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Quick Lists
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Bug ID:
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6515373
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Votes
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0
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Synopsis
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Self referenced phi causes assert in falltrough case in RegionNode::Ideal
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Category
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hotspot:compiler2
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Reported Against
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Release Fixed
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hs10(b07),
6u2(b01) (Bug ID:2146112)
, 7(b07) (Bug ID:2176841)
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State
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10-Fix Delivered,
bug
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Priority:
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2-High
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Related Bugs
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5067347
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Submit Date
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19-JAN-2007
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Description
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Self referenced phi causes assert in falltrough case in RegionNode::Ideal():
assert(dead->outcnt() == 0 && !dead->is_top(), "node must be dead");
The stack looks like:
[3] PhaseIterGVN::remove_dead_node()
[4] PhaseIterGVN::subsume_node()
[5] RegionNode::Ideal()
[6] PhaseIterGVN::transform_old()
[7] PhaseIterGVN::optimize
The ideal case has found a phi with a single input and wants to replace it. The single input is itself!
2644 Phi === 2641 2644
Posted Date : 2007-01-19 20:38:44.0
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Work Around
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N/A
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Evaluation
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The assert is causes by this call where n == n->in(1):
igv->subsume_node(n, n->in(1));
Posted Date : 2007-01-19 20:38:44.0
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Comments
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PLEASE NOTE: JDK6 is formerly known as Project Mustang
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