Request for reviews (L): 7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect

[Vladimir Kozlov]

Thanks, Christian

Vladimir

Christian Thalinger wrote:
> Looks good.  -- Chris
> 
> On Sep 14, 2012, at 9:17 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> 
>> http://cr.openjdk.java.net/~kvn/7196199/webrev
>>
>> Upper bits (64-255) of XMM (YMM) registers (used for vectors in compiled code) are destroyed in 32 bit VM because movsd instructions are used to saved/restored xmm registers in safepoint interrupt handler. Also in 64-bit VM upper half of YMM registers are not saved in safepoint interrupt handler.
>>
>> Always save full (128 bit) XMM registers in 32-bit VM if UseSSE >= 2.
>> Save upper half of YMM registers during loop safepoint if a compiled method has 256bit vectors.
>>
>> Thanks,
>> Vladimir
>