JDK-8237086 : assert(is_MachReturn()) running CTW with fix for JDK-8231291
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 10,11,14,15
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-01-14
- Updated: 2022-06-27
- Resolved: 2020-02-07
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Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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| JDK 11 | JDK 13 | JDK 15 |
|---|---|---|
| 11.0.8-oracleFixed | 13.0.4Fixed | 15 b10Fixed  |
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Description
# Internal Error (src/hotspot/share/opto/node.hpp:852), pid=1623963, tid=1623975 # assert(is_MachReturn()) failed: invalid node class root cause is that GraphKit::must_be_not_null() is called with a known to be non null input. This causes the null branch of the test to be optimized to top and a top be added to the RootNode. RootNode::Ideal() is never called to clean the top inputs and the assert is hit during matching.
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