Safepoints at backward branches in c2
gbenson at redhat.com
Tue May 13 00:53:33 PDT 2008
Jonathan Springer wrote:
> Gary Benson wrote:
> > I've been looking through the c2 code and I noticed that safepoint
> > checks are inserted before backward branches but not forward
> > branches. Why is this?
> I believe that safepoints should be executed within a bounded amount
> of computation. Placing them at all backwards branches (and calls)
> guarantees that there are no loops without at least one safepoint.
Interesting. Where should the safepoints be in calls? I know the
C++ interpreter puts one before every return, but is there somewhere
else I should be putting one too?
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