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ac434d7750
In the current state, if getFromHash(0) is called and there's no CU with dwo_id=0, the lookup will stop at an empty slot, then the check `Rows[H].getSignature() != S` won't cause the lookup to fail and return a nullptr (as it should), because the empty slot has a 0 in the signature field, and a pointer to the empty slot will be incorrectly returned. This patch fixes this by using the index field in the hash entry to check for empty slots: signature = 0 can match a valid hash but according to the spec the index for an occupied slot will always be non-zero. Differential Revision: https://reviews.llvm.org/D91670 |
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