RFR(XS): 8028207: assert(_outcnt==1) failed: not unique in compile.cpp
rickard.backman at oracle.com
Tue Nov 12 22:10:04 PST 2013
Thank you Igor.
On 11/12, Igor Veresov wrote:
> Looks good.
> May be later we can match this pattern with a conditional setting of a bool, an then branching on it in multiple places?
> On Nov 12, 2013, at 6:23 AM, Rickard Bäckman <rickard.backman at oracle.com> wrote:
> > Hi,
> > can I have this small change reviewed please?
> > When having two MathExactNodes with identical input, where one doesn't
> > dominate the other we get a problem where the BoolNode controlling the
> > overflow gets multiple IfNodes.
> > In final_graph_reshaping we want to set the control edge of each node
> > that uses the result of the MathExactNode to the non-throwing branch of
> > that If. If there is more than one there is no way of saying which use
> > requires which If.
> > Webrev: http://cr.openjdk.java.net/~rbackman/8028207/
> > Bug: https://bugs.openjdk.java.net/browse/JDK-8028207
> > Thanks
> > /R
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