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

Christian Thalinger christian.thalinger at oracle.com
Fri Sep 14 16:04:59 PDT 2012

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

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