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Type:
Enhancement
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Resolution: Unresolved
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Priority:
P4
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Affects Version/s: 26
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Component/s: hotspot
While there are existing fuzzers like javafuzzer that find bugs in C2, we find that the generated programs take quite a while to find and are overly contrived, whereas most C2 bugs (also those found by a fuzzer) have a rather small reproducer. Our hypothesis is that a fuzzer that instruments C2 for feedback (e.g. what optimizations took place) and takes existing test cases as seeds, could be guided to quicker and smaller finds. Further, such a fuzzer should also cover new java features currently not covered by other fuzzers we are employing.
- relates to
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JDK-8370416 C2: Optimizing away arraycopy leads to wrong execution
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- Open
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- Open
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- Resolved
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- Open
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