Hotspot loves PHP.reboot
Charles Oliver Nutter
headius at headius.com
Tue Sep 6 11:26:22 PDT 2011
On Tue, Sep 6, 2011 at 12:33 PM, Christian Thalinger
<christian.thalinger at oracle.com> wrote:
> We already talked a bit about that some while ago. I think matching that double-xor-trick (or whatever it's called) is too risky. A JDK method that does the check (and the math?) would be nice so we can intrinsify it. GWT would fit here.
Yeah, talking with Kris Mok over Twitter we both agreed that an
intrinsic would be preferable. Prescribing a specific code shape is
fragile and dangerous if someone actually wants the xors in place (a
JO instruction would not be 100% equivalent, obviously).
> Btw. what means JO?
Jump if Overflow.
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