /local/x/JTwork/compiler/c2/aarch64/TestVolatilesG1.d/driver.6.jta TestUnsafeVolatileCAS G1

TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: stderr was not empty

I don't understand what is going on. Can you try with
jtreg-4.2-b13.tar.gz from
https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/ ?

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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