[9] RFR (XXS): 8152857: [TESTBUG] UnsafeGetConstantField.testUnsafeGetFieldUnaligned fails w/ -XX:-UseUnalignedAccesses in -Xcomp mode

[Vladimir Ivanov]

Tobias, Vladimir, thanks!

Best regards,
Vladimir Ivanov

On 3/29/16 7:12 PM, Vladimir Kozlov wrote:
> Good.
>
> Thanks,
> Vladimir K
>
> On 3/29/16 3:39 AM, Vladimir Ivanov wrote:
>> https://bugs.openjdk.java.net/browse/JDK-8152857
>>
>> The test fails w/ -XX:-UseUnalignedAccesses in -Xcomp mode because
>> inlining of Unsafe.getIntUnaligned() fails.
>>
>> The fix [1] is to force the inlining to get the unsafe load constant
>> folded.
>>
>> Best regards,
>> Vladimir Ivanov
>>
>> [1]
>> diff --git a/test/compiler/unsafe/UnsafeGetConstantField.java
>> b/test/compiler/unsafe/UnsafeGetConstantField.java
>> --- a/test/compiler/unsafe/UnsafeGetConstantField.java
>> +++ b/test/compiler/unsafe/UnsafeGetConstantField.java
>> @@ -46,6 +46,7 @@
>>    *                         -XX:+FoldStableValues
>>    *
>> -XX:CompileCommand=dontinline,UnsafeGetConstantField.checkGetAddress()
>>    *                         -XX:CompileCommand=dontinline,*.test*
>> + *                         -XX:CompileCommand=inline,*Unsafe.get*
>>    *                         -XX:-UseUnalignedAccesses
>>    *                         compiler.unsafe.UnsafeGetConstantField
>>    */