JDK-8174164 : SafePointNode::_replaced_nodes breaks with irreducible loops
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 8,9
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2017-02-08
- Updated: 2022-10-03
- Resolved: 2017-02-16
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| JDK 10 | JDK 8 | JDK 9 | Other |
|---|---|---|---|
10Fixed  |
8u141Fixed |
9 b159Fixed |
openjdk7uFixed |
Related Reports
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Description
Handling of SafePointNode::_replaced_nodes is incompatible with irreducible loops: replaced nodes can be propagated and applied before all predecessor blocks are processed which can lead to a broken graph. This was observed by one of our customers (crash in the compiler). The compilation in that case is an OSR compilation: OSR compilations can cause irreducible loops to appear even if the methods to be compiled have no irreducible loop.
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