P4
We can consider enhancing the debug printouts in this optimization phase due to recently identified bugs in this area.
Suggestions:
- dump the start/end nodes for each pair that is considered for stacked string concatenations, and the number of arguments for both concats (JDK-8362394)
- print IGV graphs between each call to replace_string_concat
- Add a CITime category for stringopts (found throughJDK-8362394)
- Hide the existing control flow printing behind a Verbose flag
Suggestions:
- dump the start/end nodes for each pair that is considered for stacked string concatenations, and the number of arguments for both concats (
- print IGV graphs between each call to replace_string_concat
- Add a CITime category for stringopts (found through
- Hide the existing control flow printing behind a Verbose flag
- relates to
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JDK-8362117 C2: compiler/stringopts/TestStackedConcatsAppendUncommonTrap.java fails with a wrong result due to invalidated liveness assumptions for data phis
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- Open
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- Resolved
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