JDK-6365558 : Win AMD64 PSDK Hotspot with /O2 generates bad code for CompressedLineNumberWriteStream::write_pair
- Type: Bug
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 6
- Priority: P3
- Status: Closed
- Resolution: Fixed
- OS: windows
- CPU: x86
- Submitted: 2005-12-20
- Updated: 2012-10-08
- Resolved: 2006-01-19
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| JDK 6 |
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6 b67Fixed  |
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Description
When built with the April 2005 Platform SDK on AMD64 with /O2, Hotspot fails a number of NSK tests (the complete list is attached). The failures are due to the PSDK optimizing compiler generating bad code for CompressedLineNumberWriteStream::write_pair. As a result when line number tables are read from class files, every line number is mapped to a bci of 0, causing problems when the JDI tests try to set breakpoints.
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