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Bug
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Resolution: Fixed
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P4
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None
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b08
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8293426 | 15.0.9 | Yuri Nesterenko | P4 | Resolved | Fixed | b04 |
| JDK-8293582 | 13.0.13 | Yuri Nesterenko | P4 | Resolved | Fixed | b04 |
| JDK-8304851 | 11.0.20-oracle | Fairoz Matte | P4 | Resolved | Fixed | b01 |
| JDK-8267863 | 11.0.12 | Yasumasa Suenaga | P4 | Resolved | Fixed | b05 |
I saw some warnings in JFR code when I tried to build OpenJDK with GCC 10.1.1 on Fedora 32:
```
/home/ysuenaga/OpenJDK/jdk/src/hotspot/share/jfr/utilities/jfrHashtable.hpp:86:14: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits]
86 | assert(h >= 0 && h < _table_size, "Illegal hash value");
| ~~^~~~
```
```
/home/ysuenaga/OpenJDK/jdk/src/hotspot/share/jfr/utilities/jfrDoublyLinkedList.hpp:138:17: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits]
138 | assert(_count >= 0, "invariant");
```
Both `h` and `_cound` are unsigned type, so we can remove them.
```
/home/ysuenaga/OpenJDK/jdk/src/hotspot/share/jfr/utilities/jfrHashtable.hpp:86:14: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits]
86 | assert(h >= 0 && h < _table_size, "Illegal hash value");
| ~~^~~~
```
```
/home/ysuenaga/OpenJDK/jdk/src/hotspot/share/jfr/utilities/jfrDoublyLinkedList.hpp:138:17: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits]
138 | assert(_count >= 0, "invariant");
```
Both `h` and `_cound` are unsigned type, so we can remove them.
- backported by
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JDK-8267863 GCC 10 warnings -Wtype-limits with JFR code
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- Resolved
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- Resolved
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- Resolved
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- Resolved
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- links to
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Commit
openjdk/jdk13u-dev/29b5ddce
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Commit
openjdk/jdk15u-dev/bcc79e20
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Review
openjdk/jdk13u-dev/399
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Review
openjdk/jdk15u-dev/271
(3 links to)