RFR(S): 8159368: [JVMCI] SPARCHotSpotRegisterConfig.callingConvention gives incorrect calling convention for native calls containing fp args

[Vladimir Kozlov]

Hi Stefan,

webrev.03 patch does not apply to latest hs-comp/hotspot sources. Can 
you update it?

Thanks,
Vladimir

On 6/17/16 12:14 AM, Stefan Anzinger wrote:
> Thank you, Igor.
>
> I've updated a webrev with the header in the .c file:
> http://cr.openjdk.java.net/~sanzinger/8159368/webrev.02/
> The change is best applied on top of 8159167: [JVMCI] fix
> HotSpotVMConfig startup performance
>
> Thank you
> Stefan
>
> On 06/16/2016 05:03 PM, Igor Veresov wrote:
>> The .c file probably needs a copyright header. Otherwise looks good.
>>
>> igor
>>
>>> On Jun 16, 2016, at 4:54 AM, Stefan Anzinger <stefan.anzinger at oracle.com> wrote:
>>>
>>> Hello,
>>>
>>> we found a bug in the JVMCI defined SPARC calling convention when
>>> calling native methods with single float arguments. Previously the
>>> HotSpot Calling Convention was used, which is different to the one
>>> defined in the native ABI [1].
>>>
>>> This fix implements the correct native calling convention in the SPARC
>>> ABI [1] in SPARCHotSpotRegisterConfig.java.
>>>
>>> The rest of the change is a jtreg test which exercises native calls on
>>> AMD64 and SPARC with code installed via JVMCI. Different parameter types
>>> and argument counts are tested.
>>>
>>> https://bugs.openjdk.java.net/browse/JDK-8159368
>>> http://cr.openjdk.java.net/~sanzinger/8159368/webrev.01/
>>>
>>> Reference:
>>> [1] http://sparc.org/wp-content/uploads/2014/01/SCD.2.4.1.pdf.gz
>>>
>>> Stefan
>